f6746eb91c
The earlier T instruction split tool selection into PRIMARY / COMPOSITE
(element tools) and FALLBACK (batch_design). FALLBACK was scoped
"when no element tool fits a given component shape" — implying you
could mix per-component. But output-parser.ts silently drops every
batch_design tag whenever any element call is also present (filter
ELEMENT_TOOL_NAME_RE then return). A mixed response
<op_tool>{"name":"add_section_header_v0",...}</op_tool>
<op_tool>{"name":"batch_design", ...scaffolding...}</op_tool>
would lose the batch_design half and only run the element call —
the brief is half-applied without anyone noticing. Codex stop-time
review caught the mismatch.
Reframes T as a binary choice:
- STRATEGY A: every component fits an add_*_v0 tool — emit one tag
per component
- STRATEGY B: at least one component needs batch_design — emit a
SINGLE batch_design covering the whole brief
Plus an explicit "Do not mix Strategy A and Strategy B" guard line.
Tests assert both strategy markers are present in every T variant
and the dropped per-component-fallback phrase is gone.
The elements.md cookbook still teaches batch_design + element tool
composition for real MCP multi-round usage; the corpus T arm is
single-shot so the trailing T_TOOL_CALL_INSTRUCTIONS overrides via
"last instruction wins".
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|---|---|---|
| .. | ||
| __tests__ | ||
| clients | ||
| apply.ts | ||
| build-prompt.ts | ||
| measure-prompt-sizes.ts | ||
| real-model.ts | ||
| run.ts | ||
| stub-model.ts | ||
| write-report.ts | ||