Borrowing it
Nothing to install: this file belongs to AceDataCloud/ShortURLMCP. 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/AceDataCloud/ShortURLMCP/main/CLAUDE.mdgit clone --depth 1 https://github.com/AceDataCloud/ShortURLMCPWrote 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/acedatacloud/shorturlmcp/claude-md)<a href="https://agentmods.dev/instructions/acedatacloud/shorturlmcp/claude-md"><img src="https://agentmods.dev/badge/instructions/acedatacloud/shorturlmcp/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 | $0.00372 | $0.00372 |
| Opus 5 | $0.00186 | $0.00186 |
| Sonnet 5 | $0.00074 | $0.00074 |
| Haiku 4.5 | $0.00037 | $0.00037 |
Grade A, and why
ShortURLMCP 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 8d 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.
This is a copy
86% identical to SeedanceMCP CLAUDE.md — 13 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
ShortURLMCP
MCP (Model Context Protocol) server for URL shortening via AceDataCloud API.
Project Structure
core/
config.py — Settings dataclass (API token, base URL)
server.py — FastMCP server singleton
client.py — httpx async HTTP client
types.py — Literal types (no model types)
exceptions.py — Error classes (AuthError, APIError, TimeoutError)
utils.py — Formatting helpers
tools/
shorturl_tools.py — shorten URLs
info_tools.py — list available actions
prompts/ — LLM guidance prompts
tests/ — pytest-asyncio + respx tests
Sync from Docs
When invoked by the sync workflow, the Docs repo is checked out at _docs/. Your job:
- Source of truth —
_docs/openapi/shorturl.jsonis the OpenAPI spec for the ShortURLMCP API. - Compare models — The Literal types in
core/types.pymust match the spec's model enum. Add/remove as needed. - Compare parameters — Each
@mcp.tool()function's parameters should match the corresponding OpenAPI endpoint. - Update defaults — If a new model becomes the recommended default, update the default in
core/types.py. - Update README — Keep the model table and feature list current.
- Add tests — For new tools or parameters, add test cases in
tests/. - PR title — Use format:
sync: <description> [auto-sync]
Development
pip install -e ".[dev]"
pytest --cov=core --cov=tools
ruff check .
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.
- 8d ago First seen · 41 lines · 372 tokens per session scan A bdcbfcd71b4b
ShortURLMCP CLAUDE.md is an instructions file published in the GitHub repository AceDataCloud/ShortURLMCP (1 stars, last pushed 15d ago), licensed MIT. It adds 372 tokens to every session, about $0.0019 per session on Opus 5. A static security scan graded it A with 0 findings. It is 86% identical to SeedanceMCP CLAUDE.md, differing in 13 lines, and is treated as a copy.
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