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AgentCompany/builtin-skills/Video-maker/remotion-best-practices/rules/subtitles.md
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ZacharyZhang-NY e74dafcd36 Silence render-disposed spam, unbreak bundled skills, drop board wake
Three independently ugly bugs that all fed the same log flood:

* Electron's `WebFrameMain.send` writes every "Render frame was disposed"
  to stderr via `console.error`. When the worker fans a second
  agent-event past a reloading renderer, we produced thousands of
  identical lines and stalled the main loop on stderr I/O. Added a
  `mainFrame.detached` guard so the send is short-circuited before
  Electron's own catch block fires, and installed a targeted filter in
  `suppress-warnings.ts` (now actually imported from the entry point)
  so the specific `console.error("Error sending from webFrameMain:"…)`
  noise never reaches the terminal. Any other payload still surfaces.

* `dispatchAgentMessage` accepted the human-reader sentinel as a wake
  target when an agent replied to `__board__` — `wakeAgentIfPossible`
  then called `db.getAgent("__board__")`, threw, and the dispatcher
  kept repeating on every send. Strip `HUMAN_SENDER_ID` at
  `resolveMessageWakeTargets`, and keep a defense-in-depth guard in the
  heartbeat so a stray caller (future automation fan-out) cannot
  reintroduce the crash.

* Pi's skills loader rejects any SKILL.md whose frontmatter `name`
  diverges from its parent directory. The four bundled `my-writing-style`
  copies declared `name: writing-style-skill`, so every install emitted
  a warning and dropped the skill. They also lived as orphan gitlinks
  (mode 160000 without .gitmodules), and the global `*.md` gitignore
  hid every other SKILL.md from version control. Fixed the frontmatter
  to match the dir, converted the dangling submodules to plain trees,
  and allowlisted `builtin-skills/**/*.md` so a fresh clone carries the
  catalogue instead of silently losing it.
2026-04-20 08:13:48 -04:00

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Markdown

---
name: subtitles
description: subtitles and caption rules
metadata:
tags: subtitles, captions, remotion, json
---
All captions must be processed in JSON. The captions must use the `Caption` type which is the following:
```ts
import type { Caption } from "@remotion/captions";
```
This is the definition:
```ts
type Caption = {
text: string;
startMs: number;
endMs: number;
timestampMs: number | null;
confidence: number | null;
};
```
## Generating captions
To transcribe video and audio files to generate captions, load the [./transcribe-captions.md](./transcribe-captions.md) file for more instructions.
## Displaying captions
To display captions in your video, load the [./display-captions.md](./display-captions.md) file for more instructions.
## Importing captions
To import captions from a .srt file, load the [./import-srt-captions.md](./import-srt-captions.md) file for more instructions.