What is skvil-mcp CLAUDE.md?

A project instruction document for Skvil-IA/skvil-mcp, an MCP server that lets AI agents use the Skvil security-scanner API. It records the project's commands, structure, architecture, and important design decisions.

Use it when working on this TypeScript MCP server to install dependencies, compile, lint, format, type-check, run the server, or understand its source files.

It gives an agent the project context needed to build, test, format, and maintain the code consistently instead of guessing how the repository works.

How Skvil-IA/skvil-mcp configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to Skvil-IA/skvil-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/Skvil-IA/skvil-mcp/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/Skvil-IA/skvil-mcp

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/skvil-ia/skvil-mcp/claude-md/github.svg)](https://agentmods.dev/instructions/skvil-ia/skvil-mcp/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/skvil-ia/skvil-mcp/claude-md"><img src="https://agentmods.dev/badge/instructions/skvil-ia/skvil-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.

Your own site · 80×15

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

Per session 670 This file is loaded in full into every session.

When invoked 670 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.

Model	Per session	Once invoked
Fable 5.1	$0.00670	$0.00670
Opus 5	$0.00335	$0.00335
Sonnet 5	$0.00134	$0.00134
Haiku 4.5	$0.00067	$0.00067

Measured 10d ago against content hash 0f5df9da325d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

skvil-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 10d 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 · 57 lines

How it starts

The opening of the file, as written. The whole thing — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

Project Overview

skvil-mcp is a Model Context Protocol (MCP) server that provides AI agents with direct access to the Skvil security scanner API. It allows agents to verify skill safety, submit scan results, and check certifications without manual HTTP calls.

Commands

npm install           # Install dependencies
npm run build         # Compile TypeScript to dist/
npm run dev           # Watch mode (auto-recompile)
npm run lint          # ESLint check
npm run format        # Prettier format
npm run format:check  # Prettier check
npm run typecheck     # TypeScript type check (no emit)
npm start             # Run the MCP server (stdio transport)

After cloning, run npm run build to generate dist/. The dist/ directory is gitignored and regenerated by prepublishOnly during npm publish.

Architecture

src/index.ts — Entry point: creates McpServer, registers tools, connects stdio transport, handles SIGINT/SIGTERM
src/version.ts — Single source of truth for package version (update here when bumping)
src/tools.ts — All 6 MCP tool definitions with Zod schemas, handlers, formatScore (score-to-risk mapping), and formatError (structured error responses by status code)
src/api.ts — HTTP client for api.skvil.com (native fetch, 15s timeout, retry with exponential backoff on 502/503/504)
src/config.ts — API key resolution (env var → mcp-config.json → legacy config), memoized for process lifetime
src/types.ts — TypeScript interfaces for API responses (must match skvil-kedavra backend models)

Key Design Decisions

stdio transport — standard for local MCP servers, spawned as subprocess by the AI client
Auto-registration — skvil_register tool caches the API key in ~/.skvil/mcp-config.json
Zero config — works out of the box with npx @skvil/mcp-server
Native fetch — no HTTP dependencies, Node 18+ built-in
Error handling — all errors are caught and returned as structured MCP error content
HTTPS enforcement — custom API URLs must use HTTPS (except localhost for dev)
Env var compatibility — reads both SKVIL_API_KEY and SKVIL_KEDAVRA_API_KEY for cross-tool compatibility with the Python scanner

Read the full file on GitHub · 57 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.

10d ago First seen · 57 lines · 670 tokens per session scan A 0f5df9da325d

Subscribe to this mod's changes

skvil-mcp CLAUDE.md is an instructions file published in the GitHub repository Skvil-IA/skvil-mcp (1 stars, last pushed 6mo ago), licensed MIT. It adds 670 tokens to every session, about $0.0034 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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skvil-mcp: Instructions file for Claude Code