What is mcp-finnhub CLAUDE.md?

Project instructions for an AI assistant working on mcp-finnhub, a Python server that connects tools to Finnhub financial data through MCP.

Starting a work session, checking saved tasks and project phases, reviewing changes, and finding architecture, pattern, and development guidance.

They provide a repeatable way to recover project context, review progress and history, and follow the repository's development documentation.

How cfdude/mcp-finnhub configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to cfdude/mcp-finnhub. 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/cfdude/mcp-finnhub/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/cfdude/mcp-finnhub

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/cfdude/mcp-finnhub/claude-md/github.svg)](https://agentmods.dev/instructions/cfdude/mcp-finnhub/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/cfdude/mcp-finnhub/claude-md"><img src="https://agentmods.dev/badge/instructions/cfdude/mcp-finnhub/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/cfdude/mcp-finnhub/claude-md"><img src="https://agentmods.dev/badge/instructions/cfdude/mcp-finnhub/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 3,544 This file is loaded in full into every session.

When invoked 3,544 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.

Model	Per session	Once invoked
Fable 5.1	$0.03544	$0.03544
Opus 5.5	$0.01418	$0.01418
Sonnet 5.5	$0.00709	$0.00709
Haiku 4.5	$0.00354	$0.00354

Measured 9d ago against content hash 4392aeafddb0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mcp-finnhub 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 9d 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 · 490 lines

How it starts

The opening of the file, as written. The whole thing — 490 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md - AI Agent Operational Guide

Project: mcp-finnhub - Finnhub MCP Server Language: Python 3.11+ MCP Server: Serena Project Name in Serena: mcp-finnhub

🚀 Quick Start for New Sessions

If you're starting a new session or lost context, follow these steps:

1. Activate Serena MCP for this project

Use Serena MCP tool: activate_project
Project path: /Users/robsherman/Servers/mcp-finnhub

2. Read the current state

Read Serena memory: todo       # What you're currently working on
Read Serena memory: progress   # What's been completed
Read Serena memory: phases     # Overall project roadmap

3. Check the CHANGELOG

Read: CHANGELOG.md             # Git commits and version history

4. Review planning documents (if needed)

Read: docs/ARCHITECTURE.md     # Complete architecture
Read: docs/PATTERNS.md         # MCP server patterns learned
Read: docs/DEVELOPMENT.md      # Dev workflow, testing, tools

📂 Project Structure

mcp-finnhub/
├── CLAUDE.md                  # ← YOU ARE HERE - Operational guide
├── CHANGELOG.md               # Version history with semantic versioning
├── README.md                  # User-facing documentation (TBD)
├── .mcp.json                  # Local MCP server configuration
├── .mcp.json.README.md        # Configuration guide
│
├── docs/                      # 📚 PLANNING DOCUMENTATION
│   ├── ARCHITECTURE.md        # Complete 23-tool architecture
│   ├── PATTERNS.md            # Learned patterns from mcp-fred, alpha-vantage, snowflake
│   └── DEVELOPMENT.md         # Dev workflow, Ruff, PyTest, 80% coverage
│
├── .serena/                   # 🧠 SERENA MCP OPERATIONAL STATE
│   ├── project.yml            # Serena project config
│   └── memories/
│       ├── phases.md          # 7 phases, 550 SP, 17 sprints
│       ├── todo.md            # Current sprint tasks
│       └── progress.md        # Completed work history
│
├── src/mcp_finnhub/           # Source code (to be built)
├── tests/                     # Test suite (to be built)
├── pyproject.toml             # Python project config (to be built)
└── .env.example               # Environment variables template (to be built)

Read the full file on GitHub · 490 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.

9d ago Changed · +7 lines · +197 tokens per session 4392aeafddb0
2mo ago First seen · 483 lines · 3,347 tokens per session scan A 903c6d9947bd

Subscribe to this mod's changes

mcp-finnhub CLAUDE.md is an instructions file published in the GitHub repository cfdude/mcp-finnhub (11 stars, last pushed 10d ago), licensed MIT. It adds 3,544 tokens to every session, about $0.0142 per session on Opus 5.5. 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.

Finance and fintech finnhub mcp-server pypi-package python-3

mcp-finnhub CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
mcp-finnhub CLAUDE.mdcfdude/mcp-finnhub	Instructions file	11	10d ago	MIT	A	3,544	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,685	GitHub Copilot
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	today	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,086	GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	2,022	GitHub Copilot

mcp-finnhub: Instructions file for Claude Code