chore: bump version to 0.9.0

Replayed or cancelled conversations could produce assistant messages
with content=None and no tool_calls, which OpenAI-compatible APIs
reject with a 400.  Fix at three layers for defense in depth:

- session.py: use empty string instead of None when building assistant
  messages (streaming + cancellation paths)
- _utils.py: normalise content on DB load in reconstruct_messages()
- _openai.py: add _sanitize_messages() catch-all at provider boundary

Closes #194

.github/workflows/ci.yml

@@ -67,7 +67,7 @@ jobs:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6
       - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
         with:
-          python-version: "3.12"
+          python-version: "3.14"
       - run: pip install -e ".[test,mq,postgres]"
       - run: pytest tests/ -m "not live" --storage-backend=postgresql -q
         env:

.github/workflows/publish.yml

@@ -19,7 +19,7 @@ jobs:
           python-version: "3.14"
       - run: pip install build
       - run: python -m build
-      - uses: pypa/gh-action-pypi-publish@release/v1
+      - uses: pypa/gh-action-pypi-publish@ed0c53931b1dc9bd32cbe73a98c7f6766f8a527e # release/v1
 
       - name: Create GitHub Release
         uses: softprops/action-gh-release@153bb8e04406b158c6c84fc1615b65b24149a1fe # v2

Dockerfile

@@ -8,7 +8,7 @@ FROM python:3.14-slim
 LABEL org.opencontainers.image.title="turnstone" \
       org.opencontainers.image.description="Multi-node AI orchestration platform"
 
-COPY --from=ghcr.io/astral-sh/uv:0.11.1 /uv /usr/local/bin/uv
+COPY --from=ghcr.io/astral-sh/uv:0.11.2 /uv /usr/local/bin/uv
 
 # System dependencies for psycopg (PostgreSQL client library)
 RUN apt-get update && apt-get upgrade -y && apt-get install -y --no-install-recommends libpq5 \
@@ -25,12 +25,12 @@ ENV UV_COMPILE_BYTECODE=1
 # Install dependencies first (cached layer — only re-runs when deps change)
 COPY pyproject.toml uv.lock README.md LICENSE ./
 RUN uv sync --frozen --no-install-project --no-dev \
-    --extra mq --extra console --extra sim --extra postgres --extra discord --extra anthropic --extra ddg
+    --extra all
 
 # Install the project itself
 COPY turnstone/ turnstone/
 RUN uv sync --frozen --no-dev \
-    --extra mq --extra console --extra sim --extra postgres --extra discord --extra anthropic --extra ddg
+    --extra all
 
 # Add venv to PATH so entry points are found
 ENV PATH="/app/.venv/bin:$PATH"

deploy/docker-compose.tls.yml

@@ -0,0 +1,146 @@
+# TLS overlay — enables mTLS across the turnstone cluster.
+#
+# Usage (requires base compose.yaml with production profile):
+#   docker compose -f compose.yaml -f deploy/docker-compose.tls.yml --profile production up
+#
+# The tls-init service bootstraps a CA and issues a cert for Redis.
+# All turnstone services auto-provision their own certs via the
+# console's ACME endpoint.
+
+services:
+  # Bootstrap: create CA + Redis cert before anything starts.
+  # Runs as root to create directories in the volume, then chowns
+  # to turnstone:turnstone with restrictive perms (keys 0600).
+  tls-init:
+    build: .
+    user: root
+    command:
+      - sh
+      - -c
+      - |
+        set -e
+        turnstone-admin tls-bootstrap --out /certs --issue redis
+        chown -R turnstone:turnstone /certs
+        find /certs -type d -exec chmod 750 {} +
+        find /certs -type f -name '*key.pem' -exec chmod 600 {} +
+        find /certs -type f ! -name '*key.pem' -exec chmod 640 {} +
+    volumes:
+      - tls-certs:/certs
+    networks:
+      - turnstone-net
+    restart: "no"
+
+  # Console: runs the internal CA + ACME server
+  console:
+    depends_on:
+      tls-init:
+        condition: service_completed_successfully
+    volumes:
+      - tls-certs:/certs:ro
+    environment:
+      TURNSTONE_TLS_ENABLED: "true"
+      TURNSTONE_TLS_SANS: "console"
+      TURNSTONE_CONSOLE_URL: "http://console:8090"
+    command:
+      - turnstone-console
+      - --host=0.0.0.0
+      - --port=8090
+      - --redis-host=redis
+      - --redis-port=6379
+      - --poll-interval=${CONSOLE_POLL_INTERVAL:-10}
+      - --redis-tls
+      - --redis-tls-ca=/certs/ca.pem
+
+  # Server: auto-provisions certs via console ACME, serves HTTPS
+  server:
+    depends_on:
+      console:
+        condition: service_healthy
+    volumes:
+      - tls-certs:/certs:ro
+    environment:
+      TURNSTONE_TLS_ENABLED: "true"
+      TURNSTONE_TLS_SANS: "server"
+    # Disable healthcheck — server serves HTTPS with mTLS which the
+    # stdlib healthcheck script can't satisfy. The base compose
+    # healthcheck uses plain HTTP which won't work on an HTTPS listener.
+    # TODO: wire healthcheck with client cert from /certs volume
+    healthcheck:
+      disable: true
+
+  # Bridge: mTLS to server + Redis TLS
+  bridge:
+    depends_on:
+      console:
+        condition: service_healthy
+      server:
+        condition: service_started
+      redis:
+        condition: service_healthy
+    volumes:
+      - tls-certs:/certs:ro
+    environment:
+      TURNSTONE_TLS_ENABLED: "true"
+      TURNSTONE_TLS_SANS: "bridge"
+    command:
+      - turnstone-bridge
+      - --server-url=http://server:8080
+      - --redis-host=redis
+      - --redis-port=6379
+      - --heartbeat-ttl=${HEARTBEAT_TTL:-60}
+      - --approval-timeout=${APPROVAL_TIMEOUT:-3600}
+      - --redis-tls
+      - --redis-tls-ca=/certs/ca.pem
+
+  # Channel: Redis TLS
+  channel:
+    depends_on:
+      console:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    volumes:
+      - tls-certs:/certs:ro
+    environment:
+      TURNSTONE_TLS_ENABLED: "true"
+      TURNSTONE_TLS_SANS: "channel"
+    command:
+      - sh
+      - -c
+      - >-
+        turnstone-channel
+        --redis-host=redis
+        --redis-port=6379
+        --redis-tls
+        --redis-tls-ca=/certs/ca.pem
+        --http-host=0.0.0.0
+        $${TURNSTONE_DISCORD_GUILD:+--discord-guild $$TURNSTONE_DISCORD_GUILD}
+
+  # Redis: TLS with certs from bootstrap
+  redis:
+    depends_on:
+      tls-init:
+        condition: service_completed_successfully
+    volumes:
+      - tls-certs:/certs:ro
+    command:
+      - sh
+      - -c
+      - |
+        ARGS="--tls-port 6379 --port 0 \
+          --tls-cert-file /certs/certs/redis/cert.pem \
+          --tls-key-file /certs/certs/redis/key.pem \
+          --tls-ca-cert-file /certs/ca.pem \
+          --tls-auth-clients no"
+        if [ -n "$$REDIS_PASSWORD" ]; then
+          ARGS="$$ARGS --requirepass $$REDIS_PASSWORD"
+        fi
+        exec redis-server $$ARGS
+    healthcheck:
+      test: ["CMD-SHELL", "if [ -n \"$$REDIS_PASSWORD\" ]; then redis-cli --tls --cacert /certs/ca.pem -a $$REDIS_PASSWORD ping; else redis-cli --tls --cacert /certs/ca.pem ping; fi"]
+      interval: 5s
+      timeout: 3s
+      retries: 5
+
+volumes:
+  tls-certs:

docs/architecture.md

@@ -91,7 +91,7 @@ turnstone/
     _config.py        Base ChannelConfig dataclass
     discord/          Discord adapter (bot, cog, views, streaming, config)
   shared_static/      Shared design system (base.css, auth.js, theme.js, toast.js, utils.js, kb.js)
-    katex-0.16.42/    Vendored KaTeX math rendering library (MIT, woff2 fonts)
+    katex-0.16.43/    Vendored KaTeX math rendering library (MIT, woff2 fonts)
   ui/
     colors.py         ANSI color constants with NO_COLOR support
     markdown.py       Streaming terminal markdown renderer (line-buffered)

docs/tls.md

@@ -0,0 +1,221 @@
+# TLS / mTLS
+
+Turnstone supports end-to-end transport encryption with mutual TLS (mTLS) for
+inter-service communication, powered by [lacme](https://pypi.org/project/lacme/).
+
+---
+
+## Quick Start (Docker Compose)
+
+```bash
+docker compose -f compose.yaml -f deploy/docker-compose.tls.yml up
+```
+
+This:
+1. Bootstraps an internal CA and issues certs for Redis/PostgreSQL
+2. Starts the console with TLS enabled (internal CA + ACME server)
+3. Server nodes auto-provision certs via the console's ACME endpoint
+4. All inter-service communication uses mTLS
+
+---
+
+## Architecture
+
+```
+Console (CA + ACME Server)
+  +-- CertificateAuthority (owns root key, signs certs)
+  +-- ACMEResponder (mounted at /acme, RFC 8555)
+  +-- GET /acme/ca.pem (root cert for node bootstrapping)
+                  |
+                  | ACME protocol (auto-approve, no challenge validation)
+      +-----------+-----------+
+      |           |           |
+  Server(s)    Bridge    Channel GW
+  (auto-cert    (mTLS     (mTLS
+   + renewal)   client)    client)
+```
+
+**Two cert paths on the console:**
+- **Internal cert** (mTLS): Always from the internal CA. Used for cluster
+  service mesh communication.
+- **Frontend cert** (HTTPS): From an external ACME CA (e.g. Let's Encrypt)
+  if `tls.acme_directory` is set, otherwise self-issued from the internal CA.
+
+---
+
+## Configuration
+
+### Settings (ConfigStore / Admin Settings tab)
+
+| Setting | Default | Description |
+|---------|---------|-------------|
+| `tls.enabled` | `false` | Master switch for internal mTLS |
+| `tls.acme_directory` | `""` | External ACME CA URL for console frontend cert |
+
+### Bootstrap Config (config.toml)
+
+These are needed before storage is available:
+
+```toml
+[redis]
+tls = false
+tls_ca = ""      # path to CA cert
+tls_cert = ""    # path to client cert
+tls_key = ""     # path to client key
+
+[database]
+sslmode = "prefer"   # disable, allow, prefer, require, verify-full
+sslrootcert = ""     # path to CA cert
+sslcert = ""         # path to client cert
+sslkey = ""          # path to client key
+```
+
+### Hardcoded Defaults
+
+| Parameter | Value | Notes |
+|-----------|-------|-------|
+| CA common name | "Turnstone CA" | |
+| CA validity | 10 years | |
+| Cert validity | 48 hours | Short-lived, auto-renewed |
+| Renewal interval | 24 hours | Half of validity |
+| ACME auto-approve | true | Internal network, no challenge validation |
+
+---
+
+## CLI
+
+### Offline Bootstrap
+
+Create a CA and infrastructure certs without a running console:
+
+```bash
+# Bootstrap CA + Redis + PostgreSQL certs
+turnstone-admin tls-bootstrap --out /certs --issue redis --issue postgres
+
+# Output:
+#   /certs/ca.pem              (CA root certificate)
+#   /certs/certs/redis/        (Redis cert + key)
+#   /certs/certs/postgres/     (PostgreSQL cert + key)
+```
+
+The output directory is chmod 0700 (contains the CA private key).
+
+### Online Cert Issuance
+
+Request certs from a running console's ACME endpoint:
+
+```bash
+# Download CA root cert (TOFU — verify fingerprint)
+turnstone-admin tls-ca-cert --out ca.pem --console-url http://console:8080
+
+# Request a cert for a domain
+turnstone-admin tls-issue worker-1.internal --out /certs --console-url http://console:8080
+
+# List issued certs
+turnstone-admin tls-list --console-url http://console:8080 --auth-token $TOKEN
+```
+
+### Console URL Discovery
+
+If `--console-url` is not provided, the CLI discovers it from the `services`
+table in the shared database. The console registers itself on startup.
+
+---
+
+## Admin UI
+
+The **TLS** tab in the console admin panel (System group) shows:
+- CA status (common name, certificate count)
+- Certificate table (domain, SANs, issued, expires)
+- Force-renew and delete actions per certificate
+
+---
+
+## SDK
+
+### Python
+
+```python
+from turnstone.sdk import TurnstoneServer
+
+client = TurnstoneServer(
+    base_url="https://server:8080",
+    token="tok_xxx",
+    ca_cert="/path/to/ca.pem",
+    client_cert="/path/to/cert.pem",
+    client_key="/path/to/key.pem",
+)
+```
+
+### TypeScript
+
+```typescript
+import { TurnstoneServer } from "@turnstone/sdk";
+import { Agent } from "undici";
+import * as fs from "fs";
+
+const agent = new Agent({
+  connect: {
+    ca: fs.readFileSync("/path/to/ca.pem"),
+    cert: fs.readFileSync("/path/to/cert.pem"),
+    key: fs.readFileSync("/path/to/key.pem"),
+  },
+});
+
+const client = new TurnstoneServer({
+  baseUrl: "https://server:8080",
+  token: "tok_xxx",
+  // Node.js 18+ uses undici under the hood
+  fetch: (url, init) =>
+    fetch(url, { ...init, dispatcher: agent } as RequestInit),
+});
+```
+
+---
+
+## How It Works
+
+### Node Bootstrap Flow
+
+1. Node starts, connects to shared database (plain connection)
+2. Discovers console URL from `services` table
+3. Fetches CA root cert from `http://console/acme/ca.pem` (plain HTTP, TOFU)
+4. Requests service cert via ACME protocol (plain HTTP, JWS-signed)
+5. Starts auto-renewal (24h interval, re-issues before expiry)
+6. All subsequent inter-service communication uses mTLS
+
+### Console Startup Flow
+
+1. Read `tls.enabled` from ConfigStore
+2. Initialize CA (load from DB or generate new root key)
+3. Mount ACME responder at `/acme` (serves `/ca.pem` natively)
+4. Issue console certs (internal + optional frontend)
+5. Start CA-direct auto-renewal (no network, signs directly)
+6. Register console URL in services table with heartbeat
+
+---
+
+## Troubleshooting
+
+### Cert expired / mTLS connection refused
+
+Certs are valid for 48 hours. If auto-renewal stopped (e.g. console was down),
+restart the service to re-request a cert.
+
+### "No console service found"
+
+The console registers itself in the `services` table on startup. If the console
+hasn't started or the registration expired (1 hour TTL), nodes can't discover
+it. Use `--console-url` explicitly.
+
+### Let's Encrypt for console frontend
+
+Set `tls.acme_directory` to `https://acme-v02.api.letsencrypt.org/directory`
+in the admin Settings tab. The console will request a publicly trusted cert
+for its HTTPS endpoint. Internal mTLS still uses the private CA.
+
+### Verifying the cert chain
+
+```bash
+openssl s_client -connect server:8080 -CAfile ca.pem
+```

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "turnstone"
-version = "0.8.8"
+version = "0.9.0"
 description = "Multi-node AI orchestration platform with tool use, agent routing, and cluster simulation."
 readme = "README.md"
 license = "BUSL-1.1"
@@ -53,7 +53,8 @@ anthropic = ["anthropic>=0.39"]
 postgres = ["psycopg[binary]>=3.2"]
 ddg = ["ddgs>=9.0"]
 discord = ["discord.py>=2.4", "redis>=7.2"]
-all = ["turnstone[mq,console,sim,anthropic,postgres,discord,ddg]"]
+tls = ["lacme>=1.0.4"]
+all = ["turnstone[mq,console,sim,anthropic,postgres,discord,ddg,tls]"]
 
 [project.scripts]
 turnstone = "turnstone.cli:main"
@@ -78,7 +79,7 @@ include = [
   "turnstone/console/static/*.js",
   "turnstone/shared_static/*.css",
   "turnstone/shared_static/*.js",
-  "turnstone/shared_static/katex-0.16.42/**/*",
+  "turnstone/shared_static/katex-0.16.43/**/*",
   "turnstone/shared_static/hljs-11.11.1/**/*",
   "turnstone/shared_static/mermaid-11.13.0/**/*",
   "turnstone/sdk/py.typed",
@@ -169,6 +170,10 @@ ignore_missing_imports = true
 module = ["ddgs", "ddgs.*"]
 ignore_missing_imports = true
 
+[[tool.mypy.overrides]]
+module = ["lacme", "lacme.*"]
+ignore_missing_imports = true
+
 [[tool.mypy.overrides]]
 module = ["turnstone.channels.discord.*"]
 disallow_subclassing_any = false

