Umbra MCP Server
by RobertJLora
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| UMBRA_BROKER_MODE | No | Set to 'legacy' to give each session its own loopback listener instead of using the Rust broker. | broker |
| UMBRA_DOWNLOAD_DIR | No | Path to the browser's download folder, used to detect download completion when the downloads permission is not requested. | |
| UMBRA_KEEP_TABS_OPEN | No | Set to 1 to leave tabs open on clean server shutdown for inspection. | 0 |
| UMBRA_CLOSE_ON_SHUTDOWN | No | Set to 0 to leave tabs open on clean server shutdown (alternative to UMBRA_KEEP_TABS_OPEN=1). | 1 |
| UMBRA_ALLOW_EXTENSION_RELOAD | No | Set to 1 to advertise the browser_reload_extension tool. Only for unpacked developer installs; store installs refuse it. | false |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Server capabilities have not been inspected yet.
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
No tools | |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
This server cannot be deployed
Maintenance
ActivityMaintained
ResponsivenessNo issues