add_gear_to_activity

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It only states the high-level association action and does not reveal potential side effects, whether existing gear associations are replaced or appended, error behavior for invalid IDs, or any authorization requirements.

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 compact and well-organized, with a clear one-line summary followed by a focused Args section. Every sentence contributes value, and the parameter documentation is front-loaded and easy for an agent to parse quickly.

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 two-parameter tool with an output schema present, the description covers the basics of what the tool does and what the parameters mean. However, it omits important behavioral context such as whether the operation is idempotent, what happens if gear is already associated, and whether the activity must exist, making it adequate but not fully complete.

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 has 0% description coverage, so the description must compensate, and it largely does. The Args block provides semantic meaning for both parameters: activity_id is 'ID of the activity' and gear_uuid is 'UUID of the gear to add (get from get_gear)', adding useful sourcing context beyond the raw schema types.

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 clearly states a specific verb and resource: 'Associate gear with an activity' and 'Links a specific piece of gear to an activity.' It distinguishes the action from unrelated siblings by defining exactly what is being linked, though it does not explicitly contrast itself with remove_gear_from_activity or get_activity_gear.

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 only usage guidance is the hint that the gear UUID should be obtained from get_gear, which is a helpful prerequisite but not a tool-selection guideline. It does not explain when to choose this tool over remove_gear_from_activity or other gear-related tools, nor does it provide any exclusions or alternative conditions.

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