setup-harness SKILL.md skillA
setup-harness from firzus/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add firzus/agent-skills/setup-harness@git:20261014.e81ab53Pins git:20261014.e81ab53 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- firzus/agent-skills
- Path
skills/engineering/setup-harness/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261014.e81ab53, committed Oct 14, 2026
- First version recorded
- Oct 12, 2026
- Size
- 5,915 bytes
- Repository stars
- 4
- License
- MIT
Set up personal instructions for Codex (app and CLI), Cursor, or Claude Code, with reviewed content, native instruction loading, and no backups or system-prompt replacement.
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
# Set up personal harness instructions Create or update personal instructions through each selected harness's native mechanism. Keep its built-in system prompt intact. This skill changes only the selected instruction destinations, leaving configuration and legacy files unchanged. It requires file-editing access for file targets; no installer or PowerShell dependency. ## 1. Select harnesses and languages Ask which harness or harnesses to configure. Offer Codex, Cursor, and Claude Code; reuse selections already explicit in this request rather than asking again. Codex is one choice covering the app and CLI, which share user instructions under the same `CODEX_HOME`. The current host is not an implicit selection. Confirm the machine/profile when it affects the destination. Default to personal, cross-project scope. Ask for the languages used for conversation/reports and code/comments/Git text. One answer may cover both; reuse explicit choices made for this setup. Do not infer permanent preferences from the chat's language. For each selected harness, read its section in [native destinations](references/harnesses.md) to resolve supported loading and …
Read the whole file at its exact version.
How to install
mdr add firzus/agent-skills/setup-harness@sha256:3524f877f15cc578The line at the top of this page pins the label git:20261014.e81ab53, 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_sqg3cuvztqitgzaf)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Oct 12, 2026 and Oct 14, 2026, about one every 2 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261014.e81ab53 latest | 2026-10-14 | e81ab53 | 5,915 B | A | view · diff |
| git:20261012.eff4106 | 2026-10-12 | eff4106 | 5,949 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 (5915 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
firzus/agent-skills · 4 stars · license MIT · pushed 2026-11-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_sqg3cuvztqitgzaf GET https://markdownregistry.com/api/v1/resolve?ref=firzus/agent-skills/setup-harness GET https://markdownregistry.com/api/v1/blob/3524f877f15cc5788113afb032dbedcfdfa2301ef78383ed123480c82194ffab
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.