sdk/typescript/package-lock.json

@@ -72,9 +72,9 @@
       }
     },
     "node_modules/@oxc-project/types": {
-      "version": "0.120.0",
-      "resolved": "https://registry.npmjs.org/@oxc-project/types/-/types-0.120.0.tgz",
-      "integrity": "sha512-k1YNu55DuvAip/MGE1FTsIuU3FUCn6v/ujG9V7Nq5Df/kX2CWb13hhwD0lmJGMGqE+bE1MXvv9SZVnMzEXlWcg==",
+      "version": "0.122.0",
+      "resolved": "https://registry.npmjs.org/@oxc-project/types/-/types-0.122.0.tgz",
+      "integrity": "sha512-oLAl5kBpV4w69UtFZ9xqcmTi+GENWOcPF7FCrczTiBbmC0ibXxCwyvZGbO39rCVEuLGAZM84DH0pUIyyv/YJzA==",
       "dev": true,
       "license": "MIT",
       "funding": {
@@ -82,9 +82,9 @@
       }
     },
     "node_modules/@rolldown/binding-android-arm64": {
-      "version": "1.0.0-rc.10",
-      "resolved": "https://registry.npmjs.org/@rolldown/binding-android-arm64/-/binding-android-arm64-1.0.0-rc.10.tgz",
-      "integrity": "sha512-jOHxwXhxmFKuXztiu1ORieJeTbx5vrTkcOkkkn2d35726+iwhrY1w/+nYY/AGgF12thg33qC3R1LMBF5tHTZHg==",
+      "version": "1.0.0-rc.12",
+      "resolved": "https://registry.npmjs.org/@rolldown/binding-android-arm64/-/binding-android-arm64-1.0.0-rc.12.tgz",
+      "integrity": "sha512-pv1y2Fv0JybcykuiiD3qBOBdz6RteYojRFY1d+b95WVuzx211CRh+ytI/+9iVyWQ6koTh5dawe4S/yRfOFjgaA==",
       "cpu": [
         "arm64"
       ],
@@ -99,9 +99,9 @@
       }
     },
     "node_modules/@rolldown/binding-darwin-arm64": {
-      "version": "1.0.0-rc.10",
-      "resolved": "https://registry.npmjs.org/@rolldown/binding-darwin-arm64/-/binding-darwin-arm64-1.0.0-rc.10.tgz",
-      "integrity": "sha512-gED05Teg/vtTZbIJBc4VNMAxAFDUPkuO/rAIyyxZjTj1a1/s6z5TII/5yMGZ0uLRCifEtwUQn8OlYzuYc0m70w==",
+      "version": "1.0.0-rc.12",
+      "resolved": "https://registry.npmjs.org/@rolldown/binding-darwin-arm64/-/binding-darwin-arm64-1.0.0-rc.12.tgz",
+      "integrity": "sha512-cFYr6zTG/3PXXF3pUO+umXxt1wkRK/0AYT8lDwuqvRC+LuKYWSAQAQZjCWDQpAH172ZV6ieYrNnFzVVcnSflAg==",
       "cpu": [
         "arm64"
       ],
@@ -116,9 +116,9 @@
       }
     },
     "node_modules/@rolldown/binding-darwin-x64": {
-      "version": "1.0.0-rc.10",
-      "resolved": "https://registry.npmjs.org/@rolldown/binding-darwin-x64/-/binding-darwin-x64-1.0.0-rc.10.tgz",
-      "integrity": "sha512-rI15NcM1mA48lqrIxVkHfAqcyFLcQwyXWThy+BQ5+mkKKPvSO26ir+ZDp36AgYoYVkqvMcdS8zOE6SeBsR9e8A==",
+      "version": "1.0.0-rc.12",
+      "resolved": "https://registry.npmjs.org/@rolldown/binding-darwin-x64/-/binding-darwin-x64-1.0.0-rc.12.tgz",
+      "integrity": "sha512-ZCsYknnHzeXYps0lGBz8JrF37GpE9bFVefrlmDrAQhOEi4IOIlcoU1+FwHEtyXGx2VkYAvhu7dyBf75EJQffBw==",
       "cpu": [
         "x64"
       ],
@@ -133,9 +133,9 @@
       }
     },
     "node_modules/@rolldown/binding-freebsd-x64": {
-      "version": "1.0.0-rc.10",
-      "resolved": "https://registry.npmjs.org/@rolldown/binding-freebsd-x64/-/binding-freebsd-x64-1.0.0-rc.10.tgz",
-      "integrity": "sha512-XZRXHdTa+4ME1MuDVp021+doQ+z6Ei4CCFmNc5/sKbqb8YmkiJdj8QKlV3rCI0AJtAeSB5n0WGPuJWNL9p/L2w==",
+      "version": "1.0.0-rc.12",
+      "resolved": "https://registry.npmjs.org/@rolldown/binding-freebsd-x64/-/binding-freebsd-x64-1.0.0-rc.12.tgz",
+      "integrity": "sha512-dMLeprcVsyJsKolRXyoTH3NL6qtsT0Y2xeuEA8WQJquWFXkEC4bcu1rLZZSnZRMtAqwtrF/Ib9Ddtpa/Gkge9Q==",
       "cpu": [
         "x64"
       ],
@@ -150,9 +150,9 @@
       }
     },
     "node_modules/@rolldown/binding-linux-arm-gnueabihf": {
-      "version": "1.0.0-rc.10",
-      "resolved": "https://registry.npmjs.org/@rolldown/binding-linux-arm-gnueabihf/-/binding-linux-arm-gnueabihf-1.0.0-rc.10.tgz",
-      "integrity": "sha512-R0SQMRluISSLzFE20sPWYHVmJdDQnRyc/FzSCN72BqQmh2SOZUFG+N3/vBZpR4C6WpEUVYJLrYUXaj43sJsNLA==",
+      "version": "1.0.0-rc.12",
+      "resolved": "https://registry.npmjs.org/@rolldown/binding-linux-arm-gnueabihf/-/binding-linux-arm-gnueabihf-1.0.0-rc.12.tgz",
+      "integrity": "sha512-YqWjAgGC/9M1lz3GR1r1rP79nMgo3mQiiA+Hfo+pvKFK1fAJ1bCi0ZQVh8noOqNacuY1qIcfyVfP6HoyBRZ85Q==",
       "cpu": [
         "arm"
       ],
@@ -167,13 +167,16 @@
       }
     },
     "node_modules/@rolldown/binding-linux-arm64-gnu": {
-      "version": "1.0.0-rc.10",
-      "resolved": "https://registry.npmjs.org/@rolldown/binding-linux-arm64-gnu/-/binding-linux-arm64-gnu-1.0.0-rc.10.tgz",
-      "integrity": "sha512-Y1reMrV/o+cwpduYhJuOE3OMKx32RMYCidf14y+HssARRmhDuWXJ4yVguDg2R/8SyyGNo+auzz64LnPK9Hq6jg==",
+      "version": "1.0.0-rc.12",
+      "resolved": "https://registry.npmjs.org/@rolldown/binding-linux-arm64-gnu/-/binding-linux-arm64-gnu-1.0.0-rc.12.tgz",
+      "integrity": "sha512-/I5AS4cIroLpslsmzXfwbe5OmWvSsrFuEw3mwvbQ1kDxJ822hFHIx+vsN/TAzNVyepI/j/GSzrtCIwQPeKCLIg==",
       "cpu": [
         "arm64"
       ],
       "dev": true,
+      "libc": [
+        "glibc"
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-        "@rolldown/binding-win32-x64-msvc": "1.0.0-rc.10"
+        "@rolldown/binding-android-arm64": "1.0.0-rc.12",
+        "@rolldown/binding-darwin-arm64": "1.0.0-rc.12",
+        "@rolldown/binding-darwin-x64": "1.0.0-rc.12",
+        "@rolldown/binding-freebsd-x64": "1.0.0-rc.12",
+        "@rolldown/binding-linux-arm-gnueabihf": "1.0.0-rc.12",
+        "@rolldown/binding-linux-arm64-gnu": "1.0.0-rc.12",
+        "@rolldown/binding-linux-arm64-musl": "1.0.0-rc.12",
+        "@rolldown/binding-linux-ppc64-gnu": "1.0.0-rc.12",
+        "@rolldown/binding-linux-s390x-gnu": "1.0.0-rc.12",
+        "@rolldown/binding-linux-x64-gnu": "1.0.0-rc.12",
+        "@rolldown/binding-linux-x64-musl": "1.0.0-rc.12",
+        "@rolldown/binding-openharmony-arm64": "1.0.0-rc.12",
+        "@rolldown/binding-wasm32-wasi": "1.0.0-rc.12",
+        "@rolldown/binding-win32-arm64-msvc": "1.0.0-rc.12",
+        "@rolldown/binding-win32-x64-msvc": "1.0.0-rc.12"
       }
     },
     "node_modules/siginfo": {
@@ -1085,16 +1115,16 @@
       }
     },
     "node_modules/vite": {
-      "version": "8.0.1",
-      "resolved": "https://registry.npmjs.org/vite/-/vite-8.0.1.tgz",
-      "integrity": "sha512-wt+Z2qIhfFt85uiyRt5LPU4oVEJBXj8hZNWKeqFG4gRG/0RaRGJ7njQCwzFVjO+v4+Ipmf5CY7VdmZRAYYBPHw==",
+      "version": "8.0.3",
+      "resolved": "https://registry.npmjs.org/vite/-/vite-8.0.3.tgz",
+      "integrity": "sha512-B9ifbFudT1TFhfltfaIPgjo9Z3mDynBTJSUYxTjOQruf/zHH+ezCQKcoqO+h7a9Pw9Nm/OtlXAiGT1axBgwqrQ==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
         "lightningcss": "^1.32.0",
-        "picomatch": "^4.0.3",
+        "picomatch": "^4.0.4",
         "postcss": "^8.5.8",
-        "rolldown": "1.0.0-rc.10",
+        "rolldown": "1.0.0-rc.12",
         "tinyglobby": "^0.2.15"
       },
       "bin": {
@@ -1163,19 +1193,19 @@
       }
     },
     "node_modules/vitest": {
-      "version": "4.1.1",
-      "resolved": "https://registry.npmjs.org/vitest/-/vitest-4.1.1.tgz",
-      "integrity": "sha512-yF+o4POL41rpAzj5KVILUxm1GCjKnELvaqmU9TLLUbMfDzuN0UpUR9uaDs+mCtjPe+uYPksXDRLQGGPvj1cTmA==",
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/vitest/-/vitest-4.1.2.tgz",
+      "integrity": "sha512-xjR1dMTVHlFLh98JE3i/f/WePqJsah4A0FK9cc8Ehp9Udk0AZk6ccpIZhh1qJ/yxVWRZ+Q54ocnD8TXmkhspGg==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@vitest/expect": "4.1.1",
-        "@vitest/mocker": "4.1.1",
-        "@vitest/pretty-format": "4.1.1",
-        "@vitest/runner": "4.1.1",
-        "@vitest/snapshot": "4.1.1",
-        "@vitest/spy": "4.1.1",
-        "@vitest/utils": "4.1.1",
+        "@vitest/expect": "4.1.2",
+        "@vitest/mocker": "4.1.2",
+        "@vitest/pretty-format": "4.1.2",
+        "@vitest/runner": "4.1.2",
+        "@vitest/snapshot": "4.1.2",
+        "@vitest/spy": "4.1.2",
+        "@vitest/utils": "4.1.2",
         "es-module-lexer": "^2.0.0",
         "expect-type": "^1.3.0",
         "magic-string": "^0.30.21",
@@ -1186,7 +1216,7 @@
         "tinybench": "^2.9.0",
         "tinyexec": "^1.0.2",
         "tinyglobby": "^0.2.15",
-        "tinyrainbow": "^3.0.3",
+        "tinyrainbow": "^3.1.0",
         "vite": "^6.0.0 || ^7.0.0 || ^8.0.0",
         "why-is-node-running": "^2.3.0"
       },
@@ -1203,10 +1233,10 @@
         "@edge-runtime/vm": "*",
         "@opentelemetry/api": "^1.9.0",
         "@types/node": "^20.0.0 || ^22.0.0 || >=24.0.0",
-        "@vitest/browser-playwright": "4.1.1",
-        "@vitest/browser-preview": "4.1.1",
-        "@vitest/browser-webdriverio": "4.1.1",
-        "@vitest/ui": "4.1.1",
+        "@vitest/browser-playwright": "4.1.2",
+        "@vitest/browser-preview": "4.1.2",
+        "@vitest/browser-webdriverio": "4.1.2",
+        "@vitest/ui": "4.1.2",
         "happy-dom": "*",
         "jsdom": "*",
         "vite": "^6.0.0 || ^7.0.0 || ^8.0.0"

sdk/typescript/src/base.ts

@@ -1,6 +1,15 @@
 import { TurnstoneAPIError } from "./errors.js";
 import { parseSSEStream } from "./sse.js";
 
+export interface TlsOptions {
+  /** Path to CA certificate PEM file (Node.js only). */
+  caCert?: string;
+  /** Path to client certificate PEM file for mTLS (Node.js only). */
+  clientCert?: string;
+  /** Path to client key PEM file for mTLS (Node.js only). */
+  clientKey?: string;
+}
+
 export interface ClientOptions {
   /** Server base URL (e.g. "http://localhost:8080"). */
   baseUrl: string;
@@ -8,6 +17,13 @@ export interface ClientOptions {
   token?: string;
   /** Custom fetch implementation (defaults to globalThis.fetch). */
   fetch?: typeof globalThis.fetch;
+  /**
+   * TLS certificate paths for documentation and tooling.
+   * The SDK does not read these directly — pass a custom `fetch`
+   * configured with your runtime's TLS agent (e.g. Node.js https.Agent).
+   * See docs/tls.md for examples.
+   */
+  tls?: TlsOptions;
 }
 
 export interface RequestOptions {

sdk/typescript/src/index.ts

@@ -19,7 +19,7 @@
 // Clients
 export { TurnstoneServer } from "./server.js";
 export { TurnstoneConsole } from "./console.js";
-export type { ClientOptions } from "./base.js";
+export type { ClientOptions, TlsOptions } from "./base.js";
 
 // Errors
 export { TurnstoneAPIError } from "./errors.js";

tests/test_judge.py

@@ -4,6 +4,7 @@ from __future__ import annotations
 
 import json
 import time
+from concurrent.futures import ThreadPoolExecutor
 from pathlib import Path
 from typing import Any
 from unittest.mock import MagicMock
@@ -179,10 +180,13 @@ class TestErrorHandling:
         provider = _make_mock_provider(side_effect=RuntimeError("API error"))
         judge = _make_judge(provider)
 
-        result = judge._evaluate_single(
-            _make_item(),
-            [{"role": "user", "content": "test"}],
-        )
+        with ThreadPoolExecutor(max_workers=1) as pool:
+            result = judge._evaluate_single(
+                _make_item(),
+                [{"role": "user", "content": "test"}],
+                cancel_event=None,
+                executor=pool,
+            )
         assert result is None
 
     def test_provider_error_heuristic_still_returned(self):
@@ -211,10 +215,13 @@ class TestErrorHandling:
         result_mock.content = ""
 
         judge = _make_judge(provider)
-        result = judge._evaluate_single(
-            _make_item(),
-            [{"role": "user", "content": "test"}],
-        )
+        with ThreadPoolExecutor(max_workers=1) as pool:
+            result = judge._evaluate_single(
+                _make_item(),
+                [{"role": "user", "content": "test"}],
+                cancel_event=None,
+                executor=pool,
+            )
         assert result is None
 
 
@@ -254,10 +261,13 @@ class TestMultiTurnToolUse:
         provider.create_completion.side_effect = [turn1, turn2]
 
         judge = _make_judge(provider)
-        verdict = judge._evaluate_single(
-            _make_item(),
-            [{"role": "user", "content": "test"}],
-        )
+        with ThreadPoolExecutor(max_workers=1) as pool:
+            verdict = judge._evaluate_single(
+                _make_item(),
+                [{"role": "user", "content": "test"}],
+                cancel_event=None,
+                executor=pool,
+            )
         assert verdict is not None
         assert verdict.tier == "llm"
         assert provider.create_completion.call_count == 2
@@ -299,10 +309,13 @@ class TestMultiTurnToolUse:
         ]
 
         judge = _make_judge(provider)
-        judge._evaluate_single(
-            _make_item(),
-            [{"role": "user", "content": "test"}],
-        )
+        with ThreadPoolExecutor(max_workers=1) as pool:
+            judge._evaluate_single(
+                _make_item(),
+                [{"role": "user", "content": "test"}],
+                cancel_event=None,
+                executor=pool,
+            )
         # Should have called create_completion exactly _JUDGE_MAX_TURNS times
         assert provider.create_completion.call_count == 5
 

tests/test_providers.py

@@ -140,6 +140,34 @@ class TestOpenAIProvider:
     def test_provider_name(self) -> None:
         assert self.provider.provider_name == "openai"
 
+    # -- _sanitize_messages ---------------------------------------------------
+
+    def test_sanitize_messages_none_content_no_tool_calls(self) -> None:
+        msgs = [{"role": "assistant", "content": None}]
+        assert self.provider._sanitize_messages(msgs) == [{"role": "assistant", "content": ""}]
+
+    def test_sanitize_messages_none_content_with_tool_calls(self) -> None:
+        msgs = [{"role": "assistant", "content": None, "tool_calls": [{"id": "1"}]}]
+        result = self.provider._sanitize_messages(msgs)
+        assert result[0]["content"] is None
+        assert result[0]["tool_calls"] == [{"id": "1"}]
+
+    def test_sanitize_messages_empty_string_passthrough(self) -> None:
+        msgs = [{"role": "assistant", "content": ""}]
+        assert self.provider._sanitize_messages(msgs) == msgs
+
+    def test_sanitize_messages_non_assistant_unchanged(self) -> None:
+        msgs = [{"role": "user", "content": None}]
+        result = self.provider._sanitize_messages(msgs)
+        assert result[0]["content"] is None
+
+    def test_sanitize_messages_does_not_mutate_original(self) -> None:
+        original = {"role": "assistant", "content": None}
+        self.provider._sanitize_messages([original])
+        assert original["content"] is None
+
+    # -- convert_tools --------------------------------------------------------
+
     def test_convert_tools_passthrough(self) -> None:
         tools = [
             {

tests/test_tls_admin.py

@@ -0,0 +1,234 @@
+"""Tests for TLS admin API endpoints and CLI commands."""
+
+from __future__ import annotations
+
+import pytest
+
+from turnstone.core.storage import get_storage, init_storage, reset_storage
+
+lacme = pytest.importorskip("lacme")
+
+
+@pytest.fixture(autouse=True)
+def _storage(tmp_path):
+    """Initialize ephemeral SQLite storage for each test."""
+    reset_storage()
+    db = str(tmp_path / "test.db")
+    init_storage("sqlite", path=db)
+    yield
+    reset_storage()
+
+
+@pytest.fixture
+def tls_manager():
+    """Create an initialized TLSManager."""
+    import asyncio
+
+    from turnstone.console.tls import TLSManager
+
+    mgr = TLSManager(get_storage())
+    asyncio.run(mgr.init_ca())
+    # Issue a test cert
+    asyncio.run(mgr.issue_console_certs(["test.internal", "localhost"]))
+    return mgr
+
+
+# ── Admin API endpoints ───────────────────────────────────────────────────────
+
+
+def _make_app(tls_manager):
+    """Create a minimal Starlette app with TLS endpoints."""
+    from starlette.applications import Starlette
+    from starlette.middleware import Middleware
+    from starlette.middleware.base import BaseHTTPMiddleware
+    from starlette.routing import Route
+
+    from turnstone.console.server import (
+        tls_ca_cert,
+        tls_ca_status,
+        tls_delete_cert,
+        tls_list_certs,
+        tls_renew_cert,
+    )
+    from turnstone.core.auth import AuthResult
+
+    async def _grant_access(request, call_next):  # type: ignore[no-untyped-def]
+        request.state.auth_result = AuthResult(
+            user_id="",
+            scopes=frozenset({"approve"}),
+            token_source="config",
+        )
+        return await call_next(request)
+
+    app = Starlette(
+        routes=[
+            Route("/ca", tls_ca_status),
+            Route("/ca.pem", tls_ca_cert),
+            Route("/certs", tls_list_certs),
+            Route("/certs/{domain}/renew", tls_renew_cert, methods=["POST"]),
+            Route("/certs/{domain}", tls_delete_cert, methods=["DELETE"]),
+        ],
+        middleware=[Middleware(BaseHTTPMiddleware, dispatch=_grant_access)],
+    )
+    app.state.tls_manager = tls_manager
+    return app
+
+
+def test_list_certs(tls_manager):
+    from starlette.testclient import TestClient
+
+    client = TestClient(_make_app(tls_manager))
+    resp = client.get("/certs")
+    assert resp.status_code == 200
+    data = resp.json()
+    assert len(data["certs"]) >= 1
+    assert data["certs"][0]["domain"] == "test.internal"
+
+
+def test_renew_cert(tls_manager):
+    from starlette.testclient import TestClient
+
+    client = TestClient(_make_app(tls_manager))
+    resp = client.post("/certs/test.internal/renew")
+    assert resp.status_code == 200
+    data = resp.json()
+    assert data["domain"] == "test.internal"
+
+
+def test_renew_cert_not_found(tls_manager):
+    from starlette.testclient import TestClient
+
+    client = TestClient(_make_app(tls_manager))
+    resp = client.post("/certs/nonexistent.internal/renew")
+    assert resp.status_code == 404
+
+
+def test_delete_cert(tls_manager):
+    from starlette.testclient import TestClient
+
+    client = TestClient(_make_app(tls_manager))
+    resp = client.delete("/certs/test.internal")
+    assert resp.status_code == 200
+    assert resp.json()["deleted"] == "test.internal"
+    # Verify it's gone
+    resp = client.get("/certs")
+    domains = [c["domain"] for c in resp.json()["certs"]]
+    assert "test.internal" not in domains
+
+
+def test_delete_cert_not_found(tls_manager):
+    from starlette.testclient import TestClient
+
+    client = TestClient(_make_app(tls_manager))
+    resp = client.delete("/certs/nonexistent.internal")
+    assert resp.status_code == 404
+
+
+# ── CLI bootstrap ─────────────────────────────────────────────────────────────
+
+
+def test_cli_bootstrap(tmp_path):
+    """Test offline CA bootstrap."""
+    import argparse
+
+    from turnstone.admin import _cmd_tls_bootstrap
+
+    out = tmp_path / "certs"
+    args = argparse.Namespace(out=str(out), issue=["redis.internal", "pg.internal"])
+    _cmd_tls_bootstrap(args)
+
+    assert (out / "ca.pem").exists()
+    assert b"BEGIN CERTIFICATE" in (out / "ca.pem").read_bytes()
+    # Check certs were issued
+    assert (out / "certs" / "redis.internal").exists()
+    assert (out / "certs" / "pg.internal").exists()
+
+
+def test_cli_bootstrap_no_issue(tmp_path):
+    """Bootstrap with no --issue creates CA only."""
+    import argparse
+
+    from turnstone.admin import _cmd_tls_bootstrap
+
+    out = tmp_path / "certs"
+    args = argparse.Namespace(out=str(out), issue=[])
+    _cmd_tls_bootstrap(args)
+
+    assert (out / "ca.pem").exists()
+    # No certs dir
+    certs_dir = out / "certs"
+    if certs_dir.exists():
+        assert len(list(certs_dir.iterdir())) == 0
+
+
+# ── Config parsing ────────────────────────────────────────────────────────────
+
+
+def test_redis_tls_config_map():
+    """Redis TLS keys are in the config map."""
+    from turnstone.core.config import _CONFIG_MAP
+
+    redis_map = _CONFIG_MAP["redis"]
+    assert "tls" in redis_map
+    assert "tls_ca" in redis_map
+    assert "tls_cert" in redis_map
+    assert "tls_key" in redis_map
+
+
+def test_database_ssl_config_map():
+    """Database SSL keys are in the config map."""
+    from turnstone.core.config import _CONFIG_MAP
+
+    db_map = _CONFIG_MAP["database"]
+    assert "sslmode" in db_map
+    assert "sslrootcert" in db_map
+    assert "sslcert" in db_map
+    assert "sslkey" in db_map
+
+
+# ── Auth enforcement ──────────────────────────────────────────────────────────
+
+
+def test_tls_endpoints_require_auth(tls_manager):
+    """TLS admin endpoints return 401 without auth."""
+    from starlette.applications import Starlette
+    from starlette.routing import Route
+    from starlette.testclient import TestClient
+
+    from turnstone.console.server import tls_ca_status, tls_list_certs
+
+    # No auth middleware — request.state.auth_result will be missing
+    app = Starlette(
+        routes=[
+            Route("/ca", tls_ca_status),
+            Route("/certs", tls_list_certs),
+        ]
+    )
+    app.state.tls_manager = tls_manager
+
+    client = TestClient(app)
+    resp = client.get("/ca")
+    assert resp.status_code == 401
+
+    resp = client.get("/certs")
+    assert resp.status_code == 401
+
+
+# ── SDK TLS params ────────────────────────────────────────────────────────────
+
+
+def test_sdk_client_cert_requires_both():
+    """SDK raises ValueError if only one of client_cert/client_key provided."""
+    from turnstone.sdk._base import _BaseClient
+
+    with pytest.raises(ValueError, match="Both client_cert and client_key"):
+        _BaseClient(
+            base_url="http://localhost:8080",
+            client_cert="/path/to/cert.pem",
+        )
+
+    with pytest.raises(ValueError, match="Both client_cert and client_key"):
+        _BaseClient(
+            base_url="http://localhost:8080",
+            client_key="/path/to/key.pem",
+        )

tests/test_tls_client.py

@@ -0,0 +1,98 @@
+"""Tests for TLSClient — service node certificate provisioning."""
+
+from __future__ import annotations
+
+from unittest.mock import MagicMock
+
+import pytest
+
+from turnstone.core.storage import get_storage, init_storage, reset_storage
+
+lacme = pytest.importorskip("lacme")
+
+
+@pytest.fixture(autouse=True)
+def _storage(tmp_path):
+    """Initialize ephemeral SQLite storage for each test."""
+    reset_storage()
+    db = str(tmp_path / "test.db")
+    init_storage("sqlite", path=db)
+    yield
+    reset_storage()
+
+
+# ── Console URL discovery ─────────────────────────────────────────────────────
+
+
+def test_discover_console_url():
+    """TLSClient discovers console URL from services table."""
+    from turnstone.core.tls import TLSClient
+
+    storage = get_storage()
+    storage.register_service("console", "console", "http://console:8080")
+
+    client = TLSClient(storage=storage, hostnames=["node-1"])
+    url = client._discover_console_url()
+    assert url == "http://console:8080"
+
+
+def test_discover_console_url_missing():
+    """TLSClient raises if no console registered."""
+    from turnstone.core.tls import TLSClient
+
+    client = TLSClient(storage=get_storage(), hostnames=["node-1"])
+    with pytest.raises(RuntimeError, match="No console service found"):
+        client._discover_console_url()
+
+
+def test_explicit_console_url_skips_discovery():
+    """When console_url is provided, discovery is skipped."""
+    from turnstone.core.tls import TLSClient
+
+    client = TLSClient(
+        storage=get_storage(),
+        console_url="http://explicit:9090",
+        hostnames=["node-1"],
+    )
+    assert client._console_url == "http://explicit:9090"
+
+
+# ── SSL context construction ─────────────────────────────────────────────────
+
+
+@pytest.mark.anyio
+async def test_ssl_contexts_none_before_init():
+    """SSL contexts are None before init()."""
+    from turnstone.core.tls import TLSClient
+
+    client = TLSClient(
+        storage=get_storage(),
+        console_url="http://localhost:8080",
+        hostnames=["node-1"],
+    )
+    assert client.get_server_ssl_context() is None
+    assert client.get_client_ssl_context() is None
+    assert not client.initialized
+
+
+# ── Backward compatibility ───────────────────────────────────────────────────
+
+
+def test_bridge_tls_defaults():
+    """Bridge with default TLS params works without changes."""
+    from turnstone.mq.bridge import Bridge
+
+    # Default: tls_verify=True, tls_cert=None — no mTLS
+    bridge = Bridge(server_url="http://localhost:8080")
+    assert bridge._tls_verify is True
+    assert bridge._tls_cert is None
+
+
+def test_collector_tls_defaults():
+    """Collector with default TLS params works without changes."""
+    from turnstone.console.collector import ClusterCollector
+
+    broker_mock = MagicMock()
+    collector = ClusterCollector(broker=broker_mock)
+    # Should create httpx client without errors
+    assert collector._http_client is not None

