fix-issue - SKILL.md Agent Skill

name: fix-issue description: Fix a GitHub issue using git worktree for isolation. Fetches issue, creates worktree, implements fix, then creates PR.

Fix Issue Workflow (Worktree-Based)

Workflow

Step 1: Verify Prerequisites

gh auth status

Step 2: Fetch Issue

ISSUE_NUM=<number>
gh issue view $ISSUE_NUM --repo "${REPO_OWNER}/${REPO_NAME}" --json number,title,body,state,labels

If closed, confirm with user before proceeding.

Step 3: Update Issue Status

gh issue comment $ISSUE_NUM --repo china-qijizhifeng/NexRL \
  --body "🤖 Agent picking up this issue. Creating worktree branch \`agent/issue-${ISSUE_NUM}\`."

gh issue edit $ISSUE_NUM --repo china-qijizhifeng/NexRL \
  --add-label "status:in-progress" 2>/dev/null || true

Fetch Shared Knowledge

Clone or update the shared knowledge repo for common scripts and docs.

REPO_ROOT=$(git rev-parse --show-toplevel)
SHARED_KNOWLEDGE="${REPO_ROOT}/../nex-taas-shared-knowledge"
if [ ! -d "$SHARED_KNOWLEDGE" ]; then
  git clone https://github.com/china-qijizhifeng/nex-taas-shared-knowledge.git "$SHARED_KNOWLEDGE"
else
  git -C "$SHARED_KNOWLEDGE" pull --ff-only 2>/dev/null || true
fi

Step 4: Create Worktree

REPO_ROOT=$(git rev-parse --show-toplevel)
cd "$REPO_ROOT"
git fetch origin

BRANCH="agent/issue-${ISSUE_NUM}"
WORKTREE_DIR="${REPO_ROOT}/../worktrees/NexRL-issue-${ISSUE_NUM}"

git worktree add "$WORKTREE_DIR" -b "$BRANCH" "origin/main"
cd "$WORKTREE_DIR"

Step 5: Read Documentation First

Before coding, read relevant docs per .ai-instructions/developing/documentation.md:

docs/developer-guide/ for architecture understanding
Component-specific docs for the area being changed

Step 6: Plan the Fix

Enter plan mode. Consider:

Root cause analysis (for bugs)
Files that need changes
Impact on other components
Documentation updates needed

Step 7: Implement

Work in the worktree directory. Follow:

.ai-instructions/developing/ conventions
Run python -m black and python -m isort on changed files
Ensure license headers present

Step 8: Test

Run project tests (use testing skill):

python -m pytest tests/ -v
python -m pylint nexrl/ --rcfile=.pylintrc -rn -sn

Step 9: Commit and PR

Use git-commit skill, then github-pr skill. PR body should include: Fixes #ISSUE_NUM

Step 10: Handle Blockers

If blocked:

gh issue edit $ISSUE_NUM --repo china-qijizhifeng/NexRL \
  --remove-label "status:in-progress" --add-label "status:blocked"

gh issue comment $ISSUE_NUM --repo china-qijizhifeng/NexRL --body "
🚧 Blocked: <describe the problem>
Need guidance on: <specific question>
Progress so far: <what's been done>"

Step 11: Cleanup (after PR merged)

REPO_ROOT=$(git rev-parse --show-toplevel)
cd "$REPO_ROOT"
git worktree remove "$WORKTREE_DIR"
git branch -D "$BRANCH"