bare-eval

Original：🇺🇸 English

Translated

Run isolated eval and grading calls using CC 2.1.81 --bare mode. Constructs claude -p --bare invocations for skill evaluation, trigger testing, and LLM grading without plugin/hook interference. Use when running eval pipelines, grading skill outputs, benchmarking prompt quality, or testing trigger accuracy in isolation.

2installs

Sourceyonatangross/orchestkit

Added on2026-03-25

NPX Install

npx skill4agent add yonatangross/orchestkit bare-eval

SKILL.md Content

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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 "$schema" --output-format json`
Optimize	`echo "$prompt" \| claude -p --bare --max-turns 1 --output-format text`
Force-skill	`claude -p "$prompt" --bare --print --append-system-prompt "$content"`

Invocation Patterns

Load detailed patterns and examples:

Read("${CLAUDE_SKILL_DIR}/references/invocation-patterns.md")

Grading Schemas

JSON schemas for structured eval output:

Read("${CLAUDE_SKILL_DIR}/references/grading-schemas.md")

Pipeline Integration

OrchestKit's eval scripts (

npm run eval:skill

) auto-detect bare mode:

bash

# eval-common.sh detects ANTHROPIC_API_KEY → sets BARE_MODE=true
# Scripts add --bare to all non-plugin calls automatically

Bare calls: Trigger classification, force-skill, baseline, all grading. Never bare:

run_with_skill

(needs plugin context for routing tests).

Performance

Scenario	Without --bare	With --bare	Savings
Single grading call	~3-5s startup	~0.5-1s	2-4x
Trigger (per prompt)	~3-5s	~0.5-1s	2-4x
Full eval (50 calls)	~150-250s overhead	~25-50s	3-5x

Rules

Read("${CLAUDE_SKILL_DIR}/rules/_sections.md")

Troubleshooting

Read("${CLAUDE_SKILL_DIR}/references/troubleshooting.md")