diff_versions

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

No annotations exist, so the description must cover behavioral traits. It states the tool shows changes (a read operation), but fails to disclose idempotency, permission requirements, or behavior when versions are missing. The minimal description leaves significant gaps.

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?

A single, concise sentence that front-loads the key action and resource with no extraneous words. Every word earns its place.

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?

The description is adequate given the output schema presumably documents return values, but it lacks nuance: it doesn't explain what 'entries' refers to, the format of changes, or validate version existence. With sibling tools, more contextual hints would help.

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 0% per context, though v1 and v2 have inline descriptions. The tool description adds no parameter details beyond what the schema already provides (e.g., dataset_path lacks description). With low schema coverage, the description should compensate but does not.

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 it shows entries added, removed, or changed between two versions, using a specific verb ('Show') and resource ('entries between committed versions'). This distinguishes it from siblings like list_entries (which lists all entries) and update_entry (which modifies).

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 implies the tool is for comparing versions but provides no explicit guidance on when to use it versus alternatives like list_entries or evaluate_answers. It lacks when-not-to-use or conditionals.

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