Restrict Claude Step Summary output to debug runs#24
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danielorbach merged 2 commits intomainfrom Mar 17, 2026
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display_report renders Claude's analysis in the GitHub Step Summary. Unconditionally enabling it is verbose for routine runs and, per the upstream warning, should only be used with trusted input. Gate on runner.debug so the report is still available when re-running with debug logging enabled. display_report (not show_full_output) is the correct input here: show_full_output dumps the full JSON execution log including tool results that may contain secrets; display_report only renders Claude's authored summary, which is safe for this workflow's trusted-input context.
The actor gate on the review job restricts Claude steps to the dependabot[bot] actor, mitigating the primary prompt injection vector (attacker-authored PR/issue content reaching the Claude prompt or Step Summary). Note that Claude may still fetch external content such as changelogs during analysis; the actor gate addresses the direct input surface.
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Caution Review failedPull request was closed or merged during review 📝 WalkthroughWalkthroughThe PR modifies the GitHub Actions workflow to add a prompt-injection mitigation comment and makes the Changes
Estimated code review effort🎯 2 (Simple) | ⏱️ ~5 minutes Possibly related PRs
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✏️ Tip: You can configure your own custom pre-merge checks in the settings. ✨ Finishing Touches🧪 Generate unit tests (beta)
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PR #22 unconditionally enabled
display_reporton the Claude review steps so the workflow summary would always render Claude's analysis. This is verbose for routine Dependabot runs and, per the upstream warning on the input, should be reserved for trusted-input contexts.The Step Summary is now gated on
runner.debug, making it available when a workflow is re-run with debug logging enabled but silent otherwise. The workflow header also gains a comment explaining why the prompt injection threat model that motivated upstream's default-off change does not apply here: the review job's actor gate restricts execution to thedependabot[bot]actor, a trusted first-party automation source.Relates to #6