Ping

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

No annotations are provided, so the description must carry the burden. It makes clear this is a non-mutating liveness probe and discloses the return payload ('pong'), which is exactly what an agent needs to know for a health check. Minor gap: it does not say how the optional message parameter changes the response.

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 short sentences, purpose first and return value second, with zero filler. Nothing could be removed without losing information.

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 zero-required-parameter health check with no output schema and full schema coverage, the description covers everything needed to invoke it correctly. The only missing piece is a pointer to the sibling get_status for semantically adjacent checks.

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 coverage is 100% and the single optional 'message' parameter is fully documented as text to echo back in the schema. The description adds nothing about it and arguably implies a fixed 'pong' reply, so it neither compensates nor contradicts; baseline 3 applies.

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?

States a specific verb and resource: check that the figma-flow MCP server is running, and what it returns. It is clear in isolation, but does not distinguish itself from the sibling get_status, which plausibly answers a similar liveness question.

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?

The liveness-check intent implies when to use it (before other calls, after connection issues), but there is no explicit guidance on when to prefer this over get_status or what to do with either result. Usage is inferred rather than stated.

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