Enhance documentation

enhance-dev recording append-audio-chunk

Commit metadata for the uploaded audio chunk at this index, then reserve the next upload.

enhance-dev recording append-audio-chunk

enhance-dev recording append-audio-chunk [options]

Arguments

This command takes no positional arguments.

Options

Option	Required	Default	Meaning
`--recording-id <string>`	Yes	None	Recording id, from `enhance recording list` or `recording start`.
`--index <number>`	Yes	None	Zero-based chunk index expected by the current recording upload.
`--first-ms <number>`	Yes	None	Start offset of this audio chunk, in milliseconds.
`--last-ms <number>`	Yes	None	End offset of this audio chunk, in milliseconds.
`--bytes <number>`	Yes	None	Exact byte length of the content uploaded through the signed URL.
`--epoch [number]`	No	`0`	Zero-based independently decodable audio segment number.
`--starts-epoch [boolean]`	No	`false`	True when this audio chunk contains its epoch container header.
`--etag [string]`	No	None	ETag from the already-uploaded audio chunk at `--index`; omit only when abandoning it.
`--json <json>`	No	None	Complete procedure input as JSON; do not combine it with field flags.
`--client-token <uuid>`	No	None	Stable UUID to reuse when retrying the exact same mutation.

Input

This command presents the capability recording.appendAudioChunk. It has write effect and single idempotency.

Show complete input JSON Schema

{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","properties":{"recordingId":{"type":"string","format":"uuid","pattern":"^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$"},"index":{"type":"integer","minimum":0,"maximum":9007199254740991},"firstMs":{"type":"integer","minimum":0,"maximum":9007199254740991},"lastMs":{"type":"integer","minimum":0,"maximum":9007199254740991},"bytes":{"type":"integer","minimum":1,"maximum":9007199254740991},"epoch":{"default":0,"type":"integer","minimum":0,"maximum":9007199254740991},"startsEpoch":{"default":false,"type":"boolean"},"etag":{"type":"string","minLength":1,"maxLength":200}},"required":["recordingId","index","firstMs","lastMs","bytes"]}

Output

This command writes JSON records to standard output. Returns a typed recording.appendAudioChunk result from the Enhance API without transport-specific prose.

Show complete output JSON Schema

{"$schema":"https://json-schema.org/draft/2020-12/schema","type":"object","properties":{"nextChunkIndex":{"type":"integer","minimum":1,"maximum":9007199254740991},"upload":{"type":"object","properties":{"url":{"type":"string","format":"uri"},"expiresAt":{"type":"string","format":"date-time","pattern":"^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$"},"headers":{"type":"object","propertyNames":{"type":"string"},"additionalProperties":{"type":"string"}}},"required":["url","expiresAt","headers"],"additionalProperties":false}},"required":["nextChunkIndex","upload"],"additionalProperties":false}

Examples

enhance-dev recording append-audio-chunk --recording-id <string> --index <number> --first-ms <number> --last-ms <number> --bytes <number>

Show example input

{
 "recordingId": "00000000-0000-4000-8000-000000000010",
 "index": 0,
 "firstMs": 0,
 "lastMs": 0,
 "bytes": 1
}

Show example output

{
 "nextChunkIndex": 1,
 "upload": {
  "url": "https://example.test/path",
  "expiresAt": "2026-08-10T00:00:00.000Z",
  "headers": {}
 }
}

Exit behaviour

Exit code	Meaning
`0`	The command succeeded.
`1`	The command failed for another reason (`INTERNAL`). A write may have an unknown outcome.
`2`	The command line was malformed. Nothing ran.
`3`	The API refused the input (`BAD_REQUEST`).
`4`	The credential is missing or expired (`UNAUTHORIZED`).
`5`	The API refused the request (`FORBIDDEN`, `NOT_FOUND`, `CONFLICT`, `RATE_LIMITED`).
`6`	A batch finished only in part. Retry with the same `--client-token`.

Versions

Minimum tested versions: Enhance CLI and MCP runtime 0.1.40, plugin 1.0.38, Node.js 24. No older floor is published.