Link Tracker entities

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

Annotations already declare this is a non-read-only, non-destructive, non-idempotent, open-world mutation, so the safety profile is covered. The description adds one useful behavioral fact (returns an acknowledgement on success), but says nothing about permissions, duplicate links, or error conditions.

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 compact, front-loaded sentences with zero filler; the core action leads and the return behavior is a brief trailing note.

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 mutation tool with full annotation coverage, a complete input schema, and no output schema, this is minimally adequate: it states the action and that an acknowledgement is returned. It is missing guidance on which link tool to choose and how to handle duplicate or invalid link types.

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 the schema fully documents entity_type, entity_id, and the nested body. The description only echoes the relationship examples already given in the schema, adding no syntax or format detail beyond it, 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?

States a specific verb (Link) and resource (a Tracker entity to another entity), and gives relationship-type examples. It does not differentiate itself from the confusingly similar sibling tracker_links_add, so the agent cannot tell which link tool to pick from the description alone.

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 states only what the tool does, with no when-to-use guidance, no prerequisites, and no mention of alternatives such as tracker_links_add or the create-vs-list/delete link siblings. Usage is only weakly implied by the purpose sentence.

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