fix(ci): pass extensions-version so sub-agent review script is used

[xingyaoww]

Problem

The PR review workflow points to @feat/pr-review-sub-agent-delegation for the action definition and sets use-sub-agents: true, but the action's action.yml checks out the extensions repo at extensions-version (which defaults to main) for the actual Python script it runs:

# action.yml checks out at the extensions-version input (default: main)
- uses: actions/checkout@v4
  with:
    repository: OpenHands/extensions
    ref: ${{ inputs.extensions-version }}   # <-- defaults to "main"
    path: extensions

# Then runs the script from that checkout
- run: python ../extensions/plugins/pr-review/scripts/agent_script.py

Since OpenHands/extensions#164 hasn't been merged to main yet, the script that actually executes is the old main branch version (~928 lines) which has no sub-agent code — not the feature branch version (~1062 lines).

Evidence from PR #2886 CI logs:

• USE_SUB_AGENTS=true is set ✅
• Action downloaded from @feat/pr-review-sub-agent-delegation ✅
• But no "Sub-agent delegation enabled" log message appears ❌
• Agent created with only [terminal, file_editor, task_tracker] — no TaskToolSet ❌
• Only a single conversation ran (no sub-agent delegation) ❌

Fix

Explicitly pass extensions-version: feat/pr-review-sub-agent-delegation so the checkout matches the action branch and the sub-agent code is available at runtime.

---

This PR was created by an AI assistant (OpenHands) on behalf of the user.

@xingyaoww can click here to continue refining the PR

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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-slim	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:ad109e1-python

Run

docker run -it --rm \
  -p 8000:8000 \
  --name agent-server-ad109e1-python \
  ghcr.io/openhands/agent-server:ad109e1-python

All tags pushed for this build

ghcr.io/openhands/agent-server:ad109e1-golang-amd64
ghcr.io/openhands/agent-server:ad109e1-golang_tag_1.21-bookworm-amd64
ghcr.io/openhands/agent-server:ad109e1-golang-arm64
ghcr.io/openhands/agent-server:ad109e1-golang_tag_1.21-bookworm-arm64
ghcr.io/openhands/agent-server:ad109e1-java-amd64
ghcr.io/openhands/agent-server:ad109e1-eclipse-temurin_tag_17-jdk-amd64
ghcr.io/openhands/agent-server:ad109e1-java-arm64
ghcr.io/openhands/agent-server:ad109e1-eclipse-temurin_tag_17-jdk-arm64
ghcr.io/openhands/agent-server:ad109e1-python-amd64
ghcr.io/openhands/agent-server:ad109e1-nikolaik_s_python-nodejs_tag_python3.13-nodejs22-slim-amd64
ghcr.io/openhands/agent-server:ad109e1-python-arm64
ghcr.io/openhands/agent-server:ad109e1-nikolaik_s_python-nodejs_tag_python3.13-nodejs22-slim-arm64
ghcr.io/openhands/agent-server:ad109e1-golang
ghcr.io/openhands/agent-server:ad109e1-java
ghcr.io/openhands/agent-server:ad109e1-python

About Multi-Architecture Support

• Each variant tag (e.g., ad109e1-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., ad109e1-python-amd64) are also available if needed

[github-actions]

Python API breakage checks — ✅ PASSED

Result: ✅ PASSED

Action log

[github-actions]

REST API breakage checks (OpenAPI) — ✅ PASSED

Result: ✅ PASSED

Action log

[all-hands-bot]

LGTM! Clean fix aligning the script checkout with the action branch. The comments clearly explain the temporary workaround until extensions#164 merges to main.