agent-harness-construction SKILL.md skillA
agent-harness-construction from frankxai/claude-skills-library is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add frankxai/claude-skills-library/agent-harness-construction@git:20261010.682b2cePins git:20261010.682b2ce in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- frankxai/claude-skills-library
- Path
absorbed/harness/agent-harness-construction/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261010.682b2ce, committed Oct 10, 2026
- Size
- 1,474 bytes
- Repository stars
- 47
- License
- MIT
Shape an agent's tools, observations, and recovery without adding a second coordinator. Use when defining a tool, a skill, a hook, or a worktree lane.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Build the harness, keep one chair An agent is a model plus the harness around it. The harness this estate already runs is the guide, the skills, the MCP servers, starlight-memory, the loops, the evals, the permissions, and the receipts. Add a piece only when one of those is missing. ## Lane - One writer per worktree. Branch `agent/<harness>/<scope>` from `origin/main`. - Reviewers stay read-only unless they have their own worktree. - Do not install Oh My OpenAgent, Ruflo, Oh My ClaudeCode, OpenClaw, Paperclip, Orchestrator.inc, or the ECC `full` profile as a coordinator. ## Tools - Names stay stable. Inputs stay narrow. - A result names status, a one-line summary, the next action, and the file or id produced. - An error names a likely cause, one safe retry, and the condition that means stop. ## Context - The default prompt stays small. Long procedures live in skills that load when asked. - Point at a file instead of pasting it. - Compact after the plan is on disk, not in the middle of an edit. ## Where this came from …
Read the whole file at its exact version.
How to install
mdr add frankxai/claude-skills-library/agent-harness-construction@sha256:24140b8b1a29ffa8The line at the top of this page pins the label git:20261010.682b2ce, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_oyfc5lb3myjxccfo)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 10, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (1474 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
frankxai/claude-skills-library · 47 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_oyfc5lb3myjxccfo GET https://markdownregistry.com/api/v1/resolve?ref=frankxai/claude-skills-library/agent-harness-construction GET https://markdownregistry.com/api/v1/blob/24140b8b1a29ffa8674ff12f70f530db6c646e0bffc19859874a0fb9ef6ee32c
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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