The Diffs plugin named the `message` tool from three model-visible surfaces:
the guidance it injects via before_prompt_build, the mode=file tool result,
and its SKILL.md. `disableMessageTool` removes that tool in eight production
paths (subagent spawn, system agent, worker runtime, both skills-workshop
reviews, companion-ask, restart sentinel, active-memory recall), so agents in
those sessions were told to call a tool absent from their tool list.
The same surfaces plus the `diffs` tool description named the separately
gated Canvas plugin — SKILL.md through `canvas present` / `canvas navigate`,
the others through "for canvas use".
All of them now describe the capability instead of naming the tool, per the
root AGENTS.md rule that descriptions never statically name tools from other
toolsets. The two pinned assertions keep their snapshots and now also assert
the invariant directly.
Co-authored-by: Vincent Koc <vincentkoc@ieee.org>
* fix(diffs): share SSR preloads and repair language-pack hydration
Render viewer and file documents from a single @pierre/diffs SSR preload
per file (mode=both previously ran the full diff+highlight pipeline
twice; 651ms -> 303ms on an 8-file patch), apply the file-mode font bump
as a document-level override, and keep hydration payloads
variant-faithful.
Fix the language-pack runtime downgrading pack-only languages to plain
text at hydration by defining a per-target build flag and forwarding it
to payload normalization.
Also: case-insensitive language hints, identical before/after
short-circuit with details.changed, patch input failures classified as
tool input errors, canonical config values now win over deprecated
aliases, hash-pinned viewer runtime served immutable, truthful
browser-vs-render errors, timing-safe artifact token compare, unref
idle browser timer.
* docs(changelog): link diffs rendering entry to PR
* test(diffs): narrow manifest validation results before value access
* test(tooling): allowlist diffs viewer-client define suppression
Masato Hoshino