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Allow engine.model to override top-level model per engine instance #54366

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Merged
pelikhan merged 13 commits into from
Aug 21, 2026
Merged

Allow engine.model to override top-level model per engine instance #54366

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09c354f
Initial plan
Copilot Aug 20, 2026
4dc17d0
Allow engine.model as a per-instance override, remove deprecation and…
Copilot Aug 20, 2026
d7e4e5c
Fix missing newline in regenerated frontmatter doc
Copilot Aug 20, 2026
661811e
Provide actionable engine JSON parse error
Copilot Aug 20, 2026
5cfdb11
Merge branch 'main' into copilot/fix-engine-model-deprecation
Copilot Aug 21, 2026
6266e5a
Merge branch 'main' into copilot/fix-engine-model-deprecation
github-actions[bot] Aug 21, 2026
e590bc5
Plan address outstanding review feedback
Copilot Aug 21, 2026
ac48331
Address engine model precedence review feedback
Copilot Aug 21, 2026
7602050
Assert split engine models in compiled output
Copilot Aug 21, 2026
5623b17
Parse split engine lock metadata in test
Copilot Aug 21, 2026
15eb0bf
Clarify split engine lock metadata assertions
Copilot Aug 21, 2026
501050d
Clarify default model guidance
Copilot Aug 21, 2026
b03a9c7
Merge branch 'main' into copilot/fix-engine-model-deprecation
pelikhan Aug 21, 2026
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Clarify default model guidance 
Co-authored-by: gh-aw-bot <259018956+gh-aw-bot@users.noreply.github.com>
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@gh-aw-bot
Copilot and gh-aw-bot authored Aug 21, 2026
commit 501050d465a36536f7cde200efc3ff534f16e9bd
2 changes: 1 addition & 1 deletion .github/aw/syntax-agentic.md
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Expand Up @@ -21,7 +21,7 @@ description: Agentic workflow specific frontmatter fields for GitHub Agentic Wor
- **`on.bots:`** - Bot identifiers allowed to trigger workflow regardless of role permissions (array; e.g. `[dependabot[bot], renovate[bot], github-actions[bot]]`). The bot must be active (installed) on the repository to trigger.
- **`strict:`** - Enable enhanced validation for production workflows (boolean, defaults to `true`; strongly recommended)
- Prefer `strict: true`; `strict: false` is dangerous, should be extremely rare, and must be carefully security reviewed before use
- **`model:`** - Default LLM model override for the agentic engine (string). A nested `engine.model` takes precedence for that engine instance. Accepts full model IDs (e.g. `claude-3-5-sonnet-20241022`, `gpt-5.4`) and aliases (e.g. `small`, `large`).
- **`model:`** - Default LLM model for the agentic engine (string). A nested `engine.model` takes precedence for that engine instance. Accepts full model IDs (e.g. `claude-3-5-sonnet-20241022`, `gpt-5.4`) and aliases (e.g. `small`, `large`).
- **`max-turns:`** - AWF turn cap applied consistently across all agentic engines (integer or expression, e.g. `${{ inputs.max-turns }}`). The engine-level `engine.max-turns` is a deprecated alias kept for backward compatibility — prefer this top-level field.
- **`max-runs:`** - Deprecated legacy alias for the AWF invocation cap (`apiProxy.maxRuns`, defaults to `500` when omitted). Use `max-turns` instead; run `gh aw fix` to migrate.
- **`max-ai-credits:`** - Per-run AI Credits (AIC) budget enforced by the AWF firewall (integer or `K`/`M` short-form string like `100M`; default `1000`). Set a negative value to disable enforcement and token steering. See [token-optimization.md](token-optimization.md).
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