Manage Claude Code Agents
Create and manage specialized subagents with custom capabilities, tool access, and expertise domains. Covers agent structure, system prompts, and MCP integration.
name: manage-agents description: Create, modify, and manage Claude Code subagents with specialized expertise. Use when you need to "work with agents", "create an agent", "modify an agent", "set up a specialist", "I need an agent for [task]", or "agent to handle [domain]". Covers agent file format, YAML frontmatter, system prompts, tool restrictions, MCP integration, model selection, and testing. allowed-tools:
- Read
- Write
- Grep
- Glob
- Bash
Manage Agents
Create and manage specialized Claude Code subagents with custom capabilities, tool access, and expertise domains.
Use this skill when you need to:
- Create new subagents for specialized tasks
- Modify existing agent configurations
- Set up domain experts (Python, Neo4j, Testing, etc.)
- Configure tool access and MCP server permissions
- Understand agent structure and best practices
Quick Start
To create a new agent:
- Understand the Need: What specialized capability or domain expertise is needed?
- Choose Location: Project-level (.claude/agents/) or user-level (~/.claude/agents/)
- Define Configuration: Name, description, model, tools, and permissions
- Write System Prompt: Clear instructions for the agent's specialized role
- Test & Validate: Invoke with @agent-name and verify behavior
Table of Contents
Core Sections
-
- Step 1: Analyze Requirements - Determine expertise domain, tool needs, and location
- Step 2: Create Agent File - Choose project vs user location
- Step 3: Write Agent Configuration - YAML frontmatter template
- Step 4: Configure Tool Access - Explicit tools, all tools, or no tools
- Step 5: Configure MCP Access - Specific servers, all servers, or all resources
- Step 6: Select Model - Sonnet, Opus, or Haiku based on complexity
- Step 7: Write System Prompt - Clear, actionable, quality-focused instructions
- Step 8: Test the Agent - Verify behavior and tool access
- Step 9: Document Integration - Update dispatch.md and CLAUDE.md
-
- Pattern 1: Domain Expert - Read-only analysis and recommendations
- Pattern 2: Code Generator - Write access with quality gates
- Pattern 3: Orchestrator - Planning agent that delegates
- Pattern 4: Quality Guardian - Read-only validation
- Pattern 5: Integration Specialist - MCP-focused agent
Supporting Resources
- Configuration Reference - Complete field documentation
Utility Scripts
- Agent Detection - Detect @agent-name patterns in prompts
- Agent Memory Creation - Create MCP memory entries for agents
- Agent Validation - Validate agent file format and configuration
Advanced Topics
- Troubleshooting
- Validation - Validate agent files with script
- Quality Checklist - Pre-finalization checklist
- Advanced: Agent Chaining - Agent-to-agent delegation
- Advanced: Dynamic Selection - Autonomous agent selection
- Integration with This Project - Project-specific guidance
Instructions
Step 1: Analyze Requirements
Before creating an agent, determine:
- Expertise Domain: What specialized knowledge does this agent need?
- Tool Requirements: Which tools should be allowed/restricted?
- Context Needs: Does it need access to project files, memory, or MCP servers?
- Location: Project-specific (.claude/agents/) or user-wide (~/.claude/agents/)?
- Model Selection: Does this need Sonnet, Opus, or Haiku?
Step 2: Create Agent File
Project Agent (checked into git):
# Location: .claude/agents/my-specialist.md
User Agent (personal, not in git):
# Location: ~/.claude/agents/my-specialist.md
Priority: Project agents override user agents with the same name.
