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

Annotations already declare readOnly/idempotent/non-destructive/closed-world, so the safety profile is covered. The description adds genuinely useful behavior beyond that: long pages return in parts, section narrows to one heading, markdown is an alternate representation, and cards carry official links plus a 'Checked' date.

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?

The purpose is front-loaded, but the exhaustive content enumeration ('Top 5 picks, Saturday and Sunday plans, every outing, ... Santa and lights listings, getaway trips, tips') is bloat that buries the more decision-relevant routing facts (page keys, section behavior) mid-paragraph. It is one dense run-on rather than a structured brief.

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?

No output schema exists, so the description carries the return-value burden and does so adequately by naming sections, per-card links, 'Checked' dates, the FAQ, and the markdown alternative. It does not explain the city/page relationship or paging limits in detail, which keeps it just short of complete.

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?

With 75% schema coverage the schema already documents most parameters, and the description still adds value by listing concrete page keys ('this-week', 'guide', 'santa', etc.) and explaining that 'section' matches on heading text and 'markdown' swaps the return format. 'city' is left entirely to the schema, but its schema description is strong.

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+resource ('Everything on one Littles Weekly page, in reading order') and enumerates the contents, so the agent knows exactly what comes back. It also ties the 'page' parameter to the sibling list_pages, making it distinguishable from get_events or search.

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 operational guidance: long pages are truncated so pass 'section' to get one heading, 'page' is a key from list_pages, and 'format: markdown' returns a different representation. It stops short of explicitly naming when to prefer get_events or search instead, so it is clear context without full alternative routing.

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