Pin Duplicate Code Detector to priced Copilot model to avoid unknown-model AI credit failures by Copilot · Pull Request #4942 · github/gh-aw-firewall

Copilot · 2026-06-14T16:57:15Z

Duplicate Code Detector intermittently failed under max-ai-credits because model selection could resolve to an unpriced/unknown model, which triggers AWF API-proxy rejection. This change hard-pins the workflow to a known priced model so AI credit enforcement remains deterministic.

Root-cause containment
- Set explicit engine config in workflow source:
  - engine.id: copilot
  - engine.model: gpt-5.4-mini
- Removes dependence on repo/org model vars for this workflow’s runtime model selection.
Compiled workflow sync
- Updated the generated lockfile to reflect the same fixed model at runtime injection points:
  - GH_AW_INFO_MODEL
  - COPILOT_MODEL
  - GH_AW_ENGINE_MODEL
- Refreshed frontmatter hash metadata accordingly.
Resulting behavior
- Duplicate Code Detector now runs against a model present in pricing tables, preventing unknown_model_ai_credits aborts when max-ai-credits is active.

# .github/workflows/duplicate-code-detector.md
engine:
  id: copilot
  model: gpt-5.4-mini

github-actions · 2026-06-14T17:20:02Z

✅ Coverage Check Passed

Overall Coverage

Metric	Base	PR	Delta
Lines	96.60%	96.64%	📈 +0.04%
Statements	96.47%	96.51%	📈 +0.04%
Functions	98.80%	98.80%	➡️ +0.00%
Branches	91.18%	91.21%	📈 +0.03%

📁 Per-file Coverage Changes (1 files)

File	Lines (Before → After)	Statements (Before → After)
`src/workdir-setup.ts`	92.6% → 94.4% (+1.85%)	92.6% → 94.4% (+1.85%)

Coverage comparison generated by scripts/ci/compare-coverage.ts

Copilot

Pull request overview

Pins the Duplicate Code Detector agentic workflow to a known-priced Copilot model (gpt-5.4-mini) so runs remain deterministic and don’t intermittently fail under max-ai-credits due to unknown/unpriced model resolution.

Changes:

Add explicit engine.id / engine.model to .github/workflows/duplicate-code-detector.md.
Update .github/workflows/duplicate-code-detector.lock.yml runtime injection points (GH_AW_INFO_MODEL, COPILOT_MODEL, GH_AW_ENGINE_MODEL) to the pinned model.
Refresh lockfile metadata hash to match updated frontmatter.

Show a summary per file

File	Description
.github/workflows/duplicate-code-detector.md	Adds an explicit Copilot engine + fixed model to avoid model-selection drift under AI credit enforcement.
.github/workflows/duplicate-code-detector.lock.yml	Syncs the compiled workflow’s model-related env vars (and metadata hash) to the pinned model.

Copilot's findings

Tip

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Files reviewed: 2/2 changed files
Comments generated: 1

github-actions · 2026-06-14T17:27:15Z

@Copilot @lpcox

Running in direct BYOK mode (COPILOT_PROVIDER_API_KEY + COPILOT_PROVIDER_BASE_URL) via api-proxy → Azure OpenAI (Foundry, o4-mini-aw)

GitHub MCP connectivity: ✅
GitHub.com connectivity: ✅
File write/read test: ✅
BYOK inference test: ✅

Overall: PASS

🔑 BYOK (AOAI api-key) report filed by Smoke Copilot BYOK AOAI (api-key)

The compiler now correctly emits agent_model:gpt-5.4-mini in the metadata header, consistent with other pinned-model workflows. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

github-actions · 2026-06-14T19:18:50Z

🏗️ Build Test Suite Results

Ecosystem	Project	Build/Install	Tests	Status
Bun	elysia	✅	1/1 passed	✅ PASS
Bun	hono	✅	1/1 passed	✅ PASS
C++	fmt	✅	N/A	✅ PASS
C++	json	✅	N/A	✅ PASS
Deno	oak	N/A	1/1 passed	✅ PASS
Deno	std	N/A	1/1 passed	✅ PASS
.NET	hello-world	✅	N/A	✅ PASS
.NET	json-parse	✅	N/A	✅ PASS
Go	color	✅	1/1 passed	✅ PASS
Go	env	✅	1/1 passed	✅ PASS
Go	uuid	✅	1/1 passed	✅ PASS
Java	gson	✅	1/1 passed	✅ PASS
Java	caffeine	✅	1/1 passed	✅ PASS
Node.js	clsx	✅	all passed	✅ PASS
Node.js	execa	✅	all passed	✅ PASS
Node.js	p-limit	✅	all passed	✅ PASS
Rust	fd	✅	1/1 passed	✅ PASS
Rust	zoxide	✅	1/1 passed	✅ PASS

Overall: 8/8 ecosystems passed — ✅ PASS

Environment Details

Bun 1.3.14
C++ GCC 13.3.0 / CMake
Deno 2.8.3
.NET 8.0 (net8.0)
Go 1.22.12
Java OpenJDK 21.0.11 (Temurin) / Maven 3.9.16
Node.js v22.22.3 / npm 10.9.8
Rust 1.96.0 / Cargo 1.96.0

