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

Annotations already declare readOnlyHint=true and openWorldHint=false, so 'Read-only; takes no input' is largely redundant. The description earns its keep with the detailed field-level return contract (plan, per-project id/address/name/tracked brand/website/setup-complete/latest-update/app link), which no structured field provides.

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?

Three sentences, front-loaded with purpose, then the ordering rule, then the return payload. No filler; the mild repetition of read-only/no-input is the only slight overlap with structured fields.

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 no output schema available, the description must describe return values and it does so exhaustively, including both the account-level plan and each project's fields. Combined with the read-only annotation, an agent has everything needed to call and consume the result.

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?

Zero parameters means the schema carries no semantics to add to; the description correctly confirms 'takes no input'. Baseline for a no-parameter tool is 4, and nothing here is missing or misleading.

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 projects of the connected Rempa account') and immediately distinguishes itself from get_project by framing itself as the account-wide discovery call. An agent can tell exactly what this returns without opening the schema.

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?

'Call this first: every other tool takes a project id or address from here' gives an explicit ordering rule and the reason for it, which is stronger than a generic when-to-use note. It effectively routes the agent away from the many sibling tools that require an id this tool supplies.

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