> ## Documentation Index
> Fetch the complete documentation index at: https://platform.atlan.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Start a work session

> Group related MCP calls under one reviewable session.

# `registry__initialise`

Start a work session before calling other Registry tools. The session record
lets a reviewer read related calls as one piece of work.

* Inputs: optional `objective`, `client`, `client_version`, and
  `protocol_version`. These fields are recorded as supplied and do not affect
  authorization.
* Returns: an `mcp_session_id` and the created session record.
* Effect: writes an `mcp_session` artifact in the account's shared root.

Pass the returned `mcp_session_id` on later tool calls. The field is optional,
so a failed or unavailable initialisation does not block other tools.