Harness Engineering 1
by Roy Yuen
Design, debug, and harden AI control loops with explicit contracts and automated verification harnesses.
$8
· or 40 creditsSecure checkout via Stripe
Works with the AI tools you already use
About this skill
Advanced AI Control and Testing Framework
The Harness Engineering skill provides a professional-grade toolkit for developers building agentic workflows, LLM control loops, and autonomous systems. It solves the "black box" problem by implementing explicit execution contracts, multi-role orchestration (Planner/Executor/Verifier), and rigorous regression testing pipelines.
What it does
This skill transforms a standard AI agent into a precision engineering tool capable of:
- Defining Control Contracts: Locking down input/output invariants and authority boundaries before execution starts.
- Multi-Pass Orchestration: Managing complex Plan-Execute-Verify-Recover loops with stateful memory and tool budgets.
- Automated Verification: Using a dedicated CLI to run golden fixtures, replay traces, and inject adversarial tests.
- Evidence-Backed Reporting: Generating structured reports categorized by "Verified," "Inferred," or "Unknown" confidence levels.
Why use this skill?
Prompting an AI is easy; keeping it on the rails in production is hard. This skill provides a structured CLI companion and a set of Validation Ladders that ensure your agent doesn't skip safety gates or hallucinate success. It’s built for developers who need to harden their agent orchestration against edge cases and state drift.
Supported Workflows
Supports sophisticated agent patterns including deep reasoning loops, safety gates, trace capture for debugging, and automated scorecard generation for AI performance benchmarking.
The zip bundle included harness-engineering CLIDetails
How to install
Drop the file into your AI Agent. Works with Claude, Cursor, ChatGPT, and 20+ more.
Security Scanned
Passed automated security review
Permissions
Allowed Hosts
File Scopes
Creator
Frequently Asked Questions
More Premium Skills
designing-hybrid-context-layers
Architects the right retrieval strategy for every query — teaching your agent when to use RAG, a knowledge graph, or a temporal index instead of defaulting to vector search for everything.
synthesizing-institutional-knowledge
Builds the organizational memory schema your AI agent needs to answer why — capturing decision provenance, causal chains, and event context that embedding-based retrieval permanently discards.

Business Strategist
A framework-driven consultant for business diagnosis, market mapping, and pricing strategy.

Cinematic Landing Page Builder
Turn any business URL into a high-end animated landing page with 4K AI assets and GSAP animations via Cloudflare.