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

Annotations already declare destructiveHint=true, idempotentHint=true, and readOnlyHint=false, so the safety profile is conveyed structurally. The description adds only the vague phrase 'privacy-filtered project metadata' and says nothing about what is mutated, whether prior state is lost, or how conflicts surface, leaving behavioral gaps despite the annotation coverage.

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 short sentence with no redundancy, which is structurally clean. But it is arguably under-specified rather than concise, and the sentence does not front-load the critical action semantics an agent needs.

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?

This is a destructive, idempotent mutation with 8 parameters, 6 required, and no output schema. The description is far too thin for that complexity, omitting what the tool operates on, the effect of each action, and the version/idempotency contract the schema implies.

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 75%, so most parameters are documented in the schema itself; the description adds no parameter-level detail (e.g., the action enum semantics or expectedVersion conflict behavior). With the remaining undocumented parameters and no compensating description text, it falls below the baseline of 3.

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 verb ('Update') and a resource ('hosted control instruction task'), which is enough to identify the operation type. However, it does not differentiate itself from closely related siblings such as acknowledge_instruction_control, queue_instruction_tasks, or submit_node_instruction, so an agent cannot tell which one applies without opening schemas.

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 when-to-use statement, no prerequisites, and no pointer to alternatives. The only hint is 'privacy-filtered project metadata', which does not tell the agent when this tool is the right choice over the instruction-task siblings.

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