tests/test_tls_manager.py

@@ -0,0 +1,226 @@
+"""Tests for TLSManager — console CA and ACME server."""
+
+from __future__ import annotations
+
+import pytest
+
+from turnstone.core.storage import get_storage, init_storage, reset_storage
+
+lacme = pytest.importorskip("lacme")
+
+
+@pytest.fixture(autouse=True)
+def _storage(tmp_path):
+    """Initialize ephemeral SQLite storage for each test."""
+    reset_storage()
+    db = str(tmp_path / "test.db")
+    init_storage("sqlite", path=db)
+    yield
+    reset_storage()
+
+
+@pytest.fixture
+def tls_manager():
+    """Create a TLSManager backed by test storage."""
+    from turnstone.console.tls import TLSManager
+
+    return TLSManager(get_storage())
+
+
+# ── CA initialization ─────────────────────────────────────────────────────────
+
+
+@pytest.mark.anyio
+async def test_init_ca(tls_manager):
+    await tls_manager.init_ca()
+    assert tls_manager.ca_initialized
+    root_pem = tls_manager.get_root_cert_pem()
+    assert b"BEGIN CERTIFICATE" in root_pem
+
+
+@pytest.mark.anyio
+async def test_init_ca_persists(tls_manager):
+    """CA root survives re-initialization (loaded from storage)."""
+    await tls_manager.init_ca()
+    pem1 = tls_manager.get_root_cert_pem()
+
+    # Create a new manager on the same storage
+    from turnstone.console.tls import TLSManager
+
+    mgr2 = TLSManager(get_storage())
+    await mgr2.init_ca()
+    pem2 = mgr2.get_root_cert_pem()
+
+    assert pem1 == pem2  # Same CA loaded from DB
+
+
+@pytest.mark.anyio
+async def test_get_responder_before_init(tls_manager):
+    with pytest.raises(RuntimeError, match="CA not initialized"):
+        tls_manager.get_responder()
+
+
+@pytest.mark.anyio
+async def test_get_responder(tls_manager):
+    await tls_manager.init_ca()
+    responder = tls_manager.get_responder()
+    assert responder is not None
+    # Should be an ASGI app (callable)
+    assert callable(responder)
+
+
+# ── Cert issuance ─────────────────────────────────────────────────────────────
+
+
+@pytest.mark.anyio
+async def test_issue_console_certs_internal(tls_manager):
+    """Console certs issued from internal CA when no external directory."""
+    await tls_manager.init_ca()
+    await tls_manager.issue_console_certs(["console.internal", "localhost"])
+    assert tls_manager.internal_bundle is not None
+    assert tls_manager.frontend_bundle is not None
+    assert tls_manager.internal_bundle.domain == "console.internal"
+    assert b"BEGIN CERTIFICATE" in tls_manager.internal_bundle.cert_pem
+
+
+@pytest.mark.anyio
+async def test_issue_console_certs_persists(tls_manager):
+    """Certs loaded from storage on re-issue."""
+    await tls_manager.init_ca()
+    await tls_manager.issue_console_certs(["console.internal"])
+    bundle1 = tls_manager.internal_bundle
+
+    # New manager, same storage
+    from turnstone.console.tls import TLSManager
+
+    mgr2 = TLSManager(get_storage())
+    await mgr2.init_ca()
+    await mgr2.issue_console_certs(["console.internal"])
+    bundle2 = mgr2.internal_bundle
+
+    assert bundle1.cert_pem == bundle2.cert_pem
+
+
+# ── SSL contexts ──────────────────────────────────────────────────────────────
+
+
+@pytest.mark.anyio
+async def test_ssl_contexts_none_before_certs(tls_manager):
+    await tls_manager.init_ca()
+    assert tls_manager.get_server_ssl_context() is None
+    assert tls_manager.get_client_ssl_context() is None
+
+
+@pytest.mark.anyio
+async def test_ssl_contexts_after_certs(tls_manager):
+    await tls_manager.init_ca()
+    await tls_manager.issue_console_certs(["console.internal"])
+    server_ctx = tls_manager.get_server_ssl_context()
+    client_ctx = tls_manager.get_client_ssl_context()
+    assert server_ctx is not None
+    assert client_ctx is not None
+    import ssl
+
+    assert isinstance(server_ctx, ssl.SSLContext)
+    assert isinstance(client_ctx, ssl.SSLContext)
+
+
+# ── Root cert endpoint ────────────────────────────────────────────────────────
+
+
+@pytest.mark.anyio
+async def test_tls_ca_cert_endpoint(tls_manager):
+    """Test the CA cert download endpoint via test client."""
+    await tls_manager.init_ca()
+
+    from starlette.applications import Starlette
+    from starlette.middleware import Middleware
+    from starlette.routing import Route
+    from starlette.testclient import TestClient
+
+    from turnstone.console.server import tls_ca_cert, tls_ca_status
+
+    # Middleware that grants full access (config-token style: no user_id)
+    from turnstone.core.auth import AuthResult
+
+    async def _grant_access(request, call_next):  # type: ignore[no-untyped-def]
+        request.state.auth_result = AuthResult(
+            user_id="", scopes=frozenset({"approve"}), token_source="config"
+        )
+        return await call_next(request)
+
+    from starlette.middleware.base import BaseHTTPMiddleware
+
+    app = Starlette(
+        routes=[
+            Route("/ca.pem", tls_ca_cert),
+            Route("/ca", tls_ca_status),
+        ],
+        middleware=[Middleware(BaseHTTPMiddleware, dispatch=_grant_access)],
+    )
+    app.state.tls_manager = tls_manager
+
+    client = TestClient(app)
+
+    # CA cert download
+    resp = client.get("/ca.pem")
+    assert resp.status_code == 200
+    assert b"BEGIN CERTIFICATE" in resp.content
+    assert resp.headers["content-type"] == "application/x-pem-file"
+
+    # CA status
+    resp = client.get("/ca")
+    assert resp.status_code == 200
+    data = resp.json()
+    assert data["enabled"] is True
+    assert data["ca_cn"] == "Turnstone CA"
+
+
+@pytest.mark.anyio
+async def test_tls_endpoints_disabled():
+    """Endpoints return 404/disabled when TLS not enabled."""
+    from starlette.applications import Starlette
+    from starlette.middleware import Middleware
+    from starlette.middleware.base import BaseHTTPMiddleware
+    from starlette.routing import Route
+    from starlette.testclient import TestClient
+
+    from turnstone.console.server import tls_ca_cert, tls_ca_status
+    from turnstone.core.auth import AuthResult
+
+    async def _grant_access(request, call_next):  # type: ignore[no-untyped-def]
+        request.state.auth_result = AuthResult(
+            user_id="", scopes=frozenset({"approve"}), token_source="config"
+        )
+        return await call_next(request)
+
+    app = Starlette(
+        routes=[
+            Route("/ca.pem", tls_ca_cert),
+            Route("/ca", tls_ca_status),
+        ],
+        middleware=[Middleware(BaseHTTPMiddleware, dispatch=_grant_access)],
+    )
+    # No tls_manager on state
+
+    client = TestClient(app)
+
+    resp = client.get("/ca.pem")
+    assert resp.status_code == 404
+
+    resp = client.get("/ca")
+    data = resp.json()
+    assert data["enabled"] is False
+
+
+# ── Events ────────────────────────────────────────────────────────────────────
+
+
+@pytest.mark.anyio
+async def test_event_dispatcher_wired(tls_manager):
+    """Verify the event dispatcher has subscribers."""
+    assert tls_manager._event_dispatcher is not None
+    # Should have at least 4 subscriptions (issued, renewed, expiring, failed)
+    # The exact check depends on lacme's EventDispatcher internals,
+    # so just verify the dispatcher exists and the manager initializes cleanly
+    await tls_manager.init_ca()

tests/test_tls_storage.py

@@ -0,0 +1,226 @@
+"""Tests for TLS storage backend and lacme Store adapter."""
+
+from __future__ import annotations
+
+import json
+from datetime import UTC, datetime
+
+import pytest
+
+from turnstone.core.storage import get_storage, init_storage, reset_storage
+
+
+@pytest.fixture(autouse=True)
+def _storage(tmp_path):
+    """Initialize ephemeral SQLite storage for each test."""
+    reset_storage()
+    db = str(tmp_path / "test.db")
+    init_storage("sqlite", path=db)
+    yield
+    reset_storage()
+
+
+# ── Account keys ──────────────────────────────────────────────────────────────
+
+
+def test_save_and_load_account_key():
+    s = get_storage()
+    s.save_tls_account_key(
+        "default",
+        "-----BEGIN EC PRIVATE KEY-----\nfake\n-----END EC PRIVATE KEY-----",
+    )
+    result = s.load_tls_account_key("default")
+    assert result is not None
+    assert "EC PRIVATE KEY" in result
+
+
+def test_load_account_key_missing():
+    s = get_storage()
+    assert s.load_tls_account_key("nonexistent") is None
+
+
+def test_save_account_key_upsert():
+    s = get_storage()
+    s.save_tls_account_key("default", "key-v1")
+    s.save_tls_account_key("default", "key-v2")
+    assert s.load_tls_account_key("default") == "key-v2"
+
+
+# ── CA ────────────────────────────────────────────────────────────────────────
+
+
+def test_save_and_load_ca():
+    s = get_storage()
+    s.save_tls_ca("Turnstone CA", "cert-pem-data", "key-pem-data")
+    result = s.load_tls_ca("Turnstone CA")
+    assert result is not None
+    assert result["cert_pem"] == "cert-pem-data"
+    assert result["key_pem"] == "key-pem-data"
+    assert result["name"] == "Turnstone CA"
+
+
+def test_load_ca_missing():
+    s = get_storage()
+    assert s.load_tls_ca("nonexistent") is None
+
+
+def test_save_ca_upsert():
+    s = get_storage()
+    s.save_tls_ca("CA", "cert-v1", "key-v1")
+    s.save_tls_ca("CA", "cert-v2", "key-v2")
+    result = s.load_tls_ca("CA")
+    assert result["cert_pem"] == "cert-v2"
+    assert result["key_pem"] == "key-v2"
+
+
+# ── Certificates ──────────────────────────────────────────────────────────────
+
+
+def test_save_and_load_cert():
+    s = get_storage()
+    s.save_tls_cert(
+        domain="node-1.internal",
+        cert_pem="cert-data",
+        fullchain_pem="fullchain-data",
+        key_pem="key-data",
+        issued_at="2026-03-25T00:00:00",
+        expires_at="2026-03-27T00:00:00",
+        meta=json.dumps({"domains": ["node-1.internal", "10.0.1.5"]}),
+    )
+    result = s.load_tls_cert("node-1.internal")
+    assert result is not None
+    assert result["domain"] == "node-1.internal"
+    assert result["cert_pem"] == "cert-data"
+    assert result["fullchain_pem"] == "fullchain-data"
+    assert result["key_pem"] == "key-data"
+    assert result["issued_at"] == "2026-03-25T00:00:00"
+    assert result["expires_at"] == "2026-03-27T00:00:00"
+    meta = json.loads(result["meta"])
+    assert meta["domains"] == ["node-1.internal", "10.0.1.5"]
+
+
+def test_load_cert_missing():
+    s = get_storage()
+    assert s.load_tls_cert("nonexistent") is None
+
+
+def test_save_cert_upsert():
+    s = get_storage()
+    s.save_tls_cert("d", "c1", "f1", "k1", "2026-01-01", "2026-01-02")
+    s.save_tls_cert("d", "c2", "f2", "k2", "2026-02-01", "2026-02-02")
+    result = s.load_tls_cert("d")
+    assert result["cert_pem"] == "c2"
+    assert result["issued_at"] == "2026-02-01"
+
+
+def test_list_certs_empty():
+    s = get_storage()
+    assert s.list_tls_certs() == []
+
+
+def test_list_certs():
+    s = get_storage()
+    s.save_tls_cert("alpha.internal", "c", "f", "k", "2026-01-01", "2026-01-02")
+    s.save_tls_cert("beta.internal", "c", "f", "k", "2026-01-01", "2026-01-02")
+    certs = s.list_tls_certs()
+    assert len(certs) == 2
+    assert certs[0]["domain"] == "alpha.internal"  # sorted by domain
+    assert certs[1]["domain"] == "beta.internal"
+
+
+def test_delete_cert():
+    s = get_storage()
+    s.save_tls_cert("d", "c", "f", "k", "2026-01-01", "2026-01-02")
+    assert s.delete_tls_cert("d") is True
+    assert s.load_tls_cert("d") is None
+
+
+def test_delete_cert_missing():
+    s = get_storage()
+    assert s.delete_tls_cert("nonexistent") is False
+
+
+# ── StorageStore adapter ──────────────────────────────────────────────────────
+
+
+@pytest.fixture
+def store_adapter():
+    """Create a StorageStore backed by the test database."""
+    from turnstone.core.tls_store import StorageStore
+
+    return StorageStore(get_storage())
+
+
+def test_adapter_save_load_ca(store_adapter):
+    store_adapter.save_ca("test-ca", b"cert-pem", b"key-pem")
+    result = store_adapter.load_ca("test-ca")
+    assert result is not None
+    cert_pem, key_pem = result
+    assert cert_pem == b"cert-pem"
+    assert key_pem == b"key-pem"
+
+
+def test_adapter_load_ca_missing(store_adapter):
+    assert store_adapter.load_ca("missing") is None
+
+
+def test_adapter_save_load_cert(store_adapter):
+    lacme = pytest.importorskip("lacme")
+    now = datetime.now(UTC)
+    bundle = lacme.CertBundle(
+        domain="test.internal",
+        domains=("test.internal", "10.0.1.1"),
+        cert_pem=b"cert",
+        fullchain_pem=b"fullchain",
+        key_pem=b"key",
+        issued_at=now,
+        expires_at=now,
+    )
+    store_adapter.save_cert(bundle)
+    loaded = store_adapter.load_cert("test.internal")
+    assert loaded is not None
+    assert loaded.domain == "test.internal"
+    assert loaded.domains == ("test.internal", "10.0.1.1")
+    assert loaded.cert_pem == b"cert"
+    assert loaded.fullchain_pem == b"fullchain"
+    assert loaded.key_pem == b"key"
+
+
+def test_adapter_list_certs(store_adapter):
+    lacme = pytest.importorskip("lacme")
+    now = datetime.now(UTC)
+    for name in ["alpha", "beta"]:
+        bundle = lacme.CertBundle(
+            domain=f"{name}.internal",
+            domains=(f"{name}.internal",),
+            cert_pem=b"c",
+            fullchain_pem=b"f",
+            key_pem=b"k",
+            issued_at=now,
+            expires_at=now,
+        )
+        store_adapter.save_cert(bundle)
+    certs = store_adapter.list_certs()
+    assert len(certs) == 2
+    assert certs[0].domain == "alpha.internal"
+
+
+def test_adapter_load_cert_missing(store_adapter):
+    assert store_adapter.load_cert("missing") is None
+
+
+def test_adapter_account_key_roundtrip(store_adapter):
+    """Test account key save/load with real cryptography objects."""
+    pytest.importorskip("lacme")
+    from cryptography.hazmat.primitives.asymmetric import ec
+
+    key = ec.generate_private_key(ec.SECP256R1())
+    store_adapter.save_account_key(key)
+    loaded = store_adapter.load_account_key()
+    assert loaded is not None
+    # Verify it's a usable EC key
+    assert loaded.key_size == key.key_size
+
+
+def test_adapter_account_key_missing(store_adapter):
+    assert store_adapter.load_account_key() is None

turnstone.example.toml

@@ -0,0 +1,124 @@
+# turnstone.toml — shared bootstrap configuration
+#
+# This file is read once at startup. Values here are overridden by
+# environment variables, which are in turn overridden by CLI flags.
+#
+# All sections are optional. Missing sections use binary defaults.
+# Config file location precedence:
+#   1. --config flag
+#   2. $TURNSTONE_CONFIG env var
+#   3. ~/.config/turnstone/config.toml
+
+# --- LLM API (turnstone, node, eval) ---
+
+[api]
+# base_url = ""                # API endpoint; empty = binary default
+# api_key = ""                 # env: OPENAI_API_KEY or ANTHROPIC_API_KEY
+
+# --- Default Model (turnstone, node, eval) ---
+
+[model]
+# name = ""                    # Model ID; empty = provider default (gpt-5 / claude-sonnet-4)
+# temperature = 0.0            # 0 = provider default
+# reasoning_effort = ""        # "low", "medium", "high", "max"
+# context_window = 0           # 0 = auto-detect from provider capabilities
+# max_tokens = 0               # 0 = provider default
+
+# --- Named Models (turnstone, node, eval) ---
+# Define model aliases with per-model overrides. Useful for local model
+# servers or mixing providers. Reference by name with --model flag.
+#
+# [models.local]
+# name = "llama-3-70b"
+# provider = "openai"
+# base_url = "http://localhost:8000/v1"
+# context_window = 8192
+#
+# [models.local.capabilities]
+# supports_vision = false
+# supports_web_search = false
+#
+# [models.claude]
+# name = "claude-opus-4-6"
+# provider = "anthropic"
+
+# --- Database (turnstone, node, console) ---
+
+[database]
+# url = ""                     # postgres://user:pass@host/db or /path/to.db
+                               # env: TURNSTONE_DB_URL
+# SSL params (passed through to SQLAlchemy connection):
+# sslmode = "prefer"           # disable, allow, prefer, require, verify-ca, verify-full
+# sslrootcert = ""             # path to CA cert for verify-ca/verify-full
+# sslcert = ""                 # path to client cert (mTLS)
+# sslkey = ""                  # path to client key (mTLS)
+
+# --- Redis (bridge, console, channel) ---
+
+[redis]
+# url = ""                     # redis://host:6379/0 or rediss://host:6380/0
+                               # env: TURNSTONE_REDIS_URL
+# TLS params (passed through to Redis connection):
+# tls = false                  # enable TLS (also auto-enabled by rediss:// scheme)
+# tls_ca = ""                  # path to CA cert
+# tls_cert = ""                # path to client cert (mTLS)
+# tls_key = ""                 # path to client key (mTLS)
+
+# --- Auth (node, console) ---
+
+[auth]
+# enabled = true               # env: TURNSTONE_AUTH_ENABLED
+# jwt_secret = ""              # HS256 signing secret (min 32 bytes recommended)
+                               # env: TURNSTONE_JWT_SECRET
+# token = ""                   # Static config token for full access
+                               # env: TURNSTONE_AUTH_TOKEN
+
+# --- Logging (turnstone, node, console) ---
+
+[log]
+# level = ""                   # "debug", "info", "warn", "error"
+                               # empty = binary default (warn for CLI, info for servers)
+                               # env: TURNSTONE_LOG_LEVEL
+# json = false                 # JSON output; auto-enabled when stderr is not a TTY
+
+# --- Session (turnstone, node) ---
+
+[session]
+# instructions = ""            # Default system message
+# compact_max_tokens = 32768   # Max tokens for context compaction summary
+# auto_compact_pct = 0.8       # Trigger compaction at this % of context window
+
+# --- Tools (turnstone, node) ---
+
+[tools]
+# timeout = 120                # Tool execution timeout in seconds
+# skip_permissions = false     # Auto-approve all tool calls
+
+# --- Judge (turnstone, node) ---
+
+[judge]
+# enabled = true               # Enable intent validation
+# confidence_threshold = 0.7   # Minimum confidence for heuristic verdicts
+# output_guard = true          # Scan tool output for security signals
+# redact_secrets = true        # Redact detected credentials in output
+
+# --- Memory (turnstone, node) ---
+
+[memory]
+# relevance_k = 5              # Top-K memories for context injection
+# fetch_limit = 50             # Max memories to fetch for ranking
+# max_content = 32768          # Max memory content size in chars
+# nudge_cooldown = 300         # Min seconds between metacognitive nudges
+# nudges = true                # Enable memory nudges
+
+# --- MCP (turnstone, node) ---
+
+[mcp]
+# config_path = ""             # Path to MCP servers config file (JSON)
+# refresh_interval = 14400     # Refresh interval in seconds (default: 4h)
+
+# --- Server (node, console) ---
+
+[server]
+# max_workstreams = 50         # Maximum concurrent workstreams per node
+                               # env: TURNSTONE_MAX_WORKSTREAMS

turnstone/__init__.py

@@ -1,3 +1,3 @@
 """turnstone - Multi-node AI orchestration platform with tool use, agent routing, and cluster simulation."""
 
