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TOON Format Specialist - YAML-based token-efficient agent/workflow definitions inspired by BMAD Method patterns
Passed 22 of 22 test cases with the skill, and 10 of 22 without it.
and 16 more in the full report
12 fixed10 passed either way0 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 12 test cases the skill fixed. Same model, same prompt, with and without the skill.
In our agent YAML definition, we want a menu command that directly runs 'npm test' in the terminal. Which key in the menu array item should specify direct shell execution?
| Checked | Without skill | With skill |
|---|---|---|
| The direct shell execution command is defined using the exec key. | Missed | Passed |
The instructions your model reads when the skill loads.
TOON v4.0 = YAML-based hierarchical format inspired by BMAD Method
TOON (Token-Optimized Object Notation) adopts BMAD's clean YAML patterns for agent and workflow definitions. This provides 40-60% token reduction while maintaining full expressiveness.
Key Insight: BMAD's *.agent.yaml and workflow.yaml ARE the optimal token-efficient format.
Core Benefits:
{project-root}, {config_source}:key)# {agent-name}.agent.yaml
agent:
metadata:
id: "{bmad_folder}/module/agents/{name}.md"
name: "Display Name"
title: "Agent Title"
icon: "emoji"
module: "module-code" # Optional: for module-scoped agents
persona:
role: "Expert Title"
identity: "Background, expertise, and approach description"
communication_style: "How the agent communicates with users"
principles: |
- Core principle 1
- Core principle 2
- Core principle 3
test cases passed, vs 10 / 22 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.