Borrowing it
Nothing to install: this file belongs to TheFractalyst/MetatraderMCP. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/TheFractalyst/MetatraderMCP/main/AGENTS.mdgit clone --depth 1 https://github.com/TheFractalyst/MetatraderMCPWrote 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/thefractalyst/metatradermcp/agents-md)<a href="https://agentmods.dev/instructions/thefractalyst/metatradermcp/agents-md"><img src="https://agentmods.dev/badge/instructions/thefractalyst/metatradermcp/agents-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.
<a href="https://agentmods.dev/instructions/thefractalyst/metatradermcp/agents-md"><img src="https://agentmods.dev/badge/instructions/thefractalyst/metatradermcp/agents-md.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00970 | $0.00970 |
| Opus 5.5 | $0.00388 | $0.00388 |
| Sonnet 5.5 | $0.00194 | $0.00194 |
| Haiku 4.5 | $0.00097 | $0.00097 |
Grade A, and why
MetatraderMCP AGENTS.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 1mo 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 — 112 lines — stays where its author put it; the contents beside it link to each section on GitHub.
MetaTraderMCP - Agent Instructions
Overview
MQL4/MQL5 reference documentation MCP server with 4863 entries covering 100% of the official MQL5 and MQL4 documentation sitemaps.
Commands
Setup
python -m venv .venv
source .venv/bin/activate # macOS/Linux
pip install -e ".[dev]"
Index database
metatradermcp build
Run server
metatradermcp # stdio (default)
TRANSPORT=sse PORT=8080 metatradermcp # HTTP/SSE
Lint
ruff check . --line-length 120
Test
pytest tests/ -v
Architecture
- FastMCP 3.4 with FileSystemProvider for auto-discovery
- ChromaDB vector store (cosine, all-MiniLM-L6-v2, 384-dim)
- 3 composable lifespans: db | model | cache
- Circuit breaker on compiler and ChromaDB
- Hot cache for fast lookups
- Response capping at 80KB
- Error masking (no internal details leaked)
Compiler (gold-standard MetaEditor via SSH)
The mql_compile tool tries compilation methods in priority order:
- Local MetaEditor (
METAEDITOR_PATHenv var, or auto-detected Wine/CrossOver) - Remote SSH MetaEditor (
METAEDITOR_SSH_HOSTenv var) - RECOMMENDED for macOS - mql5-lsp (community Rust LSP, tree-sitter based) - fallback, catches syntax only
- Python pattern checks - fallback, catches MQL4->MQL5 migration issues
Setting up SSH compilation (recommended)
Requires a Windows host (or WSL) with MetaTrader 5 installed and SSH access:
# In .env or your shell environment:
export METAEDITOR_SSH_HOST=your-windows-host
The MCP auto-installs bin/mql_compile_remote.sh on the remote host on first use.
The helper script:
- Derives Windows paths from WSL paths (
/mnt/c/...->C:\\...\\) - Runs
metaeditor64.exe /compile:"path" /log:"path" - Reads the UTF-16LE log and converts to UTF-8 for parsing
Compiler accuracy comparison
+-------------------------+--------+-----------+
| Error type | LSP | MetaEdit |
+-------------------------+--------+-----------+
| Missing semicolon | YES | YES |
| Unresolved includes | YES | YES |
| Undeclared identifiers | NO | YES |
| Wrong parameter count | YES | YES |
| Type mismatches | NO | YES |
| MQL4-isms in MQL5 | YES* | YES |
+-------------------------+--------+-----------+
* = caught by Python pattern checks, not the LSP itself
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.
- 1mo ago First seen · 112 lines · 970 tokens per session scan A 84afbe495e3c
MetatraderMCP AGENTS.md is an instructions file published in the GitHub repository TheFractalyst/MetatraderMCP (2 stars, last pushed 1mo ago), licensed MIT. It adds 970 tokens to every session, about $0.0039 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.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.