Suzu (鈴) - Claude Code Notification Server

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations provided, the description carries full burden but offers minimal behavioral insight. It states the tool 'refreshes' a token, implying a write operation, but doesn't disclose side effects (e.g., invalidating old tokens), authentication needs, rate limits, or error handling. This leaves significant gaps for a mutation tool.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, efficient sentence that front-loads the core action ('refresh') and key details ('manually', 'configured refresh endpoint'). There is no wasted text, making it highly concise and well-structured for quick understanding.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a tool that performs a mutation (token refresh) with no annotations and no output schema, the description is inadequate. It lacks details on success/failure outcomes, token lifecycle implications, or integration with other tools, leaving the agent with insufficient context to use it effectively.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 0 parameters with 100% coverage, so no parameter documentation is needed. The description appropriately avoids redundant parameter details, earning a baseline score of 4 for not adding unnecessary information beyond the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action ('refresh') and the resource ('Spotify access token'), specifying it's done 'manually' using the 'configured refresh endpoint'. However, it doesn't differentiate from sibling tools like 'configure_spotify_tokens', which might handle initial token setup rather than refresh operations.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

No explicit guidance is provided on when to use this tool versus alternatives. The description mentions 'configured refresh endpoint' but doesn't specify triggers (e.g., token expiration), prerequisites, or comparisons to other tools like 'configure_spotify_tokens' or 'show_config' for token status.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.