84d317e8f9
In some workflow contexts — reliably reproducible for us on
pull_request-triggered runs of this action — the Claude Agent SDK
query() async iterator does not close after the terminal result
message is emitted. The for-await loop in runClaudeWithSdk blocks
indefinitely after Claude has finished its work, until the workflow's
timeout-minutes cap kills the job.
Symptoms observed in production (4× in our scan-reviewer workflow):
- Claude completes successfully: SDK emits { type: "result",
subtype: "success", ... } with the cost / turns / duration set.
- The action then sits with zero log output for the rest of
timeout-minutes (we measured 18-19 min of dead time after result).
- The job is cancelled at timeout. writeExecutionFile is never
called → no claude-execution-output.json → cost-tracker and other
post-steps see nothing.
- Run shows as cancelled, even though Claude did its work and any
verdict it posted via gh tools already landed.
Author-mode (workflow_dispatch) runs from the same codebase
terminate cleanly the same day, so the hang is specific to certain
event triggers.
By SDK contract the result message is terminal — no further messages
follow. Break out of the loop immediately after capturing it,
regardless of whether the upstream iterator ever closes. If the SDK
is later fixed to close cleanly in all contexts, this break becomes
a no-op.
Claude Code Action
A general-purpose Claude Code action for GitHub PRs and issues that can answer questions and implement code changes. This action intelligently detects when to activate based on your workflow context—whether responding to @claude mentions, issue assignments, or executing automation tasks with explicit prompts. It supports multiple authentication methods including Anthropic direct API (API key or workload identity federation), Amazon Bedrock, Google Vertex AI, and Microsoft Foundry.
Features
- 🎯 Intelligent Mode Detection: Automatically selects the appropriate execution mode based on your workflow context—no configuration needed
- 🤖 Interactive Code Assistant: Claude can answer questions about code, architecture, and programming
- 🔍 Code Review: Analyzes PR changes and suggests improvements
- ✨ Code Implementation: Can implement simple fixes, refactoring, and even new features
- 💬 PR/Issue Integration: Works seamlessly with GitHub comments and PR reviews
- 🛠️ Flexible Tool Access: Access to GitHub APIs and file operations (additional tools can be enabled via configuration)
- 📋 Progress Tracking: Visual progress indicators with checkboxes that dynamically update as Claude completes tasks
- 📊 Structured Outputs: Get validated JSON results that automatically become GitHub Action outputs for complex automations
- 🏃 Runs on Your Infrastructure: The action executes entirely on your own GitHub runner (Anthropic API calls go to your chosen provider)
- ⚙️ Simplified Configuration: Unified
promptandclaude_argsinputs provide clean, powerful configuration aligned with Claude Code SDK
📦 Upgrading from v0.x?
See our Migration Guide for step-by-step instructions on updating your workflows to v1.0. The new version simplifies configuration while maintaining compatibility with most existing setups.
Quickstart
The easiest way to set up this action is through Claude Code in the terminal. Just open claude and run /install-github-app.
This command will guide you through setting up the GitHub app and required secrets.
Note:
- You must be a repository admin to install the GitHub app and add secrets
- This quickstart method is only available for direct Anthropic API users. For AWS Bedrock, Google Vertex AI, or Microsoft Foundry setup, see docs/cloud-providers.md.
📚 Solutions & Use Cases
Looking for specific automation patterns? Check our Solutions Guide for complete working examples including:
- 🔍 Automatic PR Code Review - Full review automation
- 📂 Path-Specific Reviews - Trigger on critical file changes
- 👥 External Contributor Reviews - Special handling for new contributors
- 📝 Custom Review Checklists - Enforce team standards
- 🔄 Scheduled Maintenance - Automated repository health checks
- 🏷️ Issue Triage & Labeling - Automatic categorization
- 📖 Documentation Sync - Keep docs updated with code changes
- 🔒 Security-Focused Reviews - OWASP-aligned security analysis
- 📊 DIY Progress Tracking - Create tracking comments in automation mode
Each solution includes complete working examples, configuration details, and expected outcomes.
Documentation
- Solutions Guide - 🎯 Ready-to-use automation patterns
- Migration Guide - ⭐ Upgrading from v0.x to v1.0
- Setup Guide - Manual setup, custom GitHub apps, and security best practices
- Usage Guide - Basic usage, workflow configuration, and input parameters
- Custom Automations - Examples of automated workflows and custom prompts
- Configuration - MCP servers, permissions, environment variables, and advanced settings
- Experimental Features - Execution modes and network restrictions
- Cloud Providers - AWS Bedrock, Google Vertex AI, and Microsoft Foundry setup
- Capabilities & Limitations - What Claude can and cannot do
- Security - Access control, permissions, and commit signing
- FAQ - Common questions and troubleshooting
📚 FAQ
Having issues or questions? Check out our Frequently Asked Questions for solutions to common problems and detailed explanations of Claude's capabilities and limitations.
License
This project is licensed under the MIT License—see the LICENSE file for details.