login_direct

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

No annotations are provided, so the description carries full behavioral burden. It discloses the core action (bypass billing login) but omits details like authentication requirements, side effects (e.g., persisting credentials), or error conditions. The description adds some value but is incomplete for a credential-storing tool.

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 consists of two sentences, directly stating the purpose and usage condition. No unnecessary words or repetition. Perfectly front-loaded.

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?

The tool has 5 parameters, no output schema, and no annotations. The description does not explain return values, whether credentials become active immediately, or how to verify success. It covers the core purpose but leaves behavioral gaps typical for authentication tools. Adequate but not fully complete.

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 coverage is 100%, with each parameter having a description (e.g., orgId as 'Organization/tenant ID', apiKey as 'API key (ak_...)' ). The tool description adds minimal extra meaning beyond the schema, merely restating the condition for use. Baseline 3 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 clearly states the tool's action ('store credentials directly for a project') and distinguishes it from the billing login process, implying a sibling tool for that purpose. The condition for use ('when you already have an org ID and API key or JWT token') is explicit.

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 explicit context for when to use this tool (when credentials are already available) and implies an alternative (billing login), but does not name sibling tools like 'login' directly or specify when not to use. This is clear but not exhaustive.

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