Borrowing it
Nothing to install: this file belongs to im-girisankar/mcp-toolbox. 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/im-girisankar/mcp-toolbox/main/CLAUDE.mdgit clone --depth 1 https://github.com/im-girisankar/mcp-toolboxWrote 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/im-girisankar/mcp-toolbox/claude-md)<a href="https://agentmods.dev/instructions/im-girisankar/mcp-toolbox/claude-md"><img src="https://agentmods.dev/badge/instructions/im-girisankar/mcp-toolbox/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 5.1 | $0.00214 | $0.00214 |
| Opus 5 | $0.00107 | $0.00107 |
| Sonnet 5 | $0.00043 | $0.00043 |
| Haiku 4.5 | $0.00021 | $0.00021 |
Grade A, and why
mcp-toolbox 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 6d 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.
What it actually says
mcp-toolbox working notes
Architecture
src/mcp_toolbox/registry.py— central tool registry (dict + decorator)src/mcp_toolbox/tools/— individual tool modules, auto-register on importsrc/mcp_toolbox/server.py— MCP stdio server; lazy-importsmcp.server.fastmcp.FastMCP; requires[server]extra (pip install 'mcp-toolbox[server]')src/mcp_toolbox/config.py— ToolboxConfig dataclass + YAML loadersrc/mcp_toolbox/cli.py— argparse CLI: serve / list / dump
Dev workflow
pip install -e ".[dev]"
ruff check src tests
pytest -q
Adding a new tool
- Create
src/mcp_toolbox/tools/my_tool.py - Decorate with
@register("my_tool") - Import in
src/mcp_toolbox/tools/__init__.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.
- 6d ago First seen · 21 lines · 214 tokens per session scan A 10cd8d86b8d5
mcp-toolbox CLAUDE.md is an instructions file published in the GitHub repository im-girisankar/mcp-toolbox (0 stars, last pushed 22d ago), licensed MIT. It adds 214 tokens to every session, about $0.0011 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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