auto-configure COPILOT_PROVIDER_WIRE_API from model catalog by Copilot · Pull Request #46156 · github/gh-aw

Copilot · 2026-07-17T06:41:39Z

Models like gpt-5-mini, gpt-5.x, and mai-code-1-flash-picker require the OpenAI Responses API (wire_api: responses); the Copilot CLI defaults to completions, causing HTTP 400 failures. Since the model may be resolved from a GitHub org variable at runtime, wire API selection must happen before Copilot CLI launches.

Changes

pkg/workflow/data/wire_api_models.json — embedded catalog of wire_api values for github-copilot provider models, extracted from pkg/cli/data/models.json
pkg/workflow/copilot_wire_api.go — model→wire_api lookup + buildCopilotWireAPIResolutionScript() that generates a shell case statement for runtime resolution
copilot_engine_execution.go:
- addCopilotModelEnv: auto-sets COPILOT_PROVIDER_WIRE_API=responses in the env block for statically-configured models with wire_api: responses; user engine.env overrides win (applied after)
- buildCopilotAWFPathSetup / buildCopilotDirectCommand: injects a shell fragment so runtime-resolved models (org variable) also get the correct wire API before Copilot starts
smoke-copilot-mai.md: removes manual COPILOT_PROVIDER_WIRE_API: responses — now auto-configured

Runtime resolution (dynamic model case)

if [ -z "${COPILOT_PROVIDER_WIRE_API:-}" ]; then
  case "${COPILOT_MODEL:-}" in
    gpt-5-mini|gpt-5.2|...|mai-code-1-flash-picker)
      export COPILOT_PROVIDER_WIRE_API=responses
      ;;
    gemini-2.5-pro|...|raptor-mini)
      export COPILOT_PROVIDER_WIRE_API=completions
      ;;
  esac
fi

The [ -z "${COPILOT_PROVIDER_WIRE_API:-}" ] guard ensures explicit engine.env values always take precedence. Unknown models (e.g. BYOK custom deployments) are left unset, requiring manual configuration as before.

- Add pkg/workflow/data/wire_api_models.json with github-copilot model wire_api mappings (responses/completions), derived from pkg/cli/data/models.json - Add pkg/workflow/copilot_wire_api.go: lookup function + shell case-statement generator for runtime resolution before Copilot CLI launches - Update addCopilotModelEnv: auto-set COPILOT_PROVIDER_WIRE_API=responses in the env block when a static model has wire_api=responses in the catalog - Update buildCopilotAWFPathSetup + buildCopilotDirectCommand: inject the wire_api case-statement into PathSetup so the dynamic (org-variable) model case is also handled at runtime before copilot starts - Remove manual COPILOT_PROVIDER_WIRE_API: responses from smoke-copilot-mai.md since mai-code-1-flash-picker is now auto-configured - Update golden files and recompile all 258 workflow lock files Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>

pelikhan · 2026-07-17T06:45:03Z

@copilot configuration should part of the copilot harness in JavaScript

Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>

github-actions · 2026-07-17T07:12:50Z

🤖 PR Triage

Field	Value
Category	`feature`
Risk	`medium`
Score	42/100 (impact:20, urgency:10, quality:12)
Action	`defer`

Rationale: DRAFT — auto-configure COPILOT_PROVIDER_WIRE_API from model catalog. Valuable fix for newer model wire API selection (HTTP 400 on gpt-5-mini etc.) but no CI yet. Defer until undrafted.

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Copilot · 2026-07-17T07:14:12Z

@copilot configuration should part of the copilot harness in JavaScript

Done in commit c17bd06. The wire API auto-configuration is now in copilot_harness.cjs via a new applyCopilotWireAPI() function that reads wire_api from the existing models.json catalog (already contains wire_api entries for all github-copilot provider models). It runs after applyCopilotModelAliasResolution() and respects user-explicit COPILOT_PROVIDER_WIRE_API values. The Go files (copilot_wire_api.go, wire_api_models.json) and the shell-script injection in copilot_engine_execution.go have been removed.

pelikhan · 2026-07-17T07:19:46Z

@copilot merge main and recompile

pelikhan · 2026-07-17T07:19:56Z

/smoke-copilot-mai

github-actions · 2026-07-17T07:20:33Z

✅ Smoke Copilot MAI completed successfully!

