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 rules/neschadin/askell-mcp/mcp-docsgit clone --depth 1 https://github.com/Neschadin/askell-mcpWhat 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 | $0.00216 | $0.00216 |
| Opus 5 | $0.00108 | $0.00108 |
| Sonnet 5 | $0.00043 | $0.00043 |
| Haiku 4.5 | $0.00022 | $0.00022 |
Grade A, and why
mcp-docs 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.
What it actually says
Live MCP docs
This repo is @modelcontextprotocol/server v2 (Bun + stdio). Training data will hallucinate v1 @modelcontextprotocol/sdk.
When the task touches protocol or SDK APIs, load the mcp-docs skill and read live docs:
- Protocol / Inspector / spec — MCP server
mcp-protocol-docs(search_model_context_protocol). Index: https://modelcontextprotocol.io/llms.txt (prefer2026-07-28). - TypeScript SDK v2 — https://ts.sdk.modelcontextprotocol.io/v2/llms.txt then the page's
.mdURL. Or Context7 library/websites/ts_sdk_modelcontextprotocol_io_v2.
Do not scaffold a new MCP project. Do not copy v1 APIs (.tool(), McpError, extra, SSE).
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 First seen · 16 lines · 216 tokens per session scan A 2df12da88aa5
mcp-docs is a cursor rule published in the GitHub repository Neschadin/askell-mcp (0 stars, last pushed 4d ago), licensed MIT. It adds 216 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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