home / skills / secondsky / claude-skills / mcp-management

This skill helps manage and discover MCP servers, analyze capabilities, and execute tools without polluting the main context.

npx playbooks add skill secondsky/claude-skills --skill mcp-management

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---
name: mcp-management
description: Manage MCP servers - discover, analyze, execute tools/prompts/resources. Use for MCP integrations, capability discovery, tool filtering, programmatic execution, or encountering context bloat, server configuration, tool execution errors.
keywords: MCP, Model Context Protocol, MCP servers, tool discovery, MCP integration, capability discovery, tool filtering, MCP tools, MCP prompts, MCP resources, progressive disclosure, multi-server management, tool catalog, mcp client, mcp execution, server configuration, context-efficient
---

# MCP Management

Skill for managing and interacting with Model Context Protocol (MCP) servers.

## Overview

MCP is an open protocol enabling AI agents to connect to external tools and data sources. This skill provides scripts and utilities to discover, analyze, and execute MCP capabilities from configured servers without polluting the main context window.

**Key Benefits**:
- Progressive disclosure of MCP capabilities (load only what's needed)
- Intelligent tool/prompt/resource selection based on task requirements
- Multi-server management from single config file
- Context-efficient: subagents handle MCP discovery and execution
- Persistent tool catalog: automatically saves discovered tools to JSON for fast reference

## When to Use This Skill

Use this skill when:
1. **Discovering MCP Capabilities**: Need to list available tools/prompts/resources from configured servers
2. **Task-Based Tool Selection**: Analyzing which MCP tools are relevant for a specific task
3. **Executing MCP Tools**: Calling MCP tools programmatically with proper parameter handling
4. **MCP Integration**: Building or debugging MCP client implementations
5. **Context Management**: Avoiding context pollution by delegating MCP operations to subagents

## Core Capabilities

### 1. Configuration Management

MCP servers configured in `.claude/.mcp.json`.

**Gemini CLI Integration** (recommended): Create symlink to `.gemini/settings.json`:
```bash
mkdir -p .gemini && ln -sf .claude/.mcp.json .gemini/settings.json
```

### 2. Capability Discovery

```bash
# Preferred: Using bun (faster)
bunx tsx scripts/cli.ts list-tools  # Saves to assets/tools.json
bunx tsx scripts/cli.ts list-prompts
bunx tsx scripts/cli.ts list-resources

# Alternative: Using bunx
bunx tsx scripts/cli.ts list-tools
bunx tsx scripts/cli.ts list-prompts
bunx tsx scripts/cli.ts list-resources
```

Aggregates capabilities from multiple servers with server identification.

### 3. Intelligent Tool Analysis

LLM analyzes `assets/tools.json` directly - better than keyword matching algorithms.

### 4. Tool Execution

**Primary: Gemini CLI** (if available)
```bash
gemini -y -m gemini-2.5-flash -p "Take a screenshot of https://example.com"
```

**Secondary: Direct Scripts**
```bash
# Preferred: Using bun
bunx tsx scripts/cli.ts call-tool memory create_entities '{"entities":[...]}'

# Alternative: Using bunx
bunx tsx scripts/cli.ts call-tool memory create_entities '{"entities":[...]}'
```

**Fallback: mcp-manager Subagent**

## Implementation Patterns

### Pattern 1: Gemini CLI Auto-Execution (Primary)

Use Gemini CLI for automatic tool discovery and execution.

**Quick Example**:
```bash
gemini -y -m gemini-2.5-flash -p "Take a screenshot of https://example.com"
```

**Benefits**: Automatic tool discovery, natural language execution, faster than subagent orchestration.

### Pattern 2: Subagent-Based Execution (Fallback)

Use `mcp-manager` agent when Gemini CLI unavailable. Subagent discovers tools, selects relevant ones, executes tasks, reports back.

**Benefit**: Main context stays clean, only relevant tool definitions loaded when needed.

### Pattern 3: LLM-Driven Tool Selection

LLM reads `assets/tools.json`, intelligently selects relevant tools using context understanding, synonyms, and intent recognition.

