folder_open

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

No annotations are provided, so the description must fully disclose behavioral traits. It only says 'opens a folder' without detailing effects, such as whether it changes UI state, requires existing paths, or has side effects. This is insufficient for an agent to understand the tool's behavior.

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 sentence with no fluff, making it concise. However, it may be too brief given the complexity of the tool's effect, but for a simple action, it earns a high score.

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 lack of annotations, no output schema, and the presence of many sibling tools, the description is insufficiently complete. It does not explain what 'opening' entails, whether it requires the folder to exist, or how it affects subsequent tool calls. The description should provide more context for safe and correct use.

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 schema already provides full coverage for the single required parameter 'path' with a description. The tool description adds no additional meaning beyond the schema, which is adequate. However, it does not compensate for missing context like path format or validation rules.

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 action ('opens a folder') and the target ('in the sidebar'), which is a specific verb+resource combination. It distinguishes from sibling tools like folder_list_files or document_open, which have different purposes.

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 provides no guidance on when to use this tool versus alternatives. There is no mention of use cases, prerequisites, or exclusions. For instance, it doesn't differentiate from folder_list_files which also deals with folders but lists contents rather than opening.

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