Borrowing it
Nothing to install: this file belongs to SafeBreach/safebreach-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.
curl -O https://raw.githubusercontent.com/SafeBreach/safebreach-mcp/main/CLAUDE.mdgit clone --depth 1 https://github.com/SafeBreach/safebreach-mcpWrote 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/safebreach/safebreach-mcp/claude-md)<a href="https://agentmods.dev/instructions/safebreach/safebreach-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/safebreach/safebreach-mcp/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.
<a href="https://agentmods.dev/instructions/safebreach/safebreach-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/safebreach/safebreach-mcp/claude-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 | $0.12459 | $0.12459 |
| Opus 5 | $0.06229 | $0.06229 |
| Sonnet 5 | $0.02492 | $0.02492 |
| Haiku 4.5 | $0.01246 | $0.01246 |
Grade A, and why
safebreach-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 yesterday.
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 — 850 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.
🚨 SECURITY FIRST - CRITICAL FOR CLAUDE
IMPORTANT: Claude should always be launched using the secure launcher to ensure full project context and security awareness:
# ALWAYS use this command to launch Claude:
./claude-launcher.sh
This ensures Claude has:
- ✅ Complete project architecture and best practices knowledge
- ✅ Security context and awareness of token handling rules
- ✅ Current git status and environment configuration
- ✅ Pre-validated secure working environment
NEVER commit real secrets:
- Use placeholders like
your-token-here,REPLACE_WITH_ACTUAL_TOKEN - Use environment variables:
${API_TOKEN},$SAFEBREACH_TOKEN - Pre-commit hooks will automatically scan for and block real secrets
📚 See TEAM_WORKFLOW.md for complete security practices and development workflow.
Development Commands
Running the Multi-Server Architecture (Recommended):
# Run all servers concurrently on ports 8000-8003 (localhost-only, secure default)
uv run start_all_servers.py
# External connection support (requires authentication token)
SAFEBREACH_MCP_AUTH_TOKEN="your-secure-token" uv run start_all_servers.py --external
# External connections for specific servers only
SAFEBREACH_MCP_AUTH_TOKEN="your-token" uv run start_all_servers.py --external-data --external-utilities
# Get help with all external connection options
uv run start_all_servers.py --help
# Custom base URL for reverse proxy deployment (the streamable-http endpoint becomes /api/mcp instead of /mcp)
SAFEBREACH_MCP_BASE_URL="/api/mcp" uv run start_all_servers.py
# Combined configuration with external access and custom base URL
SAFEBREACH_MCP_AUTH_TOKEN="your-token" SAFEBREACH_MCP_BASE_URL="/api/mcp" uv run start_all_servers.py --external
# Single-tenant deployment (SafeBreach internal use)
export DATA_URL="http://localhost:3400"
export CONFIG_URL="http://localhost:3401"
export SIEM_URL="http://localhost:3402"
export ACCOUNT_ID="your-account-id"
export console_name_apitoken="your-api-token"
uv run start_all_servers.py
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.
- yesterday Changed · +3 lines · +75 tokens per session f6146937f40f
- 3d ago Changed · -10 lines · -141 tokens per session e580ad2b1dac
- 7d ago Changed · +29 lines · +663 tokens per session e85fb34916e4
- 11d ago First seen · 828 lines · 11,862 tokens per session scan A 5112615e1fd2
safebreach-mcp CLAUDE.md is an instructions file published in the GitHub repository SafeBreach/safebreach-mcp (7 stars, last pushed yesterday), licensed BSD-3-Clause. It adds 12,459 tokens to every session, about $0.0623 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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