Connect Lucid to Hermes
Give Hermes governed access to Lucid’s 42 tools through Runlayer, with identity, policy, scanning, and audit on every call.
Set up
Add Lucid to Hermes in four steps
Admins approve the server once. Everyone in Hermes then gets it through the same governed connection.
- 1
Approve Lucid in Runlayer
Add Lucid from the catalog and choose who can use it and which of its tools are allowed.
- 2
Connect Hermes to Runlayer
Users add the Runlayer Plugin to Hermes by following Runlayer’s setup guide. Hermes reaches Lucid’s 42 tools through the Runlayer Plugin’s search and execute tools instead of listing each one.
Hermes setup guide - 3
Sign in to Lucid
Sign in the way Lucid requires. Runlayer holds the credentials so they stay out of the client’s configuration.
- 4
Use Lucid from Hermes
Lucid’s approved tools appear in Hermes. Every call is checked against policy and recorded.
Tools
42 Lucid tools in Hermes
Runlayer policy decides which of these Hermes users can call. 2 read data only.
Create embed
Internal tool for MCP Apps extension only.
Create embed session token
Internal tool for MCP Apps extension only.
Exchange legacy embed session
Internal tool for MCP Apps extension only.
Fetch Lucid document content
Retrieves the structured content of a specific Lucid document by its ID.
Get MCP resource
Reads a resource from this MCP server by URI.
List document thread comments
List comments on a specific collaboration thread of a Lucid document.
List document threads
List collaboration threads on a Lucid document.
Add block
Add a new block (shape) to a Lucid document.
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 Lucid 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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