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

Annotations are all default/false and convey no safety profile, so the description carries the burden and does well: it discloses non-mutation (不会保存、修改或删除), the retention/window limit, and an important privacy caveat (feedback is the user's own experience, not facts about the other party, nor contact authorization). It omits rate limits and error behavior, hence not a 5.

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?

A single front-loaded paragraph whose clauses each do work: default mode, filtered mode, privacy framing, non-mutation note. Slightly dense with the privacy caveat, but no filler or repetition.

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?

An output schema exists, so return formatting needn't be documented. For a 2-optional-parameter getter the description covers both invocation modes, parameter meaning, scope limits, and data-sensitivity context — complete enough to call the tool correctly.

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 description coverage is 0%, so the description must compensate. It explains that sourceKind maps to a personal conversation or gathering (matching the enum) and pairs with sourceId to view a specific item, and that both refer to the caller's own data — adding the joint-usage relationship and ownership constraint the schema lacks.

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 (读取/read) and resource (连接反馈/connection feedback), plus concrete scope (last 90 days, max 12) and a second access mode by sourceKind+sourceId. It never names a sibling alternative, but the resource is unique among the fitmeet_* list/get/confirm tools.

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?

Explicitly tells the agent when each mode applies: no parameters yields recent personal feedback; sourceKind+sourceId yields feedback for a specific session or gathering. It gives clear context but no exclusions or named alternatives for overlapping use cases.

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