safe-agentic-workflow: Command for Gemini CLI

.gemini/commands/media/scene-detect.toml

scene-detect is a command for Gemini CLI from bybren-llc/safe-agentic-workflow. It costs 0 tokens per session (888 once invoked), scanned A, original, MIT.

A video-analysis command that detects where one scene changes to another and identifies the transition type, such as a cut, fade, dissolve, or wipe.

In plain words
What is it for?
Use it to produce a timestamped list of hard cuts and gradual transitions in supported video files.
Why use it?
It helps locate scene boundaries and understand the structure of a video without manually scanning the entire file.

Command for Gemini CLI

Written for Gemini CLI: installed under .gemini/.

This is bybren-llc/safe-agentic-workflow's own configuration. It tells Gemini CLI how to work on safe-agentic-workflow itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything safe-agentic-workflow configures →

Reuse

Borrowing it

Nothing to install: this file belongs to bybren-llc/safe-agentic-workflow. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/bybren-llc/safe-agentic-workflow/main/.gemini/commands/media/scene-detect.toml
Clone the repo
git clone --depth 1 https://github.com/bybren-llc/safe-agentic-workflow

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 scene-detect

README.md
[![agentmods](https://agentmods.dev/badge/commands/bybren-llc/safe-agentic-workflow/scene-detect.svg)](https://agentmods.dev/commands/bybren-llc/safe-agentic-workflow/scene-detect)
Your own site
<a href="https://agentmods.dev/commands/bybren-llc/safe-agentic-workflow/scene-detect"><img src="https://agentmods.dev/badge/commands/bybren-llc/safe-agentic-workflow/scene-detect.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 888 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00000 $0.00888
Opus 5 $0.00000 $0.00444
Sonnet 5 $0.00000 $0.00178
Haiku 4.5 $0.00000 $0.00089

Measured 3d ago against content hash 5f1428e0411f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

scene-detect 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 3d 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.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

.gemini/commands/media/scene-detect.toml · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

description = "Detect scene changes and transitions in video"

prompt = """

Scene Detect Command

Detect scene changes and transitions in video files using Gemini's multimodal video capabilities.

Target: {{args}}

Supported Formats

MP4, MOV, AVI, MKV, WEBM

Workflow

1. Detect Video File

Verify the target video file exists and identify its format:

!{file {{args}} 2>/dev/null || echo "File not found"}

2. Analyze for Transitions

Scan the video for scene boundaries:

  • Monitor for significant visual changes between frames
  • Detect changes in color palette, composition, and content
  • Identify both hard cuts and gradual transitions
  • Track audio changes that coincide with visual transitions

3. Classify Transition Types

Categorize each detected transition:

  • Cut: Instantaneous change from one shot to another
  • Fade In: Scene gradually appears from black (or white)
  • Fade Out: Scene gradually disappears to black (or white)
  • Dissolve: One scene gradually blends into the next
  • Wipe: One scene replaces another with a moving boundary
  • Jump Cut: Cut within the same scene with a noticeable time skip

4. Generate Scene List

Markdown Report:

## Scene Detection Report

### File Info
- **File**: [filename]
- **Duration**: [estimated duration]
- **Scenes Detected**: [count]
- **Average Scene Length**: [duration]

### Scene List

| Scene | Start      | End        | Duration | Transition In | Description          |
|-------|------------|------------|----------|---------------|----------------------|
| 1     | 00:00:00   | 00:00:12   | 12s      | Fade In       | Exterior wide shot   |
| 2     | 00:00:12   | 00:00:28   | 16s      | Cut           | Interior close-up    |
| 3     | 00:00:28   | 00:00:45   | 17s      | Dissolve      | Montage sequence     |
| 4     | 00:00:45   | 00:01:03   | 18s      | Cut           | Dialogue scene       |

### Transition Summary
- **Cuts**: 12
- **Fades**: 3
- **Dissolves**: 2
- **Other**: 1

Read the full file on GitHub · 104 lines

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. 3d ago First seen · 104 lines · 0 tokens per session scan A 5f1428e0411f

Subscribe to this mod's changes

scene-detect is a command published in the GitHub repository bybren-llc/safe-agentic-workflow (406 stars, last pushed 1mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 888 tokens. 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 2026-09-03.