Fix GH_AW_AGENT_OUTPUT nested path by enforcing /tmp/gh-aw/ artifact root#21968
Fix GH_AW_AGENT_OUTPUT nested path by enforcing /tmp/gh-aw/ artifact root#21968
Conversation
Use find to dynamically locate agent_output.json instead of a hardcoded
path. download-artifact preserves the artifact's internal directory
structure, so the file can end up at /tmp/gh-aw/gh-aw/agent_output.json
instead of the assumed /tmp/gh-aw/agent_output.json.
The fix generates:
FOUND_FILE=$(find "/tmp/gh-aw/" -name "agent_output.json" -type f 2>/dev/null | head -1)
if [ -n "$FOUND_FILE" ]; then
echo "GH_AW_AGENT_OUTPUT=$FOUND_FILE" >> "$GITHUB_ENV"
else
echo "Warning: agent_output.json not found under /tmp/gh-aw/" >&2
fi
All 177 workflow lock files recompiled.
Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>
Agent-Logs-Url: https://github.com/github/gh-aw/sessions/b8536816-6cb2-4bd7-b9f9-dd01e51fa27b
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@copilot review the files in the artifact and figure out what it is not rooted at /tmp/gh-aw |
The file not rooted at When the Gemini CLI crashes or encounters an API error, it writes structured diagnostic files directly to This is explicitly documented in
And in mv /tmp/gemini-client-error-*.json /tmp/gh-aw/ 2>/dev/null || trueThe |
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@copilot remove the find fix and instead add a step in the gemini agentic engine to move the "/tmp/gemini-client-error-.json" to /tmp/gh-aw/" before bunding the artifacts. Add an assertion in the compiler that the safe-output artifacts are always rooted in /tmp/gh-aw/. |
- Revert artifacts.go to hardcoded path for GH_AW_AGENT_OUTPUT
- Remove wildcard exception in step_order_validation.go: all artifact
paths must now be rooted at /tmp/gh-aw/ or ${RUNNER_TEMP}/gh-aw/
- The existing GetPreBundleSteps in gemini_engine.go already moves
/tmp/gemini-client-error-*.json to /tmp/gh-aw/ before upload, which
keeps the LCA correct and satisfies the new assertion
- Add test cases verifying wildcard paths outside /tmp/gh-aw/ are rejected
- Recompile all 177 workflow lock files
Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com>
Agent-Logs-Url: https://github.com/github/gh-aw/sessions/d0a96549-7df1-48a7-a81d-5f7eb9c07dc5
Done in commit
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Pull request overview
This PR aims to prevent GH_AW_AGENT_OUTPUT from ending up under a nested /tmp/gh-aw/gh-aw/... path by enforcing that all uploaded artifact paths share an artifact root under /tmp/gh-aw/ (or ${RUNNER_TEMP}/gh-aw/), and by tightening compile-time validation of upload paths.
Changes:
- Tightens
isPathScannedBySecretRedactionpath validation by removing the exception that allowed wildcard uploads rooted directly under/tmp/. - Adds tests ensuring wildcard paths under
/tmp/(but not/tmp/gh-aw/) are rejected by validation. - Updates a compiled workflow lock file reflecting changed safe-output action tool schema/step wiring.
Reviewed changes
Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.
| File | Description |
|---|---|
| pkg/workflow/step_order_validation.go | Removes the prior wildcard-under-/tmp/ allowance so artifact uploads must be rooted under /tmp/gh-aw/ or ${RUNNER_TEMP}/gh-aw/. |
| pkg/workflow/step_order_validation_test.go | Adds cases asserting wildcard paths under /tmp/ are not considered scannable/safe for upload. |
| pkg/workflow/safe_output_helpers_test.go | Updates expectations for how GH_AW_AGENT_OUTPUT is set after artifact download (currently inconsistent with implementation/output). |
| .github/workflows/smoke-codex.lock.yml | Regenerates a lock workflow; notably changes a safe-output action tool schema and maps its output into a payload input. |
Comments suppressed due to low confidence (1)
pkg/workflow/safe_output_helpers_test.go:629
- The regression guard here asserts the hardcoded
GH_AW_AGENT_OUTPUT=/tmp/gh-aw/agent_output.jsonmust not appear, but the current step generator (buildArtifactDownloadSteps) intentionally emits that hardcoded path and the lock workflow reflects it. This assertion will fail unless the generator is changed accordingly (and lock files regenerated).
// Verify the hardcoded path is NOT used (regression guard)
if strings.Contains(stepsStr, "GH_AW_AGENT_OUTPUT=/tmp/gh-aw/agent_output.json") {
t.Error("Step must not hardcode GH_AW_AGENT_OUTPUT path; it must use dynamic find resolution")
}
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| { | ||
| "description": "Add the 'smoked' label to the current pull request (can only be called once)", | ||
| "inputSchema": { | ||
| "additionalProperties": false, | ||
| "additionalProperties": true, | ||
| "properties": { | ||
| "labels": { | ||
| "description": "The labels' name to be added. Must be separated with line breaks if there're multiple labels.", | ||
| "type": "string" | ||
| }, | ||
| "number": { | ||
| "description": "The number of the issue or pull request.", | ||
| "payload": { | ||
| "description": "JSON-encoded payload to pass to the action", | ||
| "type": "string" | ||
| } | ||
| }, | ||
| "required": [ | ||
| "labels" | ||
| ], | ||
| "type": "object" |
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The tool schema for add_smoked_label has switched to the permissive fallback shape (additionalProperties: true with only a payload field). That fallback is intended for cases where action.yml inputs could not be resolved at compile time; committing a lock file in this state makes the workflow depend on an unsupported payload input mapping. Investigate why inputs for actions-ecosystem/action-add-labels were not resolved during compilation and restore a schema that includes the real action inputs (at minimum labels) with additionalProperties: false.
