Guidelines for selecting appropriate AI model (Sonnet vs Haiku) based on task complexity, ensuring cost efficiency while maintaining quality. Use when assigning work.
Selects optimal AI models for tasks based on complexity and cost efficiency.
/plugin marketplace add binee108/nine-step-workflow-plugin/plugin install nine-step-workflow@lilylab-marketplaceThis skill inherits all available tools. When active, it can use any tool Claude has access to.
Sonnet: Complex reasoning, architecture, security (2+ criteria) Haiku: Defined rules, repetitive tasks, simple commands (~95% cheaper)
Use Sonnet if 2+ apply:
Use Haiku if dominant:
Architecture/design? → YES → Sonnet
Multiple options? → YES → Sonnet
Security/performance? → YES → Sonnet
Defined rules only? → YES → Haiku
Detailed guide? → YES → Haiku
Large delegated? → YES → Sonnet
Simple commands? → YES → Haiku
Default: Sonnet (quality first)
Task: Add validation logic
→ Analysis: Complex rules + security + error handling
→ Decision: Sonnet (3 criteria met)
Task: Add tags to files
→ Analysis: Template exists, repetitive
→ Decision: Haiku (rule-following)
For detailed criteria, see reference.md For more examples, see examples.md
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.
This skill should be used when the user asks to "create an agent", "add an agent", "write a subagent", "agent frontmatter", "when to use description", "agent examples", "agent tools", "agent colors", "autonomous agent", or needs guidance on agent structure, system prompts, triggering conditions, or agent development best practices for Claude Code plugins.
This skill should be used when the user asks to "create a hook", "add a PreToolUse/PostToolUse/Stop hook", "validate tool use", "implement prompt-based hooks", "use ${CLAUDE_PLUGIN_ROOT}", "set up event-driven automation", "block dangerous commands", or mentions hook events (PreToolUse, PostToolUse, Stop, SubagentStop, SessionStart, SessionEnd, UserPromptSubmit, PreCompact, Notification). Provides comprehensive guidance for creating and implementing Claude Code plugin hooks with focus on advanced prompt-based hooks API.