Generated by Build Test Suite for issue #4942 · ◷

github-actions · 2026-06-14T19:23:40Z

Smoke Test Results: Copilot BYOK (Direct Mode)

✅ MCP Connectivity - GitHub API working
✅ GitHub.com Connectivity - HTTP 200
✅ File Write/Read - Verified
✅ BYOK Inference Path - Active (agent → api-proxy → api.githubcopilot.com)

Status: PASS — Running in direct BYOK mode via COPILOT_PROVIDER_API_KEY

🔑 BYOK report filed by Smoke Copilot BYOK

github-actions · 2026-06-14T19:23:50Z

🔬 Smoke Test Results — PR #4942

"Pin Duplicate Code Detector to priced Copilot model..."
Author: @Copilot | Assignees: @lpcox @Copilot

Test	Result
GitHub MCP connectivity	✅
GitHub.com HTTP connectivity	❌ (pre-step data unavailable — template vars unresolved)
File write/read	❌ (pre-step data unavailable — template vars unresolved)

Overall: FAIL — Pre-computed step outputs were not injected (raw ${{ }} expressions in task input).

📰 BREAKING: Report filed by Smoke Copilot

github-actions · 2026-06-14T19:24:01Z

🔥 Smoke Test: Copilot PAT — PASS

Test	Result
GitHub MCP connectivity	✅
GitHub.com HTTP	✅ 200
File write/read	✅

PR: Pin Duplicate Code Detector to priced Copilot model to avoid unknown-model AI credit failures
Author: @Copilot | Assignees: @lpcox @Copilot
Auth mode: PAT (COPILOT_GITHUB_TOKEN)

🔑 PAT report filed by Smoke Copilot PAT

github-actions · 2026-06-14T19:24:13Z

PRs: Refactor OpenAI BYOK base URL parsing to reuse shared proxy URL normalization
PRs: refactor(api-proxy): split proxy-request.js into http-client.js and body-handler.js
GitHub MCP: ✅
SafeInputs GH CLI: ✅
Playwright: ✅
File write: ✅
Build: ✅
Overall: PASS

Warning

Firewall blocked 1 domain

The following domain was blocked by the firewall during workflow execution:

registry.npmjs.org

To allow these domains, add them to the network.allowed list in your workflow frontmatter:

network:
  allowed:
    - defaults
    - "registry.npmjs.org"

See Network Configuration for more information.

🔮 The oracle has spoken through Smoke Codex

github-actions · 2026-06-14T19:28:35Z

Smoke Test: GitHub Actions Services Connectivity

Check	Result
Redis PING (`host.docker.internal:6379`)	❌ timeout
PostgreSQL pg_isready (`host.docker.internal:5432`)	❌ no response
PostgreSQL `SELECT 1` (`smoketest` db)	❌ timeout

Overall: FAIL — Service containers are not reachable from this environment. Neither host.docker.internal (172.17.0.1) nor localhost responded on ports 6379 or 5432. Services may not be configured as job-level service containers in the workflow.

🔌 Service connectivity validated by Smoke Services

github-actions · 2026-06-14T19:31:37Z

Smoke Test: Gemini Engine Validation

GitHub MCP Testing: ❌ (Tool not found)
GitHub.com Connectivity: ❌ (Blocked by Squid)
File Writing Testing: ✅
Bash Tool Testing: ✅

Overall Status: FAIL

Note: Only one PR found in shallow log:

Add interactive workflow designer agent (Add interactive workflow designer agent #4910)

Warning

Firewall blocked 1 domain

The following domain was blocked by the firewall during workflow execution:

localhost

To allow these domains, add them to the network.allowed list in your workflow frontmatter:

network:
  allowed:
    - defaults
    - "localhost"

See Network Configuration for more information.

💎 Faceted by Smoke Gemini

Initial plan

a754016

Copilot AI assigned Copilot and lpcox Jun 14, 2026

Copilot started work on behalf of lpcox June 14, 2026 17:06 View session

fix: pin duplicate-code-detector to priced copilot model

2ec74a8

Copilot AI changed the title ~~[WIP] Update max-ai-credits in Duplicate Code Detector workflow~~ Pin Duplicate Code Detector to priced Copilot model to avoid unknown-model AI credit failures Jun 14, 2026

Copilot finished work on behalf of lpcox June 14, 2026 17:15

Copilot AI requested a review from lpcox June 14, 2026 17:15

lpcox marked this pull request as ready for review June 14, 2026 17:18

Copilot AI review requested due to automatic review settings June 14, 2026 17:18

Copilot started reviewing on behalf of lpcox June 14, 2026 17:18 View session

Copilot AI had a problem deploying to aoai-model June 14, 2026 17:20 Failure

Copilot AI reviewed Jun 14, 2026

View reviewed changes

Comment thread .github/workflows/duplicate-code-detector.lock.yml Outdated