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Connect Snowflake to Gemini CLI

Give Gemini CLI governed access to Snowflake’s 8 tools through Runlayer, with identity, policy, scanning, and audit on every call.

Set up

Add Snowflake to Gemini CLI in four steps

Admins approve the server once. Everyone in Gemini CLI then gets it through the same governed connection.

  1. 1

    Approve Snowflake in Runlayer

    Add Snowflake from the catalog and choose who can use it and which of its tools are allowed.

  2. 2

    Connect Gemini CLI to Runlayer

    Users add the Runlayer Plugin to Gemini CLI by following Runlayer’s setup guide. Gemini CLI reaches Snowflake’s 8 tools through the Runlayer Plugin’s search and execute tools instead of listing each one.

    Gemini CLI setup guide
  3. 3

    Sign in to Snowflake

    Each user signs in to Snowflake with OAuth. Runlayer keeps the tokens out of the client’s configuration.

  4. 4

    Use Snowflake from Gemini CLI

    Snowflake’s approved tools appear in Gemini CLI. Every call is checked against policy and recorded.

Tools

8 Snowflake tools in Gemini CLI

Runlayer policy decides which of these Gemini CLI users can call.

  • Describe semantic view

    Describe a semantic view.

  • Get semantic view ddl

    Get the DDL for a semantic view.

  • List semantic views

    List all semantic views in the account, database, or schema.

  • Query semantic view

    Writes and runs a statement to query a semantic view using DIMENSIONS, METRICS, and/or FACTS.

  • Run Snowflake query

    Run a SQL query in Snowflake.

  • Show semantic dimensions

    Show all semantic dimensions in the account, database, or schema.

  • Show semantic metrics

    Show all semantic metrics in the account, database, or schema.

  • Write semantic view query tool

    Writes a query statement to query a semantic view using DIMENSIONS, METRICS, and/or FACTS.

Control

What Runlayer can see and stop in Gemini CLI

Some controls apply to every client at the gateway. Others depend on what Gemini CLI exposes to Runlayer.

  • Gateway policy (available)

    Every Snowflake call from Gemini CLI passes through Runlayer, where your policies can allow, alert, mask, or block it.

  • Audit trail (available)

    Each call is recorded with the user, Gemini CLI as the client, the tool, and the policy and scanner decisions.

  • Client hooks (available)

    Capture supported prompts, reasoning, local and MCP tool calls, responses, and scanner decisions in real time.

  • Stop a call before it runs (available)

    Runlayer can deny a tool call before Gemini CLI runs it.

  • Block output after it runs (available)

    Runlayer can block a tool’s output before Gemini CLI’s model sees it.

  • Redact output in place (not available)

    Gemini CLI can only add text to a tool result, not replace it, so Runlayer blocks output it would otherwise mask. The gateway still applies policy to the call.

In Gemini CLI

  • Enforcement needs Gemini CLI 0.26.0 or newer.
  • When Runlayer blocks a call or its output, Gemini CLI shows the model the block reason instead.

Frequently asked questions

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