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

The annotations already establish that this is a mutating (readOnlyHint=false) but non-destructive (destructiveHint=false) operation. The description adds no additional behavioral context such as side effects, return behavior, permissions, or creation semantics beyond what the annotations and name convey, so it earns only a basic non-contradictory level.

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 states the verb, resource, and primary fields with no filler. There is no redundant repetition of 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?

With a fully documented 5-parameter schema and read/write annotations, an agent has everything needed to construct a valid call; the description covers the core creation intent. It could be more complete by noting return behavior, but that is not critical for a straightforward create operation.

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?

Input schema coverage is 100%, and the schema already documents title, body, tags, is_pinned, and project_id. The description's 'optional tags' restates what the required array already implies and adds no new semantic detail, matching the baseline for high schema coverage.

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 uses a specific verb ('Create') and resource ('note'), and the mention of title, body, and optional tags makes the core behavior immediately recognizable. Among siblings like create_book, create_task, and create_contact, this is unambiguously the note-creation tool. Minor omission of is_pinned/project_id doesn't obscure the purpose.

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?

The description gives no explicit when-to-use guidance versus alternatives such as list_notes or delete_note, nor does it distinguish from sibling create_* tools. However, the tool name and 'Create a new note' make the primary use case obvious, so usage context is implied rather than stated.

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