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

Annotations already cover readOnly/idempotent/non-destructive/openWorld, so the description only needs to add context — and it does: the ~300-talk corpus size, bilingual availability, and that it returns the best match plus up to five other matching titles. It omits failure behavior (no match found) and whether results are cached or scoped, keeping it below 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?

Three tight sentences: what you get, how to retrieve it, and what comes back. The output payload is front-loaded and no sentence is filler.

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 carries return-value duty and does it well by listing the returned fields and the best-match-plus-five behavior. The only gap is undefined behavior when nothing matches.

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 coverage is 100% and the schema already supplies examples for topic, the en/es enum, and the note that talk_number comes from other_matches. The description's plain-word examples ('trenching', 'heat', 'ladder setup') largely restate the schema, so it adds little beyond the baseline.

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 and resource ('ready-to-deliver construction toolbox talk from Jobsite's library of nearly 300 talks'), enumerates the payload (title, talking points, discussion question, duration, OSHA standards), and is unmistakable against siblings like search_articles or osha_recordability_check.

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?

Explicitly says how to find a talk: by topic or hazard in plain words, by standard number, or by talk_number. That is clear selection guidance, but it never names an alternative tool or a case where you should not use this one.

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