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

Annotations already declare readOnly, idempotent, and non-destructive, and the description adds genuinely non-obvious behavior: reminders run without an open LLM session and never approve a dossier or send a bid to a buyer. This is valuable side-effect context beyond what annotations provide.

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 short sentences with the core purpose front-loaded and the safety context following. Every sentence earns its place; there is no filler or redundant restatement of the tool name.

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 zero-parameter read-only tool, this is nearly complete. The only minor gap is that it does not describe the exact return shape, but with no output schema and such a well-scoped read target, the agent has enough to call it correctly.

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 zero parameters, the schema covers everything and the baseline is 4. The description adds no parameter-level detail, which is acceptable here, and it hints at the response scope by listing preferences, rules, and engine activation.

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?

Opens with the specific verb 'Read' and names three concrete resources: reminder preferences, workspace rules, and actual engine activation. This clearly differentiates it from sibling set_* tools and immediately tells the agent what the tool returns.

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?

The read-only wording clearly signals the inspection use case, and with zero parameters there is no invocation ambiguity. However, it does not explicitly name set_notification_preferences or set_notification_rules as the alternatives for modification, so it stops short of full sibling routing.

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