tech-diagram SKILL.md skillA

tech-diagram from coder-xieshijie/dev-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add coder-xieshijie/dev-skills/tech-diagram@git:20261028.abf7ed2

Pins git:20261028.abf7ed2 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
coder-xieshijie/dev-skills
Path
skills/tech-diagram/SKILL.md
Versions recorded
5
Latest version
git:20261028.abf7ed2, committed Oct 28, 2026
First version recorded
Oct 27, 2026
Size
11,481 bytes
Repository stars
5
License
MIT

Draws hand-drawn style technical diagrams (architecture with trust zones, request and data flows, sequences, lifecycles) as an editable HTML source and a layout-checked PNG for design docs, PR descriptions, reviews and slides. Use when asked to draw, redraw or fix an architecture, flow or sequence diagram (架构图, 流程图, 时序图), to plan the figures of a design document, or to keep several diagrams of one system consistent.

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

# Tech Diagram

Each figure is one HTML file: rough.js hand-drawn shapes with serif print text, drawn by a `main()` function on top of a fixed set of helpers. `scripts/render.mjs` turns it into a PNG and checks the layout. The look is fixed so that every figure of a system, across documents, reads as one set.

## Rules that hold throughout

1. **Draw only what the sources say.** Every node, arrow and boundary comes from the user's text, a document they gave, or code and configuration you read. Write them into the `// Sources:` comment at the top of `main()` (`file:line`, document section, or "user"). Do not complete the system: a component the sources do not mention stays out, however likely it is to exist. When the diagram describes code, read the code behind each arrow; when the text and the code disagree, draw what the code does and tell the user where they differ. Within the figure's question, draw all of what the sources say: every part of a container the figure opens, and every path the text names, or the figure or table that has it.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add coder-xieshijie/dev-skills/tech-diagram@sha256:c26cfa036d0b1f5d

The line at the top of this page pins the label git:20261028.abf7ed2, 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_3zbog6ov6btqvxlq.svg)](https://markdownregistry.com/a/art_3zbog6ov6btqvxlq)

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

Versions

The registry has recorded 5 versions of this file, between Oct 27, 2026 and Oct 28, 2026, more than one a day.

versioncommittedcommitsizeaudit
git:20261028.abf7ed2 latest2026-10-28 abf7ed2 11,481 BA view · diff
git:20261027.d9b50422026-10-27 d9b5042 11,354 BA view · diff
git:20261027.45387e22026-10-27 45387e2 9,382 BA view · diff
git:20261027.f80c8972026-10-27 f80c897 9,130 BA view · diff
git:20261027.cc687e32026-10-27 cc687e3 8,138 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 (11481 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

coder-xieshijie/dev-skills · 5 stars · license MIT · pushed 2026-10-31 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_3zbog6ov6btqvxlq
GET https://markdownregistry.com/api/v1/resolve?ref=coder-xieshijie/dev-skills/tech-diagram
GET https://markdownregistry.com/api/v1/blob/c26cfa036d0b1f5dee875c9223f9db1912fe04b35b2bb7d4ea22f8ef5ad51dcd

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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Every file in coder-xieshijie/dev-skills

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