Bifrost MCP
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| BIFROST_MCP_SESSION_IDLE_TIMEOUT_SECONDS | No | Session idle timeout in seconds before automatic cleanup (default: 3600). Can also be set via --session-idle-timeout-seconds CLI option. | 3600 |
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
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": false
} |
| prompts | {
"listChanged": false
} |
| resources | {
"subscribe": false,
"listChanged": false
} |
| experimental | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| list_credentialsB | List non-secret stored credential metadata for one host. |
| create_ssh_sessionC | Open a new interactive SSH session using server-side stored credentials. |
| create_winrm_sessionC | Open a new WinRM session using server-side stored credentials. |
| send_inputC | Send raw text to an active SSH session. |
| send_controlB | Send a supported terminal control key to an active SSH session. |
| resize_sessionC | Resize the active SSH session pseudo-terminal. |
| read_outputA | Read buffered output from an active SSH session and optionally clear it. |
| wait_for_outputC | Wait for remote session output matching a regex or literal pattern. |
| run_commandA | Run a command in the existing session. SSH uses the interactive shell; WinRM expects PowerShell script text and runs it via pywinrm run_ps(). |
| check_sudo_cacheC | Check whether sudo cache is warm without prompting. |
| warm_sudo_cacheC | Warm sudo credentials using server-managed gopass sudo password. |
| clear_sudo_cacheC | Clear remote sudo timestamp cache with sudo -k. |
| upload_fileC | Upload an MCP-server-local file to the remote host over SFTP. |
| download_fileC | Download a remote file to an MCP-server-local path over SFTP. |
| list_sessionsA | List all active remote sessions managed by this MCP server. |
| close_ssh_sessionC | Close an active SSH session and remove it from server state. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 16 tools
Every tool targets a distinct action: session creation (SSH vs WinRM), session management, file transfer, sudo cache handling, and command execution. No two tools have overlapping purposes, making selection unambiguous for an agent.
All tool names follow a consistent verb_noun pattern in snake_case (e.g., create_ssh_session, warm_sudo_cache). The few exceptions like read_output still adhere to the pattern, ensuring predictability.
With 16 tools covering session lifecycle, file transfer, credential listing, and sudo cache management, the count is well-scoped for the server's domain. Each tool serves a clear purpose without redundancy or excessive granularity.
The tool set covers core workflows: create/close/list sessions, run commands, transfer files, and manage sudo cache. However, missing a close_winrm_session tool and lacking credential management beyond listing are minor gaps that agents may need to work around.