dj_getHistoryStats

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 transparency. It only discloses the configuration prerequisite, but does not mention that the operation is read-only, what data is returned, or any side effects. This leaves the agent under-informed about 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, front-loaded sentence that clearly states the action and a prerequisite. It is highly concise with no wasted words, earning perfect marks for structure and brevity.

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 absence of an output schema and the presence of sibling analytics tools, this description is too sparse. It does not explain what 'performance statistics' includes, how it relates to dj_getSessionTracks or dj_getPlayCountAnalytics, or what the returned data looks like, leaving the agent without enough context for confident selection.

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 zero parameters, so the baseline is 4 per guidelines. The description adds a relevant prerequisite about 'rekordbox.db_path configured,' which is configuration-level context rather than parameter-level semantics, but does not contradict 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 the specific verb 'Get' and the resource 'DJ performance statistics,' making the action clear. However, it does not explicitly distinguish from sibling tools like dj_getPlayCountAnalytics or dj_getRecentSessions, leaving the precise scope of 'performance statistics' vague.

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 instead of the sibling DJ analytics tools. The only additional context, 'Requires rekordbox.db_path configured,' is a prerequisite, not usage guidance or alternative selection.

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