set_monitor_dpms

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

Annotations already declare readOnlyHint=false, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description adds that this is DPMS display power rather than a hardware enable/disable, but it says nothing about what happens to windows, session state, or whether output is returned.

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 front-loaded sentence with no padding. It is efficient, though the parenthetical acronym could be spent instead on distinguishing behavior from the enable/disable monitor siblings.

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 small two-parameter tool with full schema coverage and no output schema, the description is adequate. The main gap is routing guidance against closely named monitor sibling tools, which is left unaddressed.

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 the enum is defined for state; the optional monitor parameter is also documented as 'all monitors if omitted.' The description adds nothing beyond this, so 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?

States a specific verb and resource: turn monitor display on or off via DPMS power management. The purpose is clear, but it does not distinguish itself from the sibling tools enable_monitor/disable_monitor, which sound like they do something similar.

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?

No indication of when to use DPMS power control versus enable_monitor/disable_monitor, nor any preconditions (e.g., whether the monitor must be connected/active). The agent must infer selection from names alone.

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