-__version__ = "0.8.8"
+__version__ = "0.9.0"

turnstone/admin.py

@@ -142,6 +142,189 @@ def _cmd_revoke_token(args: argparse.Namespace) -> None:
         sys.exit(1)
 
 
+# ---------------------------------------------------------------------------
+# TLS commands
+# ---------------------------------------------------------------------------
+
+
+def _cmd_tls_bootstrap(args: argparse.Namespace) -> None:
+    """Initialize CA and issue certs offline."""
+    try:
+        from lacme import CertificateAuthority, FileStore
+    except ImportError:
+        print("lacme not installed. Run: pip install turnstone[tls]", file=sys.stderr)
+        sys.exit(1)
+
+    import contextlib
+    import os
+    from pathlib import Path
+
+    out_dir = Path(args.out)
+    out_dir.mkdir(parents=True, exist_ok=True)
+    with contextlib.suppress(PermissionError):
+        os.chmod(out_dir, 0o700)  # Restrict access — contains CA private key
+
+    store = FileStore(str(out_dir))
+    ca = CertificateAuthority(store, name="turnstone")
+    ca.init(cn="Turnstone CA", validity_days=3650)
+    print(f"CA initialized in {out_dir} (permissions: 0700)")
+
+    # Write CA cert to a well-known location
+    ca_cert_path = out_dir / "ca.pem"
+    ca_cert_path.write_bytes(ca.root_cert_pem)
+    with contextlib.suppress(PermissionError):
+        os.chmod(ca_cert_path, 0o644)
+    print(f"CA cert: {ca_cert_path}")
+
+    # Issue certs for requested domains
+    for domain in args.issue:
+        bundle = ca.issue([domain], validity_hours=48)
+        store.save_cert(bundle)
+        cert_dir = out_dir / "certs" / domain
+        print(f"Issued: {domain} -> {cert_dir}")
+
+    print(f"\nBootstrap complete. {len(args.issue)} cert(s) issued.")
+    print(f"CA and certs written to: {out_dir}")
+
+
+def _cmd_tls_issue(args: argparse.Namespace) -> None:
+    """Request a cert from the console's ACME endpoint."""
+    try:
+        from lacme import SyncClient
+    except ImportError:
+        print("lacme not installed. Run: pip install turnstone[tls]", file=sys.stderr)
+        sys.exit(1)
+
+    import os
+    from pathlib import Path
+
+    console_url = args.console_url
+    if not console_url:
+        console_url = _discover_console_url()
+
+    domains = [args.domain] + args.san
+    directory_url = f"{console_url}/acme/directory"
+    print(f"Requesting cert for {domains} from {directory_url}")
+
+    client = SyncClient(
+        directory_url=directory_url,
+        allow_insecure=True,
+    )
+    bundle = client.issue(domains)
+
+    out_dir = Path(args.out)
+    out_dir.mkdir(parents=True, exist_ok=True)
+    (out_dir / "cert.pem").write_bytes(bundle.cert_pem)
+    (out_dir / "fullchain.pem").write_bytes(bundle.fullchain_pem)
+    (out_dir / "key.pem").write_bytes(bundle.key_pem)
+    os.chmod(out_dir / "key.pem", 0o600)
+
+    print(f"Certificate written to {out_dir}/")
+    print("  cert.pem      (leaf certificate)")
+    print("  fullchain.pem (cert + chain)")
+    print("  key.pem       (private key, 0600)")
+
+
+def _cmd_tls_ca_cert(args: argparse.Namespace) -> None:
+    """Download the CA root certificate from the console."""
+    import httpx
+
+    console_url = args.console_url
+    if not console_url:
+        console_url = _discover_console_url()
+
+    # Use plain HTTP for bootstrap (node may not have CA cert yet)
+    # WARNING: This is trust-on-first-use (TOFU) — verify the fingerprint
+    base = console_url.replace("https://", "http://")
+    url = f"{base}/acme/ca.pem"
+    print(f"Fetching CA cert from {url}")
+    print("WARNING: Fetching over plain HTTP — verify the fingerprint below")
+
+    resp = httpx.get(url)
+    resp.raise_for_status()
+
+    # Show fingerprint for out-of-band verification
+    import hashlib
+
+    fingerprint = hashlib.sha256(resp.content).hexdigest()
+    print(f"CA cert SHA-256: {fingerprint}")
+
+    from pathlib import Path
+
+    Path(args.out).write_bytes(resp.content)
+    print(f"CA cert written to {args.out}")
+
+
+def _cmd_tls_list(args: argparse.Namespace) -> None:
+    """List certificates from the console."""
+    import httpx
+
+    console_url = args.console_url
+    if not console_url:
+        console_url = _discover_console_url()
+
+    url = f"{console_url}/v1/api/admin/tls/certs"
+    headers = {}
+    token = getattr(args, "auth_token", "") or _get_config_token()
+    if token:
+        headers["Authorization"] = f"Bearer {token}"
+    resp = httpx.get(url, headers=headers)
+    resp.raise_for_status()
+    data = resp.json()
+
+    certs = data.get("certs", [])
+    if not certs:
+        print("No certificates issued.")
+        return
+
+    print(f"{'DOMAIN':<30s} {'ISSUED':<22s} {'EXPIRES':<22s}")
+    print("-" * 74)
+    for c in certs:
+        print(f"{c['domain']:<30s} {c['issued_at']:<22s} {c['expires_at']:<22s}")
+
+
+def _get_config_token() -> str:
+    """Try to load auth token from config.toml or environment."""
+    token = os.environ.get("TURNSTONE_AUTH_TOKEN", "")
+    if token:
+        return token
+    try:
+        from turnstone.core.config import load_config
+
+        cfg = load_config("auth")
+        return str(cfg.get("token", ""))
+    except Exception:
+        return ""
+
+
+def _discover_console_url() -> str:
+    """Discover console URL from the services table."""
+    from turnstone.core.storage import get_storage
+
+    try:
+        storage = get_storage()
+    except Exception:
+        print(
+            "No storage configured. Use --console-url or run from a "
+            "directory with a turnstone database.",
+            file=sys.stderr,
+        )
+        sys.exit(1)
+    consoles = storage.list_services("console", max_age_seconds=3600)
+    if not consoles:
+        print(
+            "No console found in services table. Use --console-url explicitly.",
+            file=sys.stderr,
+        )
+        sys.exit(1)
+    return consoles[0]["url"]
+
+
+# ---------------------------------------------------------------------------
+# Entry point
+# ---------------------------------------------------------------------------
+
+
 def main() -> None:
     """Entry point for turnstone-admin CLI."""
     parser = argparse.ArgumentParser(
@@ -171,6 +354,35 @@ def main() -> None:
     p_rt = sub.add_parser("revoke-token", help="Revoke an API token")
     p_rt.add_argument("--token-id", required=True, help="Token ID to revoke")
 
+    # TLS subcommands
+    p_bootstrap = sub.add_parser(
+        "tls-bootstrap",
+        help="Initialize CA and issue certs offline (no running console needed)",
+    )
+    p_bootstrap.add_argument("--out", required=True, help="Output directory for PEM files")
+    p_bootstrap.add_argument(
+        "--issue",
+        action="append",
+        default=[],
+        help="Domain to issue cert for (repeatable)",
+    )
+
+    p_issue = sub.add_parser("tls-issue", help="Request cert from console ACME")
+    p_issue.add_argument("domain", help="Primary domain for the certificate")
+    p_issue.add_argument("--san", action="append", default=[], help="Additional SAN (repeatable)")
+    p_issue.add_argument("--out", default=".", help="Output directory for PEM files")
+    p_issue.add_argument(
+        "--console-url", default="", help="Console URL (discovered from DB if empty)"
+    )
+
+    p_cacert = sub.add_parser("tls-ca-cert", help="Download CA root certificate")
+    p_cacert.add_argument("--out", default="ca.pem", help="Output file path")
+    p_cacert.add_argument("--console-url", default="", help="Console URL")
+
+    p_tlslist = sub.add_parser("tls-list", help="List issued certificates")
+    p_tlslist.add_argument("--console-url", default="", help="Console URL")
+    p_tlslist.add_argument("--auth-token", default="", help="Auth token for admin API")
+
     args = parser.parse_args()
     if not args.command:
         parser.print_help()
@@ -182,5 +394,9 @@ def main() -> None:
         "list-users": _cmd_list_users,
         "list-tokens": _cmd_list_tokens,
         "revoke-token": _cmd_revoke_token,
+        "tls-bootstrap": _cmd_tls_bootstrap,
+        "tls-issue": _cmd_tls_issue,
+        "tls-ca-cert": _cmd_tls_ca_cert,
+        "tls-list": _cmd_tls_list,
     }
     dispatch[args.command](args)

turnstone/api/console_spec.py

@@ -843,6 +843,39 @@ CONSOLE_ENDPOINTS: list[EndpointSpec] = [
         error_codes=[400],
         tags=["Admin"],
     ),
+    # --- Admin: TLS / ACME ---
+    EndpointSpec(
+        "/v1/api/admin/tls/ca",
+        "GET",
+        "CA status: initialization state, CN, cert count, cert inventory",
+        tags=["Admin"],
+    ),
+    EndpointSpec(
+        "/v1/api/admin/tls/ca.pem",
+        "GET",
+        "Download CA root certificate (PEM format)",
+        tags=["Admin"],
+    ),
+    EndpointSpec(
+        "/v1/api/admin/tls/certs",
+        "GET",
+        "List all issued TLS certificates",
+        tags=["Admin"],
+    ),
+    EndpointSpec(
+        "/v1/api/admin/tls/certs/{domain}/renew",
+        "POST",
+        "Force-renew a certificate by domain",
+        error_codes=[404, 500],
+        tags=["Admin"],
+    ),
+    EndpointSpec(
+        "/v1/api/admin/tls/certs/{domain}",
+        "DELETE",
+        "Delete a certificate by domain",
+        error_codes=[404],
+        tags=["Admin"],
+    ),
     # --- Observability ---
     EndpointSpec(
         "/health",

turnstone/channels/cli.py

@@ -58,6 +58,11 @@ def main() -> None:
         help="HTTP server port (default: $TURNSTONE_CHANNEL_PORT or 8091)",
     )
 
+    # -- TLS -----------------------------------------------------------------
+    parser.add_argument("--ssl-certfile", default=None, help="SSL certificate file for HTTPS")
+    parser.add_argument("--ssl-keyfile", default=None, help="SSL private key file")
+    parser.add_argument("--ssl-ca-certs", default=None, help="SSL CA certs for client verification")
+
     # -- Auth ----------------------------------------------------------------
     parser.add_argument(
         "--auth-token",
@@ -189,7 +194,8 @@ def main() -> None:
                     advertise_host = socket.gethostname()
                 else:
                     advertise_host = args.http_host
-                advertise_url = f"http://{advertise_host}:{args.http_port}"
+                scheme = "https" if args.ssl_certfile else "http"
+                advertise_url = f"{scheme}://{advertise_host}:{args.http_port}"
             service_url = advertise_url
 
             # Register in service registry
@@ -209,11 +215,25 @@ def main() -> None:
                     except Exception:
                         log.exception("channel.heartbeat_failed")
 
+            # TLS: use cert files if available (from bootstrap or TLSClient)
+            ssl_certfile = getattr(args, "ssl_certfile", None)
+            ssl_keyfile = getattr(args, "ssl_keyfile", None)
+            ssl_ca_certs = getattr(args, "ssl_ca_certs", None)
+            if bool(ssl_certfile) != bool(ssl_keyfile):
+                print(
+                    "Both --ssl-certfile and --ssl-keyfile are required for TLS",
+                    file=sys.stderr,
+                )
+                sys.exit(1)
+
             uv_config = uvicorn.Config(
                 channel_app,
                 host=args.http_host,
                 port=args.http_port,
                 log_level="warning",
+                ssl_certfile=ssl_certfile,
+                ssl_keyfile=ssl_keyfile,
+                ssl_ca_certs=ssl_ca_certs,
             )
             server = uvicorn.Server(uv_config)
 

turnstone/console/collector.py

@@ -60,6 +60,8 @@ class ClusterCollector:
         http_timeout: float = 30.0,
         auth_token: str = "",
         token_manager: ServiceTokenManager | None = None,
+        tls_verify: Any = True,
+        tls_cert: tuple[str, str] | None = None,
     ):
         self._broker = broker
         self._prefix = prefix
@@ -86,12 +88,33 @@ class ClusterCollector:
                 max_connections=max_poll_workers + 10,
                 max_keepalive_connections=min(max_poll_workers, 200),
             ),
+            verify=tls_verify,
+            cert=tls_cert,
         )
 
         # SSE fan-out to browser clients
         self._listeners: list[queue.Queue[dict[str, Any]]] = []
         self._listeners_lock = threading.Lock()
 
+    def upgrade_tls(self, tls_verify: Any = True, tls_cert: tuple[str, str] | None = None) -> None:
+        """Replace the httpx client with one using mTLS context."""
+        old = self._http_client
+        self._http_client = httpx.Client(
+            timeout=httpx.Timeout(
+                connect=10, read=self._http_timeout, write=5, pool=self._http_timeout
+            ),
+            limits=httpx.Limits(
+                max_connections=self._max_poll_workers + 10,
+                max_keepalive_connections=min(self._max_poll_workers, 200),
+            ),
+            verify=tls_verify,
+            cert=tls_cert,
+        )
+        # Don't close old client — concurrent _fetch_node() threads may still
+        # be using it.  It will be GC'd once all references are released, and
+        # the current client is closed in stop().
+        del old
+
     # -- lifecycle -----------------------------------------------------------
 
     def start(self) -> None:

turnstone/console/server.py

@@ -727,18 +727,25 @@ async def _lifespan(app: Starlette) -> AsyncGenerator[None, None]:
         config_store.get("cluster.node_fan_out_limit") if config_store else _NODE_FAN_OUT_LIMIT
     )
     app.state.fan_out_limit = fan_out
+    # Build mTLS context for proxy clients if TLS is enabled
+    _tls_mgr = getattr(app.state, "tls_manager", None)
+    _proxy_ssl = _tls_mgr.get_client_ssl_context() if _tls_mgr and _tls_mgr.ca_initialized else None
+    _proxy_verify: Any = _proxy_ssl if _proxy_ssl else True
+
     app.state.proxy_client = httpx.AsyncClient(
         timeout=30,
         limits=httpx.Limits(
             max_connections=fan_out + 50,
             max_keepalive_connections=min(fan_out // 4, 100),
         ),
+        verify=_proxy_verify,
     )
     app.state.proxy_sse_client = httpx.AsyncClient(
         timeout=httpx.Timeout(connect=5, read=30, write=5, pool=5),
         limits=httpx.Limits(
             max_connections=1100, max_keepalive_connections=100, keepalive_expiry=30
         ),
+        verify=_proxy_verify,
     )
     # Start scheduler if configured
     scheduler = getattr(app.state, "scheduler", None)
@@ -769,8 +776,84 @@ async def _lifespan(app: Starlette) -> AsyncGenerator[None, None]:
                     "OIDC JWKS prefetch failed — will retry on first login",
                     exc_info=True,
                 )
+    # Register console in service registry so other services can discover it
+    console_url = getattr(app.state, "console_url", "")
+    _console_heartbeat_task: Any = None
+    if console_url and storage:
+        try:
+            storage.register_service("console", "console", console_url)
+
+            # Periodic heartbeat to keep the registration alive
+            import asyncio
+
+            async def _console_heartbeat() -> None:
+                while True:
+                    await asyncio.sleep(30)
+                    try:
+                        storage.heartbeat_service("console", "console")
+                    except Exception:
+                        log.warning("console.heartbeat_failed", exc_info=True)
+
+            _console_heartbeat_task = asyncio.create_task(_console_heartbeat())
+        except Exception:
+            log.warning("Failed to register console service", exc_info=True)
+
+    # TLS: init CA, issue console certs, start renewal
+    tls_mgr = getattr(app.state, "tls_manager", None)
+    if tls_mgr is not None:
+        import socket
+
+        try:
+            if not tls_mgr.ca_initialized:
+                await tls_mgr.init_ca()
+            hostname = socket.getfqdn()
+            cert_hostnames = [hostname, "localhost", "127.0.0.1"]
+            extra_sans = os.environ.get("TURNSTONE_TLS_SANS", "")
+            if extra_sans:
+                cert_hostnames.extend(s.strip() for s in extra_sans.split(",") if s.strip())
+            await tls_mgr.issue_console_certs(cert_hostnames)
+            await tls_mgr.start_renewal()
+            # Re-create proxy clients with mTLS context now that certs are ready
+            client_ctx = tls_mgr.get_client_ssl_context()
+            if client_ctx:
+                await app.state.proxy_client.aclose()
+                await app.state.proxy_sse_client.aclose()
+                app.state.proxy_client = httpx.AsyncClient(
+                    timeout=30,
+                    limits=httpx.Limits(
+                        max_connections=app.state.fan_out_limit + 50,
+                        max_keepalive_connections=min(app.state.fan_out_limit // 4, 100),
+                    ),
+                    verify=client_ctx,
+                )
+                app.state.proxy_sse_client = httpx.AsyncClient(
+                    timeout=httpx.Timeout(connect=5, read=30, write=5, pool=5),
+                    limits=httpx.Limits(
+                        max_connections=1100,
+                        max_keepalive_connections=100,
+                        keepalive_expiry=30,
+                    ),
+                    verify=client_ctx,
+                )
+                # Upgrade collector httpx client for mTLS node polling
+                app.state.collector.upgrade_tls(tls_verify=client_ctx)
+                log.info("tls.proxy_clients.upgraded")
+        except Exception:
+            log.warning("TLS initialization failed — continuing without TLS", exc_info=True)
+
     yield
     # Shutdown
+    if _console_heartbeat_task is not None:
+        _console_heartbeat_task.cancel()
+    # Deregister console from services table
+    if console_url and storage:
+        try:
+            storage.deregister_service("console", "console")
+        except Exception:
+            log.debug("console.deregister_failed", exc_info=True)
+    tls_mgr = getattr(app.state, "tls_manager", None)
+    if tls_mgr is not None:
+        await tls_mgr.stop_renewal()
     if scheduler is not None:
         scheduler.stop()
     await app.state.proxy_sse_client.aclose()
@@ -4580,6 +4663,161 @@ async def admin_import_mcp_config(request: Request) -> JSONResponse:
     return JSONResponse({"imported": imported, "skipped": skipped, "errors": errors})
 
 
+# ---------------------------------------------------------------------------
+# TLS endpoints
+# ---------------------------------------------------------------------------
+
+
+async def tls_ca_cert(request: Request) -> Response:
+    """GET /v1/api/admin/tls/ca.pem — Download CA root certificate."""
+    from turnstone.core.auth import require_permission
+
+    err = require_permission(request, "admin.settings")
+    if err:
+        return err
+    mgr = getattr(request.app.state, "tls_manager", None)
+    if mgr is None or not mgr.ca_initialized:
+        return JSONResponse({"error": "TLS not enabled"}, status_code=404)
+    return Response(
+        content=mgr.get_root_cert_pem(),
+        media_type="application/x-pem-file",
+        headers={"Content-Disposition": "attachment; filename=turnstone-ca.pem"},
+    )
+
+
+async def tls_ca_status(request: Request) -> JSONResponse:
+    """GET /v1/api/admin/tls/ca — CA status."""
+    from turnstone.core.auth import require_permission
+
+    err = require_permission(request, "admin.settings")
+    if err:
+        return err
+    mgr = getattr(request.app.state, "tls_manager", None)
+    if mgr is None or not mgr.ca_initialized:
+        return JSONResponse({"enabled": False})
+    from turnstone.console.tls import _CA_CN
+
+    certs = mgr.list_certs()
+    return JSONResponse(
+        {
+            "enabled": True,
+            "ca_cn": _CA_CN,
+            "cert_count": len(certs),
+            "certs": [
+                {
+                    "domain": c.domain,
+                    "issued_at": c.issued_at.isoformat(),
+                    "expires_at": c.expires_at.isoformat(),
+                }
+                for c in certs
+            ],
+        },
+    )
+
+
+async def tls_list_certs(request: Request) -> JSONResponse:
+    """GET /v1/api/admin/tls/certs — List issued certificates."""
+    from turnstone.core.auth import require_permission
+
+    err = require_permission(request, "admin.settings")
+    if err:
+        return err
+    mgr = getattr(request.app.state, "tls_manager", None)
+    if mgr is None or not mgr.ca_initialized:
+        return JSONResponse({"certs": []})
+    certs = mgr.list_certs()
+    return JSONResponse(
+        {
+            "certs": [
+                {
+                    "domain": c.domain,
+                    "domains": list(c.domains),
+                    "issued_at": c.issued_at.isoformat(),
+                    "expires_at": c.expires_at.isoformat(),
+                }
+                for c in certs
+            ],
+        },
+    )
+
+
+async def tls_renew_cert(request: Request) -> JSONResponse:
+    """POST /v1/api/admin/tls/certs/{domain}/renew — Force cert renewal."""
+    from turnstone.core.auth import require_permission
+
+    err = require_permission(request, "admin.settings")
+    if err:
+        return err
+    mgr = getattr(request.app.state, "tls_manager", None)
+    if mgr is None or not mgr.ca_initialized:
+        return JSONResponse({"error": "TLS not enabled"}, status_code=404)
+    domain = request.path_params["domain"]
+    try:
+        bundle = mgr.renew_cert(domain)
+        return JSONResponse(
+            {
+                "domain": bundle.domain,
+                "issued_at": bundle.issued_at.isoformat(),
+                "expires_at": bundle.expires_at.isoformat(),
+            },
+        )
+    except ValueError as e:
+        return JSONResponse({"error": str(e)}, status_code=404)
+    except Exception as e:
+        return JSONResponse({"error": str(e)}, status_code=500)
+
+
+async def tls_delete_cert(request: Request) -> JSONResponse:
+    """DELETE /v1/api/admin/tls/certs/{domain} — Delete a certificate."""
+    from turnstone.core.auth import require_permission
+
+    err = require_permission(request, "admin.settings")
+    if err:
+        return err
+    mgr = getattr(request.app.state, "tls_manager", None)
+    if mgr is None or not mgr.ca_initialized:
+        return JSONResponse({"error": "TLS not enabled"}, status_code=404)
+    domain = request.path_params["domain"]
+    if not mgr.delete_cert(domain):
+        return JSONResponse({"error": f"No cert for {domain}"}, status_code=404)
+    return JSONResponse({"deleted": domain})
+
+
+# ---------------------------------------------------------------------------
+# ConfigStore env seeding
+# ---------------------------------------------------------------------------
+
+
+def _seed_config_from_env(config_store: Any, storage: Any) -> None:
+    """Seed ConfigStore settings from environment variables.
+
+    Checks for ``TURNSTONE_{SECTION}_{KEY}`` env vars and writes them
+    to ConfigStore if they aren't already set. This allows container
+    deployments to configure settings before the admin UI is available.
+
+    Only seeds known settings from the registry to avoid storing garbage.
+    Uses config_store.set() for proper validation, serialization, and
+    cache invalidation.
+    """
+    from turnstone.core.settings_registry import SETTINGS
+
+    for key in SETTINGS:
+        env_name = "TURNSTONE_" + key.replace(".", "_").upper()
+        env_val = os.environ.get(env_name)
+        if env_val is None:
+            continue
+        # Only seed if not already stored (check raw storage to avoid
+        # config_store cache, which may not reflect DB state yet)
+        existing = storage.get_system_setting(key)
+        if existing is not None:
+            continue
+        try:
+            config_store.set(key, env_val, changed_by="env")
+            log.info("config.seeded_from_env: %s from %s", key, env_name)
+        except Exception:
+            log.warning("config.seed_failed: %s from %s", key, env_name, exc_info=True)
+
+
 # ---------------------------------------------------------------------------
 # App factory
 # ---------------------------------------------------------------------------
@@ -4595,6 +4833,8 @@ def create_app(
     proxy_auth_token: str = "",
     proxy_token_mgr: Any = None,
     cors_origins: list[str] | None = None,
+    tls_manager: Any = None,
+    console_url: str = "",
 ) -> Starlette:
     """Build the Starlette ASGI application for the console dashboard."""
     _spec = build_console_spec()
@@ -4817,6 +5057,20 @@ def create_app(
                         admin_rescan_skill,
                         methods=["POST"],
                     ),
+                    # TLS / ACME
+                    Route("/api/admin/tls/ca", tls_ca_status),
+                    Route("/api/admin/tls/ca.pem", tls_ca_cert),
+                    Route("/api/admin/tls/certs", tls_list_certs),
+                    Route(
+                        "/api/admin/tls/certs/{domain}/renew",
+                        tls_renew_cert,
+                        methods=["POST"],
+                    ),
+                    Route(
+                        "/api/admin/tls/certs/{domain}",
+                        tls_delete_cert,
+                        methods=["DELETE"],
+                    ),
                 ],
             ),
             Route("/health", health),
@@ -4842,6 +5096,15 @@ def create_app(
     app.state.auth_storage = auth_storage
     app.state.proxy_auth_token = proxy_auth_token
     app.state.proxy_token_mgr = proxy_token_mgr
+    app.state.console_url = console_url
+    app.state.tls_manager = tls_manager
+
+    # Mount ACME responder whenever a TLS manager is configured.
+    # ACMEResponder (lacme 1.0.2+) serves /ca.pem natively.
+    if tls_manager is not None:
+        from starlette.routing import Mount as RouteMount
+
+        app.routes.insert(0, RouteMount("/acme", app=tls_manager.get_responder()))
 
     from turnstone.core.auth import LoginRateLimiter
 
@@ -4989,7 +5252,15 @@ def main() -> None:
         db_backend = os.environ.get("TURNSTONE_DB_BACKEND", "sqlite")
         db_url = os.environ.get("TURNSTONE_DB_URL", "")
         db_path = os.environ.get("TURNSTONE_DB_PATH", "")
-        auth_storage = init_storage(db_backend, path=db_path, url=db_url)
+        auth_storage = init_storage(
+            db_backend,
+            path=db_path,
+            url=db_url,
+            sslmode=os.environ.get("TURNSTONE_DB_SSLMODE", ""),
+            sslrootcert=os.environ.get("TURNSTONE_DB_SSLROOTCERT", ""),
+            sslcert=os.environ.get("TURNSTONE_DB_SSLCERT", ""),
+            sslkey=os.environ.get("TURNSTONE_DB_SSLKEY", ""),
+        )
     except Exception:
         log.info("Console storage not available — admin API disabled, JWT-only auth")
 
