command-development SKILL.md skillA
This file is byte-identical to the first copy the registry indexed, one of 4 indexed copies. Same content hash, so the same checks give both the same grade.
command-development from anthropics/claude-plugins-official is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add anthropics/claude-plugins-official/command-development@v0.2.0Pins v0.2.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- anthropics/claude-plugins-official
- Path
plugins/plugin-dev/skills/command-development/SKILL.md- Versions recorded
- 3
- Latest version
- v0.2.0, committed Mar 17, 2026
- First version recorded
- Nov 20, 2025
- Size
- 19,233 bytes
- Repository stars
- 43,118
- License
- Apache-2.0
This skill should be used when the user asks to "create a slash command", "add a command", "write a custom command", "define command arguments", "use command frontmatter", "organize commands", "create command with file references", "interactive command", "use AskUserQuestion in command", or needs guidance on slash command structure, YAML frontmatter fields, dynamic arguments, bash execution in commands, user interaction patterns, or command development best practices for Claude Code.
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
# Command Development for Claude Code > **Note:** The `.claude/commands/` directory is a legacy format. For new skills, use the `.claude/skills/<name>/SKILL.md` directory format. Both are loaded identically — the only difference is file layout. See the `skill-development` skill for the preferred format. ## Overview Slash commands are frequently-used prompts defined as Markdown files that Claude executes during interactive sessions. Understanding command structure, frontmatter options, and dynamic features enables creating powerful, reusable workflows. **Key concepts:** - Markdown file format for commands - YAML frontmatter for configuration - Dynamic arguments and file references - Bash execution for context - Command organization and namespacing ## Command Basics ### What is a Slash Command? A slash command is a Markdown file containing a prompt that Claude executes when invoked. Commands provide: - **Reusability**: Define once, use repeatedly - **Consistency**: Standardize common workflows - **Sharing**: Distribute across team or projects - **Efficiency**: Quick access to complex prompts ### Critical: Commands are Instructions FOR Claude …
Read the whole file at its exact version.
How to install
mdr add anthropics/claude-plugins-official/command-development@sha256:c55ad02cfe4cbb2aThe line at the top of this page pins the label v0.2.0, 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_hqxrdczhsqo7v6bo)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Nov 20, 2025 and Mar 17, 2026, about one every 59 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v0.2.0 latest | 2026-03-17 | 6b70f99 | 19,233 B | A | view · diff |
| v0.2.0 | 2026-02-05 | 2438937 | 18,941 B | A | view · diff |
| v0.2.0 | 2025-11-20 | 4ca561f | 18,941 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 (19233 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
anthropics/claude-plugins-official · 43,118 stars · license Apache-2.0 · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_hqxrdczhsqo7v6bo GET https://markdownregistry.com/api/v1/resolve?ref=anthropics/claude-plugins-official/command-development GET https://markdownregistry.com/api/v1/blob/c55ad02cfe4cbb2a947eea3b1ed5fa1871e722d627c3c6792c3ed87c10c4d7a8
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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