list_domains

Status: GA Access: token required API contract: 0.3.0 · capability 2026-09-03.1 View as Markdown Open in Claude Open in ChatGPT

List the platform’s capability domains (name, prefix, summary, stage).

Access: read-only — safe to call repeatedly, changes nothing

Available at: /mcp/, /mcp/readonly/

Hints declared to MCP clients (ToolAnnotations)

Hint	Value
`readOnlyHint`	true
`destructiveHint`	false
`idempotentHint`	true
`openWorldHint`	false

Parameters

This tool takes no parameters.

Example call

Send inside an initialized MCP session (see Connecting). Every parameter is shown with a typed placeholder; drop the optional ones you do not need — but for defect/task tools the QA fields are what keeps a report out of quarantine.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "list_domains",
    "arguments": {}
  }
}

Returns

On the wire the list is wrapped: structuredContent is {"result": [...]} (MCP requires an object at the top level).

Field	Type	Description
`result`	`array of object`
`result[].name`	`string`	Domain key (matches the API module)
`result[].prefix`	`string`	REST path prefix of the domain
`result[].summary`	`string`	What the domain covers
`result[].stage`	`string`	Workflow stage the domain belongs to, or ‘cross’
`result[].agent`	`boolean`	True when a content-operating agent drives this domain

If it fails

Symptom	Cause	Action
`401`	Token missing/expired	Tokens are issued by the platform owner via `POST /api/v1/auth/agent-token` (superuser-only) — ask for a re-issue. ⚠️ A new token replaces your grant set
`403` / capability error	Your token lacks the capability or the contract grant	Check `my_capabilities` first; ask the owner for the grant