This AI agent skill equips developers with comprehensive evaluation tools to analyze and optimize agent behavior effectively. It is designed to measure an agent's actual performance through versatile evaluation strategies, from building evaluation suites to converting production traces into regression fixtures.
What this skill does
Facilitates the creation of evaluation suites for AI agents.
Judges an agent's trajectory, not just the final output.
Converts production traces into regression fixtures.
Calibrates LLM judges against human labels efficiently.
Supports release gating based on offline evaluations.
Utilizes observability primitives (run, trace, thread) across single-step, full-turn, and multi-turn granularities.
Employs pass-fail rubrics with scalar scores.
Enables cheap code checks before model judges.
Provides checker nodes as evaluators within AI processing graphs.
Simulates users with adversarial personas to test agent robustness.
Manages annotation queues effectively.
Facilitates appropriate instrumentation for comprehensive evaluation.
Who it is for
Developers using AI coding agents like Claude Code, Cursor, and Codex.
Teams seeking in-depth analysis and debugging of AI agent behavior.
Quality assurance specialists focusing on AI evaluation metrics.
Use cases
Developers building evaluation suites to test AI agent capabilities.
Teams ensuring consistent performance through trajectory evaluations.
Organizations turning production activity into regression testing environments.
Assessment teams conducting offline evaluations prior to new releases.
Technical details
Integrates with tools like a2a, aiapplication, and agent-evals.
Operates within various evaluation contexts, including offline, online, and ad-hoc.
Leverages pass-fail rubrics to offer measurable evaluation outcomes.
Enacts checker nodes to serve as evaluators inside processing graphs.
Source & Licence
This package is built on open-source work published by ssheleg (ssheleg/agent-stack) and distributed under MIT. The original licence text and copyright notice are included in your download.
Personal and commercial use, modification and redistribution are permitted, provided the original copyright and licence notice are retained.
Your purchase covers curation, licence verification, packaging, documentation and instant delivery. It does not grant exclusive rights to the underlying open-source code, which remains available under its original licence.
Delivery & Support
Delivery: instant — a secure download link is emailed to you as soon as payment is confirmed.
Format: ZIP archive containing the skill files, documentation and the original licence.
Updates: updates are included only where stated on this page.
Refunds
This is a digital product delivered immediately after purchase. By completing your order you request immediate delivery and acknowledge that, once the download has been accessed, the statutory right to cancel no longer applies to the extent permitted by law. Refund requests are handled in accordance with our published Refund Policy.
Claude, Codex, Gemini and Cursor are trademarks of their respective owners. MCP Cart is an independent marketplace and is not affiliated with, endorsed by, or sponsored by any of them. Compatibility references describe interoperability only.