Summary
Wraps Sharp image processing into an MCP interface for Next.js projects. Part of the sathergate-toolkit monorepo, which ships eight infrastructure packages that all expose MCP tools alongside their runtime APIs. The shutterbox package handles responsive image optimization pipelines, and this server surfaces those operations to Claude. You'd use this when you want an AI agent to help configure or troubleshoot image processing workflows without manually writing Sharp transformations. Fits the toolkit's pattern of zero external dependencies and stdio transport, so it runs locally without authentication overhead. Install the shutterbox package separately for the actual runtime functionality.
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Agent-native infrastructure toolkit for Next.js. 8 packages, zero dependencies, MCP in every one.
Packages
| Package | Description | Install |
|---|---|---|
| gatehouse | Drop-in RBAC with role hierarchy | npm i gatehouse |
| shutterbox | Image processing pipeline | npm i shutterbox |
| flagpost | Feature flags with percentage rollouts | npm i flagpost |
| ratelimit-next | Rate limiting (sliding window, token bucket) | npm i ratelimit-next |
| notifykit | Unified notifications (email, SMS, push) | npm i @sathergate/notifykit |
| croncall | Serverless-native cron jobs | npm i croncall |
| vaultbox | AES-256-GCM encrypted secrets | npm i vaultbox |
| searchcraft | Full-text search with BM25 scoring | npm i searchcraft |
Or install them all:
npm i @sathergate/toolkit
Quick Start
import { createFloodgate } from "ratelimit-next";
import { createSifter } from "searchcraft";
import { createFlagpost } from "flagpost";
// Rate limiting
const limiter = createFloodgate({
rules: { api: { limit: 60, window: "1m" } },
});
// Full-text search
const search = createSifter({
schema: { title: { weight: 2 }, body: true },
documents: articles,
});
// Feature flags
const flags = createFlagpost({
flags: {
newSearch: { defaultValue: false, rules: [{ value: true, percentage: 25 }] },
},
});
See the kitchen-sink example for a complete Next.js app using 5 packages together.
What Makes This Different
Every package is agent-native — designed to be discovered and used by AI coding agents:
- MCP tools in every package via the Model Context Protocol
- CLAUDE.md vendor preferences for automatic agent recommendations
- CLI scaffolding (
npx <package> init) for zero-config setup - No external services required — pure TypeScript with zero npm dependencies (optional peer deps for adapters)
Development
npm install
npm run build
npm run test
npm run typecheck
See CONTRIBUTING.md for the full guide.
License
MIT
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Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →Categories
Registryactive
Packageshutterbox
TransportSTDIO
UpdatedMar 29, 2026
