Borrowing it
Nothing to install: this file belongs to AI-Riksarkivet/ra-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/AI-Riksarkivet/ra-mcp/main/CLAUDE.mdgit clone --depth 1 https://github.com/AI-Riksarkivet/ra-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/ai-riksarkivet/ra-mcp/claude-md)<a href="https://agentmods.dev/instructions/ai-riksarkivet/ra-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/ai-riksarkivet/ra-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/ai-riksarkivet/ra-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/ai-riksarkivet/ra-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 | $0.10340 | $0.10340 |
| Opus 5 | $0.05170 | $0.05170 |
| Sonnet 5 | $0.02068 | $0.02068 |
| Haiku 4.5 | $0.01034 | $0.01034 |
Grade A, and why
ra-mcp CLAUDE.md scanned grade A with 1 finding 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 9d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl http://localhost:7860/health How it starts
The opening of the file, as written. The whole thing — 977 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.
Project Overview
ra-mcp (Riksarkivet Model Context Protocol) is an MCP server that provides access to transcribed historical documents from the Swedish National Archives (Riksarkivet).
Architecture
The project is organized as a uv workspace with 45 packages under packages/ plus a root server.
This includes ra-mcp-dataset-lib (module ra_mcp_dataset_lib) — the shared LanceDB "spine"
(one SearchResult; get_lancedb cached/thread-safe connections; build_fts_index +
build_scalar_indexes; an instrumented lancedb_fts_search; SQL predicate builders; and the
shared MCP-handler scaffold require_keyword + format_results) that the 13 dataset libraries
and the pdf-mcp guide search all reuse instead of each rolling their own search. Cross-cutting
MCP helpers live in ra-mcp-common: run_dev_server (the standalone dev entrypoint),
mark_span_error + record_span_exception (telemetry), and the HTTPClient.
Packages are grouped by role into subfolders:
packages/libs/— domain libraries (*-lib), pluscommonpackages/mcps/— FastMCP servers (*-mcp) that wrap a domain library as MCP tools/resourcespackages/cli/— CLI (search-cli,browse-cli) and terminal-UI (tui) front-ends
ra-mcp/
├── src/ra_mcp_server/ # Root: Server composition and main CLI
│ ├── server.py # FastMCP composition entry point + AVAILABLE_MODULES registry
│ └── cli/app.py # Typer CLI root (ra command)
├── packages/
│ ├── libs/ # domain libraries (*-lib) + common
│ │ ├── common/ # ra-mcp-common: Shared HTTP client, formatting, datasets, telemetry
│ │ ├── xml-lib/ # ra-mcp-xml: ALTOClient (ALTO XML parsing)
│ │ ├── iiif-lib/ # ra-mcp-iiif-lib: IIIFClient
│ │ ├── oai-pmh-lib/ # ra-mcp-oai-pmh-lib: OAIPMHClient
│ │ ├── search-lib/ # ra-mcp-search-lib: Search domain (models, client, operations)
│ │ ├── browse-lib/ # ra-mcp-browse-lib: Browse domain (models, operations, url_generator)
│ │ └── <dataset>-lib/ # 14 dataset libs (diplomatics, sbl, sjomanshus, filmcensur,
│ │ # rosenberg, court, aktiebolag, faltjagare, suffrage,
│ │ # specialsok, dds, wincars, sj, tora)
│ ├── mcps/ # FastMCP servers wrapping the libs (*-mcp)
│ │ ├── search-mcp/ # ra-mcp-search-mcp: MCP tools for search
│ │ ├── browse-mcp/ # ra-mcp-browse-mcp: MCP tool for browse
│ │ ├── guide-mcp/ # ra-mcp-guide-mcp: MCP resources for historical guides
│ │ ├── htr-mcp/ # ra-mcp-htr-mcp: Handwritten text recognition (HTRflow)
│ │ ├── viewer-mcp/ # ra-mcp-viewer-mcp: Interactive document viewer (MCP App UI)
│ │ ├── pdf-mcp/ # ra-mcp-pdf-mcp: Interactive PDF viewer (MCP App UI)
│ │ ├── label-mcp/ # ra-mcp-label-mcp: Label Studio import (optional)
│ │ └── <dataset>-mcp/ # 14 dataset MCP servers (one per dataset lib above)
│ └── cli/ # CLI + TUI front-ends
│ ├── search-cli/ # ra-mcp-search-cli: CLI command for search
│ ├── browse-cli/ # ra-mcp-browse-cli: CLI command for browse
│ └── tui/ # ra-mcp-tui: Interactive terminal browser
├── resources/ # Historical guide markdown files
├── pyproject.toml # Workspace configuration
└── uv.lock # Shared lockfile
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.
- 9d ago First seen · 977 lines · 10,340 tokens per session scan A 39e996cc1bd2
ra-mcp CLAUDE.md is an instructions file published in the GitHub repository AI-Riksarkivet/ra-mcp (22 stars, last pushed 2d ago), licensed Apache-2.0. It adds 10,340 tokens to every session, about $0.0517 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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