get_current_user_application_key

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

With no annotations provided, the description carries full burden for behavioral disclosure. It states 'Get' which implies a read operation, but doesn't specify whether this requires authentication, returns a specific key format, handles errors, or has any side effects. For a tool with zero annotation coverage, this leaves significant behavioral gaps.

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, efficient sentence with no wasted words. It front-loads the core action ('Get') and specifies the resource precisely. Every word contributes to understanding the tool's purpose.

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 simple read tool with no parameters and no output schema, the description is minimally adequate. However, it lacks information about the return value (e.g., what format the application key is returned in), error conditions, or authentication requirements. With no annotations and no output schema, the description should provide more context about what 'Get' actually yields.

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 0 parameters with 100% schema description coverage, so the schema fully documents the empty input. The description doesn't need to add parameter information, and it doesn't incorrectly suggest any parameters. A baseline of 4 is appropriate for a zero-parameter tool where the schema already provides complete coverage.

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 clearly states the verb ('Get') and resource ('an application key owned by current user'), making the purpose unambiguous. It distinguishes this tool from other application key tools by specifying 'current user' ownership, though it doesn't explicitly differentiate from sibling tools like 'get_current_user_application_keys' (plural) which might retrieve multiple keys.

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 description provides no guidance on when to use this tool versus alternatives. It doesn't mention whether this retrieves a single key versus multiple keys (compared to 'get_current_user_application_keys'), what happens if no key exists, or any prerequisites. The agent must infer usage from the name alone.

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