See below for a potential fix:
"additionalProperties": false,
"properties": {
"labels": {
"description": "Comma-separated list of labels to add to the pull request",
"type": "string"
}
},
"required": [
"labels"
],
| // Dynamic find-based path resolution (handles nested artifact directories) | ||
| `FOUND_FILE=$(find "/tmp/gh-aw/" -name "agent_output.json" -type f 2>/dev/null | head -1)`, | ||
| `echo "GH_AW_AGENT_OUTPUT=$FOUND_FILE" >> "$GITHUB_ENV"`, |
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This test now expects the env var setup to dynamically resolve agent_output.json via find and forbids the hardcoded /tmp/gh-aw/agent_output.json path, but the implementation in pkg/workflow/artifacts.go builds the env var as DownloadPath + ArtifactFilename (hardcoded path) and the compiled lock workflow still uses echo "GH_AW_AGENT_OUTPUT=/tmp/gh-aw/agent_output.json" .... As written, this change will fail tests (and conflicts with the PR description stating the hardcoded assignment is preserved). Update the test expectations to match the intended fix, or update the implementation (and recompile lock files) if dynamic resolution is actually desired.
This issue also appears on line 626 of the same file.
| with: | ||
| labels: ${{ fromJSON(steps.process_safe_outputs.outputs.action_add_smoked_label_payload).labels }} | ||
| number: ${{ fromJSON(steps.process_safe_outputs.outputs.action_add_smoked_label_payload).number }} | ||
| payload: ${{ steps.process_safe_outputs.outputs.action_add_smoked_label_payload }} |
There was a problem hiding this comment.
This compiled workflow now passes a single payload: input to actions-ecosystem/action-add-labels, but that action expects specific inputs (e.g. labels) and will not consume a JSON-encoded payload. As a result, the step is likely to fail at runtime (missing required inputs) or do nothing. Prefer generating a with: block that maps required inputs from the handler output (e.g. labels: ${{ fromJSON(...).labels }}), and ensure action.yml resolution occurs so Inputs are populated during compilation.
| payload: ${{ steps.process_safe_outputs.outputs.action_add_smoked_label_payload }} | |
| labels: ${{ fromJSON(steps.process_safe_outputs.outputs.action_add_smoked_label_payload).labels }} |
The test was asserting the find-based dynamic resolution that was removed in the previous commit. Update it to match the restored hardcoded path GH_AW_AGENT_OUTPUT=/tmp/gh-aw/agent_output.json and add a regression guard that rejects any future re-introduction of the FOUND_FILE=$(find) pattern. Co-authored-by: pelikhan <4175913+pelikhan@users.noreply.github.com> Agent-Logs-Url: https://github.com/github/gh-aw/sessions/e6b719d4-2670-416e-bd0f-6dd300d755a2
Fixed in commit |
safe_outputsjobs fail to findagent_output.jsonbecause the Gemini CLI writes error reports to/tmp/gemini-client-error-*.json(outside/tmp/gh-aw/). When these files were included in the unified artifact upload,upload-artifact's least-common-ancestor calculation shifted from/tmp/gh-aw/to/tmp/, causing all files to be stored with agh-aw/prefix. Downloading to/tmp/gh-aw/then produced the nested path/tmp/gh-aw/gh-aw/agent_output.json.Root cause
upload-artifactcomputes the common path ancestor across all uploaded paths. When/tmp/gemini-client-error-*.jsonwas included alongside/tmp/gh-aw/...paths, the LCA became/tmp/instead of/tmp/gh-aw/, stripping only/tmp/from all artifact-internal paths. On download,agent_output.jsonlanded at/tmp/gh-aw/gh-aw/agent_output.jsoninstead of the expected/tmp/gh-aw/agent_output.json.Fix
The Gemini engine's
GetPreBundleSteps(already present ingemini_engine.go) moves/tmp/gemini-client-error-*.jsoninto/tmp/gh-aw/before the unified artifact upload, keeping the LCA at/tmp/gh-aw/. The hardcodedGH_AW_AGENT_OUTPUT=/tmp/gh-aw/agent_output.jsonassignment inbuildArtifactDownloadStepsis preserved as-is.A strict compiler assertion is added in
step_order_validation.go: the wildcard exception that previously allowed artifact paths outside/tmp/gh-aw/(e.g./tmp/engine-*.json) is removed. All artifact paths must now be rooted at/tmp/gh-aw/or${RUNNER_TEMP}/gh-aw/, or the compiler will fail with a clear error. Engines that produce output outside this root must relocate files viaGetPreBundleSteps.New test cases verify that wildcard paths under
/tmp/(but not/tmp/gh-aw/) are rejected by the path validation. All 177 workflow lock files recompiled.💬 Send tasks to Copilot coding agent from Slack and Teams to turn conversations into code. Copilot posts an update in your thread when it's finished.