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

No annotations are provided, so the description carries the burden. It discloses the possible result statuses, but does not explicitly state whether the operation is read-only, mention authentication requirements, or describe the response format beyond the status list. The word 'Check' implies non-mutating behavior, but more explicit safety disclosure would be better.

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, focused sentence with an appended parenthetical list of possible values. There is no unnecessary information, and the key purpose is front-loaded.

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 simple single-parameter tool without an output schema, the description provides the core semantics and enumerates possible return values. It does not cover edge cases like invalid agent IDs, but this is acceptable given the tool's simplicity. Minor gap: no mention of whether the status check may return other fields.

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 covers the single parameter (targetAgentId) with a clear description ('UUID of the agent to check connection status with'). The description adds minimal value beyond the schema, so a baseline score of 3 is appropriate given 100% schema coverage.

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 uses a specific verb ('Check') and clearly identifies the resource: connection status with another agent. It also lists the possible return values (none, pending_sent, pending_received, connected), which distinguishes it from sibling tools like agentlux_social_connections or agentlux_social_pending_connections by focusing on status with a specific target.

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 description clearly implies the use case: checking connection status with a specific agent. However, it does not explicitly name alternatives or state when not to use this tool, so it lacks the explicit differentiation that would earn a 5.

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