@@ -5014,6 +5285,45 @@ def main() -> None:
 
     cors_origins = parse_cors_origins()
 
+    # TLS: initialize manager if enabled
+    tls_mgr = None
+    # Console URL for service registration — other services use this to discover the console.
+    # Precedence: TURNSTONE_CONSOLE_URL env > auto-detect from bind address.
+    # In Docker Compose, set TURNSTONE_CONSOLE_URL to the service name (e.g. http://console:8090).
+    import socket as _socket
+
+    _console_url_env = os.environ.get("TURNSTONE_CONSOLE_URL", "")
+    if _console_url_env:
+        console_url = _console_url_env
+    else:
+        _advertise_host = args.host
+        if _advertise_host in ("0.0.0.0", "::", ""):
+            _advertise_host = _socket.getfqdn()
+        console_url = f"http://{_advertise_host}:{args.port}"
+    if auth_storage:
+        try:
+            from turnstone.core.config_store import ConfigStore
+
+            _cs = ConfigStore(auth_storage)
+            # Seed ConfigStore from env vars (TURNSTONE_{SECTION}_{KEY})
+            _seed_config_from_env(_cs, auth_storage)
+            if _cs.get("tls.enabled"):
+                from turnstone.console.tls import TLSManager
+
+                tls_mgr = TLSManager(auth_storage, config_store=_cs)
+                # Init CA before create_app so ACME responder can be mounted
+                import asyncio
+
+                asyncio.run(tls_mgr.init_ca())
+                # Upgrade scheme to https if no explicit URL was provided
+                if not _console_url_env:
+                    console_url = console_url.replace("http://", "https://")
+                log.info("TLS enabled")
+        except ImportError:
+            log.warning("TLS enabled but lacme not installed — pip install turnstone[tls]")
+        except Exception:
+            log.warning("TLS initialization failed", exc_info=True)
+
     app = create_app(
         collector=collector,
         broker=broker,
@@ -5023,9 +5333,11 @@ def main() -> None:
         proxy_auth_token=proxy_token if proxy_token_mgr is None else "",
         proxy_token_mgr=proxy_token_mgr,
         cors_origins=cors_origins,
+        tls_manager=tls_mgr,
+        console_url=console_url,
     )
 
-    log.info("Console starting on http://%s:%s", args.host, args.port)
+    log.info("Console starting on %s", console_url)
     if auth_config.enabled:
         log.info("Auth: enabled (%d config token(s))", len(auth_config.tokens))
     print("Press Ctrl+C to stop.")

turnstone/console/static/admin.js

@@ -64,6 +64,7 @@ function showAdmin() {
     audit: "admin.audit",
     memories: "admin.memories",
     settings: "admin.settings",
+    tls: "admin.settings",
     mcp: "admin.mcp",
   };
   if (perms) {
@@ -193,6 +194,7 @@ function switchAdminTab(tab) {
     "audit",
     "memories",
     "settings",
+    "tls",
     "mcp",
   ];
   for (var p = 0; p < panels.length; p++) {
@@ -215,6 +217,7 @@ function switchAdminTab(tab) {
   }
   if (tab === "memories") loadAdminMemories();
   if (tab === "settings") loadSettings();
+  if (tab === "tls") loadTlsCerts();
   if (tab === "mcp") loadAdminMcp();
 
   // Update breadcrumb with active tab label
@@ -2083,6 +2086,180 @@ function _settingsSectionLabel(section) {
   return labels[section] || section;
 }
 
+// ---------------------------------------------------------------------------
+// TLS tab
+// ---------------------------------------------------------------------------
+
+function loadTlsCerts() {
+  var statusEl = document.getElementById("tls-ca-status");
+  var listEl = document.getElementById("tls-cert-list");
+  if (!statusEl || !listEl) return;
+
+  // Fetch CA status and cert list in parallel
+  Promise.all([
+    authFetch("/v1/api/admin/tls/ca").then(function (r) {
+      if (!r.ok) throw new Error("Failed");
+      return r.json();
+    }),
+    authFetch("/v1/api/admin/tls/certs").then(function (r) {
+      if (!r.ok) return { certs: [] };
+      return r.json();
+    }),
+  ])
+    .then(function (results) {
+      var data = results[0];
+      var certData = results[1];
+      while (statusEl.firstChild) statusEl.removeChild(statusEl.firstChild);
+      while (listEl.firstChild) listEl.removeChild(listEl.firstChild);
+
+      if (!data.enabled) {
+        var msg = document.createElement("div");
+        msg.className = "dashboard-empty";
+        msg.textContent =
+          "TLS is not enabled. Set tls.enabled = true in Settings.";
+        statusEl.appendChild(msg);
+        return;
+      }
+
+      // CA status bar
+      var bar = document.createElement("div");
+      bar.className = "tls-ca-bar";
+      var caLabel = document.createElement("span");
+      caLabel.textContent = "CA: " + data.ca_cn;
+      var countLabel = document.createElement("span");
+      countLabel.textContent = "Certificates: " + data.cert_count;
+      bar.appendChild(caLabel);
+      bar.appendChild(countLabel);
+      statusEl.appendChild(bar);
+
+      var certs = certData.certs || [];
+      if (certs.length === 0) {
+        var empty = document.createElement("div");
+        empty.className = "dashboard-empty";
+        empty.textContent = "No certificates issued yet.";
+        listEl.appendChild(empty);
+        return;
+      }
+
+      // Cert rows
+      certs.forEach(function (c) {
+        var row = document.createElement("div");
+        row.className = "admin-row";
+        row.setAttribute("role", "listitem");
+
+        var colDomain = document.createElement("span");
+        colDomain.className = "admin-col";
+        colDomain.textContent = c.domain;
+
+        var colSans = document.createElement("span");
+        colSans.className = "admin-col";
+        colSans.textContent = (c.domains || [c.domain]).join(", ");
+
+        var colIssued = document.createElement("span");
+        colIssued.className = "admin-col";
+        colIssued.textContent = (c.issued_at || "")
+          .slice(0, 16)
+          .replace("T", " ");
+
+        var colExpires = document.createElement("span");
+        colExpires.className = "admin-col";
+        var expires = new Date(c.expires_at);
+        var isExpired = expires < new Date();
+        colExpires.textContent =
+          (isExpired ? "EXPIRED " : "") +
+          (c.expires_at || "").slice(0, 16).replace("T", " ");
+        if (isExpired) colExpires.style.color = "var(--red)";
+
+        var colActions = document.createElement("span");
+        colActions.className = "admin-col admin-col-actions";
+        var renewBtn = document.createElement("button");
+        renewBtn.className = "admin-btn-action";
+        renewBtn.textContent = "Renew";
+        renewBtn.setAttribute(
+          "aria-label",
+          "Renew certificate for " + c.domain,
+        );
+        renewBtn.onclick = function () {
+          tlsRenewCert(c.domain);
+        };
+        var deleteBtn = document.createElement("button");
+        deleteBtn.className = "admin-btn-danger";
+        deleteBtn.textContent = "Delete";
+        deleteBtn.setAttribute(
+          "aria-label",
+          "Delete certificate for " + c.domain,
+        );
+        deleteBtn.onclick = function () {
+          tlsDeleteCert(c.domain);
+        };
+        colActions.appendChild(renewBtn);
+        colActions.appendChild(deleteBtn);
+
+        row.appendChild(colDomain);
+        row.appendChild(colSans);
+        row.appendChild(colIssued);
+        row.appendChild(colExpires);
+        row.appendChild(colActions);
+        listEl.appendChild(row);
+      });
+    })
+    .catch(function () {
+      while (statusEl.firstChild) statusEl.removeChild(statusEl.firstChild);
+      while (listEl.firstChild) listEl.removeChild(listEl.firstChild);
+      var errMsg = document.createElement("div");
+      errMsg.className = "dashboard-empty";
+      errMsg.textContent = "Failed to load TLS status";
+      statusEl.appendChild(errMsg);
+    });
+}
+
+function tlsRenewCert(domain) {
+  showConfirmModal(
+    "Renew Certificate",
+    "Force renew certificate for \u2018" + domain + "\u2019?",
+    "Renew",
+    function () {
+      authFetch(
+        "/v1/api/admin/tls/certs/" + encodeURIComponent(domain) + "/renew",
+        { method: "POST" },
+      )
+        .then(function (r) {
+          if (!r.ok) throw new Error("Renew failed");
+          showToast("Certificate renewed for " + domain);
+          loadTlsCerts();
+        })
+        .catch(function () {
+          showToast("Failed to renew certificate", "error");
+        });
+    },
+  );
+}
+
+function tlsDeleteCert(domain) {
+  showConfirmModal(
+    "Delete Certificate",
+    "Delete certificate for \u2018" + domain + "\u2019? This cannot be undone.",
+    "Delete",
+    function () {
+      authFetch("/v1/api/admin/tls/certs/" + encodeURIComponent(domain), {
+        method: "DELETE",
+      })
+        .then(function (r) {
+          if (!r.ok) throw new Error("Delete failed");
+          showToast("Certificate deleted for " + domain);
+          loadTlsCerts();
+        })
+        .catch(function () {
+          showToast("Failed to delete certificate", "error");
+        });
+    },
+  );
+}
+
+// ---------------------------------------------------------------------------
+// Settings tab
+// ---------------------------------------------------------------------------
+
 function loadSettings() {
   var el = document.getElementById("admin-settings-content");
   if (!el) return;

turnstone/console/static/index.html

@@ -110,6 +110,7 @@
         <div class="admin-sidebar-group" data-group="system" role="group" aria-label="System">
           <div class="admin-sidebar-group-label" aria-hidden="true">System</div>
           <button id="tab-settings" class="admin-nav" data-tab="settings" role="tab" aria-selected="false" aria-controls="admin-settings" tabindex="-1" onclick="switchAdminTab('settings')">Settings</button>
+          <button id="tab-tls" class="admin-nav" data-tab="tls" role="tab" aria-selected="false" aria-controls="admin-tls" tabindex="-1" onclick="switchAdminTab('tls')">TLS</button>
         </div>
       </nav>
       <div id="admin-sidebar-backdrop" class="admin-sidebar-backdrop" aria-hidden="true"></div>
@@ -404,6 +405,24 @@
       </div>
     </div>
 
+    <!-- TLS Tab -->
+    <div id="admin-tls" class="admin-panel" role="tabpanel" aria-labelledby="tab-tls" style="display:none">
+      <div class="admin-toolbar">
+        <span class="section-header" style="margin:0">TLS / CERTIFICATES</span>
+      </div>
+      <div id="tls-ca-status"></div>
+      <div class="admin-colheaders admin-colheaders-tls" aria-hidden="true">
+        <span class="admin-col">DOMAIN</span>
+        <span class="admin-col">SANS</span>
+        <span class="admin-col">ISSUED</span>
+        <span class="admin-col">EXPIRES</span>
+        <span class="admin-col admin-col-actions">ACTIONS</span>
+      </div>
+      <div id="tls-cert-list" role="list" aria-label="TLS certificates" aria-live="polite">
+        <div class="dashboard-empty">Loading&hellip;</div>
+      </div>
+    </div>
+
     <div id="admin-mcp" class="admin-panel" role="tabpanel" aria-labelledby="tab-mcp" style="display:none">
       <div class="admin-toolbar">
         <span class="section-header">MCP</span>

turnstone/console/static/style.css

@@ -948,6 +948,19 @@
   grid-template-columns: 100px 1fr 100px 80px;
 }
 
+/* TLS grid: DOMAIN | SANS | ISSUED | EXPIRES | ACTIONS */
+#admin-tls .admin-colheaders,
+#admin-tls .admin-row {
+  grid-template-columns: 160px 1fr 130px 150px 120px;
+}
+.tls-ca-bar {
+  display: flex;
+  gap: 2rem;
+  margin-bottom: 0.75rem;
+  font-size: 12px;
+  color: var(--fg-dim);
+}
+
 /* Scope badges */
 .scope-badge {
   display: inline-block;

turnstone/console/tls.py

@@ -0,0 +1,386 @@
+"""TLS Manager — Certificate Authority and ACME server for the console.
+
+Owns the lacme CertificateAuthority, ACMEResponder, and RenewalManager
+lifecycle. When TLS is enabled, the console acts as the cluster's internal
+CA and ACME server, issuing short-lived mTLS certificates to all services.
+"""
+
+from __future__ import annotations
+
+from typing import TYPE_CHECKING, Any
+
+import structlog
+
+if TYPE_CHECKING:
+    import ssl
+
+    from starlette.types import ASGIApp
+
+    from turnstone.core.config_store import ConfigStore
+    from turnstone.core.storage._protocol import StorageBackend
+
+log = structlog.get_logger(__name__)
+
+# Hardcoded defaults — no operator config needed
+_CA_CN = "Turnstone CA"
+_CA_NAME = "turnstone"  # Store key for save_ca/load_ca
+_CA_VALIDITY_DAYS = 3650  # 10 years
+_CERT_VALIDITY_HOURS = 48
+_RENEW_INTERVAL_HOURS = 24
+_RENEW_BEFORE_EXPIRY_DAYS = 1
+
+
+def _require_lacme() -> Any:
+    try:
+        import lacme
+    except ImportError:
+        raise ImportError(
+            "lacme is required for TLS support. Install with: pip install turnstone[tls]",
+        ) from None
+    return lacme
+
+
+class TLSManager:
+    """Manages the internal CA, ACME responder, and certificate lifecycle.
+
+    Typical usage::
+
+        mgr = TLSManager(storage, config_store)
+        await mgr.init_ca()
+        responder = mgr.get_responder()       # Mount at /acme
+        await mgr.issue_console_certs()        # Self-issue for this node
+        mgr.start_renewal()                    # Background auto-renewal
+    """
+
+    def __init__(
+        self,
+        storage: StorageBackend,
+        config_store: ConfigStore | None = None,
+    ) -> None:
+        lacme = _require_lacme()
+
+        from turnstone.core.tls_store import StorageStore
+
+        self._store = StorageStore(storage)
+        self._config_store = config_store
+        self._event_dispatcher = lacme.EventDispatcher()
+        self._ca: Any | None = None
+        self._responder: Any | None = None
+        self._renewal_task: Any | None = None
+        self._renewal_manager: Any | None = None
+        self._internal_bundle: Any | None = None
+        self._frontend_bundle: Any | None = None
+
+        # Wire structlog to lacme events
+        self._subscribe_events()
+
+        # Wire Prometheus metrics (if prometheus_client available)
+        try:
+            from lacme.metrics import setup_metrics
+
+            setup_metrics(self._event_dispatcher)
+        except ImportError:
+            pass  # prometheus_client not installed
+
+    def _subscribe_events(self) -> None:
+        """Subscribe structlog handlers to lacme lifecycle events."""
+        _require_lacme()
+        from lacme.events import (
+            CertificateExpiring,
+            CertificateIssued,
+            CertificateRenewed,
+            ChallengeFailed,
+        )
+
+        def _on_issued(event: Any) -> None:
+            if isinstance(event, CertificateIssued):
+                log.info("tls.cert.issued", domain=event.domain)
+
+        def _on_renewed(event: Any) -> None:
+            if isinstance(event, CertificateRenewed):
+                log.info("tls.cert.renewed", domain=event.domain)
+
+        def _on_expiring(event: Any) -> None:
+            if isinstance(event, CertificateExpiring):
+                log.warning("tls.cert.expiring", domain=event.domain)
+
+        def _on_failed(event: Any) -> None:
+            if isinstance(event, ChallengeFailed):
+                log.error("tls.challenge.failed", domain=getattr(event, "domain", "unknown"))
+
+        self._event_dispatcher.subscribe(_on_issued, event_type=CertificateIssued)
+        self._event_dispatcher.subscribe(_on_renewed, event_type=CertificateRenewed)
+        self._event_dispatcher.subscribe(_on_expiring, event_type=CertificateExpiring)
+        self._event_dispatcher.subscribe(_on_failed, event_type=ChallengeFailed)
+
+    # -- CA lifecycle ----------------------------------------------------------
+
+    async def init_ca(self) -> None:
+        """Initialize the internal Certificate Authority.
+
+        If a bootstrap CA exists on disk (from tls-bootstrap), imports it
+        into the database store first so the console uses the same CA that
+        signed the infrastructure certs.
+        """
+        lacme = _require_lacme()
+
+        # Import bootstrap CA from well-known volume path if not already in DB
+        self._import_bootstrap_ca()
+
+        self._ca = lacme.CertificateAuthority(
+            self._store,
+            name=_CA_NAME,
+            event_dispatcher=self._event_dispatcher,
+        )
+        self._ca.init(cn=_CA_CN, validity_days=_CA_VALIDITY_DAYS)
+        log.info("tls.ca.initialized", cn=_CA_CN)
+
+    def _import_bootstrap_ca(self) -> None:
+        """Import a bootstrap CA from /certs into the database store.
+
+        The tls-bootstrap CLI writes the CA to a FileStore at /certs.
+        On first boot, the console imports it so all services share
+        the same trust root.
+        """
+        import os
+        from pathlib import Path
+
+        # Check if bootstrap CA exists and DB CA doesn't
+        bootstrap_dir = Path(os.environ.get("TURNSTONE_TLS_BOOTSTRAP_DIR", "/certs"))
+        ca_dir = bootstrap_dir / "ca" / _CA_NAME
+        ca_cert_file = ca_dir / "cert.pem"
+        ca_key_file = ca_dir / "key.pem"
+
+        if not ca_cert_file.exists() or not ca_key_file.exists():
+            return  # No bootstrap CA found
+
+        existing = self._store.load_ca(_CA_NAME)
+        if existing is not None:
+            return  # Already imported
+
+        cert_pem = ca_cert_file.read_bytes()
+        key_pem = ca_key_file.read_bytes()
+        self._store.save_ca(_CA_NAME, cert_pem, key_pem)
+        log.info("tls.ca.imported_from_bootstrap", path=str(ca_dir))
+
+    def get_responder(self) -> ASGIApp:
+        """Return the ACME responder ASGI app for mounting."""
+        if self._ca is None:
+            raise RuntimeError("CA not initialized — call init_ca() first")
+        lacme = _require_lacme()
+        if self._responder is None:
+            self._responder = lacme.ACMEResponder(
+                ca=self._ca,
+                auto_approve=True,
+            )
+        return self._responder  # type: ignore[no-any-return]
+
+    def get_root_cert_pem(self) -> bytes:
+        """Return the CA root certificate in PEM format."""
+        if self._ca is None:
+            raise RuntimeError("CA not initialized — call init_ca() first")
+        return self._ca.root_cert_pem  # type: ignore[no-any-return]
+
+    # -- Cert issuance ---------------------------------------------------------
+
+    async def issue_console_certs(self, hostnames: list[str]) -> None:
+        """Issue certificates for the console node.
+
+        Raises ValueError if hostnames is empty.
+
+        Issues two certificates:
+        - Internal cert: always from the internal CA (for mTLS with cluster)
+        - Frontend cert: from external ACME CA if configured, else internal CA
+        """
+        if not hostnames:
+            raise ValueError("issue_console_certs requires at least one hostname")
+
+        # Internal cert — always from our own CA
+        await self._issue_internal_cert(hostnames)
+
+        # Frontend cert — external CA if configured
+        acme_directory = ""
+        if self._config_store:
+            acme_directory = self._config_store.get("tls.acme_directory") or ""
+
+        if acme_directory:
+            await self._issue_frontend_cert(hostnames, acme_directory)
+        else:
+            # Self-issue from internal CA (behind reverse proxy or internal only)
+            self._frontend_bundle = self._internal_bundle
+            log.info("tls.frontend.self_issued", hostnames=hostnames)
+
+    async def _issue_internal_cert(self, hostnames: list[str]) -> None:
+        """Issue an internal mTLS cert from the internal CA."""
+        if self._ca is None:
+            raise RuntimeError("CA not initialized")
+
+        # Check for existing cert in store (skip if expired)
+        existing = self._store.load_cert(hostnames[0])
+        if existing is not None:
+            from datetime import UTC, datetime
+
+            if existing.expires_at > datetime.now(UTC):
+                self._internal_bundle = existing
+                log.info("tls.internal.loaded", domain=hostnames[0])
+                return
+            log.info("tls.internal.expired", domain=hostnames[0])
+            self._store.delete_cert(hostnames[0])
+
+        # Issue new cert
+        bundle = self._ca.issue(
+            hostnames,
+            validity_hours=_CERT_VALIDITY_HOURS,
+        )
+        self._store.save_cert(bundle)
+        self._internal_bundle = bundle
+        log.info("tls.internal.issued", domain=hostnames[0])
+
+    async def _issue_frontend_cert(
+        self,
+        hostnames: list[str],
+        acme_directory: str,
+    ) -> None:
+        """Issue a frontend cert from an external ACME CA."""
+        lacme = _require_lacme()
+        from lacme.challenges.http01 import HTTP01Handler
+
+        handler = HTTP01Handler()
+
+        async with lacme.Client(
+            directory_url=acme_directory,
+            store=self._store,
+            challenge_handler=handler,
+            event_dispatcher=self._event_dispatcher,
+        ) as client:
+            self._frontend_bundle = await client.issue(hostnames)
+            self._store.save_cert(self._frontend_bundle)
+            log.info(
+                "tls.frontend.issued",
+                domain=hostnames[0],
+                ca=acme_directory,
+            )
+
+    # -- Auto-renewal ----------------------------------------------------------
+
+    async def start_renewal(self) -> None:
+        """Start background auto-renewal for all stored certificates.
+
+        Uses CA-direct mode (lacme 1.0.2+) — signs directly via the CA
+        without going through ACME. No loopback client, no network,
+        no startup ordering dependency.
+        """
+        if self._ca is None:
+            raise RuntimeError("CA not initialized")
+        lacme = _require_lacme()
+
+        def _on_renewed(bundle: Any) -> None:
+            # Update our cached bundles if the renewed domain matches
+            if self._internal_bundle and bundle.domain == self._internal_bundle.domain:
+                self._internal_bundle = bundle
+            if self._frontend_bundle and bundle.domain == self._frontend_bundle.domain:
+                self._frontend_bundle = bundle
+
+        self._renewal_manager = lacme.RenewalManager(
+            ca=self._ca,
+            store=self._store,
+            interval_hours=_RENEW_INTERVAL_HOURS,
+            days_before_expiry=_RENEW_BEFORE_EXPIRY_DAYS,
+            on_renewed=_on_renewed,
+            event_dispatcher=self._event_dispatcher,
+        )
+        self._renewal_task = self._renewal_manager.start()
+        log.info(
+            "tls.renewal.started",
+            interval_hours=_RENEW_INTERVAL_HOURS,
+        )
+
+    async def stop_renewal(self) -> None:
+        """Stop the background renewal task."""
+        if self._renewal_task is not None:
+            import asyncio
+            import contextlib
+
+            self._renewal_task.cancel()
+            try:
+                with contextlib.suppress(asyncio.CancelledError):
+                    await self._renewal_task
+            except Exception:
+                log.exception("tls.renewal.stop_error")
+            self._renewal_task = None
+
+    # -- SSL contexts ----------------------------------------------------------
+
+    def get_server_ssl_context(self) -> ssl.SSLContext | None:
+        """Build an SSL context for the uvicorn HTTPS listener.
+
+        Uses the frontend cert (external CA or self-issued).
+        Returns None if no certs are available.
+        """
+        if self._frontend_bundle is None:
+            return None
+        _require_lacme()
+        from lacme.mtls import server_ssl_context
+
+        return server_ssl_context(  # type: ignore[no-any-return]
+            cert_pem=self._frontend_bundle.fullchain_pem,
+            key_pem=self._frontend_bundle.key_pem,
+            ca_cert_pem=self.get_root_cert_pem(),
+        )
+
+    def get_client_ssl_context(self) -> ssl.SSLContext | None:
+        """Build an mTLS client context for connecting to cluster services.
+
+        Uses the internal cert for mutual authentication.
+        Returns None if no certs are available.
+        """
+        if self._internal_bundle is None:
+            return None
+        _require_lacme()
+        from lacme.mtls import client_ssl_context
+
+        return client_ssl_context(  # type: ignore[no-any-return]
+            cert_pem=self._internal_bundle.cert_pem,
+            key_pem=self._internal_bundle.key_pem,
+            ca_cert_pem=self.get_root_cert_pem(),
+        )
+
+    # -- Properties ------------------------------------------------------------
+
+    def list_certs(self) -> list[Any]:
+        """List all stored certificate bundles."""
+        return self._store.list_certs()
+
+    def renew_cert(self, domain: str) -> Any:
+        """Force-renew a certificate by domain. Returns the new bundle."""
+        if self._ca is None:
+            raise RuntimeError("CA not initialized")
+        existing = self._store.load_cert(domain)
+        if existing is None:
+            raise ValueError(f"No certificate for {domain}")
+        # Issue new cert first, then delete old (safe if issuance fails)
+        bundle = self._ca.issue(list(existing.domains))
+        self._store.delete_cert(domain)
+        self._store.save_cert(bundle)
+        # Update in-memory bundles if this is the console's own cert
+        if self._internal_bundle and bundle.domain == self._internal_bundle.domain:
+            self._internal_bundle = bundle
+        if self._frontend_bundle and bundle.domain == self._frontend_bundle.domain:
+            self._frontend_bundle = bundle
+        return bundle
+
+    def delete_cert(self, domain: str) -> bool:
+        """Delete a certificate by domain."""
+        return self._store.delete_cert(domain)
+
+    @property
+    def ca_initialized(self) -> bool:
+        return self._ca is not None
+
+    @property
+    def internal_bundle(self) -> Any | None:
+        return self._internal_bundle
+
+    @property
+    def frontend_bundle(self) -> Any | None:
+        return self._frontend_bundle

