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Ratel

MCP Developer Tools

A context‑engineering layer that selectively discloses only the AI tools and skills needed per turn, reducing token costs and improving accuracy without requiring a vector DB.

Rust Latest vercel-ai-sdk-v0.2.0 · 8h ago Security brief →

Features

  • Progressively disclose relevant tools and skills to each agent turn
  • Cuts token usage and restores model accuracy lost to tool overload
  • No vector database required; uses BM25 indexing by default
  • Supports both local execution and OpenAI‑compatible embedding backends

Recent releases

View all 30 releases →
Config change
vercel-ai-sdk-v0.2.0 Breaking risk

RatelOtelIntegration + telemetry removal

Config change
telemetry-ts-v0.2.0 Mixed

RatelOtelIntegration + refactor

Config change
telemetry-ts-v0.1.3 Mixed

startTelemetry + OTEL env var + RS-15 fix

No immediate action
sdk-ts-v0.5.1 New feature

Vercel AI + Mastra adapters

No immediate action
vercel-ai-sdk-v0.1.0 New feature

@ratel-ai/mastra-adapter + adapters

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About

Stars
219
Forks
9
Languages
Rust Python TypeScript
Downloads/week
56 ↓68%
NPM Maintainers
1
Contributors
10
TypeScript
Types included ✓

Install & Platforms

Install via
npm pip

Community & Support

Beta — feedback welcome: [email protected]