anthropic-reference

name	anthropic-reference
description	Reference guide for Anthropic official specifications on Skills and Subagents. Use when: (1) Verifying naming conventions, (2) Checking frontmatter field requirements, (3) Validating permission modes, (4) Understanding progressive disclosure patterns. Triggers: "anthropic guide", "official docs", "naming rules", "field requirements"

Anthropic Official Guide Reference

This Skill provides bundled core content from Anthropic official guidelines.

---

Skills Guide

→ See skills-guide.md for complete reference

Core Rules:

Field	Constraints
name	1-64 chars, lowercase + hyphens, matches directory name
description	1-1024 chars, functionality + usage timing

Progressive Disclosure:

1. Metadata (~100 tokens) - Always loaded
2. Instructions (< 5000 tokens) - When activated
3. Resources - When needed

---

Subagents Guide

→ See subagents-guide.md for complete reference

Core Fields:

Field	Description
name	Unique identifier in lowercase + hyphens
description	Claude auto-delegation trigger
tools	Allowed tools list
model	haiku/sonnet/opus/inherit
permissionMode	Permission mode

Permission Modes:

• default - Standard confirmation
• acceptEdits - Auto-accept edits
• plan - Read-only
• bypassPermissions - Skip all confirmations (caution)

---

Naming Rules

→ See naming-rules.md for validation rules

Common Rules:

• 1-64 characters
• Lowercase + numbers + hyphens only
• No hyphen at start/end
• No consecutive hyphens
• No reserved words: anthropic, claude

Validation:

[[ "$name" =~ ^[a-z][a-z0-9-]*[a-z0-9]$ ]] && [ ${#name} -le 64 ]

---

Quick Reference

Skill Frontmatter

---
name: skill-name
description: |
  What it does. Use when: (1) scenario, (2) scenario.
  Triggers: "keyword1", "keyword2"
---

Agent Frontmatter

---
name: agent-name
description: |
  Role description.
  Trigger: Use when condition.
tools: [Read, Grep, Glob]
model: sonnet
permissionMode: default
---

---

Validation Scenarios

name Validation

1. Lowercase + hyphens only?
2. 1-64 characters?
3. No hyphen at start/end?
4. No consecutive hyphens?
5. No reserved words?
6. (Skill) Matches directory name?

description Validation

1. 1-1024 characters?
2. Includes functionality description?
3. Includes trigger conditions?
4. Includes keywords?

Tool Permission Validation

1. Least privilege principle?
2. No Write/Edit for Read-only Agents?
3. No Task for Worker Agents?

---

Bundled References

All guidelines for this Skill are self-contained:

• skills-guide.md - Skills official guide core
• subagents-guide.md - Subagents official guide core
• naming-rules.md - Naming rules summary