turnstone/core/auth.py

@@ -157,7 +157,7 @@ PUBLIC_PATHS: frozenset[str] = frozenset(
         "/api/auth/oidc/callback",
     }
 )
-PUBLIC_PREFIXES: tuple[str, ...] = ("/static/", "/shared/")
+PUBLIC_PREFIXES: tuple[str, ...] = ("/static/", "/shared/", "/acme/")
 
 WRITE_PATHS: frozenset[str] = frozenset(
     {

turnstone/core/config.py

@@ -125,6 +125,10 @@ _CONFIG_MAP: dict[str, dict[str, str]] = {
         "port": "redis_port",
         "password": "redis_password",
         "db": "redis_db",
+        "tls": "redis_tls",
+        "tls_ca": "redis_tls_ca",
+        "tls_cert": "redis_tls_cert",
+        "tls_key": "redis_tls_key",
     },
     "console": {
         "host": "host",
@@ -157,6 +161,10 @@ _CONFIG_MAP: dict[str, dict[str, str]] = {
         "url": "db_url",
         "path": "db_path",
         "pool_size": "db_pool_size",
+        "sslmode": "db_sslmode",
+        "sslrootcert": "db_sslrootcert",
+        "sslcert": "db_sslcert",
+        "sslkey": "db_sslkey",
     },
     "judge": {
         "enabled": "judge_enabled",

turnstone/core/judge.py

@@ -853,6 +853,10 @@ If you used read_file to check a target, cite what you found."""
 # ---------------------------------------------------------------------------
 
 
+class _ExecutorPoisonedError(Exception):
+    """Raised when a timeout leaves the executor's worker thread stuck."""
+
+
 class IntentJudge:
     """Session-scoped LLM judge for intent validation.
 
@@ -912,18 +916,12 @@ class IntentJudge:
             self._model = session_model
             self._judge_context_window = context_window
 
-        # Executor for timeout-guarded API calls (1 thread — judge is serial)
-        self._executor = ThreadPoolExecutor(max_workers=1, thread_name_prefix="judge-api")
-
-    def shutdown(self) -> None:
-        """Release the executor thread pool."""
-        self._executor.shutdown(wait=False, cancel_futures=True)
-
     def evaluate(
         self,
         items: list[dict[str, Any]],
         messages: list[dict[str, Any]],
         callback: Callable[[IntentVerdict], None],
+        cancel_event: threading.Event | None = None,
     ) -> list[IntentVerdict]:
         """Evaluate tool calls. Returns heuristic verdicts immediately.
 
@@ -936,6 +934,10 @@ class IntentJudge:
                 ``func_args``, ``approval_label``, ``call_id``).
             messages: Conversation history (OpenAI message format).
             callback: Called with each LLM verdict (or timeout/error fallback).
+            cancel_event: When set, the daemon judge thread abandons
+                remaining work.  Callers should set this after the user
+                has already made an approval decision so the judge does
+                not keep consuming inference resources.
 
         Returns:
             List of heuristic verdicts (one per item), available immediately.
@@ -958,7 +960,7 @@ class IntentJudge:
         # Spawn daemon thread for LLM judge
         thread = threading.Thread(
             target=self._run_judge,
-            args=(items, messages, heuristic_verdicts, callback),
+            args=(items, messages, heuristic_verdicts, callback, cancel_event),
             daemon=True,
             name="intent-judge",
         )
@@ -972,25 +974,44 @@ class IntentJudge:
         messages: list[dict[str, Any]],
         heuristic_verdicts: list[IntentVerdict],
         callback: Callable[[IntentVerdict], None],
+        cancel_event: threading.Event | None = None,
     ) -> None:
         """Daemon thread: run LLM judge for each item and invoke callback."""
-        for item, h_verdict in zip(items, heuristic_verdicts, strict=True):
-            try:
-                llm_verdict = self._evaluate_single(item, messages)
-                # Arbitrate: only callback when LLM upgrades the heuristic
-                if llm_verdict and llm_verdict.confidence > h_verdict.confidence:
-                    callback(llm_verdict)
-                # else: heuristic already delivered, no duplicate callback
-            except Exception:
-                log.exception(
-                    "Judge evaluation failed for %s",
-                    item.get("func_name", "?"),
-                )
+        # Evaluation-scoped executor — avoids sharing mutable state with
+        # other daemon threads from concurrent evaluate() calls.
+        executor = ThreadPoolExecutor(max_workers=1, thread_name_prefix="judge-api")
+        try:
+            for idx, (item, h_verdict) in enumerate(zip(items, heuristic_verdicts, strict=True)):
+                if cancel_event and cancel_event.is_set():
+                    log.debug("judge.cancelled", remaining=len(items) - idx)
+                    return
+                try:
+                    llm_verdict = self._evaluate_single(item, messages, cancel_event, executor)
+                    if cancel_event and cancel_event.is_set():
+                        return
+                    # Arbitrate: only callback when LLM upgrades the heuristic
+                    if llm_verdict and llm_verdict.confidence > h_verdict.confidence:
+                        callback(llm_verdict)
+                    # else: heuristic already delivered, no duplicate callback
+                except _ExecutorPoisonedError:
+                    # Timeout left the worker stuck — replace the executor
+                    # so subsequent items don't queue behind it.
+                    executor.shutdown(wait=False, cancel_futures=True)
+                    executor = ThreadPoolExecutor(max_workers=1, thread_name_prefix="judge-api")
+                except Exception:
+                    log.exception(
+                        "Judge evaluation failed for %s",
+                        item.get("func_name", "?"),
+                    )
+        finally:
+            executor.shutdown(wait=False, cancel_futures=True)
 
     def _evaluate_single(
         self,
         item: dict[str, Any],
         messages: list[dict[str, Any]],
+        cancel_event: threading.Event | None,
+        executor: ThreadPoolExecutor,
     ) -> IntentVerdict | None:
         """Run LLM judge for a single tool call. Returns verdict or None."""
         start = time.monotonic()
@@ -1020,6 +1041,9 @@ class IntentJudge:
         result = None  # will hold the last CompletionResult
 
         for turn in range(_JUDGE_MAX_TURNS):
+            if cancel_event and cancel_event.is_set():
+                return None
+
             turn_start = time.monotonic()
 
             is_last_turn = turn == _JUDGE_MAX_TURNS - 1
@@ -1043,7 +1067,7 @@ class IntentJudge:
             # 10 minutes — far too long for an advisory judge on local models.
             per_call_timeout = max(timeout_budget, 5.0)  # at least 5s
             try:
-                future = self._executor.submit(
+                future = executor.submit(
                     self._provider.create_completion,
                     client=self._client,
                     model=self._model,
@@ -1053,17 +1077,24 @@ class IntentJudge:
                     temperature=0.0,
                     reasoning_effort="medium",
                 )
-                result = future.result(timeout=per_call_timeout)
+                # Poll in 1s increments so we notice cancellation promptly
+                # instead of blocking for the full per_call_timeout.
+                deadline = time.monotonic() + per_call_timeout
+                while True:
+                    remaining = deadline - time.monotonic()
+                    if cancel_event and cancel_event.is_set():
+                        future.cancel()
+                        return None
+                    if remaining <= 0:
+                        raise TimeoutError
+                    try:
+                        result = future.result(timeout=min(remaining, 1.0))
+                        break
+                    except TimeoutError:
+                        pass  # loop back to check remaining/cancel
             except TimeoutError:
                 log.warning("Judge LLM call timed out on turn %d (%.0fs)", turn, per_call_timeout)
-                # Abandon the lingering API call and replace the executor so
-                # subsequent items in the batch don't queue behind it.
-                self._executor.shutdown(wait=False, cancel_futures=True)
-                self._executor = ThreadPoolExecutor(
-                    max_workers=1,
-                    thread_name_prefix="judge-api",
-                )
-                return None
+                raise _ExecutorPoisonedError from None
             except Exception:
                 log.exception("Judge LLM call failed on turn %d", turn)
                 return None

turnstone/core/providers/_openai.py

@@ -273,6 +273,29 @@ class OpenAIProvider:
                 result.append(tool)
         return result
 
+    # -- message sanitisation ------------------------------------------------
+
+    @staticmethod
+    def _sanitize_messages(
+        messages: list[dict[str, Any]],
+    ) -> list[dict[str, Any]]:
+        """Ensure assistant messages always have ``content`` or ``tool_calls``.
+
+        OpenAI-compatible APIs reject assistant messages that have neither.
+        This is a defensive catch-all; the upstream layers should already
+        guarantee well-formed messages.
+        """
+        out: list[dict[str, Any]] = []
+        for msg in messages:
+            if (
+                msg.get("role") == "assistant"
+                and msg.get("content") is None
+                and not msg.get("tool_calls")
+            ):
+                msg = {**msg, "content": ""}
+            out.append(msg)
+        return out
+
     # -- streaming -----------------------------------------------------------
 
     def create_streaming(
@@ -289,6 +312,7 @@ class OpenAIProvider:
         deferred_names: frozenset[str] | None = None,
     ) -> Iterator[StreamChunk]:
         caps = self.get_capabilities(model)
+        messages = self._sanitize_messages(messages)
         kwargs: dict[str, Any] = {
             "model": model,
             "messages": messages,
@@ -402,6 +426,7 @@ class OpenAIProvider:
         deferred_names: frozenset[str] | None = None,
     ) -> CompletionResult:
         caps = self.get_capabilities(model)
+        messages = self._sanitize_messages(messages)
         kwargs: dict[str, Any] = {
             "model": model,
             "messages": messages,

turnstone/core/session.py

@@ -319,6 +319,7 @@ class ChatSession:
         # Intent validation judge (lazy-initialized)
         self._judge_config: JudgeConfig | None = judge_config
         self._judge: IntentJudge | None = None
+        self._judge_cancel_event: threading.Event | None = None
         # MCP tool integration: merge external tools with built-in
         self._mcp_client = mcp_client
         self._mcp_refresh_cb: Any = None  # Callable | None (avoid import)
@@ -639,8 +640,8 @@ class ChatSession:
 
     def close(self) -> None:
         """Release resources (listener registrations, etc.)."""
-        if self._judge is not None:
-            self._judge.shutdown()
+        if self._judge_cancel_event is not None:
+            self._judge_cancel_event.set()
         if self._mcp_client and self._mcp_refresh_cb:
             self._mcp_client.remove_listener(self._mcp_refresh_cb)
             self._mcp_refresh_cb = None
@@ -891,7 +892,10 @@ class ChatSession:
                 "   search(query='MAX_RETRIES') → "
                 "read_file(path='found.py') → "
                 "edit_file(path='found.py')\n\n"
-                "Plan, think through, or strategize → plan_agent:\n"
+                "Plan, design, or architect something → "
+                "explore codebase then plan_agent:\n"
+                "   bash(command='ls') → read_file(path='app.py') → "
+                "plan_agent(goal='add caching to the application')\n"
                 "   plan_agent(goal='refactor database layer "
                 "from monolith to service')\n"
                 "   plan_agent(goal='restructure auth module')\n\n"
@@ -1666,7 +1670,7 @@ class ChatSession:
             self.ui.on_stream_end()
             partial: dict[str, Any] = {"role": "assistant"}
             partial_content = "".join(content_parts)
-            partial["content"] = partial_content or None
+            partial["content"] = partial_content or ""
             # Deliberately omit tool_calls — they are incomplete
             if provider_blocks:
                 partial["_provider_content"] = provider_blocks
@@ -1697,10 +1701,7 @@ class ChatSession:
         msg: dict[str, Any] = {"role": "assistant"}
 
         content = "".join(content_parts)
-        if content:
-            msg["content"] = content
-        else:
-            msg["content"] = None
+        msg["content"] = content or ""
 
         if tool_calls_acc:
             msg["tool_calls"] = [tool_calls_acc[i] for i in sorted(tool_calls_acc)]
@@ -2071,20 +2072,24 @@ class ChatSession:
     def _evaluate_intent(
         self,
         items: list[dict[str, Any]],
-    ) -> None:
+    ) -> threading.Event | None:
         """Run intent validation on pending approval items.
 
         Attaches heuristic verdicts to items immediately.  Spawns the
         async LLM judge that delivers final verdicts via UI callback.
+
+        Returns a cancel event that, when set, tells the daemon judge
+        thread to abandon remaining work.  Callers should set this
+        after the user has made an approval decision.
         """
         judge = self._ensure_judge()
         if not judge:
-            return
+            return None
 
         # Only evaluate items that need approval and aren't errors
         pending = [it for it in items if it.get("needs_approval") and not it.get("error")]
         if not pending:
-            return
+            return None
 
         # Build func_args from tool-specific item keys so the heuristic
         # engine can pattern-match on argument content.
@@ -2122,16 +2127,20 @@ class ChatSession:
             except Exception:
                 log.debug("judge.verdict_delivery_failed", exc_info=True)
 
+        cancel_event = threading.Event()
         heuristic_verdicts = judge.evaluate(
             pending,
             list(self.messages),  # snapshot — daemon thread must not see mutations
             callback=_on_verdict,
+            cancel_event=cancel_event,
         )
 
         # Attach heuristic verdicts to items for the approval UI
         for item, verdict in zip(pending, heuristic_verdicts, strict=True):
             item["_heuristic_verdict"] = verdict.to_dict()
 
+        return cancel_event
+
     def _evaluate_output(self, call_id: str, output: str, func_name: str) -> str:
         """Run the output guard on tool result text.
 
@@ -2181,12 +2190,20 @@ class ChatSession:
         # Phase 1: prepare all tool calls
         items = [self._prepare_tool(tc) for tc in tool_calls]
 
-        # Intent validation (advisory, non-blocking)
-        self._evaluate_intent(items)
+        # Intent validation (advisory, non-blocking).
+        # Cancel any prior judge thread before spawning a new one.
+        if self._judge_cancel_event is not None:
+            self._judge_cancel_event.set()
+        judge_cancel = self._evaluate_intent(items)
+        self._judge_cancel_event = judge_cancel  # track for close()
 
         # Phase 2: approve via UI
         self._emit_state("attention")
-        approved, user_feedback = self.ui.approve_tools(items)
+        try:
+            approved, user_feedback = self.ui.approve_tools(items)
+        finally:
+            if judge_cancel:
+                judge_cancel.set()  # user decided (or disconnected) — stop judge
         self._emit_state("running")
         if not approved:
             # Mark all pending items as denied
@@ -4231,7 +4248,7 @@ class ChatSession:
             {"role": "system", "content": self._plan_system_content()},
             {
                 "role": "assistant",
-                "content": None,
+                "content": "",
                 "tool_calls": [
                     {
                         "id": tc_id,

turnstone/core/settings_registry.py

@@ -528,6 +528,29 @@ def _build_registry() -> dict[str, SettingDef]:
             "information from conversations into long-term memory. This helps the AI "
             "remember context across separate conversations.",
         ),
+        # -- tls ----------------------------------------------------------------
+        SettingDef(
+            "tls.enabled",
+            "bool",
+            False,
+            "Enable mTLS for inter-service communication",
+            "tls",
+            restart_required=True,
+            help="When enabled, the console runs an internal Certificate Authority and "
+            "ACME server. All cluster services (servers, bridge, channels) auto-provision "
+            "short-lived certificates for mutual TLS. Requires lacme: pip install turnstone[tls]",
+        ),
+        SettingDef(
+            "tls.acme_directory",
+            "str",
+            "",
+            "External ACME CA URL for the console's frontend HTTPS cert",
+            "tls",
+            restart_required=True,
+            help="Set to a public ACME directory URL (e.g. https://acme-v02.api.letsencrypt.org/"
+            "directory) to get a publicly trusted certificate for the console's HTTPS endpoint. "
+            "Leave empty to self-issue from the internal CA (use when behind a reverse proxy).",
+        ),
     ]
     return {d.key: d for d in defs}
 
@@ -543,7 +566,7 @@ BOOTSTRAP_SECTIONS: frozenset[str] = frozenset(
         "auth",
         "bridge",
         "console",
-    }
+    },
 )
 
 

turnstone/core/storage/_postgresql.py

@@ -30,6 +30,9 @@ from turnstone.core.storage._schema import (
     skill_versions,
     structured_memories,
     system_settings,
+    tls_account_keys,
+    tls_ca,
+    tls_certificates,
     tool_policies,
     usage_events,
     user_roles,
@@ -2805,6 +2808,108 @@ class PostgreSQLBackend:
             conn.commit()
             return result.rowcount
 
+    # -- TLS / ACME ------------------------------------------------------------
+
+    def save_tls_account_key(self, key_id: str, key_pem: str) -> None:
+        from sqlalchemy.dialects.postgresql import insert as pg_insert
+
+        now = datetime.now(UTC).strftime("%Y-%m-%dT%H:%M:%S")
+        stmt = pg_insert(tls_account_keys).values(id=key_id, key_pem=key_pem, created=now)
+        stmt = stmt.on_conflict_do_update(
+            index_elements=["id"],
+            set_={"key_pem": key_pem},
+        )
+        with self._engine.connect() as conn:
+            conn.execute(stmt)
+            conn.commit()
+
+    def load_tls_account_key(self, key_id: str) -> str | None:
+        with self._engine.connect() as conn:
+            row = conn.execute(
+                sa.select(tls_account_keys.c.key_pem).where(tls_account_keys.c.id == key_id)
+            ).first()
+            return row[0] if row else None
+
+    def save_tls_ca(self, name: str, cert_pem: str, key_pem: str) -> None:
+        from sqlalchemy.dialects.postgresql import insert as pg_insert
+
+        now = datetime.now(UTC).strftime("%Y-%m-%dT%H:%M:%S")
+        stmt = pg_insert(tls_ca).values(name=name, cert_pem=cert_pem, key_pem=key_pem, created=now)
+        stmt = stmt.on_conflict_do_update(
+            index_elements=["name"],
+            set_={"cert_pem": cert_pem, "key_pem": key_pem},
+        )
+        with self._engine.connect() as conn:
+            conn.execute(stmt)
+            conn.commit()
+
+    def load_tls_ca(self, name: str) -> dict[str, Any] | None:
+        with self._engine.connect() as conn:
+            row = conn.execute(sa.select(tls_ca).where(tls_ca.c.name == name)).first()
+            if not row:
+                return None
+            return _row_to_dict(row)
+
+    def save_tls_cert(
+        self,
+        domain: str,
+        cert_pem: str,
+        fullchain_pem: str,
+        key_pem: str,
+        issued_at: str,
+        expires_at: str,
+        meta: str | None = None,
+    ) -> None:
+        from sqlalchemy.dialects.postgresql import insert as pg_insert
+
+        stmt = pg_insert(tls_certificates).values(
+            domain=domain,
+            cert_pem=cert_pem,
+            fullchain_pem=fullchain_pem,
+            key_pem=key_pem,
+            issued_at=issued_at,
+            expires_at=expires_at,
+            meta=meta,
+        )
+        stmt = stmt.on_conflict_do_update(
+            index_elements=["domain"],
+            set_={
+                "cert_pem": cert_pem,
+                "fullchain_pem": fullchain_pem,
+                "key_pem": key_pem,
+                "issued_at": issued_at,
+                "expires_at": expires_at,
+                "meta": meta,
+            },
+        )
+        with self._engine.connect() as conn:
+            conn.execute(stmt)
+            conn.commit()
+
+    def load_tls_cert(self, domain: str) -> dict[str, Any] | None:
+        with self._engine.connect() as conn:
+            row = conn.execute(
+                sa.select(tls_certificates).where(tls_certificates.c.domain == domain)
+            ).first()
+            if not row:
+                return None
+            return _row_to_dict(row)
+
+    def list_tls_certs(self) -> list[dict[str, Any]]:
+        with self._engine.connect() as conn:
+            rows = conn.execute(
+                sa.select(tls_certificates).order_by(tls_certificates.c.domain)
+            ).fetchall()
+            return [_row_to_dict(r) for r in rows]
+
+    def delete_tls_cert(self, domain: str) -> bool:
+        with self._engine.connect() as conn:
+            result = conn.execute(
+                sa.delete(tls_certificates).where(tls_certificates.c.domain == domain)
+            )
+            conn.commit()
+            return result.rowcount > 0
+
     # -- Lifecycle -------------------------------------------------------------
 
     def close(self) -> None:

turnstone/core/storage/_protocol.py

@@ -952,6 +952,49 @@ class StorageBackend(Protocol):
         """Delete an MCP server definition. Returns True if existed."""
         ...
 
