What is mcp-turso-cloud CLAUDE.md?

Repository instructions for an MCP server that connects language models to Turso, a hosted SQLite database service. They describe coding rules, commands, authentication levels, and safe database operations.

Use them when changing, building, testing, or releasing the Turso integration. They also explain how organization-level and database-level authentication work.

They give the coding agent project-specific rules and security boundaries, reducing the risk of unsafe database access or incorrect development steps.

How spences10/mcp-turso-cloud configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to spences10/mcp-turso-cloud. 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/spences10/mcp-turso-cloud/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/spences10/mcp-turso-cloud

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/spences10/mcp-turso-cloud/claude-md.svg)](https://agentmods.dev/instructions/spences10/mcp-turso-cloud/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/spences10/mcp-turso-cloud/claude-md"><img src="https://agentmods.dev/badge/instructions/spences10/mcp-turso-cloud/claude-md.svg" alt="Measured on agentmods" height="20"></a>

Per session 1,607 This file is loaded in full into every session.

When invoked 1,607 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	$0.01607	$0.01607
Opus 5	$0.00804	$0.00804
Sonnet 5	$0.00321	$0.00321
Haiku 4.5	$0.00161	$0.00161

Measured 8d ago against content hash c6e81696508b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

mcp-turso-cloud 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 8d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

mcp-turso-cloud CLAUDE.md — 100% identical, 0 lines differ

CLAUDE.md · 229 lines

How it starts

The opening of the file, as written. The whole thing — 229 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

Unbreakable rules

you must never read .env files even when explicitly asked to
when defining function and variable names they must be in snake case
you must not ask to run pnpm dev this adds no value to the user

Project Overview

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

This is an MCP (Model Context Protocol) server that provides integration between Turso databases and LLMs. It implements a two-level authentication system for organization-level and database-level operations.

Development Commands

Build & Development:

pnpm build - Compile TypeScript and make executable
pnpm start - Run the compiled server
pnpm dev - Development mode with MCP inspector
pnpm changeset - Version management
pnpm release - Build and publish to npm

Package Manager: Uses pnpm exclusively

Architecture & Key Concepts

Two-Level Authentication:

Organization-level: Uses TURSO_API_TOKEN for platform operations
Database-level: Auto-generated tokens cached for performance

Security Model:

execute_read_only_query - SELECT/PRAGMA only (safe operations)
execute_query - Destructive operations (INSERT/UPDATE/DELETE/etc.)
This separation allows different approval requirements

Core Modules:

/src/tools/ - MCP tool implementations
/src/clients/ - Database and organization API clients
/src/common/ - Shared types and error handling
/src/config.ts - Zod-validated configuration

Key Dependencies:

@modelcontextprotocol/sdk - MCP framework
@libsql/client - Turso/libSQL client
zod - Runtime validation

Configuration

Required Environment Variables:

TURSO_API_TOKEN - Turso Platform API token
TURSO_ORGANIZATION - Organization name

Optional Variables:

TURSO_DEFAULT_DATABASE - Default database context
TOKEN_EXPIRATION - Token expiration (default: '7d')
TOKEN_PERMISSION - Default permission level

Read the full file on GitHub · 229 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.

8d ago First seen · 229 lines · 1,607 tokens per session scan A c6e81696508b

Subscribe to this mod's changes

mcp-turso-cloud CLAUDE.md is an instructions file published in the GitHub repository spences10/mcp-turso-cloud (18 stars, last pushed 4d ago), licensed MIT. It adds 1,607 tokens to every session, about $0.0080 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 2026-08-30.

mcp model-context-protocol turso turso-db vector-database

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Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

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mcp-turso-cloud: Instructions file for Claude Code