Connect Sigma to ChatGPT
Give ChatGPT governed access to Sigma’s 7 tools through Runlayer, with identity, policy, scanning, and audit on every call.
Set up
Add Sigma to ChatGPT in four steps
Admins approve the server once. Everyone in ChatGPT then gets it through the same governed connection.
- 1
Add Sigma to Runlayer
Sigma isn’t in the Runlayer catalog yet, so an admin adds it by its MCP server URL.
Adding a connector manually - 2
Connect ChatGPT to Runlayer
Admins publish the Runlayer Plugin and its skill to the whole ChatGPT organization. With direct tool listing turned on for your deployment, Sigma’s 7 tools show up in ChatGPT’s own tool list.
ChatGPT setup guide - 3
Sign in to Sigma
Sign in the way Sigma requires. Runlayer holds the credentials so they stay out of the client’s configuration.
- 4
Use Sigma from ChatGPT
Sigma’s approved tools appear in ChatGPT. Every call is checked against policy and recorded.
Tools
7 Sigma tools in ChatGPT
Runlayer policy decides which of these ChatGPT users can call.
Begin session
REQUIRED — You MUST call this tool before using any other Sigma tool in a conversation.
Call agent
Call a Sigma workbook agent with a message or conversation.
Describe
Inspect the schema of a Sigma data source.
List documents
Browse a named document collection in the Sigma workspace.
List workbook agents
List the workbook agents you can edit across your organization
Query
Execute a SQL query against a Sigma data source and return the results.
Search
Search across the entire Sigma workspace to discover workbooks, data models, data model elements, and tables.
Control
What Runlayer can see and stop in ChatGPT
Some controls apply to every client at the gateway. Others depend on what ChatGPT exposes to Runlayer.
Gateway policy (available)
Every Sigma call from ChatGPT passes through Runlayer, where your policies can allow, alert, mask, or block it.
Audit trail (available)
Each call is recorded with the user, ChatGPT as the client, the tool, and the policy and scanner decisions.
Compliance API import (available)
OpenAI Compliance Logs Platform imports ChatGPT web chats for review.
Managed browser extension (available)
Managed Chrome, Edge, and Firefox deployments can monitor supported web-chat activity and apply prompt-time controls where the surface permits it.
Native enforcement adapter (not available)
Runlayer has no device-side adapter for ChatGPT yet, so control happens at the gateway.
Frequently asked questions
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