Oh My Cassette

Turn raw local clips into a finished cut by chatting: beat-synced edits, auto-matched music, subtitles, and transitions through a local stdio MCP server, with a timeline delta and contact-sheet preview every turn before anything renders.

oh-my-cassette-contributors/oh-my-cassette · v0.4.19 · Development & Workflow

Oh My Cassette contributorsOwner verifiedsafe

Trust Score

87

Security

95

Surfaces

6

What is Oh My Cassette?

Oh My Cassette is a published development & workflow plugin for AI coding agents in the mcp ecosystem, developed by Oh My Cassette contributors and distributed through the HOL AI plugin registry. Turn raw local clips into a finished cut by chatting: beat-synced edits, auto-matched music, subtitles, and transitions through a local stdio MCP server, with a timeline delta and contact-sheet preview every turn before anything renders.

Canonical slug: oh-my-cassette-contributors/oh-my-cassette
Version: v0.4.19 · updated Sep 20, 2026
Open data: entity.json (JSON-LD)

Trust & Reputation

HOL Trust Score

87

Factor Analysis

Per-metric points (0–100 each) combined via a weighted average into the overall score.

Installability

100pts

Maintenance

55pts

MCP Posture

100pts

Plugin Security

95pts

Provenance

70pts

Publisher Quality

75pts

Registry Snapshot

Repository: https://github.com/Cassette-Editor/oh-my-cassette
Homepage: https://github.com/Cassette-Editor/oh-my-cassette
Canonical profile: https://hol.org/registry/plugins/oh-my-cassette-contributors%2Foh-my-cassette
Publisher verification: No
Marketplace source: Unknown
Scanner: Broker fallback
Safety label: safe
Digest verified: Yes

5 bundled skills — copy or download SKILL.mdOpen skills

Trust & reputation

Trust & Reputation

HOL Trust Score

87

Factor Analysis

Per-metric points (0–100 each) combined via a weighted average into the overall score.

Installability

100pts

Maintenance

55pts

MCP Posture

100pts

Plugin Security

95pts

Provenance

70pts

Publisher Quality

75pts

Provenance

Plugin root: .
Source repo: https://github.com/Cassette-Editor/oh-my-cassette
Source commit: 4bebe25e619b…
Publisher verified: No
Owner verified: @Crimson725

Continuous scanner CI detected

No action is required. This plugin receives the full trust score.

Verified badge not detected

Add the HOL verified badge to the repository README to score +2% trust. Plugin owners can open that pull request from Guard Plugins.

Security Posture

safe

Safety label

95

Security score

0

High findings

Provider: registry-broker-fallback
Grade: A · safe
Version: Unknown

cisco-skill-scanner: unknown

Findings

lowoperational-securitysupply-chain.lockfile-missing

Repository snapshot does not include a lockfile.

infoskill-securityskill-scan.unavailable

Cisco skill scanner timed out after 60000 ms

infoskill-securityskill-scan.unavailable

Cisco skill scanner timed out after 60000 ms

infoskill-securityskill-scan.unavailable

Cisco skill scanner timed out after 60000 ms

infoskill-securityskill-scan.unavailable

Cisco skill scanner timed out after 60000 ms

infoskill-securityskill-scan.unavailable

Cisco skill scanner timed out after 60000 ms

Oh My Cassette — Frequently asked questions

What is Oh My Cassette?: Oh My Cassette is an AI plugin in the HOL registry. Turn raw local clips into a finished cut by chatting: beat-synced edits, auto-matched music, subtitles, and transitions through a local stdio MCP server, with a timeline delta and contact-sheet preview every turn before anything renders.
How do I install Oh My Cassette?: Install Oh My Cassette in your harness: Codex — codex plugin marketplace add Cassette-Editor/oh-my-cassette; Claude Code — /plugin marketplace add Cassette-Editor/oh-my-cassette; MCP — git clone https://github.com/Cassette-Editor/oh-my-cassette. Full step-by-step guidance is on the HOL plugin page.
How do I install Oh My Cassette in Codex?: To install Oh My Cassette in Codex, start with codex plugin marketplace add Cassette-Editor/oh-my-cassette. The complete step-by-step install guide for Codex is on the HOL plugin page.
How do I install Oh My Cassette in Claude Code?: To install Oh My Cassette in Claude Code, start with /plugin marketplace add Cassette-Editor/oh-my-cassette. The complete step-by-step install guide for Claude Code is on the HOL plugin page.
How do I install Oh My Cassette in MCP?: To install Oh My Cassette in MCP, start with git clone https://github.com/Cassette-Editor/oh-my-cassette. The complete step-by-step install guide for MCP is on the HOL plugin page.
Is Oh My Cassette free?: Pricing for Oh My Cassette is published on its HOL plugin page when the maker schedules a launch.
Who publishes Oh My Cassette?: Oh My Cassette is published by Oh My Cassette contributors and listed on HOL.
Is Oh My Cassette available now?: Oh My Cassette availability is listed on its HOL plugin page.

Install Guidance

Install in Claude Code

Install through the Claude Code plugin marketplace.

