bare-eval

# Bare Eval — Isolated Evaluation Calls Run `claude -p --bare` for fast, clean eval/grading without plugin overhead. **CC 2.1.81 required.** The `--bare` flag skips hooks, LSP, plugin sync, and skill directory walks. ## When to Use - Grading skill outputs against assertions - Trigger classification (which skill matches a prompt) - Description optimization iterations - Any scripted `-p` call that doesn't need plugins ## When NOT to Use - Testing skill routing (needs `--plugin-dir`) - Testing agent orchestration (needs full plugin context) - Interactive sessions ## Prerequisites ```bash # --bare requires ANTHROPIC_API_KEY (OAuth/keychain disabled) export ANTHROPIC_API_KEY="sk-ant-..." # Verify CC version claude --version # Must be >= 2.1.81 ``` ## Quick Reference | Call Type | Command Pattern | |-----------|----------------| | Grading | `claude -p "$prompt" --bare --max-turns 1 --output-format text` | | Trigger | `claude -p "$prompt" --bare --json-schema "$schema" --output-format json` | | Streaming grade | `claude -p "$prompt" --bare --max-turns 1 --output-format stream-json` | | Optimize | `echo "$prompt" \| claude -p --bare --max-turns 1 --output-format text` | | Force-skill | `claude -p "$prompt" --bare --print --append-system-prompt "$content"` | | @-file in prompt | `claude -p "grade @fixtures/case-1.md against rubric" --bare` (CC 2.1.113 Remote Control autocomplete) | ### `--output-format stream-json` Newline-delimited JSON events (one per token/tool-call) ...