mcp: Instructions file for Claude Code

CLAUDE.md

mcp CLAUDE.md is an instructions file for Claude Code from sevalla-hosting/mcp. It costs 3,521 tokens per session, scanned A, original, MIT.

Project instructions for a remote MCP server that exposes the Sevalla hosting platform’s API. The server lets agents search for API operations and execute them through isolated JavaScript code.

In plain words
What is it for?
Developing, testing, formatting, linting, and checking the Sevalla MCP server and its API-access code.
Why use it?
They explain the repository layout, required Node.js version, commands, and safety-related runtime details needed to work on the server.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is sevalla-hosting/mcp's own configuration. It tells Claude Code how to work on 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 mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to sevalla-hosting/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/sevalla-hosting/mcp/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/sevalla-hosting/mcp

Made for: Claude Code.

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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.

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Per session 3,521 This file is loaded in full into every session.
When invoked 3,521 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 $0.03521 $0.03521
Opus 5.5 $0.01408 $0.01408
Sonnet 5.5 $0.00704 $0.00704
Haiku 4.5 $0.00352 $0.00352

Measured 16d ago against content hash 8871a1510d28, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

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 16d 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 · 96 lines

How it starts

The opening of the file, as written. The whole thing — 96 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

Remote MCP server for the Sevalla PaaS API (mcp.sevalla.com), designed to pass Anthropic's Claude connector directory review. It exposes 27 tools: 22 purpose-built workflow tools plus 5 generic tools (sevalla_api_search, sevalla_api_read, sevalla_api_create, sevalla_api_update, sevalla_api_delete) that run any other v3 operation by operation ID. There is no code execution and no sandbox: the model only ever sends structured arguments.

Commands

pnpm dev                # Development with --watch (native Node.js)
pnpm start              # Run server (node src/index.ts)
pnpm test               # Unit + e2e tests (node:test), then the e2e suites again as a 2025-era client
pnpm test:unit          # test/*.test.ts
pnpm test:e2e           # test/e2e in both protocol eras: real HTTP server, MCP SDK client, fake Sevalla API
pnpm test:live          # Live checks: known clients' metadata documents; API smoke test and fake API fidelity with SEVALLA_E2E_API_KEY
pnpm eval               # Evals: evals/tasks.ts through headless Claude Code against the fake API; first run (and every harness change) needs --approve-harness
pnpm test:coverage      # Tests with coverage (src/** only)
pnpm sync:operations    # Regenerate src/sevalla/operations.json from the live OpenAPI spec
pnpm check:operations   # Fail if the live spec drifted from operations.json
pnpm lint               # oxlint
pnpm fmt                # oxfmt (auto-fix)
pnpm fmt:check          # oxfmt (check only)
pnpm check:code         # Full check: tsc + oxlint + oxfmt

Node.js Version

Node.js 26 is the runtime (Volta, .nvmrc, the Docker image); the code also runs on Node.js 24, which CI tests. TypeScript runs natively via Node's built-in type stripping (no build step), so only erasable TypeScript syntax works (no enums, namespaces or parameter properties). tsc (TypeScript 7) only type-checks. pnpm 12 is pinned in packageManager; Node 25+ no longer bundles corepack, so the Dockerfile installs that pnpm version with npm. pnpm settings go in pnpm-workspace.yaml when needed (there is none today; the Dockerfile copies it when present, and pnpm 11+ ignores the pnpm field of package.json). pnpm refuses packages published less than a day ago unless they are listed in minimumReleaseAgeExclude there, so a bump to a newer release fails pnpm install --frozen-lockfile until the release is a day old.

Read the full file on GitHub · 96 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. 16d ago Changed · +3 lines · +251 tokens per session 8871a1510d28
  2. 21d ago Changed · +15 lines · +1,833 tokens per session 6a8053cf3a04
  3. 2mo ago First seen · 78 lines · 1,437 tokens per session scan A cc700e3d5dbb

Subscribe to this mod's changes

mcp CLAUDE.md is an instructions file published in the GitHub repository sevalla-hosting/mcp (9 stars, last pushed 15d ago), licensed MIT. It adds 3,521 tokens to every session, about $0.0141 per session on Opus 5.5. 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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