Claude Code plugin docs

1
Add the marketplace
Run this inside a Claude Code session.
claude code
2
Install the plugin
Use the plugin name and the marketplace name shown by the previous command.
claude code
3
Scripted alternative
Non-interactive equivalent for scripts and CI pipelines. Add --scope project to pin the install to one repository.
shell

Plugin Manifest

{
  "name": "oh-my-cassette",
  "version": "0.4.19",
  "description": "Edit local project media through a self-contained stdio MCP runtime that connects directly to Cassette.",
  "author": {
    "name": "Oh My Cassette contributors",
    "url": "https://github.com/Cassette-Editor/oh-my-cassette"
  },
  "homepage": "https://github.com/Cassette-Editor/oh-my-cassette",
  "repository": "https://github.com/Cassette-Editor/oh-my-cassette",
  "license": "MIT",
  "keywords": [
    "cassette",
    "video-editing",
    "media",
    "mcp",
    "codex",
    "claude"
  ],
  "skills": "./",
  "mcpServers": "./.registry/mcp.json",
  "interface": {
    "displayName": "Oh My Cassette",
    "developerName": "Oh My Cassette contributors",
    "shortDescription": "Edit project videos through local MCP",
    "longDescription": "Use a local stdio MCP runtime to ingest trusted project media, guide Cassette edits, monitor background jobs, answer follow-up questions, review completion, and return validated export artifacts.",
    "category": "Productivity",
    "capabilities": [
      "Interactive",
      "Read",
      "Write"
    ],
    "websiteURL": "https://github.com/Cassette-Editor/oh-my-cassette",
    "privacyPolicyURL": "https://cassette-editor.github.io/oh-my-cassette/privacy",
    "termsOfServiceURL": "https://cassette-editor.github.io/oh-my-cassette/terms",
    "logo": "./assets/logo-400.png",
    "composerIcon": "./assets/logo-400.png",
    "screenshots": [
      "./assets/contact-sheet.jpg",
      "./assets/ctl-digest.svg"
    ],
    "defaultPrompt": [
      "Edit this project video with Cassette.",
      "Let me choose the Cassette model for this edit.",
      "Add captions and background music to this clip.",
      "Continue this Cassette job from its job ID."
    ],
    "brandColor": "#6D5EF5"
  },
  "registryIndexVersion": 5
}

Marketplace Source

Repo URL: https://github.com/Cassette-Editor/oh-my-cassette
Marketplace path: Unknown
Source path: plugins/Cassette-Editor/oh-my-cassette
Install policy: AVAILABLE

Skills

5 SKILL.md files ship with this plugin. Preview, copy, or download each one, then install them with the Skills CLI.

skills-cli

cassette-model
.agents/skills/cassette-model/SKILL.md
Show or change the Cassette editing model and thinking level for the current media session. Invoke only when the user explicitly asks for the model picker, wants to inspect the current Cassette model, or requests a model/thinking change.
Raw SKILL.md
SKILL.md content is not in this snapshot. Open the raw file to copy it from the source repository.
cassette-video-edit
.agents/skills/cassette-video-edit/SKILL.md
Edit, trim, cut, caption, subtitle, reframe, combine, add background music to, or export video, audio, and image files through Cassette. Use this skill whenever the user asks to change, preview, or render a media file in the project — even if they never say "Cassette" or name a tool — for example "trim the intro off demo.mp4", "add subtitles to this clip", "make me a 30-second cut with music", "why is there dead air at the start". Drives the local Oh My Cassette stdio MCP tools in Codex or Claude as one multi-turn conversation with the Cassette agent, with per-turn timeline previews, guided questions, and rendering only on explicit export.
Raw SKILL.md
SKILL.md content is not in this snapshot. Open the raw file to copy it from the source repository.
cassette-gateway-video-edit
hermes/skills/cassette-video-edit/SKILL.md
Add Hermes gateway media ingestion, background notification, and delivery behavior to the canonical cassette-video-edit MCP workflow.
Raw SKILL.md
SKILL.md content is not in this snapshot. Open the raw file to copy it from the source repository.
cassette-model
skills/cassette-model/SKILL.md
Show or change the Cassette editing model and thinking level for the current media session. Invoke only when the user explicitly asks for the model picker, wants to inspect the current Cassette model, or requests a model/thinking change.
Raw SKILL.md
SKILL.md content is not in this snapshot. Open the raw file to copy it from the source repository.
cassette-video-edit
skills/cassette-video-edit/SKILL.md
Edit, trim, cut, caption, subtitle, reframe, combine, add background music to, or export video, audio, and image files through Cassette. Use this skill whenever the user asks to change, preview, or render a media file in the project — even if they never say "Cassette" or name a tool — for example "trim the intro off demo.mp4", "add subtitles to this clip", "make me a 30-second cut with music", "why is there dead air at the start". Drives the local Oh My Cassette stdio MCP tools in Codex or Claude as one multi-turn conversation with the Cassette agent, with per-turn timeline previews, guided questions, and rendering only on explicit export.
Raw SKILL.md
SKILL.md content is not in this snapshot. Open the raw file to copy it from the source repository.

File Inventory

.agents/skills/cassette-model/SKILL.md

skill

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.agents/skills/cassette-video-edit/references/auth.md

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.agents/skills/cassette-video-edit/references/music.md

file

1,810 bytes

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.agents/skills/cassette-video-edit/references/previews.md

file

2,910 bytes

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.agents/skills/cassette-video-edit/SKILL.md

skill

13,490 bytes

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.claude-plugin/plugin.json

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.codex-plugin/mcp.json

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.codex-plugin/plugin.json

plugin-manifest

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.mcp.json

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.registry/mcp.json

mcp-config

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assets/contact-sheet.jpg

asset

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assets/ctl-digest.svg

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assets/logo-400.png

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hermes/skills/cassette-video-edit/SKILL.md

skill

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opencode.json

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prompts/hermes-edit-brief-optimizer.md

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prompts/jamendo-search-plan.md

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README.md

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SECURITY.md

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skills/cassette-model/SKILL.md

skill

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skills/cassette-video-edit/references/auth.md

skill

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skills/cassette-video-edit/references/music.md

skill

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skills/cassette-video-edit/references/previews.md

skill

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skills/cassette-video-edit/SKILL.md

skill

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