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

Annotations already declare readOnly/non-destructive, and the description adds real context beyond them: consent gating, transient (non-persistent) processing, non-identifying input constraints, and preservation of uncertainty. It stops short of explaining retention specifics or failure behavior if consent is missing.

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?

Three tight sentences; the core operation is front-loaded and each sentence adds a distinct constraint (chronology, consent, scope). No filler.

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?

With an output schema covering return values and annotations covering the safety profile, the description is nearly complete for a 2-param tool. Remaining gaps are minor: it does not clarify what 'transient processing' means for data retention or describe the observation item structure.

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?

Schema coverage is 50%: consentConfirmed is well documented in-schema, but the nested observation fields (date, impact, category, uncertainty) lack descriptions. The phrase 'preserving supplied dates and uncertainty' marginally documents two of those fields, but the description mostly does not compensate for the coverage gap.

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?

States a specific verb and resource: sorts user-authored observations into a factual chronology while preserving dates and uncertainty. The scope exclusion (PHI and diagnosis out of scope) helps an agent distinguish it from siblings like reflect_on_flare or prepare_appointment_brief, though no sibling is named directly.

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?

Gives a clear prerequisite (explicit consent for transient processing) and a scope boundary (PHI and diagnosis excluded), which tells the agent when not to use it. It never names an alternative tool for cases outside its scope, so routing is left partly to inference.

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