eval

Validate agent skills with linting and LLM-based calibration drift detection.

2|Updated Mar 19, 2026
One-click install
npx skills add https://github.com/alex-voloshin-dev/ai-skills --skill eval-alex-voloshin-dev
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: eval
Source: https://github.com/alex-voloshin-dev/ai-skills/tree/main/plugin/skills/eval
Command: npx skills add https://github.com/alex-voloshin-dev/ai-skills --skill eval-alex-voloshin-dev

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires anthropic, and includes scripts (resource) components.

What problem does it solve?

This skill addresses the challenge of ensuring agent reliability by providing a structured harness to detect calibration drift, rubric regressions, and linting errors before code reaches production.

Core Features & Use Cases

  • Tier 1 Linting: Performs automated schema, frontmatter, and syntax checks on skills without requiring LLM calls.
  • Tier 2 Calibration: Uses an LLM judge to score calibration samples against established rubrics, catching drift in rubric definitions, judge models, or sample quality.
  • Use Case: Run a full pre-release validation pass across all skills to ensure that recent changes haven't introduced regressions in prompt-following or output quality.

Quick Start

Use the eval skill to run the Tier 1 linters and Tier 2 calibration smoke tests across all available skills.

Frequently Asked Questions about eval

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I test agent skills for calibration drift and rubric regressions?▼

Testing agent skills for calibration drift requires a multi-tier evaluation harness that runs static linting and LLM-based calibration checks against established rubrics to detect regressions before production deployment.

What is LLM-based calibration in quality assurance for agents?▼

LLM-based calibration in quality assurance uses a judge model to score agent outputs against defined rubric samples, detecting drift in prompt-following consistency and output quality during pre-release validation workflows.

Do I need the Anthropic API and Python SDK to run agent skill evaluations?▼

Yes, executing LLM judge-based scoring for agent skill evaluation requires Anthropic API access and the official Python SDK to perform calibration tests and detect rubric adherence issues.

Can I run linting checks on agent skills without making LLM API calls?▼

Yes, Tier 1 linting performs automated schema, frontmatter, and syntax checks on agent skills without requiring LLM calls, providing a fast first-pass validation layer before deeper calibration testing.

What's the best way to validate multiple agent skills before a release?▼

The best way to validate multiple agent skills pre-release is running a full evaluation pass that combines Tier 1 automated linting with Tier 2 LLM-based calibration smoke tests across all available skills to catch regressions.

Why does my agent skill evaluation fail on schema and syntax checks?▼

Agent skill evaluation fails on schema and syntax checks when automated linting detects frontmatter misconfigurations or structural errors, preventing downstream LLM-based calibration tests from executing reliably.