rumo-explain SKILL.md skillA

rumo-explain from rumoii/rumo-engineering-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add rumoii/rumo-engineering-skills/rumo-explain@git:20261027.ae87b5e

Pins git:20261027.ae87b5e in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
rumoii/rumo-engineering-skills
Path
skills/rumo-explain/SKILL.md
Versions recorded
1
Latest version
git:20261027.ae87b5e, committed Oct 27, 2026
Size
4,251 bytes
Repository stars
9
License
MIT

Use when the user asks how code in the current repository works, such as a function, subsystem, data flow, or feature, why it was built or changed that way, or wants it walked through before changing or reviewing it ("讲讲 X 是怎么工作的", "为什么这么设计", "这块代码在干什么"). Answer read-only from the code and its history, in plain words, smallest complete answer first. Do not use for general concept questions with no repository code, for a defect or unexpected behavior (use rumo-debug), for reviewing a diff…

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

# Rumo Explain

Give the user a working mental model of a piece of this repository: what it is, how it runs, and why it has this shape, each claim traceable to code or history.

## Authority

Explaining is read-only. Do not edit files, run commands with side effects, or start services to answer; when an answer would need one of these, say what you would run and ask first. When the question turns out to describe something broken, say so and switch to `rumo-debug`.

## 1. Pin The Question

Name the exact target (file, symbol, feature, or flow) and why the user is asking: about to change it, reviewing it, debugging nearby, or new to it. Read that purpose from the conversation instead of quizzing the user. It decides the depth: a change needs the call chain and the contracts it must keep; onboarding needs the overall shape first. When the target is ambiguous, state your reading in one line and continue; the user can redirect.

## 2. Read The Real Path
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add rumoii/rumo-engineering-skills/rumo-explain@sha256:2741860498d34522

The line at the top of this page pins the label git:20261027.ae87b5e, 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_qvfyqwwun3gg4aki.svg)](https://markdownregistry.com/a/art_qvfyqwwun3gg4aki)

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

Versions

The registry has recorded 1 version of this file, committed on Oct 27, 2026.

versioncommittedcommitsizeaudit
git:20261027.ae87b5e latest2026-10-27 ae87b5e 4,251 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 (4251 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

rumoii/rumo-engineering-skills · 9 stars · license MIT · pushed 2026-11-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_qvfyqwwun3gg4aki
GET https://markdownregistry.com/api/v1/resolve?ref=rumoii/rumo-engineering-skills/rumo-explain
GET https://markdownregistry.com/api/v1/blob/2741860498d345229a81ab3f7ea4de8737982828c46f42b2beec37339c9b889e

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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