SnapAPI MCP Server

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

No annotations provided, so description carries full burden. It discloses return content ('requests used vs. limit, remaining quota, and monthly statistics') but omits auth requirements, rate limits, caching behavior, or whether this counts against quota itself.

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 sentences with zero waste: first establishes action and scope, second details specific return values. Front-loaded with the verb and appropriately sized.

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?

Adequate for a 0-parameter utility. Describes return values effectively (compensating for missing output schema), but lacks mention of authentication prerequisites or billing period calculation boundaries.

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?

Zero parameters present; baseline 4 per scoring rules. Schema is empty object with no properties requiring semantic elaboration.

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?

Specific verb 'Check' + resource 'SnapAPI account usage, quota, and plan details' + scope 'current billing period'. Clearly distinguishes from siblings (analyze, extract, screenshot, etc.) which are content/media processing tools rather than account metadata.

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 when-to-use guidance, prerequisites, or alternatives mentioned. While the purpose is distinct from siblings, the description provides no contextual guidance on when to query usage versus performing other operations.

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