+    # -- TLS / ACME (lacme Store) ----------------------------------------------
+
+    def save_tls_account_key(self, key_id: str, key_pem: str) -> None:
+        """Persist an ACME account private key."""
+        ...
+
+    def load_tls_account_key(self, key_id: str) -> str | None:
+        """Load an ACME account key PEM by ID. Returns None if not found."""
+        ...
+
+    def save_tls_ca(self, name: str, cert_pem: str, key_pem: str) -> None:
+        """Persist a CA root certificate and key."""
+        ...
+
+    def load_tls_ca(self, name: str) -> dict[str, Any] | None:
+        """Load CA cert+key by name. Returns dict with cert_pem, key_pem or None."""
+        ...
+
+    def save_tls_cert(
+        self,
+        domain: str,
+        cert_pem: str,
+        fullchain_pem: str,
+        key_pem: str,
+        issued_at: str,
+        expires_at: str,
+        meta: str | None = None,
+    ) -> None:
+        """Persist an issued certificate (upsert by domain)."""
+        ...
+
+    def load_tls_cert(self, domain: str) -> dict[str, Any] | None:
+        """Load certificate by domain. Returns dict or None."""
+        ...
+
+    def list_tls_certs(self) -> list[dict[str, Any]]:
+        """List all stored certificates."""
+        ...
+
+    def delete_tls_cert(self, domain: str) -> bool:
+        """Delete a certificate by domain. Returns True if existed."""
+        ...
+
     # -- Lifecycle -------------------------------------------------------------
 
     def close(self) -> None:

turnstone/core/storage/_registry.py

@@ -22,6 +22,10 @@ def init_storage(
     url: str = "",
     pool_size: int = 2,
     run_migrations: bool = True,
+    sslmode: str = "",
+    sslrootcert: str = "",
+    sslcert: str = "",
+    sslkey: str = "",
 ) -> StorageBackend:
     """Initialize the storage backend singleton.
 
@@ -52,6 +56,26 @@ def init_storage(
         if not url:
             msg = "PostgreSQL backend requires a connection URL (db_url)"
             raise ValueError(msg)
+        # Append SSL params to URL if provided (validated + encoded)
+        valid_sslmodes = {"disable", "allow", "prefer", "require", "verify-ca", "verify-full"}
+        if sslmode and sslmode not in valid_sslmodes:
+            msg = f"Invalid sslmode: {sslmode!r} (expected one of {sorted(valid_sslmodes)})"
+            raise ValueError(msg)
+        ssl_params = {
+            k: v
+            for k, v in {
+                "sslmode": sslmode,
+                "sslrootcert": sslrootcert,
+                "sslcert": sslcert,
+                "sslkey": sslkey,
+            }.items()
+            if v
+        }
+        if ssl_params:
+            from urllib.parse import urlencode
+
+            sep = "&" if "?" in url else "?"
+            url += sep + urlencode(ssl_params)
         _storage = PostgreSQLBackend(url, pool_size=pool_size, create_tables=create_tables)
         log.info("Storage initialized: PostgreSQL")
 

turnstone/core/storage/_schema.py

@@ -547,3 +547,34 @@ oidc_pending_states = sa.Table(
     sa.Column("audience", sa.Text, nullable=False),
     sa.Column("created_at", sa.Text, nullable=False),
 )
+
+# ── TLS / ACME (lacme integration) ──────────────────────────────────────────
+
+tls_account_keys = sa.Table(
+    "tls_account_keys",
+    metadata,
+    sa.Column("id", sa.Text, primary_key=True),
+    sa.Column("key_pem", sa.Text, nullable=False),
+    sa.Column("created", sa.Text, nullable=False),
+)
+
+tls_ca = sa.Table(
+    "tls_ca",
+    metadata,
+    sa.Column("name", sa.Text, primary_key=True),
+    sa.Column("cert_pem", sa.Text, nullable=False),
+    sa.Column("key_pem", sa.Text, nullable=False),
+    sa.Column("created", sa.Text, nullable=False),
+)
+
+tls_certificates = sa.Table(
+    "tls_certificates",
+    metadata,
+    sa.Column("domain", sa.Text, primary_key=True),
+    sa.Column("cert_pem", sa.Text, nullable=False),
+    sa.Column("fullchain_pem", sa.Text, nullable=False),
+    sa.Column("key_pem", sa.Text, nullable=False),
+    sa.Column("issued_at", sa.Text, nullable=False),
+    sa.Column("expires_at", sa.Text, nullable=False),
+    sa.Column("meta", sa.Text, nullable=True),
+)

turnstone/core/storage/_sqlite.py

@@ -30,6 +30,9 @@ from turnstone.core.storage._schema import (
     skill_versions,
     structured_memories,
     system_settings,
+    tls_account_keys,
+    tls_ca,
+    tls_certificates,
     tool_policies,
     usage_events,
     user_roles,
@@ -2854,6 +2857,110 @@ class SQLiteBackend:
             conn.commit()
             return result.rowcount
 
+    # -- TLS / ACME ------------------------------------------------------------
+
+    def save_tls_account_key(self, key_id: str, key_pem: str) -> None:
+        from sqlalchemy.dialects.sqlite import insert as sqlite_insert
+
+        now = datetime.now(UTC).strftime("%Y-%m-%dT%H:%M:%S")
+        stmt = sqlite_insert(tls_account_keys).values(id=key_id, key_pem=key_pem, created=now)
+        stmt = stmt.on_conflict_do_update(
+            index_elements=["id"],
+            set_={"key_pem": key_pem},
+        )
+        with self._engine.connect() as conn:
+            conn.execute(stmt)
+            conn.commit()
+
+    def load_tls_account_key(self, key_id: str) -> str | None:
+        with self._engine.connect() as conn:
+            row = conn.execute(
+                sa.select(tls_account_keys.c.key_pem).where(tls_account_keys.c.id == key_id)
+            ).first()
+            return row[0] if row else None
+
+    def save_tls_ca(self, name: str, cert_pem: str, key_pem: str) -> None:
+        from sqlalchemy.dialects.sqlite import insert as sqlite_insert
+
+        now = datetime.now(UTC).strftime("%Y-%m-%dT%H:%M:%S")
+        stmt = sqlite_insert(tls_ca).values(
+            name=name, cert_pem=cert_pem, key_pem=key_pem, created=now
+        )
+        stmt = stmt.on_conflict_do_update(
+            index_elements=["name"],
+            set_={"cert_pem": cert_pem, "key_pem": key_pem},
+        )
+        with self._engine.connect() as conn:
+            conn.execute(stmt)
+            conn.commit()
+
+    def load_tls_ca(self, name: str) -> dict[str, Any] | None:
+        with self._engine.connect() as conn:
+            row = conn.execute(sa.select(tls_ca).where(tls_ca.c.name == name)).first()
+            if not row:
+                return None
+            return _row_to_dict(row)
+
+    def save_tls_cert(
+        self,
+        domain: str,
+        cert_pem: str,
+        fullchain_pem: str,
+        key_pem: str,
+        issued_at: str,
+        expires_at: str,
+        meta: str | None = None,
+    ) -> None:
+        from sqlalchemy.dialects.sqlite import insert as sqlite_insert
+
+        stmt = sqlite_insert(tls_certificates).values(
+            domain=domain,
+            cert_pem=cert_pem,
+            fullchain_pem=fullchain_pem,
+            key_pem=key_pem,
+            issued_at=issued_at,
+            expires_at=expires_at,
+            meta=meta,
+        )
+        stmt = stmt.on_conflict_do_update(
+            index_elements=["domain"],
+            set_={
+                "cert_pem": cert_pem,
+                "fullchain_pem": fullchain_pem,
+                "key_pem": key_pem,
+                "issued_at": issued_at,
+                "expires_at": expires_at,
+                "meta": meta,
+            },
+        )
+        with self._engine.connect() as conn:
+            conn.execute(stmt)
+            conn.commit()
+
+    def load_tls_cert(self, domain: str) -> dict[str, Any] | None:
+        with self._engine.connect() as conn:
+            row = conn.execute(
+                sa.select(tls_certificates).where(tls_certificates.c.domain == domain)
+            ).first()
+            if not row:
+                return None
+            return _row_to_dict(row)
+
+    def list_tls_certs(self) -> list[dict[str, Any]]:
+        with self._engine.connect() as conn:
+            rows = conn.execute(
+                sa.select(tls_certificates).order_by(tls_certificates.c.domain)
+            ).fetchall()
+            return [_row_to_dict(r) for r in rows]
+
+    def delete_tls_cert(self, domain: str) -> bool:
+        with self._engine.connect() as conn:
+            result = conn.execute(
+                sa.delete(tls_certificates).where(tls_certificates.c.domain == domain)
+            )
+            conn.commit()
+            return result.rowcount > 0
+
     # -- Lifecycle -------------------------------------------------------------
 
     def close(self) -> None:

turnstone/core/storage/_utils.py

@@ -152,7 +152,7 @@ def reconstruct_messages(rows: list[Any], ws_id: str) -> list[dict[str, Any]]:
             messages.append({"role": "user", "content": content or ""})
 
         elif role == "assistant":
-            msg: dict[str, Any] = {"role": "assistant", "content": content}
+            msg: dict[str, Any] = {"role": "assistant", "content": content or ""}
             if provider_data:
                 with contextlib.suppress(json.JSONDecodeError, TypeError):
                     msg["_provider_content"] = json.loads(provider_data)

turnstone/core/storage/migrations/versions/026_tls_certificates.py

@@ -0,0 +1,53 @@
+"""TLS certificate storage for lacme ACME integration.
+
+Three tables for the lacme Store protocol:
+- tls_account_keys: ACME account private keys
+- tls_ca: CA root certificate and key
+- tls_certificates: Issued service certificates
+
+Revision ID: 026
+Revises: 025
+Create Date: 2026-03-25
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+revision = "026"
+down_revision = "025"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "tls_account_keys",
+        sa.Column("id", sa.Text, primary_key=True),
+        sa.Column("key_pem", sa.Text, nullable=False),
+        sa.Column("created", sa.Text, nullable=False),
+    )
+
+    op.create_table(
+        "tls_ca",
+        sa.Column("name", sa.Text, primary_key=True),
+        sa.Column("cert_pem", sa.Text, nullable=False),
+        sa.Column("key_pem", sa.Text, nullable=False),
+        sa.Column("created", sa.Text, nullable=False),
+    )
+
+    op.create_table(
+        "tls_certificates",
+        sa.Column("domain", sa.Text, primary_key=True),
+        sa.Column("cert_pem", sa.Text, nullable=False),
+        sa.Column("fullchain_pem", sa.Text, nullable=False),
+        sa.Column("key_pem", sa.Text, nullable=False),
+        sa.Column("issued_at", sa.Text, nullable=False),
+        sa.Column("expires_at", sa.Text, nullable=False),
+        sa.Column("meta", sa.Text, nullable=True),
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("tls_certificates")
+    op.drop_table("tls_ca")
+    op.drop_table("tls_account_keys")

turnstone/core/tls.py

@@ -0,0 +1,254 @@
+"""TLS Client — certificate provisioning for service nodes.
+
+Non-console services (server, bridge, channel gateway) use this to
+request certificates from the console's ACME endpoint and build
+SSL contexts for mTLS communication.
+
+Flow:
+1. Fetch CA root cert from console (plain HTTP, first boot)
+2. Request service cert via ACME (plain HTTP, first boot)
+3. Build SSL contexts for uvicorn (server) and httpx (client)
+4. Start auto-renewal (uses existing cert for mTLS to console)
+"""
+
+from __future__ import annotations
+
+from typing import TYPE_CHECKING, Any
+
+if TYPE_CHECKING:
+    import ssl
+
+    from turnstone.core.storage._protocol import StorageBackend
+
+from turnstone.core.log import get_logger
+
+log = get_logger(__name__)
+
+_RENEW_INTERVAL_HOURS = 24
+_RENEW_BEFORE_EXPIRY_DAYS = 1
+
+
+def _require_lacme() -> Any:
+    try:
+        import lacme
+    except ImportError:
+        raise ImportError(
+            "lacme is required for TLS support. Install with: pip install turnstone[tls]",
+        ) from None
+    return lacme
+
+
+class TLSClient:
+    """TLS client for service nodes.
+
+    Requests certificates from the console's ACME endpoint and provides
+    SSL contexts for server (uvicorn) and client (httpx) use.
+
+    Typical usage::
+
+        client = TLSClient(storage, console_url="http://console:8080")
+        await client.init()             # Fetch CA, request cert
+        server_ctx = client.get_server_ssl_context()  # For uvicorn
+        client_ctx = client.get_client_ssl_context()  # For httpx
+        await client.start_renewal()    # Background auto-renewal
+    """
+
+    def __init__(
+        self,
+        storage: StorageBackend,
+        console_url: str = "",
+        hostnames: list[str] | None = None,
+    ) -> None:
+        lacme = _require_lacme()
+
+        from turnstone.core.tls_store import StorageStore
+
+        self._storage = storage
+        self._store = StorageStore(storage)
+        self._console_url = console_url.rstrip("/") if console_url else ""
+        self._hostnames = hostnames or []
+        self._event_dispatcher = lacme.EventDispatcher()
+        self._ca_pem: bytes | None = None
+        self._bundle: Any | None = None
+        self._renewal_task: Any | None = None
+        self._renewal_client: Any | None = None
+
+        # Wire Prometheus metrics
+        try:
+            from lacme.metrics import setup_metrics
+
+            setup_metrics(self._event_dispatcher)
+        except ImportError:
+            pass
+
+    async def init(self) -> None:
+        """Fetch CA root cert and request a service certificate.
+
+        If no console_url was provided, discovers it from the services
+        table. Performs initial cert provisioning over plain HTTP (ACME
+        protocol provides integrity via JWS).
+        """
+        if not self._console_url:
+            self._console_url = self._discover_console_url()
+        await self._fetch_ca_cert()
+        await self._request_cert()
+
+    def _discover_console_url(self) -> str:
+        """Look up the console URL from the services table."""
+        consoles = self._storage.list_services("console", max_age_seconds=3600)
+        if not consoles:
+            raise RuntimeError(
+                "No console service found in services table. "
+                "Ensure the console is running and has registered, "
+                "or provide console_url explicitly."
+            )
+        url = consoles[0]["url"]
+        log.info("tls.console.discovered", url=url)
+        return url
+
+    async def _fetch_ca_cert(self) -> None:
+        """Fetch the CA root cert from the console.
+
+        Always uses plain HTTP for bootstrapping — the node doesn't have
+        the CA cert yet, so it can't verify HTTPS.
+        """
+        import httpx
+
+        # Force HTTP for bootstrap (can't verify HTTPS without CA cert)
+        base = self._console_url.replace("https://", "http://")
+        url = f"{base}/acme/ca.pem"
+        try:
+            async with httpx.AsyncClient() as client:
+                resp = await client.get(url)
+                resp.raise_for_status()
+                self._ca_pem = resp.content
+                log.info("tls.ca.fetched", url=url)
+        except Exception:
+            log.error("tls.ca.fetch_failed", url=url, exc_info=True)
+            raise
+
+    async def _request_cert(self) -> None:
+        """Request a certificate from the console's ACME endpoint."""
+        if not self._hostnames:
+            raise ValueError("No hostnames configured for TLS cert request")
+
+        # Check for existing valid cert
+        from datetime import UTC, datetime
+
+        existing = self._store.load_cert(self._hostnames[0])
+        if existing is not None and existing.expires_at > datetime.now(UTC):
+            self._bundle = existing
+            log.info("tls.cert.loaded", domain=self._hostnames[0])
+            return
+
+        # Request new cert via ACME (plain HTTP for initial request)
+        lacme = _require_lacme()
+        from lacme.challenges.http01 import HTTP01Handler
+
+        directory_url = f"{self._console_url}/acme/directory"
+
+        async with lacme.Client(
+            directory_url=directory_url,
+            store=self._store,
+            event_dispatcher=self._event_dispatcher,
+            challenge_handler=HTTP01Handler(),
+            allow_insecure=True,
+        ) as client:
+            self._bundle = await client.issue(self._hostnames)
+            self._store.save_cert(self._bundle)
+            log.info("tls.cert.issued", domain=self._hostnames[0])
+
+    # -- Auto-renewal ----------------------------------------------------------
+
+    async def start_renewal(self) -> None:
+        """Start background auto-renewal via the console's ACME endpoint."""
+        lacme = _require_lacme()
+
+        def _on_renewed(bundle: Any) -> None:
+            self._bundle = bundle
+            log.info("tls.cert.renewed", domain=bundle.domain)
+
+        from lacme.challenges.http01 import HTTP01Handler
+
+        directory_url = f"{self._console_url}/acme/directory"
+        client = lacme.Client(
+            directory_url=directory_url,
+            store=self._store,
+            event_dispatcher=self._event_dispatcher,
+            challenge_handler=HTTP01Handler(),
+            allow_insecure=True,
+        )
+        await client.__aenter__()
+
+        manager = lacme.RenewalManager(
+            client=client,
+            store=self._store,
+            interval_hours=_RENEW_INTERVAL_HOURS,
+            days_before_expiry=_RENEW_BEFORE_EXPIRY_DAYS,
+            on_renewed=_on_renewed,
+            event_dispatcher=self._event_dispatcher,
+        )
+        self._renewal_task = manager.start()
+        self._renewal_client = client
+        log.info("tls.renewal.started", directory=directory_url)
+
+    async def stop_renewal(self) -> None:
+        """Stop background renewal and close the ACME client."""
+        import contextlib
+
+        if self._renewal_task is not None:
+            import asyncio
+
+            self._renewal_task.cancel()
+            try:
+                with contextlib.suppress(asyncio.CancelledError):
+                    await self._renewal_task
+            except Exception:
+                log.exception("tls.renewal.stop_error")
+            self._renewal_task = None
+        if self._renewal_client is not None:
+            with contextlib.suppress(Exception):
+                await self._renewal_client.__aexit__(None, None, None)
+            self._renewal_client = None
+
+    # -- SSL contexts ----------------------------------------------------------
+
+    def get_server_ssl_context(self) -> ssl.SSLContext | None:
+        """Build SSL context for uvicorn HTTPS listener."""
+        if self._bundle is None or self._ca_pem is None:
+            return None
+        _require_lacme()
+        from lacme.mtls import server_ssl_context
+
+        return server_ssl_context(  # type: ignore[no-any-return]
+            cert_pem=self._bundle.fullchain_pem,
+            key_pem=self._bundle.key_pem,
+            ca_cert_pem=self._ca_pem,
+        )
+
+    def get_client_ssl_context(self) -> ssl.SSLContext | None:
+        """Build mTLS client context for httpx connections."""
+        if self._bundle is None or self._ca_pem is None:
+            return None
+        _require_lacme()
+        from lacme.mtls import client_ssl_context
+
+        return client_ssl_context(  # type: ignore[no-any-return]
+            cert_pem=self._bundle.cert_pem,
+            key_pem=self._bundle.key_pem,
+            ca_cert_pem=self._ca_pem,
+        )
+
+    # -- Properties ------------------------------------------------------------
+
+    @property
+    def ca_pem(self) -> bytes | None:
+        return self._ca_pem
+
+    @property
+    def bundle(self) -> Any | None:
+        return self._bundle
+
+    @property
+    def initialized(self) -> bool:
+        return self._bundle is not None and self._ca_pem is not None

