--- name: Render ChatGPT Chat slug: render-chatgpt-chat category: Automation description: "Assemble a ChatGPT-style video ad from a thread and timeline JSON by recording a simulated mobile chat with Playwright and compositing with ffmpeg. Use when creating a ChatGPT chat-reveal ad where the assistant's answer is the punchline." github: "https://github.com/gooseworks-ai/goose-skills/tree/main/skills/ads/capabilities/render-chatgpt-chat" language: Python stars: 1066 forks: 194 install: "git clone https://github.com/gooseworks-ai/goose-skills" added: 2026-07-20T06:49:32.398Z last_synced: 2026-07-29T06:37:32.758Z canonical_url: "https://dirskills.com/skills/render-chatgpt-chat" --- # Render ChatGPT Chat Assemble a ChatGPT-style video ad from a thread and timeline JSON by recording a simulated mobile chat with Playwright and compositing with ffmpeg. Use when creating a ChatGPT chat-reveal ad where the assistant's answer is the punchline. **Install:** `git clone https://github.com/gooseworks-ai/goose-skills` ## README # render-chatgpt-chat The free renderer for the **chatgpt-chat** video ad format — the "I just asked ChatGPT…" creative, where someone asks ChatGPT a question and the *streamed assistant answer is the punchline* (the brand surfacing as the natural response). Deterministic Playwright + ffmpeg assembly; no generative video of the UI, so the bubble text and streamed answer stay pixel-crisp. This is the **ChatGPT sibling of `render-imessage-chat`**. Reach for this one when ChatGPT is the more credible host for the answer; reach for iMessage when the punchline is a peer's reaction in a DM. The template recipe (DB) supplies the per-brand `thread` + `timeline` + `end_card` config and gates the paid music call (music bed → `create-music-elevenlabs`) to its own capability. ## What it renders One continuous take — never scene-by-scene (every reload flickers): 1. **User types** in the composer with the iOS keyboard up (`composer-type`). 2. **Send-tap is ONE beat** — the user bubble pops, the keyboard slides down, and the header right-cluster swaps (`personPlus/dottedCircle` → `edit/more`) all on the same `t`. Never sequence them across frames. 3. **One gray loading dot** holds ~500ms (never three — three reads as iMessage typing, wrong app), silently (no SFX on the dot). 4. **The assistant answer streams in word-by-word** (`stream-words`, ~7 wps) with a soft opacity ramp; the conversation auto-scrolls to keep it in view. 5. **Crossfade to a designed end card** (wordmark + ⭐ proof row + trust trio + CTA pill) and **mux a ducked music bed** → master MP4. The chat records at the ChatGPT-native **~9:19.5 (default 750×1624)** to match a real iPhone screen recording. **Never stretch the chat to a different aspect ratio** — the end card is scaled-to-fit + padded to the chat's dimensions in stitch, so the chat is never touched. ## Run ```bash cd scripts && npm install # once — installs Playwright npx playwright install chromium # once node record-chat.js --config config.json --out-dir # → master-chat.mp4 + .sfx.json node render-end-card.js --config config.json --out-dir # → scene-end-endcard.mp4 bash stitch.sh --chat /master-chat.mp4 --end /scene-end-endcard.mp4 \ --sfx /master-chat.sfx.json --out /master-final.mp4 \ --pad-color "#ffffff" [--music /music-bed.mp3] [--also-1x1] ``` 1. **`record-chat.js`** — reads `config.json` (`thread` + `timeline` + geometry), renders the bundled `create-chatgpt-mockup` HTML once with every message pending, walks the timeline on `requestAnimationFrame` inside the page, records it as one continuous MP4, and emits the deterministic SFX cue list. 2. **`render-end-card.js`** — fills `end-card.template.html` from `config.end_card` (wordmark/`logo_svg`, stars, proof, trust trio, CTA, colors) → still MP4. This is the SAME generic end card as `render-imessage-chat` (copied verbatim). 