create_agent_identity

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

With no annotations, the description fully discloses critical behavioral traits: key returned only once, stored as SHA-256 hash, prefixed with 'vib_', audit log recording, and advice to rotate if lost. No contradictions.

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?

Highly concise: key security warnings upfront, then parameter details. Every sentence adds value. Efficiently structured with a clear paragraph followed by args list.

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?

Covers essential aspects: creation, key handling, security, and parameters. Lacks explicit return structure details, but the key behavior is sufficiently described given the tool's simplicity.

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?

With 0% schema description coverage, the description thoroughly explains both parameters: name with an example, expires_at with format and default behavior. Adds meaningful context beyond the schema.

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?

Clearly states it creates a new agent machine identity and returns an API key. Differentiates from siblings like revoke_agent_identity and rotate_agent_identity by focusing on creation and key handling.

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?

Provides strong guidance on storing the key immediately, rotating instead of recreating on loss, and noting it's a write operation with audit logging. However, does not explicitly contrast with related tools like create_secret.

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