Codex stop-time review caught a contradiction: elements.md taught
"emit one <op_tool> per component" while T_TOOL_CALL_INSTRUCTIONS
explicitly forbade it ("Respond with one tag, nothing else" + "Do
not combine multiple tags"). Live models were probably reading the
later, more authoritative trailing instructions and dropping back to
batch_design — which matches ab-v3's 0/25 composite-T multi-tool
runs even though the cookbook had recipes.
Rewrites the T output-format block to:
- declare "one or more <op_tool> tags" up front
- add an explicit COMPOSITE clause showing chained tags for
multi-component briefs (settings panel / team list / audit feed /
onboarding) with a 3-tag worked example
- keep the FALLBACK clause for batch_design when no element tool fits
- keep the "no prose between tags" rule
Tests now assert the multi-tool marker is present in every T variant
AND the forbidding phrases ("one tag, nothing else", "Do not combine
multiple tags") are GONE — the regression guard Codex effectively
asked for. Also pulls in an oxfmt auto-format on the measurement
helper that landed unformatted in a3c5bf2d.
b7e6097da5