3. **`stitch.sh`** — normalizes the end card to the chat's dimensions, crossfades chat → end card, layers the subliminal ChatGPT SFX, optionally ducks a music bed under it, and optionally derives a 1:1 crop. All FREE ffmpeg. Pass `--pad-color` = `end_card.bg` (default `#ffffff`, ChatGPT light mode) so the pad under the end card is seamless. ## The chat body: bundled create-chatgpt-mockup The ChatGPT chat HTML comes from **`create-chatgpt-mockup`** (its `generate.js` + `templates/` produce the light-mode ChatGPT iOS HTML — status bar, header, message rows, streaming word-spans, composer, and the inline iOS keyboard). Those files are **bundled into `scripts/mockup/`** so this capability renders the chat body **standalone** — no sibling fetch of `create-chatgpt-mockup` is required. `record-chat.js` does `require('./mockup/generate.js')`. The keyboard is inlined by the mockup (`renderKeyboard`) — no separate keyboard atom. ## Timeline events (consumed by record-chat.js) | Kind | Meaning | |---|---| | `composer-type` | `{ text, dur_sec }` — type into the composer. SFX = one key-tap per word. | | `composer-clear` | Wipe the composer instantly (fire at send-tap). | | `keyboard-show` / `keyboard-hide` | Slide the iOS keyboard up / down. | | `send-tap` | Pulse the send button. SFX = send-tap. | | `pop` | `{ target: }` — reveal a message row. | | `header-swap` | `{ value: "alt" }` — swap the header right-cluster. | | `loading-dot-show` / `loading-dot-hide` | `{ target: }` — the single gray dot. | | `send-state` | `{ value: "streaming"\|"active" }` — composer send-button state. | | `stream-words` | `{ target, dur_sec, wps }` — reveal the assistant answer word-by-word. SFX = stream-tick every 12 words + response-done at the end. | | `scroll-to` | `{ target, dur_ms }` — smooth-scroll a row into view. | See `scripts/config.example.json` for the canonical thread + timeline (the "one beat" send-tap and the streamed list answer are both wired there). ## Contract - FREE assembly: Playwright record + ffmpeg composite/mux + the bundled SFX. No AI-rendered text — the bubbles, the streamed answer, and the end-card copy are all real HTML/PIL, never invented by a model. - The recipe (DB) supplies the per-brand config: the `thread` (light-mode ChatGPT, assistant message set `stream: true`), the `timeline`, the `end_card` (prefer a real `logo_svg` wordmark), and an optional music bed. - SFX are **subliminal by design** (ChatGPT has no native chime): key-tap -28dB, send-tap -20dB, stream-tick -32dB, response-done -22dB, and **never a cue on the loading dot**. Set `"sfx": false` in the config to ship the chat silent. ## Gaps / routing notes - **Music bed** is an input, not generated here — the recipe gates it to `create-music-elevenlabs` (paid, proxy-routed, billed to the Ads agent) and passes the file into `stitch.sh --music`. - **Bundled SFX are synthesized stand-ins.** The original four wavs (`key-tap`/`send-tap`/`stream-tick`/`response-done`) were lost from Git LFS (the objects 404 on the server), so `assets/sfx/*.wav` are freshly synthesized subliminal clicks/ticks. They work as-is; swap in real wavs (same filenames) for tuned SFX. - **Portability:** everything runs from the fetched `/tmp/gooseworks-scripts/render-chatgpt-chat/scripts/…` — the chatgpt-mockup generator + templates are bundled under `scripts/mockup/`, and the generic end card is bundled under `scripts/`. No `/Users/…` or repo-relative paths, and no required sibling fetch. - Requires **ffmpeg/ffprobe** on PATH and Playwright Chromium (`npx playwright install chromium`). ## Self-QC (per project rule — always /watch the master) - Keyboard is up the whole time the user types, and slides down only on the send-tap beat (never visible while the answer streams). - Send-tap is one beat: user bubble + keyboard-down + header-swap on the same frame. - Exactly one gray loading dot for ~500ms (not three), and no SFX on the dot. - The answer streams word-by-word, left-to-right / top-to-bottom, not all-at-once. - No OpenAI spiral logo above any assistant title (the spiral is empty-state only). - No micro-flicker / scene cuts; the end-card pad color matches `end_card.bg`.