coco-research/coco · skills/c4-architecture/SKILL.md

c4-architecture skillA

c4-architecture is agent-read markdown (skill) from coco-research/coco: Generate architecture documentation using C4 model Mermaid diagrams. Use when asked to create architecture diagrams, document system architecture, visualize software structure, or generate context/container/component/deployment diagrams..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add coco-research/coco/c4-architecture@v0.1.0
Exact content
mdr add coco-research/coco/c4-architecture@sha256:a8a8d19bdc439618

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_dlwe4avapyahmxyt.svg)](https://markdownregistry.com/a/art_dlwe4avapyahmxyt)

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Versions

versioncommittedcommitsizeaudit
v0.1.0 latest2026-04-26 d53cc6c 10,856 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, 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 (10856 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

coco-research/coco · 280 stars · license NOASSERTION · pushed 2026-09-17 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_dlwe4avapyahmxyt
GET https://markdownregistry.com/api/v1/resolve?ref=coco-research/coco/c4-architecture
GET https://markdownregistry.com/api/v1/blob/a8a8d19bdc43961856c722cc93a247284dd0cc38ab9b6b94271d677bd9f1d758

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.