katto

katto is a plugin for Gemini CLI from miracleweasel/katto-mcp. Its token cost is not measured, scanned A, original, MIT.

Katto is a hosted video service that turns long videos into scored, captioned vertical clips. It accepts links or uploads, can re-render clips and captions, and can publish the results.

In plain words
What is it for?
Use it to turn recordings from YouTube, Twitch, Kick, or other supported sources into 9:16 social clips, then revise, translate captions, or publish them.
Why use it?
It removes much of the manual work of finding highlights, cropping them for phone screens, adding captions, and preparing different versions.

Plugin for Gemini CLI

Written for Gemini CLI: a Gemini CLI extension manifest. Also seen: mentions Gemini CLI.

Good fit Use it to turn recordings from YouTube, Twitch, Kick, or other supported sources into 9:16 social clips, then revise, translate captions, or publish them.

Compare 6 plugins from other repositories ↓
Install with agentmods
npx agentmods add plugins/miracleweasel/katto-mcp/gemini-extension
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.

Clone the repo
git clone --depth 1 https://github.com/miracleweasel/katto-mcp

Made for: Gemini CLI.

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.

agentmods badge for katto

README.md
[![agentmods](https://agentmods.dev/badge/plugins/miracleweasel/katto-mcp/gemini-extension/github.svg)](https://agentmods.dev/plugins/miracleweasel/katto-mcp/gemini-extension)
Your own site
<a href="https://agentmods.dev/plugins/miracleweasel/katto-mcp/gemini-extension"><img src="https://agentmods.dev/badge/plugins/miracleweasel/katto-mcp/gemini-extension/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.

agentmods 80×15 button for katto

Your own site · 80×15
<a href="https://agentmods.dev/plugins/miracleweasel/katto-mcp/gemini-extension"><img src="https://agentmods.dev/badge/plugins/miracleweasel/katto-mcp/gemini-extension.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

katto 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.

gemini-extension.json · 12 lines

What it actually says

{
  "name": "katto",
  "version": "0.6.2",
  "description": "Katto's official MCP server: turn long videos (YouTube, Twitch, Kick, uploads…) into scored, captioned 9:16 clips, then re-render, translate captions or publish. 29 tools, hosted, OAuth sign-in.",
  "mcpServers": {
    "katto": {
      "httpUrl": "https://mcp.katto.tech/mcp"
    }
  },
  "contextFileName": "GEMINI.md"
}
Files

What ships with it

3 files beside gemini-extension.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 7d ago Changed 0240f332df34
  2. 24d ago First seen · 12 lines scan A 92a0378ad00d

Subscribe to this mod's changes

katto is a plugin published in the GitHub repository miracleweasel/katto-mcp (4 stars, last pushed 8d 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 2026-10-20.

Related

katto compared with plugins from other repositories

katto next to 6 plugins from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
kattomiracleweasel/katto-mcpPlugin48d agoMITA—Gemini CLI
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maidandavid-engelmann/maidanPlugin9yesterdayMITA—Gemini CLI
cdc-health-mcp-servercyanheads/cdc-health-mcp-serverPlugin512d agoApache-2.0A—Claude Code
todoxbeydemirfurkan/todoxPlugin23d agoMITA—Claude Code