erd-designer SKILL.md skillA
erd-designer from kajitiluna/erd-designer is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add kajitiluna/erd-designer/erd-designer@git:20261010.7aa8d84Pins git:20261010.7aa8d84 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- kajitiluna/erd-designer
- Path
agent-plugin/skills/erd-designer/SKILL.md- Versions recorded
- 6
- Latest version
- git:20261010.7aa8d84, committed Oct 10, 2026
- First version recorded
- Jul 27, 2026
- Size
- 6,471 bytes
- Repository stars
- 27
- License
- Apache-2.0
Create and edit ERD Designer .erd files (database entity-relationship diagrams). Use when the user asks to design database tables, add or modify tables, columns, relations, indexes or memos in a .erd file, to export DDL from a .erd file, or to check whether a .erd design matches another revision or a live database.
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
# ERD Designer CLI Edit `.erd` files directly with the bundled CLI. No MCP server, VSCode or running app is required. Requires Node.js 22+. The CLI ships with this skill at `scripts/erd-agent.cjs`, **relative to the directory containing this SKILL.md**. This skill is self-contained (Agent Skills format), so it works from any agent that supports skills — e.g. Claude Code and GitHub Copilot CLI. In the examples below, `$CLI` stands for the resolved path: ``` CLI=<directory of this SKILL.md>/scripts/erd-agent.cjs ``` ## Workflow 1. **Discover tools** (names and one-line summaries): ``` node $CLI list-tools ``` 2. **Inspect a tool** before first use (full description + JSON schema of its arguments): ``` node $CLI describe <tool-name> ``` 3. **Run a tool** against a `.erd` file: ``` node $CLI run <tool-name> --file <path/to/file.erd> --args '<json>' ``` The result is printed as JSON on stdout. Mutating tools save the file in place. 4. **Validate** a `.erd` file (e.g. after external changes): ``` node $CLI validate --file <path/to/file.erd> ``` 5. **Check the design against reality** (optional, no MCP tools involved — see below): ``` …
Read the whole file at its exact version.
How to install
mdr add kajitiluna/erd-designer/erd-designer@sha256:c42ed3d3d4ec8c00The line at the top of this page pins the label git:20261010.7aa8d84, 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_pykascm7iosqj5c4)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Jul 27, 2026 and Oct 10, 2026, about one every 15 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261010.7aa8d84 latest | 2026-10-10 | 7aa8d84 | 6,471 B | A | view · diff |
| git:20260906.8ba507e | 2026-09-06 | 8ba507e | 6,053 B | A | view · diff |
| git:20260903.99fa1cc | 2026-09-03 | 99fa1cc | 4,107 B | A | view · diff |
| git:20260811.ae3f677 | 2026-08-11 | ae3f677 | 4,107 B | A | view · diff |
| git:20260801.ee16dfb | 2026-08-01 | ee16dfb | 3,630 B | A | view · diff |
| git:20260727.2145d7e | 2026-07-27 | 2145d7e | 3,656 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6471 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
kajitiluna/erd-designer · 27 stars · license Apache-2.0 · pushed 2026-11-01 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_pykascm7iosqj5c4 GET https://markdownregistry.com/api/v1/resolve?ref=kajitiluna/erd-designer/erd-designer GET https://markdownregistry.com/api/v1/blob/c42ed3d3d4ec8c00e8b55dd47456291e3d3eff285ee830b5a5d5880574adbb91
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.