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

Annotations already declare that this is a non-read-only, idempotent, non-destructive mutation. The description adds genuinely useful behavior beyond that: the defaults (every 4 hours, 9am–8pm, America/New_York), that publishing only happens during active hours, and that the exact minute is randomized. The one notable gap is that it does not say whether omitted fields remain unchanged on a partial update.

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?

Two sentences, both front-loaded with the actionable content. The first names what can be changed; the second covers defaults and runtime behavior. Every sentence contributes information not already in the schema or annotations.

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 5-parameter, all-optional settings mutation with no output schema, the description covers defaults and publishing behavior well. It does not explain partial-update semantics (whether unspecified fields are preserved) or the response shape, which is a meaningful remaining gap for a mutation tool.

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%, so the baseline is 3. The description earns an extra point by supplying the default values for interval, active hours, and timezone, which the schema does not state, and by explaining the randomized-minute behavior that affects how interval_hours and active hours are interpreted.

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 gives a specific verb ('Change') and resource ('queue settings') and enumerates the concrete settings affected: posting frequency, active hours, timezone, and pause/resume. It does not name any sibling tool or contrast itself with get_queue_status or queue_post, so it is clear but not sibling-differentiating.

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 implied by the description: use this when you want to alter queue behavior. There is no explicit statement of when to use it versus alternatives (e.g., use get_queue_status to inspect current settings, or reorder_queue to change order), and no prerequisites are given.

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