vibekit_file_changes

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It clearly communicates that the operation is read-only (a diff), scoped to 'recent' and 'uncommitted' changes, and tied to the app's workspace. While it does not specify diff format or exact recency window, the core behavior is transparent enough for a low-risk inspection tool.

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, front-loaded, compact sentence with no wasted words. It immediately identifies the action ('Get a diff') and includes the essential scoping qualifiers ('recent file changes', 'uncommitted changes') without 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?

For a simple one-parameter read-only diff tool, the description is sufficiently complete. It explains what the tool returns, the scope of data (recent and uncommitted), and the target workspace. The lack of an output schema is partially mitigated by the word 'diff', which implies the response format, and no nested objects or enums add 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?

The schema covers the single parameter appId with 100% description coverage ('App ID or subdomain slug'), so the description does not need to re-explain it. The description's mention of 'app's workspace' aligns with the parameter but adds no additional semantic detail beyond the schema.

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 uses a specific verb ('Get a diff') and identifies a clear resource ('recent file changes in an app's workspace'), further qualified as 'uncommitted changes'. This distinguishes it from sibling file tools like list_files or read_file, which focus on file contents or listings rather than modifications.

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 qualifier 'uncommitted changes' implies the tool is for reviewing pending modifications before committing or deploying, which provides contextual guidance. However, it does not explicitly state when to choose this tool over alternatives like list_files or read_file, nor does it mention exclusions or prerequisites.

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