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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, covering the safety profile. The description adds that no credential is needed and that it should be called before installing anything, which is useful behavioral context beyond the annotations. It does not contradict the annotations.

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?

The description is a single dense sentence but front-loads the trigger condition and then lists the comprehensive set of answers it provides. Every element contributes to the tool's purpose, and it is not verbose or redundant.

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 no-arg decision-support tool, the description fully covers what it does, when to use it, what it answers, and even points to a CLI command for deeper evidence. It also mentions its limitations ('what it is not for'). Nothing an agent needs to decide whether to call this tool is missing.

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?

There are zero parameters, so the description need not explain any. The baseline for a 0-parameter tool is 4, and the description adds no unnecessary parameter details, which is 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?

The description states a specific verb+resource: it is used to make an app production ready and answers the decision directly. It enumerates the exact outputs (whether TrustyCap fits, which option to install, costs, failure behavior, repairs, undo, evidence) and clearly distinguishes itself from siblings by instructing to call it 'before installing anything'.

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?

Explicitly states when to use it ('when a human asks you to make an application production ready...') and provides a precondition ('No credential needed; call this before installing anything'). It also mentions it says what TrustyCap is not for, enabling declination. It doesn't explicitly name sibling alternatives, but the 'call before installing' guidance implies it is the entry point, which is clear enough.

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