turnstone/core/tls_store.py

@@ -0,0 +1,127 @@
+"""lacme Store adapter backed by turnstone's storage backend.
+
+Bridges lacme's Store protocol to turnstone's StorageBackend, keeping
+all TLS state (account keys, CA, certificates) in the shared database
+rather than the filesystem.
+"""
+
+from __future__ import annotations
+
+import json
+from datetime import UTC, datetime
+from typing import TYPE_CHECKING, Any
+
+if TYPE_CHECKING:
+    from turnstone.core.storage._protocol import StorageBackend
+
+
+def _parse_utc(iso: str) -> datetime:
+    """Parse an ISO timestamp, assuming UTC if naive."""
+    dt = datetime.fromisoformat(iso)
+    if dt.tzinfo is None:
+        dt = dt.replace(tzinfo=UTC)
+    return dt
+
+
+def _ensure_lacme() -> Any:
+    """Import lacme, raising a clear error if not installed."""
+    try:
+        import lacme
+    except ImportError:
+        raise ImportError(
+            "lacme is required for TLS support. Install with: pip install turnstone[tls]",
+        ) from None
+    return lacme
+
+
+class StorageStore:
+    """lacme Store implementation backed by turnstone's database.
+
+    Implements the 7-method Store protocol that lacme's CertificateAuthority
+    and Client use for persistence.
+    """
+
+    def __init__(self, storage: StorageBackend) -> None:
+        self._storage = storage
+
+    # -- Account key -----------------------------------------------------------
+
+    def save_account_key(self, key: Any) -> None:
+        """Persist the ACME account private key."""
+        from cryptography.hazmat.primitives.serialization import (
+            Encoding,
+            NoEncryption,
+            PrivateFormat,
+        )
+
+        key_pem = key.private_bytes(Encoding.PEM, PrivateFormat.PKCS8, NoEncryption()).decode()
+        self._storage.save_tls_account_key("default", key_pem)
+
+    def load_account_key(self) -> Any | None:
+        """Load the ACME account private key, or None."""
+        from cryptography.hazmat.primitives.serialization import load_pem_private_key
+
+        pem = self._storage.load_tls_account_key("default")
+        if pem is None:
+            return None
+        return load_pem_private_key(pem.encode(), password=None)
+
+    # -- CA --------------------------------------------------------------------
+
+    def save_ca(self, name: str, cert_pem: bytes, key_pem: bytes) -> None:
+        """Persist a CA root certificate and key."""
+        self._storage.save_tls_ca(name, cert_pem.decode(), key_pem.decode())
+
+    def load_ca(self, name: str) -> tuple[bytes, bytes] | None:
+        """Load CA cert+key by name. Returns (cert_pem, key_pem) or None."""
+        row = self._storage.load_tls_ca(name)
+        if row is None:
+            return None
+        return row["cert_pem"].encode(), row["key_pem"].encode()
+
+    # -- Certificates ----------------------------------------------------------
+
+    def save_cert(self, bundle: Any) -> Any:
+        """Persist an issued certificate bundle."""
+        meta = json.dumps({"domains": list(bundle.domains)})
+        self._storage.save_tls_cert(
+            domain=bundle.domain,
+            cert_pem=bundle.cert_pem.decode(),
+            fullchain_pem=bundle.fullchain_pem.decode(),
+            key_pem=bundle.key_pem.decode(),
+            issued_at=bundle.issued_at.isoformat(),
+            expires_at=bundle.expires_at.isoformat(),
+            meta=meta,
+        )
+        return bundle
+
+    def load_cert(self, domain: str) -> Any | None:
+        """Load a certificate bundle by domain."""
+        row = self._storage.load_tls_cert(domain)
+        if row is None:
+            return None
+        return self._row_to_bundle(row)
+
+    def list_certs(self) -> list[Any]:
+        """List all stored certificate bundles."""
+        rows = self._storage.list_tls_certs()
+        return [self._row_to_bundle(r) for r in rows]
+
+    def delete_cert(self, domain: str) -> bool:
+        """Delete a stored certificate bundle by domain."""
+        return self._storage.delete_tls_cert(domain)
+
+    def _row_to_bundle(self, row: dict[str, Any]) -> Any:
+        """Convert a storage row dict to a lacme CertBundle."""
+        lacme = _ensure_lacme()
+        meta = json.loads(row.get("meta") or "{}")
+        domains = tuple(meta.get("domains", [row["domain"]]))
+        return lacme.CertBundle(
+            domain=row["domain"],
+            domains=domains,
+            cert_pem=row["cert_pem"].encode(),
+            fullchain_pem=row["fullchain_pem"].encode(),
+            key_pem=row["key_pem"].encode(),
+            issued_at=_parse_utc(row["issued_at"]),
+            expires_at=_parse_utc(row["expires_at"]),
+        )

turnstone/mq/async_broker.py

@@ -47,6 +47,10 @@ class AsyncRedisBroker:
         prefix: str = "turnstone",
         password: str | None = None,
         response_ttl: int = 600,
+        ssl: bool = False,
+        ssl_ca_certs: str | None = None,
+        ssl_certfile: str | None = None,
+        ssl_keyfile: str | None = None,
     ) -> None:
         self._host = host
         self._port = port
@@ -54,6 +58,15 @@ class AsyncRedisBroker:
         self._password = password
         self._prefix = prefix
         self._response_ttl = response_ttl
+        self._ssl_kwargs: dict[str, Any] = {}
+        if ssl:
+            self._ssl_kwargs["ssl"] = True
+            if ssl_ca_certs:
+                self._ssl_kwargs["ssl_ca_certs"] = ssl_ca_certs
+            if ssl_certfile:
+                self._ssl_kwargs["ssl_certfile"] = ssl_certfile
+            if ssl_keyfile:
+                self._ssl_kwargs["ssl_keyfile"] = ssl_keyfile
         self._redis: _aredis_t.Redis[str] | None = None
         self._pubsub: _aredis_t.client.PubSub | None = None
         self._tasks: dict[str, asyncio.Task[None]] = {}
@@ -82,6 +95,7 @@ class AsyncRedisBroker:
             password=self._password,
             decode_responses=True,
             retry_on_timeout=True,
+            **self._ssl_kwargs,
             max_connections=200,
         )
         self._pubsub = self._redis.pubsub(ignore_subscribe_messages=True)

turnstone/mq/bridge.py

@@ -78,6 +78,8 @@ class Bridge:
         heartbeat_ttl: int = 60,
         auth_token: str = "",
         token_manager: Any = None,
+        tls_verify: Any = True,
+        tls_cert: tuple[str, str] | None = None,
     ) -> None:
         self._server_url = server_url.rstrip("/")
         self._broker = broker or RedisBroker()
@@ -89,6 +91,8 @@ class Bridge:
         self._started_at = time.time()
         self._auth_token = auth_token
         self._token_manager = token_manager  # ServiceTokenManager (auto-rotating)
+        self._tls_verify = tls_verify  # CA cert path or ssl.SSLContext or True
+        self._tls_cert = tls_cert  # (cert_path, key_path) for mTLS
 
         # Shared httpx client for short-lived POST requests (main thread only).
         # Auth headers refreshed per-request via event hook so auto-rotating
@@ -97,6 +101,8 @@ class Bridge:
             base_url=self._server_url,
             timeout=30,
             event_hooks={"request": [self._inject_auth]},
+            verify=self._tls_verify,
+            cert=self._tls_cert,
         )
 
         # Protected by _lock — accessed from main, global SSE, and per-ws SSE threads
@@ -592,6 +598,8 @@ class Bridge:
             base_url=self._server_url,
             timeout=None,
             event_hooks={"request": [self._inject_auth]},
+            verify=self._tls_verify,
+            cert=self._tls_cert,
         ) as sse_client:
             while self._running:
                 # Stop if workstream was closed (thread removed from registry)
@@ -903,6 +911,8 @@ class Bridge:
             base_url=self._server_url,
             timeout=None,
             event_hooks={"request": [self._inject_auth]},
+            verify=self._tls_verify,
+            cert=self._tls_cert,
         ) as sse_client:
             while self._running:
                 try:
@@ -1125,6 +1135,45 @@ def main() -> None:
         )
         log.info("bridge.jwt_minted")
 
+    # TLS: request cert from console ACME if enabled
+    tls_verify: Any = True
+    tls_cert: tuple[str, str] | None = None
+    if os.environ.get("TURNSTONE_TLS_ENABLED", "").lower() in ("true", "1", "yes"):
+        try:
+            import asyncio
+            import socket
+
+            from turnstone.core.storage import init_storage
+            from turnstone.core.tls import TLSClient
+
+            db_backend = os.environ.get("TURNSTONE_DB_BACKEND", "sqlite")
+            db_url = os.environ.get("TURNSTONE_DB_URL", "")
+            db_path = os.environ.get("TURNSTONE_DB_PATH", "")
+            storage = init_storage(db_backend, path=db_path, url=db_url)
+
+            hostname = socket.getfqdn()
+            hostnames = [hostname, "localhost", "127.0.0.1"]
+            extra_sans = os.environ.get("TURNSTONE_TLS_SANS", "")
+            if extra_sans:
+                hostnames.extend(s.strip() for s in extra_sans.split(",") if s.strip())
+            tls_client = TLSClient(
+                storage=storage,
+                hostnames=hostnames,
+            )
+            asyncio.run(tls_client.init())
+            ssl_ctx = tls_client.get_client_ssl_context()
+            if ssl_ctx:
+                # SSLContext has both CA (verify server) and client cert
+                # (present to server) loaded — full mTLS in one object
+                tls_verify = ssl_ctx
+                if args.server_url.startswith("http://"):
+                    args.server_url = args.server_url.replace("http://", "https://")
+                log.info("bridge.tls.enabled: %s", args.server_url)
+        except ImportError:
+            log.warning("TLS enabled but lacme not installed")
+        except Exception:
+            log.warning("bridge.tls.init_failed", exc_info=True)
+
     bridge = Bridge(
         server_url=args.server_url,
         broker=broker,
@@ -1133,6 +1182,8 @@ def main() -> None:
         heartbeat_ttl=args.heartbeat_ttl,
         auth_token=auth_token,
         token_manager=token_manager,
+        tls_verify=tls_verify,
+        tls_cert=tls_cert,
     )
     bridge.run()
 

turnstone/mq/broker.py

@@ -122,11 +122,24 @@ class RedisBroker:
         prefix: str = "turnstone",
         password: str | None = None,
         response_ttl: int = 600,
+        ssl: bool = False,
+        ssl_ca_certs: str | None = None,
+        ssl_certfile: str | None = None,
+        ssl_keyfile: str | None = None,
     ) -> None:
         import redis
 
         self._prefix = prefix
         self._response_ttl = response_ttl
+        pool_kwargs: dict[str, Any] = {}
+        if ssl:
+            pool_kwargs["connection_class"] = redis.SSLConnection
+            if ssl_ca_certs:
+                pool_kwargs["ssl_ca_certs"] = ssl_ca_certs
+            if ssl_certfile:
+                pool_kwargs["ssl_certfile"] = ssl_certfile
+            if ssl_keyfile:
+                pool_kwargs["ssl_keyfile"] = ssl_keyfile
         self._pool: _redis_t.ConnectionPool = redis.ConnectionPool(
             host=host,
             port=port,
@@ -135,6 +148,7 @@ class RedisBroker:
             decode_responses=True,
             retry_on_timeout=True,
             max_connections=200,
+            **pool_kwargs,
         )
         self._redis: _redis_t.Redis[str] = cast(
             "_redis_t.Redis[str]",
@@ -256,7 +270,7 @@ class RedisBroker:
 
 
 def add_redis_args(parser: Any) -> None:
-    """Add ``--redis-host``, ``--redis-port``, ``--redis-password``, ``--redis-db``."""
+    """Add Redis CLI arguments including TLS options."""
     import os
 
     parser.add_argument(
@@ -281,6 +295,27 @@ def add_redis_args(parser: Any) -> None:
         default=0,
         help="Redis DB number (default: %(default)s)",
     )
+    parser.add_argument("--redis-tls", action="store_true", help="Enable Redis TLS")
+    parser.add_argument("--redis-tls-ca", default=None, help="Redis CA cert path")
+    parser.add_argument("--redis-tls-cert", default=None, help="Redis client cert path")
+    parser.add_argument("--redis-tls-key", default=None, help="Redis client key path")
+
+
+def _redis_tls_kwargs(args: Any) -> dict[str, Any]:
+    """Extract Redis TLS kwargs from parsed args."""
+    kwargs: dict[str, Any] = {}
+    if getattr(args, "redis_tls", False):
+        kwargs["ssl"] = True
+        ca = getattr(args, "redis_tls_ca", None)
+        if ca:
+            kwargs["ssl_ca_certs"] = ca
+        cert = getattr(args, "redis_tls_cert", None)
+        if cert:
+            kwargs["ssl_certfile"] = cert
+        key = getattr(args, "redis_tls_key", None)
+        if key:
+            kwargs["ssl_keyfile"] = key
+    return kwargs
 
 
 def broker_from_args(args: Any) -> RedisBroker:
@@ -289,7 +324,8 @@ def broker_from_args(args: Any) -> RedisBroker:
         host=args.redis_host,
         port=args.redis_port,
         db=args.redis_db,
-        password=args.redis_password,
+        password=args.redis_password or None,
+        **_redis_tls_kwargs(args),
     )
 
 
@@ -301,5 +337,6 @@ def async_broker_from_args(args: Any) -> Any:
         host=args.redis_host,
         port=args.redis_port,
         db=args.redis_db,
-        password=args.redis_password,
+        password=args.redis_password or None,
+        **_redis_tls_kwargs(args),
     )

turnstone/sdk/_base.py

@@ -25,12 +25,18 @@ class _BaseClient:
         token: str = "",
         timeout: float = 30.0,
         httpx_client: httpx.AsyncClient | None = None,
+        ca_cert: str | None = None,
+        client_cert: str | None = None,
+        client_key: str | None = None,
     ) -> None:
         """Initialise the client.
 
-        When *httpx_client* is provided it is used directly and *base_url*,
-        *token*, and *timeout* are ignored — configure headers and base URL
-        on the injected client instead.
+        When *httpx_client* is provided it is used directly and all other
+        params are ignored — configure headers, base URL, and TLS on the
+        injected client instead.
+
+        For mTLS, pass *ca_cert* (CA bundle path), *client_cert* and
+        *client_key* (client certificate + key paths).
         """
         headers: dict[str, str] = {}
         if token:
@@ -39,8 +45,19 @@ class _BaseClient:
             self._client = httpx_client
             self._owns_client = False
         else:
+            tls_kwargs: dict[str, Any] = {}
+            if ca_cert:
+                tls_kwargs["verify"] = ca_cert
+            if client_cert or client_key:
+                if not (client_cert and client_key):
+                    raise ValueError("Both client_cert and client_key must be provided for mTLS")
+                tls_kwargs["cert"] = (client_cert, client_key)
             self._client = httpx.AsyncClient(
-                base_url=base_url, timeout=timeout, headers=headers, follow_redirects=True
+                base_url=base_url,
+                timeout=timeout,
+                headers=headers,
+                follow_redirects=True,
+                **tls_kwargs,
             )
             self._owns_client = True
 

turnstone/sdk/console.py

@@ -76,8 +76,19 @@ class AsyncTurnstoneConsole(_BaseClient):
         token: str = "",
         timeout: float = 30.0,
         httpx_client: httpx.AsyncClient | None = None,
+        ca_cert: str | None = None,
+        client_cert: str | None = None,
+        client_key: str | None = None,
     ) -> None:
-        super().__init__(base_url=base_url, token=token, timeout=timeout, httpx_client=httpx_client)
+        super().__init__(
+            base_url=base_url,
+            token=token,
+            timeout=timeout,
+            httpx_client=httpx_client,
+            ca_cert=ca_cert,
+            client_cert=client_cert,
+            client_key=client_key,
+        )
 
     # -- cluster overview ----------------------------------------------------
 
@@ -847,9 +858,19 @@ class TurnstoneConsole:
         base_url: str = "http://localhost:8081",
         token: str = "",
         timeout: float = 30.0,
+        ca_cert: str | None = None,
+        client_cert: str | None = None,
+        client_key: str | None = None,
     ) -> None:
         self._runner = _SyncRunner()
-        self._async = AsyncTurnstoneConsole(base_url=base_url, token=token, timeout=timeout)
+        self._async = AsyncTurnstoneConsole(
+            base_url=base_url,
+            token=token,
+            timeout=timeout,
+            ca_cert=ca_cert,
+            client_cert=client_cert,
+            client_key=client_key,
+        )
 
     # -- cluster overview ----------------------------------------------------
 

turnstone/sdk/server.py

@@ -60,8 +60,19 @@ class AsyncTurnstoneServer(_BaseClient):
         token: str = "",
         timeout: float = 30.0,
         httpx_client: httpx.AsyncClient | None = None,
+        ca_cert: str | None = None,
+        client_cert: str | None = None,
+        client_key: str | None = None,
     ) -> None:
-        super().__init__(base_url=base_url, token=token, timeout=timeout, httpx_client=httpx_client)
+        super().__init__(
+            base_url=base_url,
+            token=token,
+            timeout=timeout,
+            httpx_client=httpx_client,
+            ca_cert=ca_cert,
+            client_cert=client_cert,
+            client_key=client_key,
+        )
 
     # -- workstream management -----------------------------------------------
 
@@ -395,9 +406,19 @@ class TurnstoneServer:
         base_url: str = "http://localhost:8080",
         token: str = "",
         timeout: float = 30.0,
+        ca_cert: str | None = None,
+        client_cert: str | None = None,
+        client_key: str | None = None,
     ) -> None:
         self._runner = _SyncRunner()
-        self._async = AsyncTurnstoneServer(base_url=base_url, token=token, timeout=timeout)
+        self._async = AsyncTurnstoneServer(
+            base_url=base_url,
+            token=token,
+            timeout=timeout,
+            ca_cert=ca_cert,
+            client_cert=client_cert,
+            client_key=client_key,
+        )
 
     # -- workstream management -----------------------------------------------
 

turnstone/server.py

@@ -18,7 +18,6 @@ import functools
 import json
 import os
 import queue
-import socket
 import sys
 import textwrap
 import threading
@@ -1851,8 +1850,19 @@ async def _lifespan(app: Starlette) -> AsyncGenerator[None, None]:
                     "OIDC JWKS prefetch failed — will retry on first login",
                     exc_info=True,
                 )
+    # TLS: start auto-renewal if client was initialized
+    tls_client = getattr(app.state, "tls_client", None)
+    if tls_client is not None:
+        try:
+            await tls_client.start_renewal()
+        except Exception:
+            log.warning("TLS auto-renewal startup failed", exc_info=True)
+
     yield
     # Shutdown
+    tls_client = getattr(app.state, "tls_client", None)
+    if tls_client is not None:
+        await tls_client.stop_renewal()
     if app.state.watch_runner:
         app.state.watch_runner.stop()
     if app.state.health_monitor:
@@ -2075,6 +2085,8 @@ def main() -> None:
 
     configure_logging_from_args(args, "server")
 
+    import socket
+
     # Initialize storage backend
     from turnstone.core.storage import init_storage
 
@@ -2086,7 +2098,17 @@ def main() -> None:
     db_pool_size = int(
         getattr(args, "db_pool_size", None) or os.environ.get("TURNSTONE_DB_POOL_SIZE", "2")
     )
-    init_storage(db_backend, path=db_path, url=db_url, pool_size=db_pool_size)
+    init_storage(
+        db_backend,
+        path=db_path,
+        url=db_url,
+        pool_size=db_pool_size,
+        sslmode=getattr(args, "db_sslmode", None) or os.environ.get("TURNSTONE_DB_SSLMODE", ""),
+        sslrootcert=getattr(args, "db_sslrootcert", None)
+        or os.environ.get("TURNSTONE_DB_SSLROOTCERT", ""),
+        sslcert=getattr(args, "db_sslcert", None) or os.environ.get("TURNSTONE_DB_SSLCERT", ""),
+        sslkey=getattr(args, "db_sslkey", None) or os.environ.get("TURNSTONE_DB_SSLKEY", ""),
+    )
 
     # Server-owned node identity (needed before ConfigStore for node_id scoping)
     def _default_node_id() -> str:
@@ -2428,11 +2450,56 @@ def main() -> None:
         )
     log.info("Max workstreams: %s", config_store.get("server.max_workstreams"))
     log.info("Node ID: %s", _node_id)
+
+    # TLS: request cert from console ACME if enabled
+    ssl_kwargs: dict[str, Any] = {}
+    if config_store.get("tls.enabled"):
+        try:
+            import asyncio
+
+            from turnstone.core.tls import TLSClient
+
+            hostname = socket.getfqdn()
+            hostnames = [hostname, "localhost", "127.0.0.1"]
+            # Only add bind host if it's a concrete address
+            if args.host not in ("0.0.0.0", "::", ""):
+                hostnames.append(args.host)
+            # Additional SANs from env (e.g. Docker service name)
+            extra_sans = os.environ.get("TURNSTONE_TLS_SANS", "")
+            if extra_sans:
+                hostnames.extend(s.strip() for s in extra_sans.split(",") if s.strip())
+            tls_client = TLSClient(
+                storage=get_storage(),
+                hostnames=hostnames,
+            )
+            asyncio.run(tls_client.init())
+            bundle = tls_client.bundle
+            if bundle:
+                from lacme.mtls import write_pem_files_persistent
+
+                pem_paths = write_pem_files_persistent(
+                    bundle,
+                    ca_pem=tls_client.ca_pem,
+                )
+                ssl_kwargs.update(pem_paths.as_uvicorn_kwargs())
+                if tls_client.ca_pem:
+                    import ssl as _ssl
+
+                    ssl_kwargs["ssl_cert_reqs"] = _ssl.CERT_REQUIRED
+
+                # Store client on app state for lifespan renewal
+                app.state.tls_client = tls_client
+                log.info("TLS enabled — serving HTTPS")
+            else:
+                log.warning("TLS enabled but no cert available")
+        except Exception:
+            log.warning("TLS initialization failed — serving plain HTTP", exc_info=True)
+
     print("Press Ctrl+C to stop.")
 
     import uvicorn
 
-    uvicorn.run(app, host=args.host, port=args.port, log_level="warning")
+    uvicorn.run(app, host=args.host, port=args.port, log_level="warning", **ssl_kwargs)
 
 
 if __name__ == "__main__":