get_system_status

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

No annotations are provided, so the description carries the burden. It discloses the type of information returned (version, data stats, cache status) and states output is JSON, which is helpful. However, it does not mention potential latency, whether it requires any setup, or any side effects. Given it's a read-only status tool, the description is adequate but not rich.

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 concise and front-loads the primary purpose. It is bilingual (Chinese and English), which is slightly redundant but not harmful. The Returns section is briefly noted. No unnecessary fluff, though the Chinese-English duplication adds minor verbosity.

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 tool's simplicity (no parameters) and the existence of an output schema, the description is reasonably complete. It identifies main fields and format. However, it could clarify what 'system status' encompasses (e.g., does it include storage or RSS feed health?) to avoid overlap with sibling tools. The output schema might cover return structure, but the description does not mention any prerequisites or caveats.

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 tool has zero parameters, so there is no parameter documentation to compensate for. The description explicitly mentions the return content (version, stats, cache) and format, which helps set expectations. Since there are no parameters to explain, a baseline of 4 is appropriate for adding value in describing the output.

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 states the tool reports system status and health check info, including version, data stats, and cache state. This is a clear purpose, but it does not explicitly distinguish from siblings like get_storage_status or get_rss_feeds_status, which could also be status-related. The verb 'get' is specific to status, but differentiation is missing.

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?

There is no guidance on when to use this tool versus alternatives like get_storage_status or get_rss_feeds_status. The description simply says it returns system status, but doesn't clarify scope (e.g., overall system vs. specific subsystems) or when to prefer it. This leaves the agent to guess.

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