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Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>

…ted-code-config Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>

Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>

Copilot · 2026-07-17T07:35:02Z

@copilot merge main and recompile

Done in the latest commit — merged main and recompiled all 258 workflows (0 errors).

pelikhan · 2026-07-17T08:17:33Z

@copilot apply fix to detection and evals jobs

See https://github.com/github/gh-aw/actions/runs/29562782974/job/87829368417#step:17:1

Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>

…jobs Root cause: GH_AW_MODELS_JSON_PATH is exported in the path setup script pointing to /tmp/gh-aw/models.json (the merged activation-artifact catalog). Detection and evals jobs don't download the activation artifact, so that file doesn't exist. loadModelsJson() used the override path, got ENOENT, returned null, and applyCopilotWireAPI silently returned without setting COPILOT_PROVIDER_WIRE_API. Fix: extract parseModelsJsonFile() helper and have loadModelsJson() fall back to DEFAULT_MODELS_PATH (bundled models.json deployed alongside the module) when GH_AW_MODELS_JSON_PATH is set but the file doesn't exist. The merged catalog is a superset of the bundled one, so wire_api entries are always present in the fallback. Also log when COPILOT_PROVIDER_WIRE_API is already set in applyCopilotWireAPI to make future ambient-override issues diagnosable from CI logs. Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>

Copilot · 2026-07-17T09:07:18Z

@copilot apply fix to detection and evals jobs

See https://github.com/github/gh-aw/actions/runs/29562782974/job/87829368417#step:17:1

Fixed in the latest commit.

Root cause: GH_AW_MODELS_JSON_PATH is exported in the path setup script pointing to /tmp/gh-aw/models.json (the merged catalog from the activation artifact). Detection and evals jobs don't download the activation artifact, so that file doesn't exist. loadModelsJson() used the override path, got ENOENT, returned null, and applyCopilotWireAPI silently returned without setting COPILOT_PROVIDER_WIRE_API=responses.

Fix (model_costs.cjs): extracted parseModelsJsonFile() helper and loadModelsJson() now falls back to the bundled models.json (always present alongside the module at ${RUNNER_TEMP}/gh-aw/actions/) when GH_AW_MODELS_JSON_PATH is set but the file doesn't exist. The merged catalog is a superset of the bundled one, so wire_api entries are always present in the fallback. Also added a log line in applyCopilotWireAPI when COPILOT_PROVIDER_WIRE_API is already set, to make future ambient-override issues diagnosable from CI logs.

pelikhan · 2026-07-17T09:18:48Z

/smoke-mai

github-actions · 2026-07-17T09:19:16Z

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Copilot

Pull request overview

Automatically selects the Copilot wire API from the model catalog before launch.

Changes:

Adds runtime wire API resolution and tests.
Falls back to the bundled model catalog.
Removes the MAI workaround and recompiles workflows.

Show a summary per file

File	Description
`actions/setup/js/model_costs.test.cjs`	Tests catalog fallback.
`actions/setup/js/model_costs.cjs`	Adds parsing and fallback logic.
`actions/setup/js/copilot_harness.test.cjs`	Tests wire API selection.
`actions/setup/js/copilot_harness.cjs`	Configures the wire API before launch.
`.github/workflows/smoke-copilot-mai.md`	Removes manual configuration.
`.github/workflows/smoke-copilot-mai.lock.yml`	Recompiles the smoke workflow.
`.github/workflows/skillet.lock.yml`	Refreshes generated action metadata.
`.github/workflows/release.lock.yml`	Refreshes generated action metadata.
`.github/workflows/hourly-ci-cleaner.lock.yml`	Refreshes generated action metadata.
`.github/workflows/avenger.lock.yml`	Refreshes generated action metadata.

