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fix(pi-claude-cli): rewrite bare custom tool refs in system prompt to MCP names

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Triage system prompts read "MUST call fn_review_spec()" but Sonnet 4.6 routed
through pi-claude-cli writes PROMPT.md and silently skips the call — even with
the addendum explaining the deferred-tool protocol. Confirmed by the FN-2564
agent log: model called other MCP tools (fn_memory_search, fn_task_list) fine
but consistently never reached fn_review_spec, leaving triage looping on
"fn_review_spec was never called" and falling back to zai/glm-5.1 every time.

Rewrite bare `fn_*` (and any non-built-in custom tool name) references in the
system prompt to their `mcp__custom-tools__fn_*` form before sending. The
prompt now literally says "call mcp__custom-tools__fn_review_spec()" so the
model has no inference step, and the deferred-tool reminder Claude Code injects
matches verbatim. Word-boundary safe (won't touch fn_review_specifier) and
idempotent (won't double-prefix already-MCP-named occurrences).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Fusion
2026-04-25 16:50:30 -07:00
committed by gsxdsm
parent 5e0004cca2
commit 7e05a200b9
2 changed files with 11 additions and 0 deletions
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.changeset/fix-init-git-detection-timeout.md Normal file
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"@runfusion/fusion": patch
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Speed up `fn init` project-name detection by skipping git remote lookup when the target directory is not a git repository. This avoids unnecessary subprocess work and reduces timeout risk in test/CI environments.