### Pattern 4: Multi-Server Orchestration

Coordinate tools across multiple servers. Each tool knows its source server for proper routing.

## Quick Start

**Method 1: Gemini CLI** (recommended)
```bash
bun install -g gemini-cli  # or: bun add -g gemini-cli
mkdir -p .gemini && ln -sf .claude/.mcp.json .gemini/settings.json
gemini -y -m gemini-2.5-flash -p "Take a screenshot of https://example.com"
```

**Method 2: Scripts**
```bash
cd .claude/skills/mcp-management/scripts
bun install  # or: bun install
bunx tsx cli.ts list-tools  # Saves to assets/tools.json
bunx tsx cli.ts call-tool memory create_entities '{"entities":[...]}'
```

**Method 3: mcp-manager Subagent**

Dispatch subagent to handle MCP operations, keeping main context clean.

## Integration Strategy

### Execution Priority

1. **Gemini CLI** (Primary): Fast, automatic, intelligent tool selection
   - Check: `command -v gemini`
   - Execute: `gemini -y -m gemini-2.5-flash -p "<task>"`
   - Best for: All tasks when available

2. **Direct CLI Scripts** (Secondary): Manual tool specification
   - Use when: Need specific tool/server control
   - Execute: `bunx tsx scripts/cli.ts call-tool <server> <tool> <args>`

3. **mcp-manager Subagent** (Fallback): Context-efficient delegation
   - Use when: Gemini unavailable or failed
   - Keeps main context clean

### Integration with Agents

The `mcp-manager` agent uses this skill to:
- Check Gemini CLI availability first
- Execute via `gemini` command if available
- Fallback to direct script execution
- Discover MCP capabilities without loading into main context
- Report results back to main agent

This keeps main agent context clean and enables efficient MCP integration.

Overview

This skill manages Model Context Protocol (MCP) servers to discover, analyze, and execute external tools, prompts, and resources without polluting the main agent context. It centralizes multi-server configuration, progressively loads capabilities, and persistently catalogs discovered tools for fast reuse. Use it to integrate MCP toolchains programmatically, handle execution failures, or reduce context bloat by delegating MCP work to subagents.

How this skill works

The skill reads MCP server definitions from a single config and discovers capabilities (tools, prompts, resources), saving results to a persistent JSON catalog. It selects relevant tools using an LLM-driven analysis of the catalog and executes tools via a prioritized pipeline: Gemini CLI (preferred), direct TypeScript scripts, or a subagent fallback. Subagents perform discovery and execution so the main agent context remains compact.

When to use it

  • When you need to list available tools/prompts/resources across configured MCP servers
  • When you want the LLM to analyze and choose the best MCP tool for a task
  • When programmatic execution of MCP tools is required with proper parameter handling
  • When integrating or debugging MCP client implementations
  • When preventing context pollution by delegating MCP operations to subagents

Best practices

  • Maintain a single MCP config to manage multiple servers and create a symlink for CLI integration when possible
  • Prefer Gemini CLI for automatic discovery and natural-language execution; fall back to scripts or subagents when unavailable
  • Keep assets/tools.json up to date by running discovery after server changes to ensure the LLM has current capability data
  • Use subagents for long-running or noisy MCP operations to protect the main agent context
  • Provide clear, structured arguments when calling tools programmatically to reduce execution errors

Example use cases

  • Discover all image-processing tools across several MCP servers and choose the best for a screenshot task
  • Have the LLM analyze the tool catalog to recommend which memory or retrieval resource fits a given workflow
  • Execute a tool programmatically to create entities or run a resource via the direct CLI scripts
  • Fallback to the mcp-manager subagent to orchestrate multi-server workflows while keeping the main agent context small
  • Debug MCP integration by listing prompts and resources, then rerunning discovery after config changes

FAQ

What if Gemini CLI is not installed?

The skill falls back to direct TypeScript scripts or the mcp-manager subagent to discover and call tools, preserving functionality without Gemini.

Where are discovered tools stored?

Discovered capabilities are saved to a persistent JSON file (assets/tools.json) for fast lookup and LLM analysis.