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Merged
ChrisJBurns merged 1 commit into from
Aug 10, 2026
Merged

Gate the Claude workflow on write access, not contribution history #6260

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49 changes: 29 additions & 20 deletions .github/workflows/claude.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -13,27 +13,36 @@ on:
jobs:
claude:
name: Claude Code Action
# Security: Only allow invocation by trusted contributors.
# Blocks NONE (anonymous), FIRST_TIMER, and FIRST_TIME_CONTRIBUTOR to
# prevent prompt-injection attacks from untrusted GitHub users.
# Security: only allow invocation by trusted contributors.
#
# This is an allow-list rather than a deny-list. Denying NONE, FIRST_TIMER
# and FIRST_TIME_CONTRIBUTOR still admitted CONTRIBUTOR — which anyone
# earns permanently by getting a single pull request merged — and
# MANNEQUIN. This job holds contents: write and ANTHROPIC_API_KEY and
# allows Bash(git *), so the bar needs to be write access to the
# repository, not a history of contributing to it.
#
# Same pattern as the /retest gate in retest.yaml.
# See: https://docs.github.com/en/graphql/reference/enums#commentauthorassociation
if: |
(github.event_name == 'issue_comment' && contains(github.event.comment.body, '@claude') &&
github.event.comment.author_association != 'NONE' &&
github.event.comment.author_association != 'FIRST_TIMER' &&
github.event.comment.author_association != 'FIRST_TIME_CONTRIBUTOR') ||
(github.event_name == 'pull_request_review_comment' && contains(github.event.comment.body, '@claude') &&
github.event.comment.author_association != 'NONE' &&
github.event.comment.author_association != 'FIRST_TIMER' &&
github.event.comment.author_association != 'FIRST_TIME_CONTRIBUTOR') ||
(github.event_name == 'pull_request_review' && contains(github.event.review.body, '@claude') &&
github.event.review.author_association != 'NONE' &&
github.event.review.author_association != 'FIRST_TIMER' &&
github.event.review.author_association != 'FIRST_TIME_CONTRIBUTOR') ||
(github.event_name == 'issues' && contains(github.event.issue.body, '@claude') &&
github.event.issue.author_association != 'NONE' &&
github.event.issue.author_association != 'FIRST_TIMER' &&
github.event.issue.author_association != 'FIRST_TIME_CONTRIBUTOR')
if: >-
${{
(github.event_name == 'issue_comment'
&& contains(github.event.comment.body, '@claude')
&& contains(fromJSON('["OWNER", "MEMBER", "COLLABORATOR"]'),
github.event.comment.author_association))
|| (github.event_name == 'pull_request_review_comment'
&& contains(github.event.comment.body, '@claude')
&& contains(fromJSON('["OWNER", "MEMBER", "COLLABORATOR"]'),
github.event.comment.author_association))
|| (github.event_name == 'pull_request_review'
&& contains(github.event.review.body, '@claude')
&& contains(fromJSON('["OWNER", "MEMBER", "COLLABORATOR"]'),
github.event.review.author_association))
|| (github.event_name == 'issues'
&& contains(github.event.issue.body, '@claude')
&& contains(fromJSON('["OWNER", "MEMBER", "COLLABORATOR"]'),
github.event.issue.author_association))
}}
runs-on: ubuntu-latest
timeout-minutes: 20
# Least-privilege permissions for the AI agent workflow.
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