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

Annotations already declare readOnlyHint, openWorldHint, and destructiveHint, so safety is covered. The description adds value beyond that by disclosing the default window behavior (last hour) and the exact record fields returned (id, punch_time, employee_code, terminal_sn, clocking_id), which matters because there is no output schema. Pagination behavior is left entirely to the schema rather than described.

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 tightly written sentences, front-loaded with the core purpose before the scope and returned fields. The trailing endpoint reference is the only mildly redundant element, and it is short enough not to distract.

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 five parameters, one of them required, and no output schema, the description does the important extra work of enumerating the punch fields an agent will receive and stating the default time window. What remains uncovered — pagination semantics and whether results are ordered — is minor and handled by the schema.

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 the schema already explains from/to/page/limit/status including defaults and bounds, which sets the baseline at 3. The description reinforces that status selects between successfully processed and failed punches, but adds no syntax, format, or interaction detail beyond what the schema already provides.

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 gives a specific verb and resource — "List raw clock-in/out punches that were received from punch devices" — with the scope (a time window) and the success/failure filter stated up front. It implicitly separates itself from a summary-style sibling by emphasizing "raw" punches, but never names an alternative, so the differentiation is inferential rather than explicit.

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 implied by the domain framing: fetch raw punch records within a window when you need device-level data, with the last-hour default stated. There is no explicit when-to-use guidance relative to jisr_create_attendance_punches or jisr_list_attendance_summary, and no stated prerequisites or exclusions, leaving the agent to infer the boundary.

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