winnow

A plugin that puts many MCP servers—add-ons that give an AI assistant access to outside tools—behind one gateway with four general operations.

In plain words
What is it for?
Finding tools, loading a selected tool, calling it, and running code through the Winnow gateway.
Why use it?
It reduces the amount of tool information placed in the assistant's working context when many servers are available.

Plugin for Claude Code

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Claude Code
/plugin marketplace add Cambrionic/winnow
agentmods
npx agentmods add plugins/cambrionic/winnow/plugin
Clone the repo
git clone --depth 1 https://github.com/Cambrionic/winnow

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

winnow 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 today.

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.

plugin/.claude-plugin/plugin.json · 11 lines

What it actually says

{
  "name": "winnow",
  "displayName": "Winnow",
  "version": "0.1.0",
  "description": "Use many MCP servers without context bloat. Winnow hides all your MCP servers behind one gateway exposing just 4 tools (search_tools / load_tool / call_tool / run_code), so the model spends a fraction of the context.",
  "author": { "name": "Cambrionic", "url": "https://github.com/Cambrionic" },
  "homepage": "https://github.com/Cambrionic/winnow",
  "repository": "https://github.com/Cambrionic/winnow",
  "keywords": ["mcp", "context", "gateway", "tools", "token-efficiency"]
}
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. today First seen · 11 lines scan A e984193eb3f1

Subscribe to this mod's changes

winnow is a plugin published in the GitHub repository Cambrionic/winnow (0 stars, last pushed 18d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.