Samsung Health Data Inventory

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

Annotations already declare readOnlyHint, openWorldHint, idempotentHint, and destructiveHint, providing strong safety and idempotency guarantees. The description adds that it scans once and reports various aspects, but does not significantly extend beyond the annotations. No contradiction.

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?

Description is a single sentence of 18 words, front-loaded with the verb 'Scan' and the resource 'local Samsung Health export.' Every word is necessary, and there is no redundancy or filler. Excellent conciseness.

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 tool has 5 parameters (2 with enums) and no output schema. The description fails to explain the output structure, parameter usage, or how the various reported items are presented. It omits important details like what 'freshness' means or how 'safe next calls' are determined, leaving the agent with an incomplete understanding of the tool's behavior and results.

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?

Description does not mention any of the 5 parameters (start, end, timezone, privacy_mode, response_format). Schema description coverage is 60%, meaning some parameters are documented in the schema, but the description adds no additional meaning or usage context for the parameters. This leaves the agent with insufficient guidance on how to use optional filters or format options.

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?

Description clearly states the tool scans the local Samsung Health export and reports record types, workouts, date coverage, freshness, and safe next calls. It uses specific verbs and resources, and distinguishes itself from siblings like samsung_health_list_records and samsung_health_daily_summary by focusing on an inventory overview.

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 usage as a first step before other tools by mentioning 'safe next calls,' but lacks explicit when-not or alternative guidance. Context from sibling tool names helps, but the description does not directly state when to use this over other tools.

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