login

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

The description states it returns a session token, implying safe behavior typical of login tools. However, it does not disclose session expiration, single-session constraints, or any side effects. Since no annotations are provided, the description carries the full burden but falls short of full transparency.

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 two sentences, front-loaded with the action and return value, and directly addresses an alternative usage. Every sentence adds value with no redundancy.

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 login tool with no output schema and no annotations, the description covers purpose, return value, and an alternative. However, it lacks details on error handling, token lifetime, or how to use the token with other tools. It is minimally complete but not rich.

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 minimal property descriptions ('Email address', 'Password'). The tool description adds no extra semantic information beyond mentioning 'email and password'. Baseline 3 is appropriate as the schema and description together are adequate but not enhanced.

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 specifies the verb 'log in', the resource 'Anythink platform', and the method 'email and password'. It also distinguishes itself from the Google OAuth alternative, which is a sibling method.

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 explicitly states when not to use this tool ('for Google OAuth, use the CLI instead'), providing a clear exclusion. However, it does not mention any prerequisites or compare with the sibling tool 'login_direct'.

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