stock-scanner-mcp: Instructions file for Claude Code

CLAUDE.md

stock-scanner-mcp CLAUDE.md is an instructions file for Claude Code from yyordanov-tradu/stock-scanner-mcp. It costs 2,102 tokens per session, scanned A, original, MIT.

Instructions for a project that provides stock and cryptocurrency market data to Claude Code through an MCP server, a connector between AI assistants and external tools. The project is written in TypeScript, runs on Node.js, and is distributed through npm.

In plain words
What is it for?
Use it when working on the stock-scanner-mcp codebase, its market-data modules, configuration, tests, or npm packaging.
Why use it?
It explains the project’s status, technology choices, structure, and setup context in one place for contributors.

Instructions file for Claude Code

Written for Claude Code: Claude Code plugin machinery. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is yyordanov-tradu/stock-scanner-mcp's own configuration. It tells Claude Code how to work on stock-scanner-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 stock-scanner-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to yyordanov-tradu/stock-scanner-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/yyordanov-tradu/stock-scanner-mcp/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/yyordanov-tradu/stock-scanner-mcp

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Per session 2,102 This file is loaded in full into every session.
When invoked 2,102 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 $0.02102 $0.02102
Opus 5 $0.01051 $0.01051
Sonnet 5 $0.00420 $0.00420
Haiku 4.5 $0.00210 $0.00210

Measured 11d ago against content hash f2bf3395bffc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

stock-scanner-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 11d 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 · 177 lines

How it starts

The opening of the file, as written. The whole thing — 177 lines — stays where its author put it; the contents beside it link to each section on GitHub.

stock-scanner-mcp

Status

Version: 1.18.0 — Published on npm as stock-scanner-mcp Modules: 15 implemented (69 tools total)

Planning docs (historical): docs/architecture.md, docs/plans/ — reference only, not actively maintained

Project Overview

A modular, open-source MCP (Model Context Protocol) server that provides Claude Code with stock and crypto market data. Users install it via npm and configure which data modules to enable based on available API keys.

Tech Stack

  • Language: TypeScript
  • Runtime: Node.js
  • Protocol: MCP over stdio (JSON-RPC)
  • SDK: @modelcontextprotocol/sdk
  • Build: tsup (bundles to ESM)
  • Test: vitest
  • Schema: zod
  • Distribution: npm (npx stock-scanner-mcp)

Project Structure

stock-scanner-mcp/
├── src/
│   ├── index.ts              # MCP server entry point
│   ├── config.ts             # Env var + arg parsing
│   ├── registry.ts           # Module registry + shared MODULE_CATALOG
│   ├── modules/
│   │   ├── tradingview/      # TradingView stock scanner (no key)
│   │   ├── tradingview-crypto/ # TradingView crypto scanner (no key)
│   │   ├── sec-edgar/        # SEC EDGAR filings (no key)
│   │   ├── finnhub/          # News + earnings (FINNHUB_API_KEY)
│   │   ├── alpha-vantage/    # Prices + fundamentals (ALPHA_VANTAGE_API_KEY)
│   │   ├── coingecko/        # Crypto market data (no key)
│   │   ├── options/          # Options chains, Greeks, unusual activity (no key)
│   │   ├── options-cboe/     # CBOE put/call ratio sentiment (no key)
│   │   ├── fred/             # US economic data — calendar, indicators (FRED_API_KEY)
│   │   ├── sentiment/        # Market & crypto Fear & Greed sentiment (no key)
│   │   ├── frankfurter/      # Forex exchange rates — ECB daily rates (no key)
│   │   ├── market-breadth/   # Market breadth indicators (no key)
│   │   ├── reddit/           # Reddit trending tickers & sentiment (no key)
│   │   └── unified-market/   # Smart provider routing (no key)
│   ├── sidecar/
│   │   ├── index.ts          # HTTP sidecar entry point (port 3200)
│   │   ├── routes.ts         # Declarative URL routing table
│   │   └── server.ts         # Dynamic HTTP request handler
│   └── shared/
│       ├── http.ts           # HTTP client with timeouts
│       ├── cache.ts          # In-memory TTL cache
│       ├── types.ts          # Shared types + result builders
│       ├── resolver.ts       # Ticker resolution (AAPL → NASDAQ:AAPL)
│       └── utils.ts          # withMetadata() wrapper
├── .claude-plugin/           # Claude Code plugin manifests (plugin.json, marketplace.json)
├── .mcp.json                 # MCP server launch config for the plugin (npx)
├── package.json
├── tsconfig.json
└── vitest.config.ts

Read the full file on GitHub · 177 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. 11d ago First seen · 177 lines · 2,102 tokens per session scan A f2bf3395bffc

Subscribe to this mod's changes

stock-scanner-mcp CLAUDE.md is an instructions file published in the GitHub repository yyordanov-tradu/stock-scanner-mcp (6 stars, last pushed yesterday), licensed MIT. It adds 2,102 tokens to every session, about $0.0105 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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