fugu-mcp
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| FUGU_BASE_URL | No | OpenAI-compatible base URL. Requests go to <base>/chat/completions. | https://api.sakana.ai/v1 |
| SAKANA_API_KEY | No | Sent as Authorization: Bearer <key>. Optional at startup; required when calling tools. | |
| FUGU_TIMEOUT_MS | No | Per-request timeout in milliseconds. Orchestrators are slow; the default is generous. | 120000 |
| FUGU_DEFAULT_MODEL | No | Model used when a tool call omits model. | fugu-ultra |
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": true
} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| ask_fuguA | Ask Sakana Fugu (a separate orchestration LLM) for a second opinion on a HARD, SELF-CONTAINED problem, or to cross-check your own reasoning with a different model. Good for: a tricky algorithm/proof, a thorny design trade-off, a 'is my approach sound?' gut-check, or a multi-model panel on a discrete question. The prompt MUST contain all needed context — Fugu cannot see the repo, files, or this conversation. Do NOT use it for interactive or iterative repo work, multi-step edits, running commands, or anything that needs to read/modify local files — do that yourself. Calls can be slow (tens of seconds). |
| fugu_second_opinionA | Get a rigorous SECOND OPINION from Sakana Fugu (a separate LLM) on a discrete piece of work. Provide the |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |