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Melso Agents is available only internally or by private invitation. Agents-specific features require existing access. For the autónomo fiscal service, see Get started.
Add a message with new instructions to a Task. It starts a Run when the Task is idle, or queues behind the active Run. A Task without execution settings and no prior Run saves the message only; then use tasks_control start. It does not answer a pending question card: the card is cancelled as superseded. To answer it, use tasks_control answer. Availability: Autónomo / Empresa / Agents invitation. Catalog: Core (tools/list). The live catalog is authoritative: company type, membership, plan, connected apps and execution context can narrow this contract. Understand access.

Input

Agents / Autónomo / Company / Managed run / agents / Managed run / company / Managed run / freelancer schema

Output

A message receipt containing message_id and queued, plus run_id and attachment_ids when present. A saved message may have no Run ID. The result uses MCP content blocks; JSON payloads are encoded in text and may also appear in structuredContent. Check isError before reading a success payload. The server does not currently declare an outputSchema, so treat additional fields as extensible. Result handling.

Example

Use an OAuth access token issued for this MCP resource (a Run token for Run-only tools). Replace example identifiers with values from your own account. Write actions change data.