sandbox-subtitle

name	sandbox-subtitle
description	Parse and stringify SRT/WebVTT captions in a Code node or CodeAct action, with subtitle running on the host

Captions in the sandbox

Specifier: @nodetool-ai/sandbox-subtitle. Import it at the top of the body.

The published subtitle bundle uses streams the guest refuses, so this pack is a host module. You work with plain cue objects.

parse — SRT or VTT to cues

import { parse } from "@nodetool-ai/sandbox-subtitle";

const cues = await parse(inputs.captions);
return { cues };

Each cue is { start, end, text } with times in milliseconds.

stringify — cues to SRT or VTT

import { stringify } from "@nodetool-ai/sandbox-subtitle";

const srt = await stringify(inputs.cues, { format: "SRT" });
return { srt };

Pass { format: "WebVTT" } for VTT.

Gotchas

• Async host calls. Always await.
• Cue text keeps newlines. Split on \n if you need lines.