codebase-explorer SKILL.md skillA

codebase-explorer from yashs33244/explorer is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add yashs33244/explorer/codebase-explorer@git:20261020.ce3b87c

Pins git:20261020.ce3b87c in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
yashs33244/explorer
Path
skills/codebase-explorer/SKILL.md
Versions recorded
4
Latest version
git:20261020.ce3b87c, committed Oct 20, 2026
First version recorded
Oct 4, 2026
Size
6,952 bytes
Repository stars
3
License
MIT

Turn a codebase, system or subject into an interactive beginner field guide with SVG diagrams (hand-drawn or clean style, 102 diagram types, real logos), step-by-step walkthroughs, interview questions, scrollable tables and a published artifact. Use when the user asks to explore, explain or onboard them onto a repo or technology "with diagrams", says "explorer", "field guide", "teach me this codebase", or wants an interview-style tour of how something works.

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

# Codebase Explorer

Builds one self-contained page that teaches a codebase the way an expert would interview a newcomer: for each topic a plain explanation, three hand-drawn SVG diagrams, a walk through the real files, a table of what to open, try-it commands and 8 to 10 interview questions with simple answers. It was first built for PostgreSQL (see `examples/postgres` in the explorer repo: 20 topics, 63 diagrams, 190 questions).

## When to use

- "Explain this repo/system to me from scratch, with diagrams."
- "Onboard me so I can contribute." "Quiz me on how X works."
- Any time the answer is better as pictures plus a guided tour than as chat text.

Skip it for a one-fact question or a small bug fix.

## What you need

- `node` (the builder has no dependencies) and Google Chrome (to look at diagrams; `scripts/render.sh`).
- The Artifact tool to publish. Load the `artifact-design` skill first, as that tool requires.
- Optional: `/graphify <repo>` to map a large repo first and pick topics from its communities.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add yashs33244/explorer/codebase-explorer@sha256:3053250b3ff5bdff

The line at the top of this page pins the label git:20261020.ce3b87c, 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_sxpmhey3taxcq2ho.svg)](https://markdownregistry.com/a/art_sxpmhey3taxcq2ho)

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

Versions

The registry has recorded 4 versions of this file, between Oct 4, 2026 and Oct 20, 2026, about one every 5 days.

versioncommittedcommitsizeaudit
git:20261020.ce3b87c latest2026-10-20 ce3b87c 6,952 BA view · diff
git:20261020.922a4672026-10-20 922a467 6,952 BA view · diff
git:20261004.4bf219c2026-10-04 4bf219c 6,951 BA view · diff
git:20261004.3e516a32026-10-04 3e516a3 6,408 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 (6952 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

yashs33244/explorer · 3 stars · license MIT · pushed 2026-10-20 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_sxpmhey3taxcq2ho
GET https://markdownregistry.com/api/v1/resolve?ref=yashs33244/explorer/codebase-explorer
GET https://markdownregistry.com/api/v1/blob/3053250b3ff5bdffc8383d23ea77d9f314dbb37db8d1d362fa7e6ae3886ec458

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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