Merge main and expand smoke fallback coverage across engines and runt…

…imes Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
pelikhan · Oct 7, 2026 · Oct 7, 2026 · Oct 7, 2026 · Oct 7, 2026 · Oct 7, 2026
commit 94543b584c9b2ce70be16d78796c40588cae968c
diff --git a/.github/workflows/engine-conformance-deepseek-harness.lock.yml b/.github/workflows/engine-conformance-deepseek-harness.lock.yml
diff --git a/.github/workflows/smoke-claude.lock.yml b/.github/workflows/smoke-claude.lock.yml
diff --git a/.github/workflows/smoke-claude.md b/.github/workflows/smoke-claude.md
@@ -28,6 +28,9 @@ max-turns: 100
 model: claude-sonnet-4-6
 engine:
   id: claude
+  fallback-models:
+    - anthropic/claude-haiku-4-5
+    - anthropic/claude-sonnet-5
   bare: true
 inlined-imports: true
 imports:

diff --git a/.github/workflows/smoke-codex.lock.yml b/.github/workflows/smoke-codex.lock.yml
diff --git a/.github/workflows/smoke-codex.md b/.github/workflows/smoke-codex.md
@@ -21,7 +21,11 @@ permissions:
   issues: read
   pull-requests: read
 name: Smoke Codex
-engine: codex
+engine:
+  id: codex
+  fallback-models:
+    - openai/gpt-5.4
+    - openai/gpt-5.4-mini
 imports:
   - shared/gh.md
   - shared/reporting-otlp.md

diff --git a/.github/workflows/smoke-copilot-arm.lock.yml b/.github/workflows/smoke-copilot-arm.lock.yml
diff --git a/.github/workflows/smoke-copilot-arm.md b/.github/workflows/smoke-copilot-arm.md
@@ -21,7 +21,11 @@ permissions:
   discussions: read
   actions: read
 name: Smoke Copilot ARM64
-engine: copilot
+engine:
+  id: copilot
+  fallback-models:
+    - copilot/gpt-5.4
+    - copilot/claude-sonnet-5
 runs-on: ubuntu-24.04-arm
 imports:
   - shared/gh.md

diff --git a/.github/workflows/smoke-copilot-sdk.lock.yml b/.github/workflows/smoke-copilot-sdk.lock.yml
diff --git a/.github/workflows/smoke-copilot-sdk.md b/.github/workflows/smoke-copilot-sdk.md
@@ -16,9 +16,12 @@ on:
 permissions:
   contents: read
 name: Smoke Copilot SDK
-model: gpt-5.4
+model: copilot/gpt-5.4
 engine:
   id: copilot
+  fallback-models:
+    - copilot/claude-sonnet-5
+    - copilot/gpt-5.4-mini
   copilot-sdk: true
   bare: true
 imports:

diff --git a/.github/workflows/smoke-deepseek-harness.lock.yml b/.github/workflows/smoke-deepseek-harness.lock.yml
diff --git a/.github/workflows/smoke-gemini.lock.yml b/.github/workflows/smoke-gemini.lock.yml
diff --git a/.github/workflows/smoke-gemini.md b/.github/workflows/smoke-gemini.md
@@ -36,6 +36,9 @@ experiments:
     tags: [cost_optimization, smoke_tests]
 engine:
   id: gemini
+  fallback-models:
+    - gemini/gemini-3.8-flash
+    - gemini/gemini-2.5-pro
 strict: true
 imports:
   - shared/reporting-otlp.md

diff --git a/.github/workflows/smoke-github-claude.lock.yml b/.github/workflows/smoke-github-claude.lock.yml
diff --git a/.github/workflows/smoke-github-claude.md b/.github/workflows/smoke-github-claude.md
@@ -17,6 +17,9 @@ model: claude-haiku-4.5
 engine:
   id: claude
   model-provider: github
+  fallback-models:
+    - copilot/claude-sonnet-5
+    - copilot/claude-sonnet-4.6
   bare: true
 strict: true
 imports:

diff --git a/.github/workflows/smoke-pi.lock.yml b/.github/workflows/smoke-pi.lock.yml
diff --git a/.github/workflows/smoke-pi.md b/.github/workflows/smoke-pi.md
@@ -23,6 +23,9 @@ name: Smoke Pi
 model: copilot/auto
 engine:
   id: pi
+  fallback-models:
+    - copilot/gpt-5.4
+    - copilot/claude-sonnet-5
 max-tool-calls: 80
 strict: true
 sandbox:

diff --git a/.github/workflows/smoke-service-ports.lock.yml b/.github/workflows/smoke-service-ports.lock.yml
diff --git a/.github/workflows/smoke-service-ports.md b/.github/workflows/smoke-service-ports.md
@@ -16,7 +16,11 @@ permissions:
   issues: read
   pull-requests: read
 name: Smoke Service Ports
-engine: pi
+engine:
+  id: pi
+  fallback-models:
+    - copilot/gpt-5.4
+    - copilot/gpt-5.4-mini
 model: copilot/gpt-5.3-codex
 strict: true
 sandbox:

diff --git a/.github/workflows/smoke-work-queue.lock.yml b/.github/workflows/smoke-work-queue.lock.yml
diff --git a/.github/workflows/smoke-work-queue.md b/.github/workflows/smoke-work-queue.md
@@ -12,6 +12,9 @@ permissions:
 engine:
   id: copilot
   model: copilot/gpt-5.3-codex
+  fallback-models:
+    - copilot/gpt-5.4
+    - copilot/gpt-5.4-mini
 sandbox:
   agent:
     id: awf

diff --git a/docs/src/content/docs/reference/engines.md b/docs/src/content/docs/reference/engines.md
@@ -494,6 +494,8 @@ AWF v0.28.44 supports concrete same-provider chains only. Cross-provider chains
 
 AWF's `token-usage.jsonl` records the actual serving model and `model_fallback` evidence; gh-aw uses that evidence for `aw_info.json`, telemetry, and generated output attribution.
 
+The repository's smoke workflows configure fallback chains across Copilot, Claude, Codex, Gemini, and Pi. Additional coverage includes Copilot SDK (`smoke-copilot-sdk`), ARM64 (`smoke-copilot-arm`), Claude on GitHub inference (`smoke-github-claude`), published service ports with `docker-sudo-iptables` (`smoke-service-ports`), and Cloud Hypervisor (`smoke-work-queue`). These workflows exercise their existing tasks with fallback enabled; they do not force provider failures or prove that a model switch occurred.
+
 Codex has no gh-aw-supplied default model. Set `engine.model`, a phase-specific `GH_AW_MODEL_*_CODEX` repository variable, or `GH_AW_DEFAULT_MODEL_CODEX` explicitly; an empty model selection never introduces an implicit `gpt-5.4` recovery model.
 
 ### Copilot SDK Support