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

Beyond the sparse annotations, it reveals that the call creates an anonymous bounded session, returns a secret token, requires later Authorization: Bearer usage, and does not create an Agent ID. No statement contradicts 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?

Three sentences, front-loaded with the core action, followed by two essential operational caveats. Every sentence adds new, non-redundant information.

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 tool with no required parameters and no output schema, it explains session creation, return-token handling, and identity side effects. The main gap is parameter semantics, but the optional nature of the parameters makes this less critical.

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%, but the description does not explain memoryId or idempotencyKey. It only warns not to put the secret token in tool arguments, which is useful but does not clarify what the two actual parameters are for.

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 uses a clear verb and resource: 'Start a bounded anonymous Candy session.' It also disambiguates from sibling tools by noting it 'does not create an Agent ID' and by positioning it as the session-initializing endpoint rather than consume, challenge, receipt, or outcome tools.

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?

It explicitly says to call 'after trying public search,' and gives concrete handling instructions for the returned token: store privately and use as Authorization: Bearer on later calls. It stops short of naming alternatives or explicit when-not-to-use conditions.

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