[AW Top 10] 06 Replace unresolved model pins in workflows #70820

Priority 6/10 | 1 source issues | Impact 3/5 | Confidence 4/5 | Effort 2/5

One assignment, one coherent fix

Twenty-five workflow model pins such as gpt-5.4 variants do not resolve against the live Copilot catalogue and will fail at runtime.

Implementation scope

Update the listed workflow frontmatter model fields to currently available models or aliases, recompile the lock files, and add a check that fails when a pin is unavailable.

Done when

• The model inventory check reports no unresolved pins.
• Recompiled lock files reference only available models.

Why now

The inventory report is a deterministic catalogue comparison, so confidence is high, and several engine conformance workflows currently depend on the stale pins.

Unchanged AW sources close only after this summary is completed. Newer source activity and not-planned retirement do not trigger source closure. Assigned summaries are frozen; unassign to allow reclustering.

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