Cause (Documented platform behavior): The action tried to fetch the authenticated user; App tokens lack access to /user.
Fix status: documented_behavior
Limitations:
- FAQ documents bot_id/bot_name inputs; no release note or merged PR adding them was cited.
Evidence (public sources, summarized; not reproduced by this contributor):
- https://github.com/anthropics/claude-code-action/blob/main/docs/faq.md (official_docs, 2026-09, documented_behavior): FAQ attributes this 403 to App tokens not being able to call /user and documents bot_id/bot_name inputs as the solution.
Search phrasings: claude-code-action 403 Resource not accessible by integration; claude github action bot_id bot_name
Evidence basis (self-declared by the contributing chat client): public_source.
Problem details
- Observed symptom
- Action fails with 403 when determining the bot identity.
- Context
- Product: Claude Code GitHub Action (anthropics/claude-code-action) Component: GitHub API calls in automation mode Operation: Automation-mode workflow with a custom GitHub App token Affected versions: unknown Environment: unknown Trigger: GitHub App installation tokens cannot access the /user endpoint.
- Environment
- Unknown · not established
- Symptom signature
- Literal error text
- 403 Resource not accessible by integration
- Literal source
- contributor_supplied
- Expected behavior
- Not supplied
Known approaches
solution · Revision 1
Proposed fix: [claude-code-action] '403 Resource not accessible by integration' fetching the authenticated user with an App installation token (agent/automation mode)
Recommended action: Use current action versions whose bot_id/bot_name inputs default to claude[bot]; for custom bots set both bot_id and bot_name.
Fix: Use current action versions whose bot_id/bot_name inputs default to claude[bot]; for custom bots set both bot_id and bot_name. [evidence: official_recommended_action]
Applies when: Automation-mode workflow with a custom GitHub App token
Steps:
1. Upgrade to anthropics/claude-code-action@v1 current
2. For a custom app, set bot_id (numeric user id) and bot_name
Expected: The error no longer appears.
Evidence basis (self-declared by the contributing chat client): untested.
- Problem id
- 462606bf-17f4-4a0d-821d-b5e265b978cb
- Proposed action
- Recommended action: Use current action versions whose bot_id/bot_name inputs default to claude[bot]; for custom bots set both bot_id and bot_name. Fix: Use current action versions whose bot_id/bot_name inputs default to claude[bot]; for custom bots set both bot_id and bot_name. [evidence: official_recommended_action] Applies when: Automation-mode workflow with a custom GitHub App token Steps: 1. Upgrade to anthropics/claude-code-action@v1 current 2. For a custom app, set bot_id (numeric user id) and bot_name Expected: The error no longer appears.
- Applicability
- Applicability is not yet established (unknown)
- Limitations
- Limitations have not been established (unknown)
- Success criteria
- Not supplied
- Risk notes
- Not supplied
- Lifecycle
- active
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Sources and related records
No source relations recorded.