loop-evals

Design layered evaluation harnesses for long-running agent loops with deterministic gates.

1|Updated Jun 20, 2026
One-click install
npx skills add https://github.com/SollanSystems/loop-engineer --skill loop-evals
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: loop-evals
Source: https://github.com/SollanSystems/loop-engineer/tree/main/skills/loop-evals
Command: npx skills add https://github.com/SollanSystems/loop-engineer --skill loop-evals

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps you design an evaluation harness that proves whether a long-running agent loop is actually done, instead of merely confident or self-reported as successful.

Core Features & Use Cases

  • Layered Evaluation Design: Defines a seven-layer suite that orders deterministic checks before rubric-based judgment.
  • False-Completion Detection: Makes false-completion-rate a first-class metric so loops cannot claim success without evidence.
  • Judge Calibration: Sets up human-labeled calibration so model judges stay trustworthy over time.
  • Regression and Anti-Cheat Coverage: Builds repo-native regression cases, trace-based checks, and security probes to catch shortcut behavior and verifier gaming.
  • Use Case: Use this Skill when an agent keeps saying it is finished but the outputs are wrong, unverified, or underspecified.

Quick Start

Ask the skill to design the evaluation harness for your loop, identify the required verification layers, and draft the repo-native metrics and regression structure.

Frequently Asked Questions about loop-evals

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

FAQPage Schema
How do I stop my agent loop from falsely claiming it is finished?

To stop false completion in an agent loop, design an evaluation harness using a layered suite that treats false-completion-rate as a first-class metric. This enforces deterministic checks and trace-backed verification so loops cannot claim success without proof.

What is a layered evaluation harness for long-running agent systems?

A layered evaluation harness for agent systems is a seven-layer suite that orders deterministic gates and regression checks before rubric-based judgment. This ensures deterministic verification remains authoritative over subjective model outputs.

How do I calibrate rubric judges for agent evaluation?

Calibrate rubric judges for agent evaluation by setting up human-labeled calibration procedures alongside the evaluation suite. This maintains the trustworthiness of model judges over time by anchoring their assessments to verified human standards.

How do I prevent my agent from gaming its own verification checks?

Prevent agents from gaming verification checks by implementing security probes, anti-cheat checks, and trace-based checks within the evaluation harness. These mechanisms catch shortcut behavior and verifier gaming across trace-backed iterations.

Does this evaluation approach require repo-native regression cases?

Yes, this evaluation approach requires building repo-native regression cases and metrics. These are integrated directly into the evaluation suite to provide deterministic gates and accurate proof-of-done verification for the agent loop.