Step 3: Write Agent Configuration
Use this template:
---
name: agent-name
description: Clear description of what this agent does and when to use it
model: claude-sonnet-4
tools:
- Read
- Write
- Grep
- Glob
- Bash
mcp_servers:
- server-name
allow_all_tools: false
allow_all_mcp_servers: false
allow_mcp_resources_from_all_servers: false
---
# Agent Name - Specialized Role
You are a specialized agent focused on [domain/task]. Your expertise includes:
- [Key capability 1]
- [Key capability 2]
- [Key capability 3]
## Your Responsibilities
1. **[Primary Responsibility]**: Clear description
2. **[Secondary Responsibility]**: Clear description
3. **[Quality Standards]**: What standards you uphold
## Tools Available
You have access to:
- [Tool 1]: [How to use it]
- [Tool 2]: [How to use it]
- [MCP Server]: [What it provides]
## Workflow
When invoked, follow these steps:
1. [Step 1]
2. [Step 2]
3. [Step 3]
## Quality Gates
Before completing work:
- [ ] [Quality check 1]
- [ ] [Quality check 2]
- [ ] [Quality check 3]
## Integration with Skills
You can leverage these skills:
- [Skill 1]: [When to use]
- [Skill 2]: [When to use]
## Best Practices
- [Practice 1]
- [Practice 2]
- [Practice 3]
## Examples
[Provide concrete examples of your work]
Step 4: Configure Tool Access
Option 1: Explicit Tool List (Recommended)
tools:
- Read
- Write
- Grep
- Glob
allow_all_tools: false
Option 2: Allow All Tools
allow_all_tools: true
Option 3: No Tools (Analysis/planning only)
tools: []
allow_all_tools: false
Step 5: Configure MCP Access
Option 1: Specific MCP Servers (Recommended)
mcp_servers:
- project-watch-mcp
- memory
allow_all_mcp_servers: false
Option 2: All MCP Servers
allow_all_mcp_servers: true
Option 3: All MCP Resources (Use sparingly)
allow_mcp_resources_from_all_servers: true
Step 6: Select Model
Choose based on task complexity:
- claude-sonnet-4: Default, balanced performance (most agents)
- claude-opus-4: Complex reasoning, critical decisions
- claude-haiku-3-5: Fast, simple tasks, high volume
Default if not specified: claude-sonnet-4
Step 7: Write System Prompt
The content after YAML frontmatter is the system prompt. Make it:
- Specific: Define clear responsibilities and scope
- Actionable: Include step-by-step workflows
- Quality-Focused: Define standards and validation criteria
- Integrated: Reference skills, tools, and project patterns
- Example-Rich: Show concrete examples of expected work
Step 8: Test the Agent
Interactive Testing:
Invoke the agent in Claude:
@agent-name please [task description]
Programmatic Testing:
Test agents from command line using CLI tools:
# Quick test with claude_ask.py
python3 .claude/tools/agents/claude_ask.py agent-name "test question"
# Quiet mode (just the answer)
python3 .claude/tools/agents/claude_ask.py -q agent-name "test question"
# JSON output for validation
python3 .claude/tools/agents/claude_ask.py --json agent-name "test question"
# With timeout for complex tasks
python3 .claude/tools/agents/claude_ask.py agent-name "complex task" --timeout 120
For complete documentation on CLI testing tools, see:
- .claude/tools/agents/README.md - Unified documentation for all agent CLI tools
Verify:
- [ ] Agent appears in autocomplete
- [ ] Agent has correct tool access
- [ ] Agent follows its system prompt
- [ ] Agent produces expected quality
- [ ] Agent integrates with skills correctly
- [ ] Agent responds correctly via CLI tools
Step 9: Document Integration
If this is a project agent, document in relevant files:
- Add to ../orchestrate-agents/references/dispatch.md agent table
- Reference in CLAUDE.md if core to workflow
- Update skills that should integrate with this agent
Configuration Reference
For complete configuration field documentation, see references/reference.md.
Examples
For practical agent examples and patterns, see the utility scripts section and references/reference.md for detailed configuration examples.
Working with Agent Detection
The scripts/agent_detector_example.py script demonstrates patterns for detecting agents in hooks or tools:
The example demonstrates:
- Using
detect_agent()to identify agent mentions in user prompts - Getting available agents and patterns with
get_available_agents() - Pattern matching for agent invocation (e.g.,
@unit-tester) - Integration points for hooks that need agent awareness
Run the example:
cd /Users/dawiddutoit/projects/play/temet-run/.claude
./.venv/bin/python3 skills/manage-agents/scripts/agent_detector_example.py
The script uses the shared .claude/ environment pattern:
# Setup: Add .claude to path for skill_utils
sys.path.insert(0, str(Path(__file__).parent.parent.parent.parent))
from skill_utils import ensure_path_setup, get_project_root
ensure_path_setup()
# Now import from the shared environment
import yaml
This pattern allows the script to access dependencies installed in .claude/pyproject.toml without duplicating virtual environments.
