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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds real invocation-shaping behavior beyond that: the hard 31-day maximum range and the underlying endpoint (GET /api/v1/timeclock_report). It does not mention pagination or result ordering, which keeps it from a 5.

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 compact sentences: purpose and scoping constraint first, endpoint reference last. No filler, nothing redundant with the title or schema.

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 no output schema, the description does carry the burden of conveying returns and it names the record contents (clock-ins/outs, hours). Required parameters and the key constraint are covered. It stops short of describing response shape or ordering, a minor gap for a straightforward report call.

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 100%, so every parameter (start_date, end_date, location_id, user_ids, include_deleted, include_clocked_in) is already documented in the schema. The description only restates the conceptual scope and adds no syntax or cross-field rules, so the baseline of 3 applies.

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?

Specific verb + resource + scope: 'Get staff timeclock records (clock-ins/outs, hours) at a location between two dates'. Parenthetical even names the record contents. No sibling tool covers staff timeclock data, so it is unambiguous.

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?

States the selection constraints that govern use: a location plus a date range capped at 31 days. It does not explicitly name an alternative tool or say when not to use it, but no sibling overlaps this data, so there is little to disambiguate.

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