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

Annotations already declare readOnly/idempotent/non-destructive, so the description correctly focuses on semantics rather than safety. It adds real context the annotations cannot: day indexing convention (0 = Monday), the HH:MM format, the workspace timezone, and that state is owner-managed elsewhere.

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?

A single dense sentence front-loads the return contents and appends the formatting conventions and ownership note. Every clause carries information; it loses a point only for packing four distinct facts into one run-on sentence rather than structuring them.

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 must carry return semantics, and it does: it enumerates the response fields conceptually and explains the time encodings. A minor gap is that it does not name actual field keys or indicate ordering of the weekly times.

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?

The tool takes zero parameters, so the baseline is 4. The description productively uses the space to define the encoding of the values it returns rather than restating nonexistent inputs.

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?

Names a specific resource and enumerates what the read returns (weekly posting times, paused flag, queue depth, next free slots), so the agent knows exactly what it gets. It does not, however, distinguish itself from siblings like get_next_slots or get_best_times, which cover overlapping time-related ground.

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?

Usage is only implied: the closing note that 'the owner changes the schedule in the app' signals this is a read-only source of truth for the current configuration. There is no explicit when-to-use or when-to-prefer-get_next_slots guidance, which matters given the closely related siblings.

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