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fix(nightly-schema-updater): switch model from deprecated claude-sonnet-4.6 to gpt-5.4#7682
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[WIP] Fix nightly schema updater configuration issue
fix(nightly-schema-updater): switch model from deprecated claude-sonnet-4.6 to gpt-5.4
Jun 17, 2026
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Pull request overview
This PR updates the Nightly Schema Updater agentic workflow to avoid failures caused by a deprecated Copilot model name by pinning and defaulting the workflow’s model to gpt-5.4.
Changes:
- Added an explicit
engine:configuration in the source workflow (.md) to pinmodel: gpt-5.4. - Updated the compiled lock workflow (
.lock.yml) to change the fallback model fromclaude-sonnet-4.6togpt-5.4for both info reporting and Copilot execution.
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The Nightly Schema Updater (and all other workflows compiled with gh-aw v0.79.6) hard-coded
claude-sonnet-4.6as the fallback model. The Copilot API stopped accepting this model name, causing a400 The requested model is not supportedfailure. gh-aw's own workflows have since moved togpt-5.4with Copilot CLI v1.0.63.Changes
nightly-schema-updater.md— Added explicitengine:block pinningmodel: gpt-5.4so the source is authoritative and recompilation won't regress.nightly-schema-updater.lock.yml— Updated both model fallback references fromclaude-sonnet-4.6→gpt-5.4:gpt-5.4is the first entry in the AWF proxy'sagentmodel resolution list and is the current default in gh-aw's own compiled workflows. The lock file'sfrontmatter_hashwill be stale until the nightly-workflow-compiler runs a fullgh aw upgrade; this does not block execution.