byted-las-audio-extract-and-split

Audio Extraction and Splitting (las_audio_extract_and_split)

Use this Skill when the user needs to extract audio tracks from videos or split long audio by rules (such as duration, silence).

Notes (⚠️ Must be followed)

Never ask the user to enter AccessKey and SecretKey.
Files can only be downloaded using the las-cli tos download command (compatible with both tos and non-tos resources).
las-cli operators call and las-cli price command outputs are very important and must be returned to the user in full.

Copy this checklist and track progress:

执行进度：
- [ ] Step 0: 前置检查
- [ ] Step 1: 初始化与准备
- [ ] Step 2: 预估价格
- [ ] Step 3: 执行任务并呈现结果
- [ ] Step 4: 失败排查

Version check (required): Please run las-cli install 0.3.8. If the las-cli command does not exist, run npm i -g "@volcengine/las-cli@0.3.8"

New version reminder: Please run npm info @volcengine/las-cli version to check the latest available Skill version (las-cli corresponds one-to-one with the Skill version). If the returned version is higher than the version marked for this Skill, first prompt the user to upgrade the current Skill. Upgrade method: ask the user to send the natural language instruction 帮我安装byted-las-audio-extract-and-split技能, then wait for the installation to complete automatically.
Authentication check: Prefer the platform identity automatically injected at runtime; if the current environment does not inject it automatically, then run las-cli config show to confirm that the legacy credentials las.apiKey and volcengine.region are configured.

Upload resources: If the input is a local media file, first upload it to TOS.

las-cli tos upload ./input.mp4
# 假设返回 "tos_url": "tos://my-bucket/inputs/xxx.mp4"

Prepare parameters: Create params.json, specify the input, output, and splitting strategy, and note that output_path should include a unique identifier to avoid overwriting existing files.
```
{
  "input_path": "tos://my-bucket/inputs/xxx.mp4",
  "output_path": "tos://my-bucket/outputs/audio_split/",
  "split_mode": "duration",
  "split_duration": 60
}
```

las-cli price The command output is very important; do not simplify, modify, or summarize it in any way.

Calculate price: Must fully return the output of the following command (in markdown format)

las-cli price las_audio_extract_and_split \
  --params-file ./params.json \
  --format markdown

User confirmation: After outputting the estimated price,must wait for user confirmation。

las-cli operators call The command output is very important; do not simplify, modify, or summarize it in any way.

Execute: Must fully return the output of the following command (in markdown format)

las-cli operators call las_audio_extract_and_split \
  --params-file ./params.json \
  --format markdown \
  --out ./result.md

Keep as is.

Check input/output: Confirm whether the TOS path exists, is readable, and is writable.
Check configuration: las-cli config show。
View help: las-cli operators help las_audio_extract_and_split, check the splitting parameters.