repo-recon SKILL.md skillA
repo-recon from jpeetz/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jpeetz/agent-skills/repo-recon@v1.0.0Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jpeetz/agent-skills
- Path
skills/development/repo-recon/SKILL.md- Versions recorded
- 2
- Latest version
- v1.0.0, committed Oct 28, 2026
- First version recorded
- Sep 14, 2026
- Size
- 8,641 bytes
- Repository stars
- 16
- License
- none declared
Use this skill when you need to map an unfamiliar codebase before changing anything. Runs a systematic five-step recon pass — read the map, learn the commands, trace one flow end-to-end, note conventions then match them, and write it down — so you understand architecture, build/test commands, and code conventions before making a single edit. Prevents broken builds, misfiled changes, and convention-violating PRs caused by search-before-assuming. Activates on "where do I start…
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
# Repo Recon Systematically map an unfamiliar codebase before changing anything. The recon pass is a short, bounded sequence — minutes, not hours — that front-loads the understanding you would otherwise pay for painfully later in broken builds, rejected PRs, and rewrites. It is the "before" half of every safe edit. ## Overview Reconnaissance is cheap; guessing is expensive. Before you touch a single line, spend a few minutes answering five questions: 1. What is this repo and how is it laid out? 2. How do I build, test, and run it? 3. Where does one real flow live, and how does it work end-to-end? 4. What conventions must my code match? 5. Where did I write all of this down? The five-step pass below answers them in order. The output is a written recon note: a map, a command cheat-sheet, one traced flow, and a convention list. That note is the deliverable — not code changes. ## When to Use Use this skill when: - You are working in a repository for the first time. - You are returning to a repo after a long absence (memory is stale). - The codebase is large, old, or has no documentation. - You must make a change that crosses module boundaries (new feature, …
Read the whole file at its exact version.
How to install
mdr add jpeetz/agent-skills/repo-recon@sha256:639a99d0b19dc5eaThe line at the top of this page pins the label v1.0.0, 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_mhrseu4xv52wodw4)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Sep 14, 2026 and Oct 28, 2026, about one every 44 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.0.0 latest | 2026-10-28 | e711966 | 8,641 B | A | view · diff |
| v1.0.0 | 2026-09-14 | c69b97e | 8,642 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 (8641 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
jpeetz/agent-skills · 16 stars · license none declared · pushed 2026-10-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_mhrseu4xv52wodw4 GET https://markdownregistry.com/api/v1/resolve?ref=jpeetz/agent-skills/repo-recon GET https://markdownregistry.com/api/v1/blob/639a99d0b19dc5ea9ced1fc2d04fc83a1df022e047ba71d392d544c64dce2bcc
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.