agent-eval-harness

Capture AI agent trajectories and emit standardized JSONL outputs.

6|1|Updated Jan 15, 2026
One-click install
npx skills add https://github.com/plaited/agent-eval-harness --skill agent-eval-harness
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: agent-eval-harness
Source: https://github.com/plaited/agent-eval-harness/tree/main/.plaited/skills/agent-eval-harness
Command: npx skills add https://github.com/plaited/agent-eval-harness --skill agent-eval-harness

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill provides a CLI-driven framework to capture agent trajectories, apply schema-driven adapters, and emit standardized JSONL outputs for downstream scoring and evaluation.

Core Features & Use Cases

  • Trajectory capture: Run prompts against headless adapters to collect full trajectories, including thoughts, tools, and plans, in JSONL.
  • Grading and analysis: Calibrate graders, summarize outputs, and compare configurations across runs.
  • Pipeline-friendly: Integrates into CI, supports multiple commands (capture, extract, grade, summarize, calibrate, balance, compare).

Quick Start

Use the agent-eval-harness to capture prompts with a headless adapter and produce results.jsonl for analysis.

Frequently Asked Questions about agent-eval-harness

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

FAQPage Schema
How do I capture AI agent trajectories for evaluation?▼

To evaluate AI agent interactions, this Skill runs prompts against headless adapters and captures full interaction trajectories, including thoughts, tools, and plans, into standardized JSONL outputs for downstream scoring.

How do I compare AI agent configurations across multiple runs?▼

You can compare AI agent configurations by using the built-in compare command, which summarizes and evaluates standardized JSONL outputs across multiple runs to highlight performance differences.

Does agent trajectory evaluation require a specific JavaScript runtime?▼

Yes, this agent trajectory evaluation requires a Bun-compatible runtime, along with project schemas, headless adapters, and a configured execution environment to run the capture, extract, and grade tasks.

What is the best way to calibrate graders for AI agent outputs?▼

Calibrating graders for AI agent outputs is handled by a dedicated CLI command that applies schema-driven adapters to standardize interaction data, ensuring accurate and consistent scoring across evaluation runs.

Can I integrate AI agent evaluation pipelines into CI?▼

Yes, you can integrate AI agent evaluation pipelines into CI. This framework is pipeline-friendly, supporting CLI commands like capture, grade, and summarize to automate standardized JSONL output generation within continuous integration workflows.

Why do I need to validate reference solutions in AI agent evaluation?▼

Validating reference solutions in AI agent evaluation ensures your grading mechanisms reliably assess agent performance against known correct outcomes. This Skill supports reference-solution validation within schema-driven environments to verify evaluation accuracy.

Related Skills