ui_collapse

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

The description adds behavioral context beyond the minimal annotations: it specifies the use of ExpandCollapsePattern, the safety of collapsing already-collapsed elements, and the return object structure. This is helpful for an agent.

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 concise: three sentences that cover purpose, key behavioral detail, and parameter. Every sentence adds value with no redundancy.

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?

Given the tool's simplicity (one required parameter, no output schema, no nested objects), the description is fully complete. It covers the core functionality, safe usage, parameter definition, and return value shape.

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 description explains the single parameter 'automation_id' as 'AutomationId of the element to collapse', adding meaning beyond the schema which only defines its type. With 0% schema description coverage, this compensation is adequate.

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 the tool collapses TreeView nodes, ComboBox dropdowns, or other collapsible elements. It uses a specific verb and resource, and distinguishes itself from sibling tools like ui_expand.

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?

It mentions that collapsing an already-collapsed element is safe, which is a useful guideline. However, it does not explicitly compare with alternatives like ui_expand or ui_toggle, nor does it state when not to use this tool.

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