The system-prompt directive layer and the briefing block both opened
with "FIRST ACTION REQUIRED: run ToolSearch to activate deferred
Edit/Write". That premise is false: per Claude Code 2.1.114, ToolSearch
gates only deferred MCP tools, never built-ins — and it is not even a
callable tool in the agent runtime. Built-ins are loaded at spawn via
the `--tools` flag and gated solely by the per-role permission rules
(the actual Edit/Write breakage was the global Write(*)/Edit(*) deny +
single-slash path, fixed in c0ba335). So weak models dutifully chased a
nonexistent ToolSearch, concluded Edit/Write were unavailable, and
rewrote whole files via destructive shell redirection.
Both touch points now affirm the role's built-in tools are loaded and
ready, tell the agent NOT to call ToolSearch, and (for authoring roles)
explicitly steer away from whole-file shell redirection — directly
countering the clobber behaviour. Role prompt files (developer,
cell_pm, main_pm, board) updated to match. Dead
_read_tool_load_from_role_prompt (no callers) removed. Directive tests
rewritten to lock the corrected behaviour.
Smoke-7: be-dev-1 hit "Edit exists but is not enabled in this context."
Claude Code v2.1.69+ defers built-in tools (Edit, Write, Read, etc.)
behind a ToolSearch call. Weak models (minimax-m2.7) skip soft
directives buried in the briefing.
Also: 4 role prompts (developer, cell_pm, main_pm, board) claimed
"no ToolSearch needed" — a lie that compounds the problem. The
manifest registers MCP tools; built-in tools are still deferred.
Fix: compose_prompt now prepends a tool-load directive layer as the
FIRST block in the system prompt. It names the exact ToolSearch call
the role needs:
- developer/documenter: Read, Bash, Grep, Glob, Task, TodoWrite, Edit, Write
- qa/pm/board: Read, Bash, Grep, Glob, Task, TodoWrite (no Edit/Write)
The directive includes the failure mode it prevents so the model
understands what skipping the call causes.
Updated role-prompt lines that lied about ToolSearch.
7 new tests pin: directive is the first block; developer/documenter
get Edit/Write; qa/pm don't; failure-mode message is present.
Renn F