watch

watch is a command for coding agents from callmejustdodo/popcorn. It costs 18 tokens per session (142 once invoked), scanned A, original, MIT.

A command that opens a supplied YouTube link in your configured browser. A separate watcher can then play or pause that browser tab while you work with the coding agent.

In plain words
What is it for?
Use it to load a YouTube video for background watching or listening during an agent session.
Why use it?
It removes the need to switch applications and open the video manually before using the watcher.

Command

Part of the popcorn plugin — 3 commands, 3 hooks shipped together

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.

agentmods
npx agentmods add commands/callmejustdodo/popcorn/watch
Clone the repo
git clone --depth 1 https://github.com/callmejustdodo/popcorn

Or install popcorn, the plugin that ships this one along with the rest of its 3 commands, 3 hooks.

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 watch

README.md
[![agentmods](https://agentmods.dev/badge/commands/callmejustdodo/popcorn/watch.svg)](https://agentmods.dev/commands/callmejustdodo/popcorn/watch)
Your own site
<a href="https://agentmods.dev/commands/callmejustdodo/popcorn/watch"><img src="https://agentmods.dev/badge/commands/callmejustdodo/popcorn/watch.svg" alt="Measured on agentmods" height="20"></a>
Per session 18 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 142 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 $0.00018 $0.00142
Opus 5 $0.00009 $0.00071
Sonnet 5 $0.00004 $0.00028
Haiku 4.5 $0.00002 $0.00014

Measured 3d ago against content hash 02fb8f94f4c3, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

watch 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.

commands/watch.md · 17 lines

What it actually says

Open the YouTube URL $ARGUMENTS in the configured browser (defaults to Google Chrome, override with the CLAUDE_YOUTUBE_BROWSER env var) by running:

open -a "${CLAUDE_YOUTUBE_BROWSER:-Google Chrome}" "$ARGUMENTS"

After opening, reply with one short sentence confirming the video is loaded. From now on the popcorn plugin will auto-resume this tab whenever I submit a prompt and pause it the moment you finish or need my input.

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 · 17 lines · 18 tokens per session scan A 02fb8f94f4c3

Subscribe to this mod's changes

watch is a command published in the GitHub repository callmejustdodo/popcorn (9 stars, last pushed 3mo ago), licensed MIT. It adds 18 tokens to every session and 142 once invoked, about $0.0001 per session on Opus 5. 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.