SOCIAL MEDIA

React With an Emoji to Turn a Slack Review Into a Clip

When someone adds a chosen emoji to a customer-quote message in Slack, it builds a narrated captioned video from that quote, uploads it to R2.

CategorySocial Media
Enginesim
Difficultyintermediate
Triggerevent
Steps6
Setup~15 min

How it runs

The automated pipeline, trigger to output.

  • TriggerEmoji reaction added in SlackSlack
  • ActionExtract quote + draft script (OpenAI)OpenAI
  • ActionGenerate voiceover (ElevenLabs)ElevenLabsElevenLabs
  • ActionRender captioned video (Replicate)ReplicateReplicate
  • ActionUpload + host MP4 on R2CloudflareCloudflare R2
  • OutputReply in Slack thread with linkSlack

What it does

It listens for a designated emoji reaction on Slack messages. When a teammate tags a pasted customer quote with that emoji, the workflow spins it into a captioned testimonial video, hosts it, and replies in-thread with a shareable link.

When to use it

Great for teams where praise shows up organically in Slack — support wins, sales call notes, founder DMs. Anyone can promote a quote to a polished clip with a single reaction, no separate tooling.

How it works

  1. 1A Slack reaction-added event triggers when the chosen emoji is applied to a message.
  2. 2OpenAI extracts the testimonial quote from the message and drafts a script with captions.
  3. 3ElevenLabs generates the voiceover narration.
  4. 4Replicate renders the vertical captioned video.
  5. 5The MP4 is uploaded to Cloudflare R2 for hosting and a public link is minted.
  6. 6The workflow replies in the original Slack thread with the shareable video link.

Set it up

What you configure once, before turning it on.

  1. 1
    Connect SlackChannels, DMs, threads, mentions.
  2. 2
    Connect OpenAIModels, embeddings, files.
  3. 3
    Connect ElevenLabsText-to-speech, voice cloning.
  4. 4
    Connect ReplicateImage, video, and model inference.
  5. 5
    Connect Cloudflare R2Object storage, S3-compatible.
  6. 6
    Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
  7. 7
    Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
  8. 8
    Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.

Run this workflow in your colony.

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