A local MCP server named winnow, configured to run a Python package through uv. MCP is a standard way for an AI agent to call tools provided by another program.

Use it only as a configured local service for an agent that knows how to call winnow. The available entry does not document its concrete tasks.

The supplied information only shows how the server starts; it does not say what tools or data winnow provides. That means its practical purpose cannot be described more specifically from this entry.

winnow — MCP server by VKirill/claude-lane-stack

Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code

/plugin marketplace add VKirill/claude-lane-stack

Claude Code

/plugin install lane-stack

Made for: Claude Code.

Or install lane-stack, the plugin that ships this one along with the rest of its 62 skills, 4 commands, 13 agents, 1 MCP server.

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/mcp/vkirill/claude-lane-stack/lane-stack-winnow/github.svg)](https://agentmods.dev/mcp/vkirill/claude-lane-stack/lane-stack-winnow)

Your own site

<a href="https://agentmods.dev/mcp/vkirill/claude-lane-stack/lane-stack-winnow"><img src="https://agentmods.dev/badge/mcp/vkirill/claude-lane-stack/lane-stack-winnow/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/mcp/vkirill/claude-lane-stack/lane-stack-winnow"><img src="https://agentmods.dev/badge/mcp/vkirill/claude-lane-stack/lane-stack-winnow.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

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. A grade says what 26 rules found in the file — not that it is safe.

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 24d 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.

plugins/lane-stack/.mcp.json · 15 lines

What it actually says

{
  "winnow": {
    "command": "uv",
    "args": [
      "run",
      "-q",
      "--project",
      "${CLAUDE_PLUGIN_ROOT}/winnow/sidecar",
      "python",
      "-m",
      "winnow",
      "mcp"
    ]
  }
}

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.

24d ago First seen · 15 lines scan A 671cf664f203

Subscribe to this mod's changes

winnow is an MCP server published in the GitHub repository VKirill/claude-lane-stack (122 stars, last pushed today), licensed MIT. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. 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 2026-09-23.

Building agents Claude Code agentic-coding ai-agents ai-coding automation claude

winnow

Getting it into your agent

Wrote this? Show the measurements

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

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