anno-mcp: Instructions file for Claude Code

CLAUDE.md

anno-mcp CLAUDE.md is an instructions file for Claude Code from nestordemeure/anno-mcp. It costs 3,672 tokens per session, scanned A, original, Apache-2.0.

An MCP server for searching ANNO, the Austrian National Library’s online archive of historical newspapers, and retrieving newspaper pages and text.

In plain words
What is it for?
Use it when changing full-text newspaper search, date or publication filters, page results, OCR downloads, cached requests, or the command-line and MCP interfaces.
Why use it?
It documents the supported search filters, result snippets, citations, image crops, OCR text, caching, and request limits so changes preserve the archive workflow.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: reads .claude/ paths; mentions CLAUDE.md.

This is nestordemeure/anno-mcp's own configuration. It tells Claude Code how to work on anno-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything anno-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to nestordemeure/anno-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.

Copy the file
curl -O https://raw.githubusercontent.com/nestordemeure/anno-mcp/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/nestordemeure/anno-mcp

Made for: Claude Code.

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Per session 3,672 This file is loaded in full into every session.
When invoked 3,672 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.03672 $0.03672
Opus 5 $0.01836 $0.01836
Sonnet 5 $0.00734 $0.00734
Haiku 4.5 $0.00367 $0.00367

Measured 12d ago against content hash a8e83589766d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

anno-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 12d 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.

CLAUDE.md · 146 lines

How it starts

The opening of the file, as written. The whole thing — 146 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ANNO MCP Server

An MCP server for a search of ANNO (AustriaN Newspapers Online), the historical newspaper archive of the Österreichische Nationalbibliothek (ÖNB), and for retrieval of its newspapers.

Stack

  • Python ≥3.12, uv, fastMCP ≥2.0.0, httpx ≥0.27.0

Functions

  • A full-text search with the boolean operators (AND, OR, NOT), exact phrases and a wildcard at the end of a word
  • Filters for the date range, the title, the place, the language, the subject and the medium (newspaper against periodical)
  • Page-level KWIC snippets that resolve a result to a page of an issue, with citation URLs and IIIF crops
  • An OCR text download for each page or each issue, with a local cache
  • Pagination at 10 results for each page, fixed by the server

Structure

anno-mcp/
├── .claude/skills/anno-search/   # Skill documenting the CLI
├── src/anno_mcp/
│   ├── __init__.py
│   ├── client.py           # API client + caching
│   ├── cli.py              # `anno` command-line interface
│   ├── paths.py            # Cache location resolution
│   ├── ratelimit.py        # Cross-process request pacing
│   ├── server.py           # FastMCP tools
│   └── install.py          # MCP server installer
├── pyproject.toml
└── CLAUDE.md               # This file

client.py holds all the behaviour. server.py and cli.py are thin presentation layers over it, so the search semantics and the cache stay identical for each method of access. The CLI shows each filter without a condition. The MCP server hides them behind --enable-advanced-search.

API Details

ANNO publishes no API. This client uses two services that have no documentation and no authentication.

Search — the REST backend of the AnnoSearch application:

  • Base URL: https://anno.onb.ac.at/anno-suche/rest
  • Endpoints: /search/simple, /search/complex, /search/complex/config, /search/snippet
  • A person found these when they read the Angular bundle at /anno-suche/main-<hash>.js, which contains apiUrl:"/anno-suche/rest" and the four call sites. The hash of the bundle changes at each release. Find it again. Do not put it in the code.
  • Response format: JSON, no key, no cookie

Read the full file on GitHub · 146 lines

Changes

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.

  1. 12d ago First seen · 146 lines · 3,672 tokens per session scan A a8e83589766d

Subscribe to this mod's changes

anno-mcp CLAUDE.md is an instructions file published in the GitHub repository nestordemeure/anno-mcp (0 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 3,672 tokens to every session, about $0.0184 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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