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

Annotations already declare destructiveHint=true, idempotentHint=true and openWorldHint=true, so the safety profile is partly covered. The description still adds non-derivable context: the action is irreversible on LinkedIn, the other party is not notified, and user confirmation is required. It does not restate the idempotency/retry semantics, which the schema already carries.

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?

Three tight clauses with the core action first, the reversibility warning second, and the routing rule last. No filler and nothing an agent needs is buried.

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 values need no explanation, params are 100% schema-documented, and the description closes the two gaps an agent actually faces: safety/irreversibility and which sibling to use instead. Complete for this tool's complexity.

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 100%, so all three parameters (including the idempotency key) are already fully documented. The description adds no syntax or format hint beyond the schema, so the 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?

'Remove an existing 1st-degree connection' gives a precise verb + resource + scope, and the closing clause names the sibling it must not be confused with (withdraw_invitation for pending invitations). An agent can differentiate it from withdraw_invitation without opening either schema.

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?

States the exclusion explicitly ('Not for pending invitations, see withdraw_invitation') and adds a procedural precondition ('confirm with the user'). This is exactly the when/when-not/alternative routing an agent needs in a 50-tool namespace.

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