bag_health_mcp__get_data_version

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

Annotations declare readOnlyHint and destructiveHint, so safety profile is clear. The description adds beyond: return format (YYYYMMDD), weekly update cadence (Wednesdays), and that data is not real-time. No contradictions.

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 uses structured <use_case>, <important_notes>, and <example> tags for clarity. It is concise but covers purpose, usage, and a caveat. Minor improvement could remove redundancy, but overall effective.

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 version-check tool with no parameters and an output schema, the description fully explains what it returns, format, and update frequency. No gaps.

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 no meaningful parameters (only an empty 'params' object). With 0 parameters, baseline is 4. Description appropriately omits parameter details as none exist.

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 'Get the current data version of the BAG IDD', specifying a distinct resource (data version) and action. It differentiates from sibling tools which focus on diseases, series, or indicators.

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 <use_case> tag explicitly states when to use: 'Check how fresh the data is / which weekly snapshot you are looking at.' The <important_notes> tag provides a key constraint. No explicit alternatives or exclusions, but the context is clear.

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