Borrowing it
Nothing to install: this file belongs to kriasoft/mcp-client-gen. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/kriasoft/mcp-client-gen/main/CLAUDE.mdgit clone --depth 1 https://github.com/kriasoft/mcp-client-genWrote 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.
[](https://agentmods.dev/instructions/kriasoft/mcp-client-gen/claude-md)<a href="https://agentmods.dev/instructions/kriasoft/mcp-client-gen/claude-md"><img src="https://agentmods.dev/badge/instructions/kriasoft/mcp-client-gen/claude-md.svg" alt="Measured on agentmods" height="20"></a>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 | $0.01528 | $0.01528 |
| Opus 5 | $0.00764 | $0.00764 |
| Sonnet 5 | $0.00306 | $0.00306 |
| Haiku 4.5 | $0.00153 | $0.00153 |
Grade A, and why
mcp-client-gen 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 7d 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.
How it starts
The opening of the file, as written. The whole thing — 170 lines — stays where its author put it; the contents beside it link to each section on GitHub.
MCP Client Generator
@AGENTS.local.md
Documentation
ADRs (docs/adr/NNN-slug.md): Architectural decisions (reference as ADR-NNN)
SPECs (docs/specs/slug.md): Design specifications (reference as SPEC-slug)
Run Commands
# URL mode (primary)
npx mcp-client-gen <url> # Generate to stdout
npx mcp-client-gen <url> -o <file> # Generate to file
npx mcp-client-gen <url> <file> # Shorthand
# Config mode (uses .mcp.json, .cursor/, .vscode/)
npx mcp-client-gen # Interactive
npx mcp-client-gen -y # Quick defaults
Test Commands
bun test # Unit tests only (src/)
bun test:e2e # E2E tests only (test/e2e/)
bun test:all # Run all tests
bun typecheck # TypeScript check
bun format # Format code with Prettier
bun format:check # Check code formatting
bun validate # Full validation (format, typecheck, tests)
Manual Test Scripts
bun capture:notion # Capture fixtures + generate example
bun capture:notion --fixtures-only # Capture fixtures only
bun smoke:notion # Smoke test generated client (no server)
bun e2e:notion # E2E test with real Notion server
File Map
mcp-client-gen/
├── src/
│ ├── index.ts # Public API exports
│ ├── internal.ts # Internal API exports (mcp-client-gen/internal)
│ │
│ # CLI & User Interface
│ ├── cli.ts # CLI entry - argument parsing, execution modes
│ ├── prompts.ts # Interactive prompts (@clack/prompts)
│ │
│ # Configuration
│ ├── config.ts # MCP config loading (.mcp.json, .cursor/, .vscode/)
│ ├── types.ts # Core type definitions (McpServerConfig)
│ │
│ # MCP Protocol
│ ├── mcp-client.ts # MCP connection (HTTP/SSE), OAuth via oauth-callback
│ ├── introspection.ts # Server capability discovery and caching
│ │
│ # Code Generation
│ ├── codegen/
│ │ ├── index.ts # Codegen module exports
│ │ ├── file-builder.ts # Assembles complete TypeScript file
│ │ ├── class-generator.ts # Client class with tool/resource methods
│ │ ├── tool-input-generator.ts # Tool input interfaces
│ │ ├── schema-to-typescript.ts # JSON Schema → TypeScript types
│ │ └── utils.ts # camelCase, pascalCase helpers
│ │
│ ├── pipeline.ts # Pipeline orchestrator - coordinates all steps
│ └── utils.ts # Shared utilities
│
├── docs/
│ ├── adr/ # Architecture Decision Records
│ └── specs/ # Design specifications
│
├── test/
│ ├── e2e/ # End-to-end tests (.spec.ts)
│ ├── fixtures/ # Test fixtures
│ │ ├── notion/ # Real Notion server data
│ │ └── synthetic/ # Minimal/edge-case schemas
│ └── manual/ # Manual capture scripts
│
├── examples/ # Example generated clients
│ └── notion-client.ts
│
└── package.json
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.
- 7d ago First seen · 170 lines · 1,528 tokens per session scan A 857c060fde06
mcp-client-gen CLAUDE.md is an instructions file published in the GitHub repository kriasoft/mcp-client-gen (18 stars, last pushed 7mo ago), licensed MIT. It adds 1,528 tokens to every session, about $0.0076 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.
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vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.