Migrate PR review plugin to extensions repository

[juanmichelini]

This PR migrates the PR review plugin scripts from the SDK repository to the extensions repository, addressing issue #2282.

Changes

Deleted Files

• examples/03_github_workflows/02_pr_review/agent_script.py - Now lives in extensions repo
• examples/03_github_workflows/02_pr_review/prompt.py - Now lives in extensions repo
• examples/03_github_workflows/02_pr_review/evaluate_review.py - Now lives in extensions repo
• .github/actions/pr-review/action.yml - Now lives in extensions repo
• examples/03_github_workflows/02_pr_review/action.yml - Removed symlink

Updated Files

• workflow.yml: Updated to checkout extensions repository directly and run scripts from there
• .github/workflows/pr-review-evaluation.yml: Updated to checkout extensions repository and run evaluation script from there
• README.md:
  • Updated documentation to reflect migration to extensions repo
  • Changed all references from SDK to extensions
  • Updated workflow setup instructions

Benefits

✅ Eliminates duplicate maintenance of PR review scripts across two repositories
✅ Allows downstream users to access the best-performing PR review plugins from extensions repo
✅ Cleaner separation of concerns - SDK for framework, extensions for plugins

Related Issues

Closes #2282

Testing

The updated workflows now:

1. Check out the extensions repository
2. Install dependencies
3. Run the scripts (agent_script.py, evaluate_review.py) from the extensions repository

Users can continue using the workflow by referencing this action, and it will automatically use the scripts from the extensions repository.

---

Agent Server images for this PR

• GHCR package: https://github.com/OpenHands/agent-sdk/pkgs/container/agent-server

Variants & Base Images

Variant	Architectures	Base Image	Docs / Tags
java	amd64, arm64	eclipse-temurin:17-jdk	Link
python	amd64, arm64	nikolaik/python-nodejs:python3.13-nodejs22	Link
golang	amd64, arm64	golang:1.21-bookworm	Link

Pull (multi-arch manifest)

# Each variant is a multi-arch manifest supporting both amd64 and arm64
docker pull ghcr.io/openhands/agent-server:2d714b8-python

Run

docker run -it --rm \
  -p 8000:8000 \
  --name agent-server-2d714b8-python \
  ghcr.io/openhands/agent-server:2d714b8-python

All tags pushed for this build

ghcr.io/openhands/agent-server:2d714b8-golang-amd64
ghcr.io/openhands/agent-server:2d714b8-golang_tag_1.21-bookworm-amd64
ghcr.io/openhands/agent-server:2d714b8-golang-arm64
ghcr.io/openhands/agent-server:2d714b8-golang_tag_1.21-bookworm-arm64
ghcr.io/openhands/agent-server:2d714b8-java-amd64
ghcr.io/openhands/agent-server:2d714b8-eclipse-temurin_tag_17-jdk-amd64
ghcr.io/openhands/agent-server:2d714b8-java-arm64
ghcr.io/openhands/agent-server:2d714b8-eclipse-temurin_tag_17-jdk-arm64
ghcr.io/openhands/agent-server:2d714b8-python-amd64
ghcr.io/openhands/agent-server:2d714b8-nikolaik_s_python-nodejs_tag_python3.13-nodejs22-amd64
ghcr.io/openhands/agent-server:2d714b8-python-arm64
ghcr.io/openhands/agent-server:2d714b8-nikolaik_s_python-nodejs_tag_python3.13-nodejs22-arm64
ghcr.io/openhands/agent-server:2d714b8-golang
ghcr.io/openhands/agent-server:2d714b8-java
ghcr.io/openhands/agent-server:2d714b8-python

About Multi-Architecture Support

• Each variant tag (e.g., 2d714b8-python) is a multi-arch manifest supporting both amd64 and arm64
• Docker automatically pulls the correct architecture for your platform
• Individual architecture tags (e.g., 2d714b8-python-amd64) are also available if needed

[github-actions]

API breakage checks (Griffe)

Result: Passed

Action log

[github-actions]

Agent server REST API breakage checks (OpenAPI)

Result: Failed

Log excerpt (first 1000 characters)

{"asctime": "2026-03-09 23:42:01,036", "levelname": "WARNING", "name": "openhands.agent_server.config", "filename": "config.py", "lineno": 173, "message": "\u26a0\ufe0f OH_SECRET_KEY was not defined. Secrets will not be persisted between restarts."}
::error title=openhands-agent-server REST API::Breaking REST API change detected without MINOR version bump (1.12.0 -> 1.12.0).

Breaking REST API changes detected compared to baseline release:
- the 'file' request property type/format changed from 'string'/'' to 'string'/'binary'
/home/runner/work/software-agent-sdk/software-agent-sdk/.venv/lib/python3.13/site-packages/litellm/llms/custom_httpx/async_client_cleanup.py:66: DeprecationWarning: There is no current event loop
  loop = asyncio.get_event_loop()

Action log

[juanmichelini]

@OpenHands actually we already have https://github.com/OpenHands/software-agent-sdk/blob/main/.github/workflows/pr-review-by-openhands.yml so let's remove ‎.github/actions/pr-review/action.yml and instead make the example refer to .github/workflows/pr-review-by-openhands.yml

[openhands-ai]

I'm on it! juanmichelini can track my progress at all-hands.dev

[openhands-ai]

I have completed the migration of the PR review logic from a composite action to direct workflow steps, as requested.

Summary of Changes:

1. Removed Composite Action:

   • Deleted .github/actions/pr-review/action.yml.
   • Deleted the symlink at examples/03_github_workflows/02_pr_review/action.yml.

2. Updated Workflows:

   • Modified .github/workflows/pr-review-by-openhands.yml to inline the necessary steps: checking out the extensions repository, installing dependencies (uv, gh, openhands-sdk), and running the agent_script.py directly.
   • Updated examples/03_github_workflows/02_pr_review/workflow.yml to serve as a standalone example that users can copy, replacing the previous action usage with the inlined steps.

3. Updated Documentation:

   • Updated examples/03_github_workflows/02_pr_review/README.md to reflect the new configuration method (environment variables instead of action inputs) and removed references to the composite action.

The changes have been pushed to the migrate-pr-review-to-extensions branch.

[juanmichelini]

@OpenHands that's better, but notice that ./03_github_workflows/02_pr_review/evaluate_review.py also lives in the extension repo now see https://github.com/OpenHands/extensions/tree/main/plugins/pr-review/workflows
also action.yml also lives there.
So we should reflect that in this change. Update the files in this PR, also update the description

[openhands-ai]

I'm on it! juanmichelini can track my progress at all-hands.dev

[openhands-ai]

I have completed the requested changes to migrate evaluate_review.py to the extensions repository and updated the PR description.

Changes Implemented:

1. Deleted File: Removed examples/03_github_workflows/02_pr_review/evaluate_review.py from the SDK repository as it now resides in the extensions repository.
2. Updated Workflow: Modified .github/workflows/pr-review-evaluation.yml to:
   • Checkout the OpenHands/extensions repository.
   • Execute the evaluation script from extensions/plugins/pr-review/workflows/evaluate_review.py.
3. Updated Documentation: Edited examples/03_github_workflows/02_pr_review/README.md to remove the reference to the local evaluate_review.py file.
4. Updated PR Description: Revised the PR description (body) to explicitly list evaluate_review.py and action.yml under "Deleted Files" and updated the "Updated Files" section to reflect the workflow changes.

The changes have been pushed to the migrate-pr-review-to-extensions branch.