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Purpose: Guide creation of Claude Code agents following Anthropic official best practices.
Passed 18 of 21 test cases with the skill, and 5 of 21 without it.
and 25 more in the full report
14 fixed5 passed either way3 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 13 test cases the skill fixed. Same model, same prompt, with and without the skill.
Provide the CLI command used to validate a custom agent markdown file located at `.claude/agents/analytics-worker.md` against standard structural rules.
| Checked | Without skill | With skill |
|---|---|---|
| The command executes ./scripts/validate-agent.sh .claude/agents/analytics-worker.md. | Missed | Passed |
The instructions your model reads when the skill loads.
Purpose: Guide creation of Claude Code agents following Anthropic official best practices.
When to use: Creating new agents, refactoring existing agents, validating agent structure.
Agent .md (150 lines) Skill SKILL.md (varies)
├─ YAML frontmatter ├─ Technical workflows
├─ Identity & role ├─ Context7 checkpoints
├─ Authority & boundaries ├─ MCP integrations
├─ Workspace isolation ├─ Best practices
├─ Mandatory skill call ├─ Code patterns
└─ Quick reference └─ References/ (on demand)
Objective: Understand the agent's purpose and role in the system.
Steps:
test cases passed, vs 5 / 21 without
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