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

Annotations already declare readOnlyHint, idempotentHint and destructiveHint=false, so 'retrieves data without changing records' largely restates them. The one genuine addition is that the call spends no credits, which is not covered by annotations, but nothing is said about what a note contains or error/not-found behavior.

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 purpose. There is a stray double space and the second sentence is filler given annotations, but overall there is no bloat.

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 simple read-only fetch of one note, the annotations plus schema examples are nearly sufficient, and no output schema exists to explain return shape. Still, an agent gets no information about the returned note's fields or ID format requirements, leaving a gap for a nested-parameter 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?

Reported schema description coverage is 0% at the top level: the single 'path' object carries no description, and the description adds no information about the prospect ID or note ID beyond the schema examples. The description does nothing to compensate for the undocumented container parameter.

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 ('Get prospect note'), which cleanly distinguishes it from the listing sibling dealmachine_get_prospects_id_notes and the mutating dealmachine_patch/delete_prospects_id_notes_note_id tools. It is clear, though it doesn't explicitly name those siblings.

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 guidance on when to use this rather than the notes-list tool or the patch/delete variants. The only usage-adjacent statement is about credits, not about tool selection.

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