create-agent-harness SKILL.md skillB
create-agent-harness from afonsoft/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add afonsoft/skills/create-agent-harness@v2.3.0Pins v2.3.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- afonsoft/skills
- Path
skills/create-agent-harness/SKILL.md- Versions recorded
- 13
- Latest version
- v2.3.0, committed Sep 20, 2026
- First version recorded
- Sep 5, 2026
- Size
- 52,159 bytes
- Repository stars
- 14
- License
- MIT
Use when initializing or migrating an AI agent harness in a repository.
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
# Create Agent Harness Generate — or migrate — the agent harness of a repository into the modern **Claude Code + Agent Skills** structure. A harness is everything the model cannot do alone: orientation before acting, state that survives context resets, and computational guardrails that cannot be ignored. The skill discovers the repository, migrates any legacy harness, generates the missing artifacts and validates the result with deterministic commands. > Scope: primary `CLAUDE.md` plus `.claude/`. The same source also serves Devin CLI (which reads `.claude/` natively when `read_config_from.claude` is set). For Cursor, OpenCode, Gemini and Antigravity generate thin platform-specific directories that reference `.claude/` where possible. Legacy structures are migrated into `.claude/` and the originals removed. ## Supported Platforms | Platform | Config file | Skills dir | Hooks dir | Notes | |----------|-------------|------------|-----------|-------| | Claude Code | `CLAUDE.md` | `.claude/skills/` | `.claude/hooks/` | Primary target, single source of truth | | Devin CLI | `AGENTS.md` | `.devin/skills/` | `.devin/hooks/` | Reads `.claude/` natively via `read_config_from` | …
Read the whole file at its exact version.
How to install
mdr add afonsoft/skills/create-agent-harness@sha256:8092e60eec0ba6ccThe line at the top of this page pins the label v2.3.0, 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_4rcwsgkkwu2eanlp)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 13 versions of this file, between Sep 5, 2026 and Sep 20, 2026, about one every day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v2.3.0 latest | 2026-09-20 | dc353de | 52,159 B | B | view · diff |
| v2.2.0 | 2026-09-15 | 9e914f7 | 51,170 B | B | view · diff |
| v2.1.1 | 2026-09-12 | cf88aa9 | 49,420 B | B | view · diff |
| v2.1.0 | 2026-09-12 | f327983 | 49,420 B | B | view · diff |
| v2.0.2 | 2026-09-11 | ba4965c | 49,420 B | B | view · diff |
| v2.0.2 | 2026-09-11 | 1f72d60 | 50,136 B | B | view · diff |
| v2.0.1 | 2026-09-11 | 443d2e6 | 50,136 B | B | view · diff |
| v2.0.1 | 2026-09-11 | 8932766 | 49,932 B | B | view · diff |
| v2.0.1 | 2026-09-10 | 8136228 | 49,801 B | B | view · diff |
| v2.0.1 | 2026-09-08 | ffabb98 | 49,566 B | B | view · diff |
| v2.0.1 | 2026-09-08 | aec9350 | 49,581 B | B | view · diff |
| v1.1.0 | 2026-09-05 | 9fa4cd6 | 24,999 B | B | view · diff |
| v1.1.0 | 2026-09-05 | b5ea9c8 | 24,959 B | B | view |
Audit of the latest version
- fail: No instruction to read or print local credentials (matched: Read(./.env)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (52159 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 base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
afonsoft/skills · 14 stars · license MIT · pushed 2026-10-27 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4rcwsgkkwu2eanlp GET https://markdownregistry.com/api/v1/resolve?ref=afonsoft/skills/create-agent-harness GET https://markdownregistry.com/api/v1/blob/8092e60eec0ba6cc5ea22f47e02e2c751a11b6ead5642d73ed6eb85f7142effa
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.