SkillsAdd

smithery/neversight

caption-convert

Convert subtitle/caption files between .srt, .vtt, and .ass using the caption-convert CLI.

Installation

$ npx skills add smithery/neversight --skill caption-convert
View on skills.sh ↗ Website ↗

Summary

  • Convert subtitle/caption files between .srt, .vtt, and .ass using the caption-convert CLI.
  • Use when asked to convert subtitles, run/verify the caption-convert command, or explain its format handling and limitations.
  • Includes a bundled CLI in scripts/cli.mjs for use outside this repo.

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More details

Agent compatibility

Declared targets from SKILL.md / docs. Unmarked agents are not listed — the skill may still install via the CLI.

Claude Code Not declared
Cursor Not declared
Codex Not declared
GitHub Copilot Not declared
Windsurf Not declared
Gemini CLI Not declared
Cline Not declared
OpenCode Not declared

Package contents

Files included with this skill beyond the listing page.

  • skill md SKILL.md 2,002 B
  • docs SUMMARY.md 307 B

History

  1. First recorded snapshot · 0 installs

SKILL.md

Caption Convert

Overview

Convert subtitle files between SRT, WebVTT, and ASS using the local caption-convert CLI. Rely on file extensions to pick input/output formats and keep conversion notes in mind.

Quick Start

  • Run after global install: caption-convert input.srt output.vtt
  • Run from repo without install: node .\\src\\cli.mjs input.vtt output.ass
  • Use extensions .srt, .vtt, or .ass for both source and target
  • Requires Node.js 18+

Bundled Tool (scripts/cli.mjs)

If the repo is not available, use the bundled CLI in scripts/cli.mjs:

  1. Copy scripts/cli.mjs into a working folder.
  2. Run directly: node .\\cli.mjs input.srt output.vtt

Workflow

  1. Confirm the source/target paths end with supported extensions.
  2. Run the CLI from the repo or after a global install.
  3. Spot-check the output for timing and header correctness.
  4. Call out format limitations that may drop styling/metadata.

Format Notes and Limitations

  • Infer formats strictly from filename extensions; unsupported or missing extensions exit with usage.
  • Skip cues with invalid or unparseable time lines.
  • Output .vtt always includes a WEBVTT header.
  • Convert .ass output with a fixed header and default styles; styling from source is not preserved.
  • Strip ASS override tags ({...}) and convert \\N/\\n to line breaks on input.

Examples

caption-convert demo.srt demo.vtt
caption-convert demo.vtt demo.ass
node .\src\cli.mjs demo.ass demo.srt

Troubleshooting

  • If the CLI prints usage, check that both paths are provided and use supported extensions.
  • Ensure Node.js 18+ is available when running via node.