pwd && git rev-parse --show-toplevel 2>/dev/null || echo "Not a git repo"
git branch --show-current 2>/dev/null && git status --short 2>/dev/null | head -20

git diff --stat 2>/dev/null | tail -20
git log --oneline -5 --since="4 hours ago" 2>/dev/null

<context>
Working directory: {cwd}
Repository: {repo_name}
Branch: {branch}
{git_status}
{recent_changes if medium/full}
{session_summary if full}
</context>

<task>
{task from arguments}
</task>

<constraints>
- Implement EXACTLY what is requested
- Read files before changing
- Run tests/linters to validate
- State interpretation if ambiguous
</constraints>

<output>
Summary (≤5 bullets):
- **What changed**: Files and changes
- **Where**: file:line references
- **Validation**: Tests/linters run
- **Risks**: Edge cases to watch
- **Next steps**: Follow-up or "None"
</output>

mkdir -p ~/.claude/codex/${CLAUDE_SESSION_ID}
git rev-parse --show-toplevel 2>/dev/null && IN_GIT=true || IN_GIT=false

codex exec --json \
  -o ~/.claude/codex/${CLAUDE_SESSION_ID}/summary-{timestamp}.txt \
  {--skip-git-repo-check if not in git} \
  {--full-auto OR --sandbox <mode>} \
  {-m <model> if requested} \
  - <<'CODEX_PROMPT'
{prompt}
CODEX_PROMPT > ~/.claude/codex/${CLAUDE_SESSION_ID}/progress-{timestamp}.jsonl

cat ~/.claude/codex/${CLAUDE_SESSION_ID}/summary-*.txt

**Status:** {success/error/partial}
**Changed:** {files and changes}
**Validation:** {tests/linters}
**Risks:** {if any}
**Next:** {follow-up or "None"}

# Simple fix
/codex fix the null pointer in utils/parser.ts line 42

# Feature work
/codex add rate limiting to the /api/submit endpoint

# Investigation (background)
/codex investigate why the CI build fails on arm64

# Model override
/codex --model o3 design a caching strategy

# Read-only
/codex --sandbox read-only review the auth implementation