* fix(ci): stop codex lane cold-graph hangs
The side-question domain-policy test loaded the complete agent-harness tool graph inside a one-second readiness race, making the serial non-isolated Codex shard fail or stay silent under cold imports. Build the test's web_search marker and real web_fetch tool from the narrow implementation, then synchronize on turn startup before issuing the tool call. Cap each Codex test process at 12 files so CI gets bounded time-to-first-output as defense in depth.\n\nRefs #125839
* fix(test): keep codex web fetch fixture on sdk boundary
Load the real web_fetch factory on demand through the existing local-only plugin test runtime. This preserves the narrow cold-graph fix without letting a bundled plugin test reach into core internals.
* fix(agents): finalize guided creation safely
Run channel post-write hooks only after config publication, defer portable auth copying until agent creation succeeds without overwriting newer credentials, and provision existing workspaces before publishing updates.
Keep JSON-only guided creation interactive while routing wizard output to stderr so stdout remains one machine-readable summary.
* fix(terminal): preserve note call signature
* fix(agents): pass committed config to setup hooks
* ci: split heavy codex changed-test shards
Cap non-isolated Codex extension processes at 20 files so 4-vCPU changed-target jobs do not starve real-time watches or hit the no-output watchdog.
* test(ci): align codex shard cap fixture
* docs(cli): clarify agents add JSON mode
Hosted CI runners restored the boundary-artifact cache and rebuilt it anyway: fresh checkouts re-stamp every input mtime, so mtime freshness never passed. Stamp files now record the input content digest and byte-identical inputs skip the rebuild (~60s saved per hosted lint/boundary job, 0.17s verify). Telegram CI shards pack ten files per job instead of five now that per-file import cost is back to seconds (#123607), halving the ~42-job fanout.
Five-file Telegram jobs finished the first file, then isolate re-imported the next graph in silence until the 300s watchdog killed the worker. Recycle the Vitest process after each file and keep five files per CI job.
Bound Telegram extension tests to five files per Vitest process across explicit config, directory, and full-suite routes while preserving serial isolated execution.
Co-authored-by: Ayaan Zaidi <hi@obviy.us>