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

Annotations already declare destructiveHint=true, idempotentHint=false, and openWorldHint=true, so the safety profile is known. The description meaningfully adds to this by disclosing that changing the timeframe or turning AI control off closes the paper position first — a concrete, non-obvious side effect not derivable from the annotations. It stops short of describing auth requirements or other partial-update effects.

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 short sentences, front-loaded with the enumeration of changeable fields, then the critical side-effect warning. Nothing is redundant or padded.

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 an 8-parameter destructive mutation with nested objects and no output schema, the description covers the main fields and one important side effect, but omits guidance on the undocumented 'intervals' parameter, partial-update semantics, and confirmation/rollback behavior. Adequate but with clear gaps given the tool's complexity.

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 coverage is 63% and the description mainly restates the field list already present in the schema (models, language, timing_gate, ai_position_control). Its added value is tying 'timeframe' and 'ai_position_control' to a destructive consequence, but it leaves 'intervals' (no schema description) and the nested 'models' override semantics unexplained.

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 clear verb ('change') and enumerates the mutable fields (models, intervals, language, timing gate, AI position control), so the agent knows precisely what this tool mutates. It does not explicitly differentiate itself from siblings like create_autopilot or autopilot_action, but the resource and effect are unambiguous.

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?

There is no guidance on when to reach for this tool versus create_autopilot, autopilot_action, stop_autopilot, or get_autopilot. The second sentence hints at a usage consequence (position closure) but frames it as behavior, not as a when-to-use/when-to-avoid condition.

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