setup_cellartracker

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

No annotations provided, so description carries full burden. Discloses that credentials are saved to a specific file (~/.saq-mcp/cellartracker.json) and scope of use (only by watcher daemon). Does not detail overwrite behavior or immediate validation, but adequate for this simple 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?

Two efficient sentences: first explains purpose and effect, second adds file location and usage constraint. No wasted words.

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?

Given the simplicity (2 required params, no output schema, no nested objects), the description is complete. It explains the 'why' and 'where'. Could include validation or error handling, but not necessary for basic use.

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?

Schema describes username and password with descriptions, and coverage is 100%. Description adds context ('CellarTracker credentials') but does not add meaning beyond what the schema provided. Baseline score of 3 is appropriate.

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?

Clearly states the verb 'Configure' and resource 'CellarTracker credentials', and explains the purpose (daily email includes community scores and average prices). Distinct from siblings which are search/check tools, making this a unique configuration tool.

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?

Describes the effect (email enrichment) and the side effect (credentials saved to a file, used only by watcher daemon). Implies it's a setup step, but does not explicitly state when not to use or mention alternatives.

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