V3 MCP Optimization

V3 MCP Optimization is a skill for Claude Code from proffesor-for-testing/agentic-qe. It costs 42 tokens per session (5,067 once invoked), scanned A, a copy of V3 MCP Optimization, MIT.

A server-optimization skill for MCP, the Model Context Protocol used to connect agents with tools and services.

In plain words
What is it for?
It helps analyze MCP bottlenecks, add connection pooling and load balancing, optimize transport, and monitor performance.
Why use it?
It addresses slow startup, repeated connection setup, inefficient tool lookup, and idle connections that consume memory.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: installed under .agents/ (shared by several agents).

Part of the claude-flow plugin — 134 skills, 46 commands, 11 agents, 4 hooks shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/proffesor-for-testing/agentic-qe/v3-mcp-optimization
Any agent
npx skills add proffesor-for-testing/agentic-qe --skill v3-mcp-optimization
Clone the repo
git clone --depth 1 https://github.com/proffesor-for-testing/agentic-qe

Made for: Claude Code.

Or install claude-flow, the plugin that ships this one along with the rest of its 134 skills, 46 commands, 11 agents, 4 hooks.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for V3 MCP Optimization

README.md
[![agentmods](https://agentmods.dev/badge/skills/proffesor-for-testing/agentic-qe/v3-mcp-optimization.svg)](https://agentmods.dev/skills/proffesor-for-testing/agentic-qe/v3-mcp-optimization)
Your own site
<a href="https://agentmods.dev/skills/proffesor-for-testing/agentic-qe/v3-mcp-optimization"><img src="https://agentmods.dev/badge/skills/proffesor-for-testing/agentic-qe/v3-mcp-optimization.svg" alt="Measured on agentmods" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,067 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00042 $0.05067
Opus 5 $0.00021 $0.02534
Sonnet 5 $0.00008 $0.01013
Haiku 4.5 $0.00004 $0.00507

Measured 2d ago against content hash a0ff9e8f8d26, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

V3 MCP Optimization scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to V3 MCP Optimization — 28 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/ruflo/.agents/skills/v3-mcp-optimization/SKILL.md · 777 lines

How it starts

The opening of the file, as written. The whole thing — 777 lines — stays where its author put it; the contents beside it link to each section on GitHub.

V3 MCP Optimization

What This Skill Does

Optimizes claude-flow v3 MCP (Model Context Protocol) server implementation with advanced transport layer optimizations, connection pooling, load balancing, and comprehensive performance monitoring to achieve sub-100ms response times.

Quick Start

# Initialize MCP optimization analysis
Task("MCP architecture", "Analyze current MCP server performance and bottlenecks", "mcp-specialist")

# Optimization implementation (parallel)
Task("Connection pooling", "Implement MCP connection pooling and reuse", "mcp-specialist")
Task("Load balancing", "Add dynamic load balancing for MCP tools", "mcp-specialist")
Task("Transport optimization", "Optimize transport layer performance", "mcp-specialist")

MCP Performance Architecture

Current State Analysis

Current MCP Issues:
├── Cold Start Latency: ~1.8s MCP server init
├── Connection Overhead: New connection per request
├── Tool Registry: Linear search O(n) for 213+ tools
├── Transport Layer: No connection reuse
└── Memory Usage: No cleanup of idle connections

Target Performance:
├── Startup Time: <400ms (4.5x improvement)
├── Tool Lookup: <5ms (O(1) hash table)
├── Connection Reuse: 90%+ connection pool hits
├── Response Time: <100ms p95
└── Memory Efficiency: 50% reduction

MCP Server Architecture

// src$core$mcp$mcp-server.ts
import { Server } from '@modelcontextprotocol$sdk$server$index.js';
import { StdioServerTransport } from '@modelcontextprotocol$sdk$server$stdio.js';

interface OptimizedMCPConfig {
  // Connection pooling
  maxConnections: number;
  idleTimeoutMs: number;
  connectionReuseEnabled: boolean;

  // Tool registry
  toolCacheEnabled: boolean;
  toolIndexType: 'hash' | 'trie';

  // Performance
  requestTimeoutMs: number;
  batchingEnabled: boolean;
  compressionEnabled: boolean;

  // Monitoring
  metricsEnabled: boolean;
  healthCheckIntervalMs: number;
}

export class OptimizedMCPServer {
  private server: Server;
  private connectionPool: ConnectionPool;
  private toolRegistry: FastToolRegistry;
  private loadBalancer: MCPLoadBalancer;
  private metrics: MCPMetrics;

  constructor(config: OptimizedMCPConfig) {
    this.server = new Server({
      name: 'claude-flow-v3',
      version: '3.0.0'
    }, {
      capabilities: {
        tools: { listChanged: true },
        resources: { subscribe: true, listChanged: true },
        prompts: { listChanged: true }
      }
    });

    this.connectionPool = new ConnectionPool(config);
    this.toolRegistry = new FastToolRegistry(config.toolIndexType);
    this.loadBalancer = new MCPLoadBalancer();
    this.metrics = new MCPMetrics(config.metricsEnabled);
  }

  async start(): Promise<void> {
    // Pre-warm connection pool
    await this.connectionPool.preWarm();

    // Pre-build tool index
    await this.toolRegistry.buildIndex();

    // Setup request handlers with optimizations
    this.setupOptimizedHandlers();

    // Start health monitoring
    this.startHealthMonitoring();

    // Start server
    const transport = new StdioServerTransport();
    await this.server.connect(transport);

    this.metrics.recordStartup();
  }
}

Read the full file on GitHub · 777 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 777 lines · 42 tokens per session scan A a0ff9e8f8d26

Subscribe to this mod's changes

V3 MCP Optimization is a skill published in the GitHub repository proffesor-for-testing/agentic-qe (474 stars, last pushed 4d ago), licensed MIT. It adds 42 tokens to every session and 5,067 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to V3 MCP Optimization, differing in 28 lines, and is treated as a copy.

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