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

Annotations already declare readOnly, idempotent and non-destructive, so the burden is lighter; the description still adds real context: dates can change, results are capped at 10 with a `total` count, and the response includes citation, official link and guard. The only soft spot is the unexplained term 'guard', which an agent may not know is a field value versus a prose sentence.

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?

Front-loads the core scope, then when-to-use, then parameters, then a limits disclaimer — a clean structure with little waste. The opening clause ('with citation, official link and the guard in one sentence') is slightly tangled and the phrase 'the guard' reads awkwardly.

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 well to preview the return fields and total count, and it flags the informational-not-legal-advice caveat. It is still incomplete for a four-parameter filtering tool, since the features and jurisdictions filters are wholly undocumented.

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%, so the description carries the full load, yet it only explains `within_days` (default 365, max 730) and implicitly the 10-result cap. `features` and `jurisdictions` are never mentioned, leaving two of four parameters with no semantics anywhere.

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-and-resource framing: binding AI-law obligations starting soon, sorted soonest first, with citation, official link and guard. The forward-looking framing cleanly separates it from sibling recently_in_force (past-facing) and search_laws (general lookup).

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 concrete triggering questions ('what is coming', 'what to prepare for', 'which AI laws take effect next year'), which is strong when-to-use guidance. It stops short of naming the alternatives (recently_in_force, search_laws) and stating when not to use it, so it is a 4 rather than a 5.

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