login_provider

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

With no annotations, the description carries the behavioral disclosure burden. It mentions anonymous authentication but does not reveal potential side effects, session management, or error behaviors. Some behavioral context is provided, but additional details would be helpful for a mutation tool like login.

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?

Two sentences with no wasted words. The first sentence immediately states the overall purpose, and the second provides specific usage details. Front-loaded and efficient.

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 an output schema (not shown) that likely covers return values. The description covers the main authentication modes. It does not discuss prerequisites or integration with sibling tools, but overall it provides sufficient context for a login tool of moderate complexity.

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 0%, so the description must compensate. It explains the purpose of 'token' and 'credential_file' parameters, adding meaning beyond type info. However, 'username' is left undocumented. The description partially bridges the gap, earning above baseline.

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 purpose: 'Authenticate with a bug data provider'. It uses a specific verb ('Authenticate') and resource ('bug data provider') with examples, distinguishing it from sibling tools like get_bug, list_bug_providers, which are about data retrieval.

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 guidance on authentication modes for Launchpad, including when to provide a token, credential file, or omit both for anonymous access. It implies usage context but does not explicitly state when not to use the tool or mention alternatives.

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