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

Annotations already declare readOnlyHint, idempotentHint, and closed-world, so the safety profile is covered. The description adds real behavioral context beyond them: the response content (dates, required controls, pointer to a free no-signup self-audit) and an explicit honesty constraint ("Does NOT invent fines, statistics, or legal conclusions"), which is a meaningful guardrail. It does not describe the format or depth of the audit pointer.

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 compliance dates and required controls are front-loaded in the first sentence, with usage guidance last, so an agent can extract the essentials quickly. The single dense sentence carries a lot of parenthetical detail but almost every clause earns its place.

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 the burden of explaining returns, and it does so by naming the three deliverable pieces (dates, required controls, self-audit pointer). The only gap is that it does not say what form the self-audit pointer takes or how exhaustive the requirements list is.

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% and there is only one optional parameter, so the schema fully documents "industry" including its tailoring-only purpose. The description does not reference the parameter at all, so it adds nothing beyond the schema. Baseline 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 uses a specific verb-and-resource framing: it explains the OSHA HazCom 2024 employer compliance dates and the controls a facility needs, then points to a self-audit. That is clearly more than a restated name. It never explicitly distinguishes itself from the sibling hazcom_2024_deadlines, though the added requirements/audit scope implies the difference.

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?

"Use it when someone asks what their business needs under OSHA HazCom or how to prepare for those dates" gives a concrete trigger condition. There is no explicit when-not or routing to hazcom_2024_deadlines for date-only questions, so the overlap with that sibling is left for the agent to infer.

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