data_coremgr_opdata_count

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

With no annotations, the description carries the full burden of behavioral disclosure. It adds a meaningful access-scoping trait ('Normal users see only their own logs') that is not obvious from the schema. However, it does not disclose the return format, whether the count can be zero, or how the time filters interact with the result, leaving some behavioral 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?

The description is two short sentences with no filler. The purpose is front-loaded in the first sentence, and the scoping behavior is added in the second. Every sentence earns its place without redundantly restating the tool name or the schema.

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 count operation with three optional parameters and a fully documented schema, the description is largely sufficient. It explains the resource and the visibility rule. The only notable gap is the absence of an output schema or explicit return-shape statement, but 'Get the count' makes the primary outcome clear.

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 already describes all three parameters with 100% coverage, including the requirement that tfield must be provided when tstart/tend are used. The tool description adds no parameter-specific meaning beyond what the schema provides. A baseline of 3 is appropriate when schema documentation is complete.

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 opens with a specific verb and resource: 'Get the count of coremgr operation log records.' This clearly identifies what the tool does and distinguishes it from the sibling data_coremgr_opdata_list, which retrieves the actual records rather than a count. The count-vs-list difference is immediately evident without needing the schema.

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?

No guidance is given about when to use this tool over alternatives. It does not reference data_coremgr_opdata_list or other count variants, nor does it state conditions such as 'use this when only a total is needed.' The note 'Normal users see only their own logs' is a scoping behavior, not an explicit usage directive or exclusion.

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