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Connect dbt to Hermes

Give Hermes governed access to dbt’s 42 tools through Runlayer, with identity, policy, scanning, and audit on every call.

Book a demo Hermes setup guide

Set up

Add dbt to Hermes in four steps

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

  1. 1

    Approve dbt in Runlayer

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

  2. 2

    Connect Hermes to Runlayer

    Users add the Runlayer Plugin to Hermes by following Runlayer’s setup guide. Hermes reaches dbt’s 42 tools through the Runlayer Plugin’s search and execute tools instead of listing each one.

    Hermes setup guide
  3. 3

    Sign in to dbt

    Sign in the way dbt requires. Runlayer holds the credentials so they stay out of the client’s configuration.

  4. 4

    Use dbt from Hermes

    dbt’s approved tools appear in Hermes. Every call is checked against policy and recorded.

Tools

42 dbt tools in Hermes

Runlayer policy decides which of these Hermes users can call.

  • Cancel job run

    Cancel a currently running or queued dbt run.

  • Get all macros

    Get the name, description, and package name of all dbt macros in the environment.

  • Get all models

    Get the name and description of all dbt models in the environment.

  • Get all sources

    Get the name, description, and metadata of all dbt sources in the environment.

  • Get dimension values

    Get the distinct values for a given dimension, optionally scoped to specific metrics.

  • Get dimensions

    Get the dimensions for specified metrics

  • Get entities

    Get the entities for specified metrics

  • Get exposure details

    DEPRECATED — use get_node_details instead.

See all 42 dbt tools

Control

What Runlayer can see and stop in Hermes

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

  • Gateway policy (available)

    Every dbt call from Hermes passes through Runlayer, where your policies can allow, alert, mask, or block it.

  • Audit trail (available)

    Each call is recorded with the user, Hermes 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 Hermes runs it.

  • Block output after it runs (available)

    Runlayer can block a tool’s output in Hermes and show a message in its place.

  • Redact output in place (not available)

    Hermes cannot take masked output, so Runlayer can block a tool’s output but not mask it. The gateway still applies policy to the call.

In Hermes

  • Hermes can replace blocked tool output with a message, but its after-call event is for monitoring only.

Frequently asked questions

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