Review details

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Files reviewed: 10/10 changed files
Comments generated: 1
Review effort level: Medium

+  const normalizedModelName = modelName.toLowerCase();
+  for (const [key, value] of Object.entries(models)) {
+    if (key.toLowerCase() === normalizedModelName) {


gh-aw-bot · 2026-07-17T09:30:44Z

@copilot please run the pr-finisher skill, address the unresolved review feedback, and rerun checks once the branch is up to date.

Unresolved review threads:

copilot-pull-request-reviewer: auto-configure COPILOT_PROVIDER_WIRE_API from model catalog #46156 (comment)

Generated by PR Sous Chef: https://github.com/github/gh-aw/actions/runs/29569653113

Generated by 👨‍🍳 PR Sous Chef · 5.53 AIC · ⌖ 5.1 AIC · ⊞ 6K · ◷
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Co-authored-by: gh-aw-bot <259018956+gh-aw-bot@users.noreply.github.com>

Copilot · 2026-07-17T09:46:44Z

@copilot please run the pr-finisher skill, address the unresolved review feedback, and rerun checks once the branch is up to date.

Unresolved review threads:...

Fixed in the latest commit. applyCopilotWireAPI now strips query parameters (e.g. gpt-5-mini?effort=high → gpt-5-mini) before the catalog lookup, so effort-parameterized model names correctly resolve to their wire API. A test case for this is included.

pelikhan · 2026-07-17T11:19:10Z

/smoke-copilot-mai

github-actions · 2026-07-17T11:19:34Z

✅ Smoke Copilot MAI completed successfully!

github-actions · 2026-07-17T11:27:52Z

Recent commits focus on refactoring, linting, and threat-detection work, plus workflow/CLI and sandbox/security fixes.
There are also docs/community and release-automation updates.
Overall status: PASS

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Copilot AI assigned Copilot and pelikhan Jul 17, 2026

Copilot created this pull request from a session on behalf of pelikhan July 17, 2026 06:42 View session

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Copilot AI and others added 2 commits July 17, 2026 06:54

initial plan checkpoint

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Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>

move COPILOT_PROVIDER_WIRE_API auto-config to copilot_harness.cjs

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github-actions Bot added pr-action:defer pr-agent:copilot pr-priority:medium pr-risk:medium pr-type:feature labels Jul 17, 2026

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Copilot AI and others added 2 commits July 17, 2026 07:27

planning: merge main and recompile workflows

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Merge remote-tracking branch 'origin/main' into copilot/update-genera…

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merge main and recompile workflows

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Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>

Copilot finished work on behalf of pelikhan July 17, 2026 07:35

Copilot started work on behalf of pelikhan July 17, 2026 08:18 View session

Copilot AI and others added 2 commits July 17, 2026 08:55

planning: apply wire API fix to detection and evals jobs

a19075e

Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>

Copilot finished work on behalf of pelikhan July 17, 2026 09:07

pelikhan marked this pull request as ready for review July 17, 2026 09:18

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Comment thread actions/setup/js/copilot_harness.cjs Outdated

Comment on lines +333 to +335

const normalizedModelName = modelName.toLowerCase();

for (const [key, value] of Object.entries(models)) {

if (key.toLowerCase() === normalizedModelName) {

github-actions Bot mentioned this pull request Jul 17, 2026

[pr-sous-chef] Run report — 0 nudged, 0 skipped #46103

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Copilot started work on behalf of gh-aw-bot July 17, 2026 09:31 View session

fix: strip query params from model name before wire API catalog lookup

5a5eca6

Co-authored-by: gh-aw-bot <259018956+gh-aw-bot@users.noreply.github.com>

Copilot finished work on behalf of gh-aw-bot July 17, 2026 09:47

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Runtime resolution (dynamic model case)

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