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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered. The description adds only that results are paginated and filterable, which is light but non-redundant context; it says nothing about default ordering, page size limits, or org scoping enforcement.

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 waste. It is efficient, though the parenthetical tacks on two unexplained qualifiers rather than earning them with detail.

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 4 undocumented parameters, no output schema, and no enum constraints, the description leaves the agent without enough to invoke the tool correctly - it does not even clarify what a 'builder project' is or what fields come back. Annotations cover safety but not invocation specifics.

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 0% and there are 4 parameters (limit, offset, status, client_id), none of which the description explains. 'Filterable' vaguely gestures at status/client_id and 'paginated' at limit/offset, but no units, defaults, or accepted values are given, so it fails to compensate for the coverage gap.

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 ('List') and resource ('builder projects for the org'), which distinguishes it from get_project (singular retrieval) and from sibling list_* tools that target clients, plans, and templates. However it does not explicitly name a sibling or contrasting alternative, so it falls short of 5.

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 guidance on when to use this versus get_project, list_clients, or other list tools, and no prerequisites or exclusions are stated. 'Paginated, filterable' hints at context but is not a when-to-use rule.

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