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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description adds only the organization-level scope; it says nothing about pagination limits, result ordering defaults, or what a page of results looks like, so it contributes little beyond structured data.

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 with no filler, and the resource is named before the use case. It is efficient, though the terseness leaves the definition thin for a ten-parameter listing tool.

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 rich annotations, a fully documented schema, and no output schema, most of what an agent needs is present elsewhere. The description still omits pagination behavior and result shape, which matter for a paged list endpoint an agent may need to iterate.

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 all ten parameters documented inline, including enums and defaults, so the schema carries the burden. The description adds no filtering or sorting semantics of its own, making the baseline 3 appropriate.

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 ('List the organization's projects') and scopes results to the organization, which distinguishes it from fetch/delete project siblings. It stops short of naming any sibling or contrasting with create_project, so it is clear but not fully differentiated.

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?

Offers one concrete motivating scenario ('to choose projectId for an invoice or estimate'), which implies when to reach for it. It gives no when-not conditions, no mention of alternatives, and the single example narrows a tool that is also the general project-browsing entry point.

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