Treat auto as a first-class Copilot model id

[Copilot]

This updates model: auto from a generic alias-only concept to a proper Copilot model id. When a workflow selects auto, gh-aw now preserves COPILOT_MODEL=auto through compilation and runtime while keeping pricing aligned with Sonnet 4.6.

• Model identity

  • Add auto to the built-in model alias map as auto -> large so AWF alias metadata and fallback chains understand it.
  • Preserve literal auto during Copilot-side model resolution instead of eagerly collapsing it to a concrete model.

• Pricing / accounting

  • Add auto to both embedded models.json catalogs with the same pricing as claude-sonnet-4.6.
  • This keeps AI credit / cost accounting consistent when runs report model: auto.

• Workflow surface

  • Update smoke-copilot to use top-level model: auto.
  • Regenerate the compiled workflow output so the emitted env wiring now carries GH_AW_INFO_MODEL: "auto" and COPILOT_MODEL: auto.

• Fixtures / expectations

  • Extend alias and pricing tests for auto.
  • Refresh generated wasm goldens to match the new built-in alias set and compiled Copilot model output.

Example:

name: Smoke Copilot
model: auto
engine:
  id: copilot

Compiled result now preserves the special Copilot mode instead of resolving it away:

GH_AW_INFO_MODEL: "auto"
COPILOT_MODEL: auto

[pelikhan]

@copilot auto is a know model id for the copilot/github provider. Not a large alias.

[Copilot]

@copilot auto is a know model id for the copilot/github provider. Not a large alias.

Addressed in 177358d.

[pelikhan]

/smoke-copilot

[github-actions]

📰 BREAKING: Smoke Copilot is now investigating this issue comment. Sources say the story is developing...

[pelikhan]

@copilot make sure the auto is in the model list and recompile

See error https://github.com/github/gh-aw/actions/runs/29727177706/job/88303175905#step:48:1

[Copilot]

@copilot make sure the auto is in the model list and recompile

See error https://github.com/github/gh-aw/actions/runs/29727177706/job/88303175905#step:48:1

Addressed in 73e9001. Confirmed auto is present in the bundled model catalogs, re-ran make recompile (no additional generated changes), and added JS regression coverage for the action-side model catalog used by smoke-copilot.

[pelikhan]

@copilot investigate why awf refuses "auto" as a model id

[Copilot]

@copilot investigate why awf refuses "auto" as a model id

Fixed in bfff4cb. The issue was that AWF’s compiled apiProxy.models map did not include auto, so AWF could reject model: auto even though the Copilot runtime preserved it. auto is now emitted as an exact Copilot model id (copilot/auto), and the affected compiled workflows and WASM goldens were refreshed.

[pelikhan]

/smoke-copilot

[github-actions]

📰 BREAKING: Smoke Copilot is now investigating this issue comment. Sources say the story is developing...

[pelikhan]

@copilot set auto pricing to Sonnet 4.6 level in models.json

https://github.com/github/gh-aw/actions/runs/29734364547/job/88326241059#step:48:1

[Copilot]

@copilot set auto pricing to Sonnet 4.6 level in models.json

https://github.com/github/gh-aw/actions/runs/29734364547/job/88326241059#step:48:1

Handled in 8289bb1. auto already matches claude-sonnet-4.6 in both bundled models.json catalogs, and the targeted JS and Go pricing tests pass locally.

[pelikhan]

/smoke-copilot

[github-actions]

📰 BREAKING: Smoke Copilot is now investigating this issue comment. Sources say the story is developing...

[github-actions]

🤖 PR Triage

Field	Value
Category	feature
Risk	🟡 medium
Priority Score	55 / 100
Action	⏸ defer

Score breakdown: impact 28 + urgency 15 + quality 12

Rationale: model: auto as first-class Copilot model ID. Draft PR, 2 CI failures. Large lock.yml churn (277 files, bulk recompile). Defer until undrafted and CI passes.

Run §29743972799

Generated by 🔧 PR Triage Agent · 47.4 AIC · ⌖ 5.32 AIC · ⊞ 5.6K · ◷

[github-actions]

🤖 PR Triage (updated)

Field	Value
Category	feature
Risk	🟡 medium
Priority Score	48/100
Recommended Action	defer

Score breakdown: impact 22 + urgency 14 + quality 12

Treat auto as a first-class Copilot model id. Draft. CI shows agent job failures. Defer until CI is green and author undrafts.

Generated by 🔧 PR Triage Agent · 34.3 AIC · ⌖ 7.71 AIC · ⊞ 5.6K · ◷

[pelikhan]

@copilot set the default API pricing

See https://github.com/github/gh-aw/actions/runs/29742523537/job/88352626832#step:48:1

[Copilot]

@copilot set the default API pricing

See https://github.com/github/gh-aw/actions/runs/29742523537/job/88352626832#step:48:1

Addressed in 07aebdc. AWF config generation now emits apiProxy.defaultAiCreditsPricing for Copilot auto at Sonnet 4.6 pricing, and smoke-copilot.lock.yml was recompiled with the new fallback.

[github-actions]

🔍 PR Triage — Run §29791496271

Field	Value
Category	feature
Risk	🟡 medium
Score	42/100 (impact 22 + urgency 10 + quality 10)
Action	⏸ defer (DRAFT)

Rationale: Valuable model-alias improvement but non-urgent. DRAFT with 279 changed files (mass lock regen). Undraft when ready for dedicated review cycle.

Generated by 🔧 PR Triage Agent · 40.1 AIC · ⌖ 6.65 AIC · ⊞ 5.6K · ◷