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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is fully covered. The description adds no behavioral context at all: nothing about return shape, volume, ordering, or whether notes are per-website or per-chart.

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?

It is a single short fragment, but that brevity comes from under-specification rather than efficiency. There is no front-loaded statement of action or scope.

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 four-parameter tool with no output schema, the description leaves critical gaps: it never explains what a "note" contains, what "the chart" refers to given that no chart/dashboard parameter exists, or how the date range filters results. The definition is not usable without guessing.

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%, with website, period, from and to all documented in the schema, so the baseline of 3 applies. The description adds nothing about how date filtering interacts with notes, which is a missed opportunity given the time-range parameters.

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 is a noun fragment, "Notes the team made on the chart," that essentially restates the title "Notes" with a hint about origin. It never states a verb (list/retrieve) or what the notes are attached to concretely, and it is not distinguishable from siblings like get_insights or get_audit_findings.

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 guidance, no exclusions, and no mention of any alternative among the many sibling get_* tools. An agent has no basis for choosing this over get_insights or get_audit_findings.

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