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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=true, so the safety profile is covered. The description adds real value beyond that by describing the shape of the returned records (who/what/when, action name, changed text) and confirming the read-only GET endpoint — useful since there is no output schema.

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 tight sentences: the first front-loads what the tool returns, the second covers scoping, filtering and the endpoint. No filler and nothing important buried.

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 nine-parameter, no-required, read-only listing tool with no output schema, the description covers the record contents, all filter dimensions and the endpoint, which is nearly everything needed. Pagination mechanics live only in the schema, a minor gap.

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 including paging and ISO timestamps is already documented at the field level. The description restates the filter dimensions (project, component, language, user, action, time range) but adds no syntax or format detail beyond the schema, 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?

The description states a specific resource (the activity log of changes) and enumerates its contents: actor, action, timestamp and changed text. It also names the backing endpoints, so an agent can distinguish it from the other weblate_list_* siblings on first read.

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?

It says how to scope the result (project, component, translation/language) and how to filter (user, action id, time range), which implies the use case. However, it never states when to reach for this tool over siblings such as weblate_get_unit or the per-object endpoints, and gives no exclusions.

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