What is claude-marketplace CLAUDE.md?

Repository instructions for Claude Code, an AI coding assistant, working on a Claude plugin marketplace for Rossum.ai workflows. They describe the marketplace structure, its Rossum-specific plugin, tests, and continuous integration checks.

Use them when developing or reviewing this repository, especially when adding plugins or skills, changing the Rossum API server, updating documentation, or running tests and CI.

They give the coding assistant the project’s layout and rules before it changes code. This reduces incorrect edits to plugins, skills, the MCP server, and documentation.

How rossumai/claude-marketplace configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to rossumai/claude-marketplace. 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/rossumai/claude-marketplace/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/rossumai/claude-marketplace

Made for: Claude Code.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/rossumai/claude-marketplace/claude-md/github.svg)](https://agentmods.dev/instructions/rossumai/claude-marketplace/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/rossumai/claude-marketplace/claude-md"><img src="https://agentmods.dev/badge/instructions/rossumai/claude-marketplace/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/rossumai/claude-marketplace/claude-md"><img src="https://agentmods.dev/badge/instructions/rossumai/claude-marketplace/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 2,077 This file is loaded in full into every session.

When invoked 2,077 The same file — it is already loaded in full.

Security scan A 1 finding. 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.

Model	Per session	Once invoked
Fable 5.1	$0.02077	$0.02077
Opus 5.5	$0.00831	$0.00831
Sonnet 5.5	$0.00415	$0.00415
Haiku 4.5	$0.00208	$0.00208

Measured 1mo ago against content hash 91d3c93c2d09, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

claude-marketplace 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 1mo 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.

- Single-file Python, zero external dependencies (stdlib `urllib` + optional `certifi` for SSL) — the `tests/test_runtime_contract.py` guard enforces the stdlib-only contract

CLAUDE.md · 47 lines

How it starts

The opening of the file, as written. The whole thing — 47 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.

What this is

A Claude Code plugin marketplace for Rossum.ai workflows (https://code.claude.com/docs/en/plugin-marketplaces). Ships one plugin:

rossum-sa — Skills, reference packs, and an MCP server for Rossum SA work

Architecture

Marketplace → Plugins → Skills + MCP servers

.claude-plugin/marketplace.json lists available plugins
Each plugin lives under plugins/<name>/ with its own .claude-plugin/plugin.json
Skills are Markdown files at plugins/<name>/skills/<skill-name>/SKILL.md
The rossum-sa plugin ships invocable skills (analyze, dead-code, document, implement, etc.) plus autoloaded *-reference reference packs (user-invocable: false). README.md is the authoritative list and count — the CI doc-sync guard keeps it accurate, so don't hardcode counts here.

MCP server (plugins/rossum-sa/mcp-servers/rossum-api/server.py):

Single-file Python, zero external dependencies (stdlib urllib + optional certifi for SSL) — the tests/test_runtime_contract.py guard enforces the stdlib-only contract
Implements MCP JSON-RPC over stdio (reads/writes newline-delimited JSON on stdin/stdout)
Tools are registered via the @_tool decorator which populates TOOLS and HANDLERS dicts
Three annotation levels control permission prompts: _READ_ONLY, _WRITE, _DESTRUCTIVE. They describe the effect on the Rossum org, never on the local disk — a pure dry-run/preview POST is _READ_ONLY, and so is a tool that writes a local file (the .rossum-cache/ dumps, rossum_get_schema's out_file_path). Never demote a read tool to _WRITE because it touches the filesystem; the rationale is at the _READ_ONLY definition in server.py
Manages its own auth state (_cached_token, _cached_base_url) — no persistent credentials. Two ways in: rossum_set_token (interactive) and a one-shot ROSSUM_TOKEN/ROSSUM_API_URL bootstrap in _ensure_connection, for sessions with no user to answer the prompt. _connection_source keeps them apart — an explicit connection must never fail over to the environment's org behind a 401, and the env path accepts Rossum hosts only
All Rossum API calls go through _http_request() which handles auth, errors, and 401 invalidation
Pagination is handled by _paginate() for list endpoints and _rossum_list() wrapper

Read the full file on GitHub · 47 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.

1mo ago Changed · +173 tokens per session 91d3c93c2d09
1mo ago Changed · +1 lines · +258 tokens per session 7f086c0e1293
2mo ago Changed · +2 lines · +577 tokens per session 6fc719abff66
2mo ago First seen · 44 lines · 1,069 tokens per session scan A 1de1dbaf98cc

Subscribe to this mod's changes

claude-marketplace CLAUDE.md is an instructions file published in the GitHub repository rossumai/claude-marketplace (5 stars, last pushed 5d ago), licensed MIT. It adds 2,077 tokens to every session, about $0.0083 per session on Opus 5.5. 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 2026-08-31.

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claude-marketplace: Instructions file for Claude Code