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Connect Guru to Hermes

Give Hermes governed access to Guru’s 6 tools through Runlayer, with identity, policy, scanning, and audit on every call.

Book a demo Hermes setup guide

Set up

Add Guru to Hermes in four steps

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

  1. 1

    Approve Guru in Runlayer

    Add Guru 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 Guru’s 6 tools through the Runlayer Plugin’s search and execute tools instead of listing each one.

    Hermes setup guide
  3. 3

    Sign in to Guru

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

  4. 4

    Use Guru from Hermes

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

Tools

6 Guru tools in Hermes

Runlayer policy decides which of these Hermes users can call. 4 read data only and 1 can change or delete data.

  • Ask knowledge agent

    Generate direct answers to questions using the knowledge base.

  • Create a draft of content

    Create a Draft of a Card in Guru.

  • Search documents

    Find and retrieve specific documents, sources or cards.

  • Update card content

    Update the content of an existing card.

  • List knowledge agents

    Get available knowledge agents and their IDs.

  • Get Card content by ID

    Get full card content in original HTML format by card ID

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 Guru 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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