subagents-creator

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Guide for defining and using Claude subagents effectively. Use when (1) creating new subagent types, (2) learning how to delegate work to specialized subagents, (3) improving subagent delegation prompts, (4) understanding subagent orchestration patterns, or (5) debugging ineffective subagent usage.

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Sourcemineru98/skills-store

Added on2026-02-15

NPX Install

npx skill4agent add mineru98/skills-store subagents-creator

SKILL.md Content

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Subagents Creator

This skill provides guidance for defining, using, and improving Claude subagents—the specialized agents that handle specific domains like

explore

librarian

oracle

, and

frontend-ui-ux-engineer

Quick Start

Delegating Work

When delegating to subagents, use the mandatory 7-section structure:

1. TASK: Atomic, specific goal (one action per delegation)
2. EXPECTED OUTCOME: Concrete deliverables with success criteria
3. REQUIRED SKILLS: Which skill to invoke
4. REQUIRED TOOLS: Explicit tool whitelist (prevents tool sprawl)
5. MUST DO: Exhaustive requirements - leave NOTHING implicit
6. MUST NOT DO: Forbidden actions - anticipate and block rogue behavior
7. CONTEXT: File paths, existing patterns, constraints

Choosing a Subagent

See subagent-types.md for detailed guidance on which subagent to use:

explore
: Contextual grep for codebases
librarian
: Reference search (docs, OSS, web)
oracle
: Deep reasoning for architecture/complex decisions
frontend-ui-ux-engineer
: Visual UI/UX changes

Defining New Subagents

Only create subagents when: The task domain has distinct tooling, expertise, or patterns that benefit from specialization.

See delegation-patterns.md for:

Subagent definition templates
When to create a new subagent vs using existing ones
Naming and description guidelines

Common Pitfalls

See common-pitfalls.md for:

Vague delegation prompts and why they fail
Over-delegating trivial tasks
Subagent misalignment with task type
Anti-patterns in agent orchestration

Best Practices

One action per delegation: Combine tasks in parallel calls, not one call
Be exhaustive: "MUST DO" and "MUST NOT DO" sections prevent drift
Background everything: Use
```
background_task
```
for
```
explore
```
and
```
librarian
```
Explicit tool lists: Prevent subagents from using unauthorized tools
Verify results: Check that delegated work meets expectations before proceeding

Delegation Example

python

# GOOD: Specific, exhaustive
background_task(
    agent="explore",
    prompt="""
    1. TASK: Find all authentication implementations
    2. EXPECTED OUTCOME: List of files with auth logic, patterns used
    3. REQUIRED SKILLS: explore
    4. REQUIRED TOOLS: Grep, Read
    5. MUST DO: Search for 'jwt', 'session', 'auth' patterns; identify middleware; list all endpoints
    6. MUST NOT DO: Don't modify any files; don't run build/test commands
    7. CONTEXT: Working in ./src directory, looking for Express.js patterns
    """
)

# BAD: Vague, implicit expectations
background_task(
    agent="explore",
    prompt="Find auth stuff in the codebase"
)

Reference Files

subagent-types.md - When to use each subagent type
delegation-patterns.md - Prompt templates and patterns
common-pitfalls.md - Anti-patterns and how to avoid them