# moments_mutate

Canonical HTML page: https://bitterclip.com/docs/assistants/tools/moments_mutate

Surface: app-only

Product release: 1dce717408a55fac1047e7d779177fa3ef8ede51
Public contract commit: 1ce47f7857ae3d9b6933fe83d5c33de3ae5efc64
Public contract SHA-256: 241d47d25e4b4c1dae9d2263793874d06fc4ba7bc3c78d4cf2bc63fbb32ed7dc
Descriptor SHA-256: 885d46f3ca3939dec2ace0cd6e93611c8b3f741f2d8f7a82e0adfe1452cc9a9e
Captured: 2026-09-24T16:39:30.100Z
Source: https://app.bitterclip.com/api/v1/mcp_descriptors.json

One moment change per call: create, update_label, adjust_range, or set_state. create saves a moment on the recording from an explicit time range or transcript unit IDs (transcript editor save). update_label renames a saved moment and optionally updates its description. adjust_range changes a moment's start/end seconds (selected-moment trim). set_state saves or dismisses a suggested moment, optionally applying reviewed title and description atomically; discarded moments remain recoverable. recording_id scopes the moment lane (a bare id resolves as a recording); pass a caller-stable idempotency key with every action. The moments lane has no structural revision today — expected_revision is carried optionally so the lane converges on the standard mutation contract when revisions land.

The JSON blocks below are the exact MCP descriptor projections served by Rails for the named profiles at capture time. Security schemes and resource URIs may vary by connected host.

## App descriptor

```json
{
  "name": "moments_mutate",
  "title": "Change a saved moment",
  "description": "One moment change per call: create, update_label, adjust_range, or set_state. create saves a moment on the recording from an explicit time range or transcript unit IDs (transcript editor save). update_label renames a saved moment and optionally updates its description. adjust_range changes a moment's start/end seconds (selected-moment trim). set_state saves or dismisses a suggested moment, optionally applying reviewed title and description atomically; discarded moments remain recoverable. recording_id scopes the moment lane (a bare id resolves as a recording); pass a caller-stable idempotency key with every action. The moments lane has no structural revision today — expected_revision is carried optionally so the lane converges on the standard mutation contract when revisions land.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "recording_id": {
        "type": "string",
        "description": "Recording public ID that owns this moment lane. create requires it; moment-scoped actions carry it as scope."
      },
      "expected_revision": {
        "type": "integer",
        "description": "Optional: carried toward the standard mutation contract. The moments lane exposes no structural revision yet; omit until it does."
      },
      "idempotency_key": {
        "type": "string",
        "description": "Caller-stable retry key for this exact change."
      },
      "action": {
        "type": "object",
        "description": "One moment action. Use the canonical field names in the matching action shape.",
        "oneOf": [
          {
            "type": "object",
            "properties": {
              "type": {
                "type": "string",
                "enum": [
                  "create"
                ]
              },
              "title": {
                "type": "string"
              },
              "description": {
                "type": "string"
              },
              "from_unit_id": {
                "type": "string"
              },
              "to_unit_id": {
                "type": "string"
              },
              "start_seconds": {
                "type": "number"
              },
              "end_seconds": {
                "type": "number"
              },
              "unit_ids": {
                "type": "array",
                "items": {
                  "type": "string"
                }
              }
            },
            "required": [
              "type",
              "title"
            ],
            "additionalProperties": false
          },
          {
            "type": "object",
            "properties": {
              "type": {
                "type": "string",
                "enum": [
                  "update_label"
                ]
              },
              "moment_id": {
                "type": "string",
                "description": "Saved moment public ID."
              },
              "label": {
                "type": "string"
              },
              "description": {
                "type": "string",
                "description": "Optional moment description; persisted as the moment's rationale (the clip's description)."
              }
            },
            "required": [
              "type",
              "moment_id",
              "label"
            ],
            "additionalProperties": false
          },
          {
            "type": "object",
            "properties": {
              "type": {
                "type": "string",
                "enum": [
                  "adjust_range"
                ]
              },
              "moment_id": {
                "type": "string",
                "description": "Saved moment public ID."
              },
              "start_seconds": {
                "type": "number"
              },
              "end_seconds": {
                "type": "number"
              }
            },
            "required": [
              "type",
              "moment_id",
              "start_seconds",
              "end_seconds"
            ],
            "additionalProperties": false
          },
          {
            "type": "object",
            "properties": {
              "type": {
                "type": "string",
                "enum": [
                  "set_state"
                ]
              },
              "moment_id": {
                "type": "string",
                "description": "Saved moment public ID."
              },
              "state": {
                "type": "string",
                "enum": [
                  "saved",
                  "discarded",
                  "suggested"
                ],
                "description": "Target state. saved=keep, discarded=hide (recoverable)."
              },
              "label": {
                "type": "string",
                "description": "Optional reviewed title, applied atomically when state is saved."
              },
              "description": {
                "type": "string",
                "description": "Optional reviewed description, applied atomically when state is saved."
              }
            },
            "required": [
              "type",
              "moment_id",
              "state"
            ],
            "additionalProperties": false
          }
        ]
      }
    },
    "required": [
      "recording_id",
      "idempotency_key",
      "action"
    ],
    "additionalProperties": false
  },
  "annotations": {
    "readOnlyHint": false,
    "destructiveHint": false,
    "idempotentHint": true,
    "openWorldHint": false
  },
  "securitySchemes": [
    {
      "type": "noauth"
    }
  ],
  "_meta": {
    "securitySchemes": [
      {
        "type": "noauth"
      }
    ],
    "ui": {
      "visibility": [
        "app"
      ]
    },
    "openai/widgetAccessible": true,
    "openai/visibility": "private"
  },
  "outputSchema": {
    "type": "object",
    "properties": {
      "moment": {
        "type": "object"
      },
      "moment_id": {
        "type": "string"
      }
    },
    "required": [],
    "additionalProperties": false
  }
}
```

## Errors

```json
[
  "moment_not_found",
  "recording_not_found",
  "invalid_input"
]
```

## Examples

```json
[]
```