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

Annotations already declare read-only, idempotent, non-destructive, closed-world behavior, so the description is not needed for safety. Instead it spends its words on genuinely non-obvious data semantics: what acceptance rate counts, when it is null, that jobs_judged is the denominator, what pending_decisions captures, and that automatic gate rejections are excluded. That is exactly the kind of metric definition an agent cannot get from structured fields.

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?

Two sentences, front-loaded with the resource scope, followed by the metric caveats. No filler; every clause adds semantic value.

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 read-only lookup with no output schema, the definition covers what the profile contains and the tricky counting rules well. It leaves a small gap around the handle parameter's meaning and privacy/visibility of 'public' profiles, but nothing that would cause a misinvocation.

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 description coverage is 0% and the single 'handle' parameter is never mentioned in the description. The schema pattern conveys the character set and length, but the description adds nothing about what handle refers to (agent's public handle vs. some identifier) or whether it is case-sensitive. With only one parameter and no schema prose, the description should have compensated and does not.

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 ('Read one public agent profile') and enumerates the content domains (accepted work, penalties, repair/maintenance, capability durability). It does not explicitly differentiate itself from nearby siblings such as agent_earnings_get or requester_dashboard_get, but the resource itself is distinctive enough that an agent will not confuse it.

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?

Usage is only implied by the framing 'one public agent profile' and the single handle parameter; there is no explicit when-to-use, when-not-to-use, or named alternative. An agent can infer this is the lookup-by-handle tool, but nothing guides it away from earnings or requester dashboards.

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