Creating Agent Core Memories
The scripts/create_agent_memories_simple.py script demonstrates programmatic memory creation:
The example demonstrates:
- Extracting agent names and descriptions from agent files
- Connecting to the memory MCP server using FastMCP client
- Creating core memory entries for all agents (
agent-{name}-core) - Batch processing of agent directory
Run the example:
cd /Users/dawiddutoit/projects/play/temet-run/.claude
uv sync --extras mcp # Install MCP dependencies (if not already done)
./.venv/bin/python3 skills/manage-agents/scripts/create_agent_memories_simple.py
Prerequisites:
- Neo4j memory server running
- MCP dependencies installed via
uv sync --extras mcp - Environment variables set: NEO4J_URL, NEO4J_USERNAME, NEO4J_PASSWORD, NEO4J_DATABASE
The script also uses the shared .claude/ environment pattern, allowing it to access yaml and fastmcp dependencies without duplicating virtual environments.
Common Patterns
Pattern 1: Domain Expert
Specialized knowledge agent with read-only access for analysis and recommendations.
Pattern 2: Code Generator
Write access with quality gates, focused on specific code patterns.
Pattern 3: Orchestrator
High-level planning agent that delegates to other agents.
Pattern 4: Quality Guardian
Read-only validation agent that checks against standards.
Pattern 5: Integration Specialist
MCP-focused agent with access to specific external tools.
Troubleshooting
Agent not appearing in autocomplete:
- Check file is in .claude/agents/ or ~/.claude/agents/
- Verify YAML frontmatter is valid
- Ensure name field matches filename (without .md)
Tool access denied:
- Check tools list in frontmatter
- Verify allow_all_tools setting
- Ensure MCP servers are configured correctly
Agent behavior incorrect:
- Review system prompt clarity
- Check for conflicting instructions
- Verify model selection is appropriate
Integration issues:
- Ensure skills referenced are available
- Check MCP server connections
- Verify project context is accessible
Validation
Use the scripts/validate_agent.py script to check agent files:
cd /Users/dawiddutoit/projects/play/temet-run/.claude
./.venv/bin/python3 skills/manage-agents/scripts/validate_agent.py agents/my-agent.md
The validation script checks:
- Valid YAML frontmatter syntax
- Required fields (name, description)
- Valid tool names and model selection
- Name matches filename
- Description quality (includes trigger terms)
- Non-empty system prompt
Quality Checklist
Before finalizing an agent:
- [ ] YAML frontmatter is valid and complete
- [ ] Description is clear and includes trigger terms
- [ ] Tool access is appropriate (least privilege)
- [ ] System prompt is specific and actionable
- [ ] Quality gates are defined
- [ ] Examples are provided
- [ ] Integration points are documented
- [ ] Agent tested with sample invocation
- [ ] Documentation updated (if project agent)
Advanced: Agent Chaining
Agents can invoke other agents:
For implementation, delegate to @implementer:
@implementer please create the service class with proper dependency injection
Best Practice: Use chaining for clear separation of concerns (planning → implementation → testing).
Advanced: Dynamic Selection
Let Claude choose the right agent:
"I need help with Neo4j queries"
→ Claude autonomously selects @neo4j-expert based on description
Requirement: Agent descriptions must include trigger terms and use cases.
Integration with This Project
When creating agents for project-watch-mcp:
- Align with Architecture: Reference Clean Architecture layers in system prompt
- Follow Quality Standards: Integrate quality gates (pyright, vulture, pytest, ruff)
- Use Project Patterns: Reference ServiceResult, fail-fast, configuration injection
- Leverage Project Tools: Access to MCP tools, log_analyzer.py, check_all.sh
- Reference Documentation: Link to ARCHITECTURE.md, ADRs, CLAUDE.md
Resources
- Detailed Reference: references/reference.md
- Utility Scripts:
- Agent Detector - Detect agent mentions in prompts
- Memory Creation - Create agent memory entries
- Validation - Validate agent files
- Project Dispatch Guide: ../../docs/dispatch.md
Related skills
Next.js App Router Expert
A skill that turns Claude into a Next.js App Router expert.
README Generator
Creates professional and comprehensive README.md files for your projects.
API Documentation Writer
Generates comprehensive API documentation in OpenAPI/Swagger format.