Description
Harness creator is an agent skill for building, auditing and improving the setup that keeps AI coding agents reliable in a repository. A harness is the set of files that tells an agent how to start, what it may change, how to check its work and how to resume across sessions. The skill says a useful harness has five subsystems: instructions in an AGENTS.md or CLAUDE.md file with the startup path, working rules and definition of done; state in a feature list and progress file recording the current feature, its status and the next step; verification through an init script or documented commands the agent must run before claiming done; scope, which records feature dependencies and done criteria to prevent overreach; and lifecycle, a session handoff file and an end-of-session routine so the next session can restart cleanly. The skill asks that the harness stay small enough for agents to follow it. It is not for choosing models, tuning prompts in isolation, designing chat interfaces or general app architecture. It is listed on skills.sh under the walkinglabs learn-harness-engineering repository, which has about 19.9K stars, with about 2.3K installs.…
Highlights
- Builds harnesses for AI coding agents
- Five subsystems: instructions, state, verification, scope and lifecycle
- Keeps AGENTS.md and CLAUDE.md startup rules
- Feature and progress tracking
- Session handoff routine
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harness-creator FAQ
What is a harness?
The set of instruction, state, verification, scope and handoff files that makes coding agents reliable in a repository.
Which files does it create?
Instruction files such as AGENTS.md or CLAUDE.md, a feature list and progress file, a verification script, and a session handoff file.
What is it not for?
Model selection, prompt tuning on its own, chat UI design or general app architecture.
How do I install it?
Run npx skills add https://github.com/walkinglabs/learn-harness-engineering --skill harness-creator.
What are the best harness-creator alternatives?
Popular alternatives to harness-creator include create-agentsmd, search-first and terminal-ops. See all harness-creator alternatives