harness-sync skillA
harness-sync is agent-read markdown (skill) from harnessprotocol/harness-kit: Use when user invokes /harness-sync or wants to sync AI tool configurations across any of the 8 supported targets (Claude Code, Cursor, GitHub Copilot, Codex, OpenCode, Windsurf, Gemini CLI, Junie). Inventories installed skills, instruction blocks, and MCP configs on all detected platforms, reports divergence, and lets the user push or pull changes. Push path reuses harness-compile logic. Pull path updates harness.yaml and recompiles. Never overwrites without explicit confirmation..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
How to install
mdr add harnessprotocol/harness-kit/harness-sync@git:20260727.387edcfmdr add harnessprotocol/harness-kit/harness-sync@sha256:3f931cedbdfc74e2Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_pr7wrtutqeqtytoo)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260727.387edcf latest | 2026-07-27 | 387edcf | 18,054 B | A | view · diff |
| git:20260313.da67736 | 2026-03-13 | da67736 | 14,884 B | A | view |
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 (18054 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
harnessprotocol/harness-kit · 10 stars · license Apache-2.0 · pushed 2026-09-18 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_pr7wrtutqeqtytoo GET https://markdownregistry.com/api/v1/resolve?ref=harnessprotocol/harness-kit/harness-sync GET https://markdownregistry.com/api/v1/blob/3f931cedbdfc74e29b994697bc23628e0bf673e481b9d62744ceb3ad53088586
Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.