Create chat completion

The MCP server is in public beta. It is open to use and still being refined, so tools and behavior may change.

Tool ask_gcai · Behavior Open world

Ask GC AI a legal question or give it a task. Optionally ground it in uploaded files (file_ids), playbooks (playbook_ids), or skills (skill_ids). Returns a job envelope, not a final answer: while status is pending or running, keep polling ask_gcai_status with the returned job_id until status is succeeded (then result holds the answer). Pass chat_id to continue a prior conversation, sending only the new message (conversation state is kept server-side).

Input parameters

string

required

The user’s message or prompt

string (uuid)[]

Optional uploaded file IDs to attach as context for this completion. Upload files first via POST /files.

string (uuid)[]

Optional playbook IDs to ground the completion in (up to 20). The model uses each playbook’s checks and guidance to structure its review of the attached files. Discover playbooks via GET /playbooks.Org-scoped keys can use org-visible and official playbooks.

string

Deprecated and no longer accepted. Use playbook_ids (an array) instead. Requests that include this field are rejected with a 400 so the playbook is never silently dropped.

string (uuid)[]

Optional skill IDs to run on the first turn. Each skill’s instructions are injected as context for this completion. Discover skills via GET /skills.Only valid when starting a new chat; omit them when continuing with chat_id.

string (uuid)

Optional chat ID to continue an existing conversation, from the chat_id of a prior completion. Omit to start a new chat.Conversation state is held server-side, so send only your new message (plus any new file_ids); do not re-send prior turns or previously returned documents/emails/diagrams. Only one turn may be in flight per chat at a time. See Multi-turn Conversations.

string (uuid)

Optional project to file the chat into, so it is browsable under GET /projects/{id}/chats. Requires write access to the project. The chat becomes visible in the project once you materialize it. Discover projects via GET /projects.

string (uuid)

Optional company profile to ground the completion in, so the model has that company’s context (industry, jurisdiction, regulations, risk posture). Discover company profiles via GET /company-profiles.The company is fixed for the life of a chat. On a new chat, supply this to target a specific company (the only way to ground against a particular one in a multi-company organization); when omitted, a company is auto-resolved: user-scoped keys use the caller’s active (default) company, and org-scoped keys use the organization’s sole company, or none when there are several.When continuing a chat with chat_id, omit this to reuse the chat’s company. You may echo the same company_id, but a different one is rejected with 409 (start a new chat to use a different company).

Response

string

Job identifier. Pass it to the matching *_status tool to poll.

'pending' | 'running' | 'succeeded' | 'failed' | 'canceled'

succeeded means result is populated; running/pending means poll again; failed/canceled are terminal.

object | null

Typed result when status is succeeded; null until then.

Show properties

string

The AI-generated response text

string (uuid)

The chat ID. API chats stay out of chat history until you materialize them. Pass this ID to POST /chat/{id}/materialize to surface the chat. See Chat Visibility.

object[]

Documents produced during this completion: either edits of an attached file (the document editing tool) or newly generated files (the document or slide generation tools). Present only when at least one document was produced. Each entry exposes a new file_id and a signed download URL; edits also reference the preserved original via original_file_id.

Show properties

string (uuid)

The new uploaded file ID for the produced document. Use it with POST /chat/completions file_ids to apply further edits to this version. Download via signed_url for the finished file.

string (uuid)

The file_id the changes were applied to (edits only). The original file is preserved unchanged. Omitted for newly generated documents.

string

Filename of the produced document (edits are prefixed with edited_).

string

Filename of the source file the changes were applied to (edits only). Omitted for newly generated documents.

string (uri)

Time-limited direct download URL (no login required). Valid for 7 days from job completion. Download promptly; the URL is not re-minted, so re-fetching the job after expiry returns the same expired URL. For a link you intend to store or email, use download_url instead.

string (uri)

Permanent, login-gated download link for the produced document. Unlike signed_url it never expires: it points at a GC AI web page that mints a fresh download for a signed-in user with access to the file, and redirects to GC AI login otherwise. Use this for links you store or email. The produced document inherits the source document’s access, so it opens for whoever can already see the source: a document uploaded to the organization is org-visible, one in a project is visible to that project’s members, and one in personal files stays private to the uploader. Recipients still need a GC AI login.

object[]

Email drafts produced during this completion by the email drafting tool. Present only when at least one email was drafted. Each entry is a structured draft (to, subject, body, …) ready to send via your own mail client or provider.

Show properties

string

Recipient email address(es), comma-separated. May be an empty string when the prompt named no recipient; fill it in before sending.

string

CC recipient email address(es), comma-separated.

string

BCC recipient email address(es), comma-separated.

string

Email subject line. Always present, inferred from context when the prompt did not specify one.

string

Email body in markdown.

string

Email body with markdown stripped, for plain-text clients.

object[]

Diagrams produced during this completion by the diagram tool. Present only when at least one diagram was produced. Each entry exposes validated Mermaid source (mermaid) you can render with any Mermaid-compatible renderer.

Show properties

string

A short descriptive title for the diagram.

string

The semantic type of diagram, e.g. orgChart, dealStructure, workflow, timeline, sequence, entityRelationship, or general.

string

The diagram source as validated Mermaid syntax. Render it with any Mermaid-compatible renderer.

string

The exact tool to call to poll this job. Call it yourself with job_id; do not ask the user to poll.

number | null

While status is pending/running, wait this many seconds, then call status_tool with job_id. null once the job is terminal.

string

Plain-language next step. Follow it before responding.

REST

MCP

CLI

Create chat completion

Input parameters

Response

​Input parameters

​Response

Input parameters

Response