peepshow/ sinks/ slack

Reel #05 Team chat

peepshow sink / slack

SlackChannel post with Block Kit formatting.

Incoming-webhook push. Title, thumbnail, deep link to the first frame.

drop · process · slack

What it does

Post every peepshow run into a Slack channel as a formatted Block Kit message. Includes video title (from container metadata), extraction summary, and a thumbnail of the first key frame.

When to reach for it

  • Notify a #ai channel whenever an agent processes a new demo video
  • Flag long videos that took unusually many frames to summarise
  • Push bug-report videos into a #triage channel with the frames pre-attached

Install

npm i -g peepshow

Use it

peepshow ./bug.mov --sink slack \
  --sink-arg webhook=https://hooks.slack.com/services/...

Make it automatic

Register the sink once — every run fires it afterward. Scope by --when so it only runs for matching videos.

peepshow sinks add slack
peepshow sinks add slack --when extension=mp4,mov
peepshow sinks add slack --when path=/Volumes/Work/

Configuration

  • PEEPSHOW_SLACK_WEBHOOK Incoming-webhook URL for the target channel. required
  • PEEPSHOW_SLACK_USERNAME Override the bot's display name.

Use with an LLM agent

Every peepshow sink reads its config from env vars and receives a single JSON payload on stdin. An LLM agent (Claude Code, Cursor, Windsurf, Gemini, Codex) can drive the Slack sink automatically when three things are true:

  • the env vars below are exported in the agent's shell (or a project .env it can load),
  • the peepshow CLI is on PATH — install with npm i -g peepshow,
  • a peepshow auto-sink is registered for the run (optional but recommended — makes invocation zero-argument).

1. Set the environment

# Add to ~/.zshrc, ~/.bashrc, or a project .env the agent can load
export PEEPSHOW_SLACK_WEBHOOK="..."

2. Register as an auto-sink

peepshow sinks add slack
peepshow sinks add slack --when extension=mp4,mov

3. Example LLM session

You → drop a .mov into Claude Code.

Claude → auto-invokes /peepshow:slides ./clip.mov. peepshow extracts frames + audio, the Slack sink forwards the run to the configured channel. Claude replies with a summary and a link to the created record.

The transcript snippet is posted alongside the frames as a secondary message.

Write your own

A sink is any executable that reads the --emit json payload on stdin. Shell, Node, Python, Go — the spec's in docs/PLUGINS.md. Register persistent ones with peepshow sinks add-cmd 'your-command'.