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.
npx agentmods add instructions/fugle-dev/fugle-mcp-server/claude-mdgit clone --depth 1 https://github.com/fugle-dev/fugle-mcp-serverWrote 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.
[](https://agentmods.dev/instructions/fugle-dev/fugle-mcp-server/claude-md)<a href="https://agentmods.dev/instructions/fugle-dev/fugle-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/fugle-dev/fugle-mcp-server/claude-md.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00595 | $0.00595 |
| Opus 5 | $0.00298 | $0.00298 |
| Sonnet 5 | $0.00119 | $0.00119 |
| Haiku 4.5 | $0.00060 | $0.00060 |
Grade A, and why
fugle-mcp-server 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 4d 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.
How it starts
The opening of the file, as written. The whole thing — 73 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 a Fugle MCP (Model Context Protocol) Server for Taiwan stock market operations. The server supports two different trading platforms:
- Taishin SDK (default)
- Fubon Neo SDK
The server provides stock market data, trading functionality, and fundamental analysis tools through MCP protocol.
Architecture
The codebase follows a modular architecture with SDK abstraction:
src/index.ts- Main server entry point with environment validationsrc/config.ts- Configuration management for SDK selectionsrc/shared/- Common utilities and abstractions:factory/- SDK abstraction layer with unified interfacesmarketdata/- Market data tools (intraday, historical, snapshots)fundamental/- Company analysis tools via Fugle API
src/taishin/- Taishin SDK specific implementationssrc/fubon/- Fubon SDK specific implementations
Each SDK implementation provides:
account/- Account management toolstrade/- Trading operations- Shared market data tools through the factory pattern
Development Commands
# Build the project
npm run build
# Watch mode for development
npm run watch
# Test with MCP inspector
npm run inspector
# Run the server directly
node build/index.js
SDK Configuration
The server uses SDK_TYPE environment variable to switch between trading platforms:
taishin(default) - Uses Taishin SDKfubon- Uses Fubon Neo SDK
Both SDKs are abstracted through the factory pattern in src/shared/factory/ to provide unified interfaces for market data operations.
Required Environment Variables
NATIONAL_ID- Taiwan National IDACCOUNT_PASS- Trading account passwordCERT_PASS- Certificate passwordCERT_PATH- Path to certificate file (defaults to/app/cert.p12)SDK_TYPE- SDK selection (taishinorfubon)ENABLE_ORDER- Enable trading functionality (default: false)ACCOUNT- Specific account selection for multi-account usersFUBON_URL- Fubon SDK connection URL (optional,fubononly)FUGLE_API_URL- Fugle API base URL override (optional, defaults tohttps://www.fugle.tw/api/v2)
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.
- 4d ago First seen · 73 lines · 595 tokens per session scan A ec8bb8bceef5
fugle-mcp-server CLAUDE.md is an instructions file published in the GitHub repository fugle-dev/fugle-mcp-server (10 stars, last pushed 3mo ago), licensed MIT. It adds 595 tokens to every session, about $0.0030 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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