harness-compile SKILL.md skillA

harness-compile from harnessprotocol/harness-kit is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add harnessprotocol/harness-kit/harness-compile@git:20260727.387edcf

Pins git:20260727.387edcf in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
harnessprotocol/harness-kit
Path
plugins/harness-share/skills/harness-compile/SKILL.md
Versions recorded
3
Latest version
git:20260727.387edcf, committed Jul 27, 2026
First version recorded
Mar 13, 2026
Size
20,476 bytes
Repository stars
10
License
Apache-2.0

Use when user invokes /harness-compile or wants to compile a harness.yaml into native config files for Claude Code, Cursor, GitHub Copilot, Codex, OpenCode, Windsurf, Gemini CLI, or JetBrains Junie. Generates CLAUDE.md, AGENT.md, .mcp.json, .cursor/rules/, .vscode/mcp.json, AGENTS.md, and related files from a single harness.yaml source. Supports --target, --dry-run, and --clean flags.

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

# Compile a Harness Configuration

You are compiling a `harness.yaml` file into native configuration files for one or more AI coding tools. Each target tool gets its own idiomatic output: instruction files, MCP server configs, skill files, and permission settings.

This skill implements the Harness Protocol compiler mapping defined at harnessprotocol.ai. The output is deterministic — the same `harness.yaml` always produces the same files.

**The 8 supported targets:** `claude-code`, `cursor`, `copilot`, `codex`, `opencode`, `windsurf`, `gemini`, `junie`. The last five (Codex, OpenCode, Windsurf, Gemini CLI, Junie) all read operational instructions from a single shared `AGENTS.md` file at the project root — see Step 3 for how that sharing works.

## Workflow Order (MANDATORY)

**Follow these steps in order. Do not skip any step.**

---

### Step 1: Find harness.yaml

Check for the harness file in this order:
1. A path provided by the user after `/harness-compile` (e.g., `/harness-compile ~/dotfiles/harness.yaml`)
2. `./harness.yaml` in the current directory

If no file is found at either location, tell the user:
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add harnessprotocol/harness-kit/harness-compile@sha256:62017ed1d1b5421d

The line at the top of this page pins the label git:20260727.387edcf, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_7bgvmeu6dwh4iz6e.svg)](https://markdownregistry.com/a/art_7bgvmeu6dwh4iz6e)

5 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between Mar 13, 2026 and Jul 27, 2026, about one every 68 days.

versioncommittedcommitsizeaudit
git:20260727.387edcf latest2026-07-27 387edcf 20,476 BA view · diff
git:20260727.4f203b42026-07-27 4f203b4 15,412 BA view · diff
git:20260313.da677362026-03-13 da67736 15,412 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (20476 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

GitHub

harnessprotocol/harness-kit · 10 stars · license Apache-2.0 · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_7bgvmeu6dwh4iz6e
GET https://markdownregistry.com/api/v1/resolve?ref=harnessprotocol/harness-kit/harness-compile
GET https://markdownregistry.com/api/v1/blob/62017ed1d1b5421d0daa10f8772c11b58dc4e33dda1a465c5e50838344a26c7e

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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Every file in harnessprotocol/harness-kit

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