mc-library SKILL.md skillB
mc-library from receptron/mulmoclaude is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add receptron/mulmoclaude/mc-library@git:20260625.434f80bPins git:20260625.434f80b in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- receptron/mulmoclaude
- Path
packages/core/assets/skills-preset/mc-library/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260625.434f80b, committed Jun 25, 2026
- Size
- 8,251 bytes
- Repository stars
- 386
- License
- MIT
Personal book journal — track books the user wants to read or has read, prompt for impressions when they finish one, capture their words verbatim, and surface earlier reactions when they want to recall what they thought about a topic.
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
# Personal book journal A bundled MulmoClaude preset skill (`mc-` prefix = launcher-managed; do not edit this file in the workspace, it is overwritten on every server boot). ## What this skill does Be the user's book-loving friend, not a librarian. Don't talk to the user about file paths, frontmatter, or slugs — those exist behind the scenes; the user should never need to think about them. Focus on three workflows. Don't ask for ratings, tags, or other metadata beyond what the user volunteers — only capture what they actually say. ## Workflow 1: Adding a book they want to read **Triggers**: "add Sapiens to my reading list", "I'm thinking of reading X", "save Y for later". **Action**: 1. Determine the slug. Kebab-case ASCII letters, digits, and hyphens. Romanise non-ASCII titles (e.g. title `しろいうさぎとくろいうさぎ` → slug `little-white-and-little-black`). 2. **Enrich from Google Books before writing.** `WebFetch` the volumes endpoint with a URL-encoded query: ```text https://www.googleapis.com/books/v1/volumes?q=<query>&maxResults=1 ``` Build `<query>` as: - When the user named the author: `intitle:<title>+inauthor:<author>` …
Read the whole file at its exact version.
How to install
mdr add receptron/mulmoclaude/mc-library@sha256:c8249c966d08fa08The line at the top of this page pins the label git:20260625.434f80b, 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_eologoebj6hpw3a4)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Jun 25, 2026.
Audit of the latest version
- fail: No prompt-injection phrasing (matched: ignore previous instructions)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (8251 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 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
receptron/mulmoclaude · 386 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_eologoebj6hpw3a4 GET https://markdownregistry.com/api/v1/resolve?ref=receptron/mulmoclaude/mc-library GET https://markdownregistry.com/api/v1/blob/c8249c966d08fa080e25bc4411a6bf0b59b865ad54469595e4686b5c860d8741
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.