check-pce-credentials-status

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

With no annotations, the description carries the behavioral disclosure burden. It does disclose that secret values are not revealed, which is useful, but it does not state whether the tool returns a simple boolean, what happens when no credentials are registered, or whether any read-only guarantee applies beyond not revealing secrets.

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 sentence with no filler. It front-loads the core action and immediately follows with the important privacy qualifier, making every word meaningful.

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 zero-parameter status check, the description covers the essential purpose and a key behavioral constraint. It is slightly incomplete because there is no output schema and the description does not explicitly state the return value format, though 'check whether' strongly implies a boolean or status 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?

The tool has zero parameters, so the schema already fully documents that no input is needed. The description adds useful context by clarifying that the check is for the current user and that secret values are not exposed.

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 and resource: checking whether PCE credentials are registered for the current user. It also adds the distinctive qualifier 'without revealing the secret values,' which sets it apart from registration and deletion tools among the siblings.

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?

The purpose is clear, so an agent can infer this is for verifying credential registration status. However, it does not explicitly say when to use this versus check-pce-connection or register-pce-credentials, nor does it mention any exclusions or prerequisites.

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