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persona-mcp: Instructions file for Claude Code

CLAUDE.md

persona-mcp CLAUDE.md is an instructions file for Claude Code from pidster/persona-mcp. It costs 617 tokens per session, scanned A, original, MIT.

Repository instructions for persona-mcp, a TypeScript server that gives AI coding tools reusable problem-solving roles.

In plain words
What is it for?
They help developers build, test, type-check, and understand the server's resources and prompts.
Why use it?
They give contributors a shared reference for the project's structure, commands, technology, and available server features.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is pidster/persona-mcp's own configuration. It tells Claude Code how to work on persona-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything persona-mcp configures →

not rated 5repo 3mo ago A scan 617 tokens original MIT
View source ↗ pidster/persona-mcp
Reuse

Borrowing it

Nothing to install: this file belongs to pidster/persona-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/pidster/persona-mcp/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/pidster/persona-mcp

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
[![agentmods](https://agentmods.dev/badge/instructions/pidster/persona-mcp/claude-md.svg)](https://agentmods.dev/instructions/pidster/persona-mcp/claude-md)
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<a href="https://agentmods.dev/instructions/pidster/persona-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/pidster/persona-mcp/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 617 This file is loaded in full into every session.
When invoked 617 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found 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 $0.00617 $0.00617
Opus 5 $0.00309 $0.00309
Sonnet 5 $0.00123 $0.00123
Haiku 4.5 $0.00062 $0.00062

Measured 7d ago against content hash 6fd3337c1228, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

persona-mcp CLAUDE.md 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 7d 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.

CLAUDE.md · 90 lines

How it starts

The opening of the file, as written. The whole thing — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

This is an MCP (Model Context Protocol) server that provides LLM clients with specialized prompt personas for improved problem-solving approaches in software development tasks.

Technology Stack

  • TypeScript with ES modules
  • @modelcontextprotocol/sdk for MCP protocol implementation
  • Zod for schema validation
  • tsup for building and bundling

Development Commands

npm run build      # Build the project with tsup
npm run dev        # Watch mode for development
npm run start      # Start the MCP server
npm run typecheck  # TypeScript type checking

Architecture

Core Components

  • src/index.ts - Main MCP server entry point with HTTP transport
  • src/persona-manager.ts - Manages persona loading and prompt generation
  • src/types/ - TypeScript type definitions for personas and MCP
  • src/personas/ - Individual persona definitions

MCP Capabilities

The server exposes:

  • Resources: Persona definitions accessible via persona://{id} URIs
  • Prompts: Persona adoption prompts via adopt-persona-{id} commands

Persona System

Each persona includes:

  • Unique ID and role classification
  • Specialized expertise areas
  • Problem-solving approach
  • Detailed prompt template
  • Examples and tags

Adding New Personas

  1. Create new persona file in src/personas/
  2. Export persona object following the Persona type
  3. Add to persona imports in persona-manager.ts
  4. Include in defaultPersonas array

Testing

Test the server using MCP Inspector or integrate with MCP-compatible clients like Claude Desktop.

File Organization

  • Store plans in a plans/ directory using a file name format {year-month-day}-{version}-{brief topic}.md

Code Guidelines

  • Never use emojis in docs unless the user specifically requests it

Automatic Persona Selection

When the Personas MCP server is connected and the user asks a question:

Read the full file on GitHub · 90 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. 7d ago First seen · 90 lines · 617 tokens per session scan A 6fd3337c1228

Subscribe to this mod's changes

persona-mcp CLAUDE.md is an instructions file published in the GitHub repository pidster/persona-mcp (5 stars, last pushed 3mo ago), licensed MIT. It adds 617 tokens to every session, about $0.0031 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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