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Connect Spacelift to Hermes

Give Hermes governed access to Spacelift’s 7 tools through Runlayer, with identity, policy, scanning, and audit on every call.

Set up

Add Spacelift to Hermes in four steps

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

  1. 1

    Add Spacelift to Runlayer

    Spacelift isn’t in the Runlayer catalog yet, so an admin adds it by its MCP server URL.

    Adding a connector manually
  2. 2

    Connect Hermes to Runlayer

    Users add the Runlayer Plugin to Hermes by following Runlayer’s setup guide. Hermes reaches Spacelift’s 7 tools through the Runlayer Plugin’s search and execute tools instead of listing each one.

    Hermes setup guide
  3. 3

    Sign in to Spacelift

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

  4. 4

    Use Spacelift from Hermes

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

Tools

7 Spacelift tools in Hermes

Runlayer policy decides which of these Hermes users can call.

  • Discover

    Browse the Spacelift API schema.

  • Intent

    Manage infrastructure resources through their lifecycle.

  • Mutate

    Execute a Spacelift mutation.

  • Policy input schema

    Return a policy type's input structure, expected rule outputs and description.

  • Policy simulate

    Evaluate a draft policy body and return the decision.

  • Provider

    Discover infrastructure providers and inspect their resource/data source schemas.

  • Query

    Execute a read-only Spacelift query.

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 Spacelift 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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