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

The description adds meaningful behavioral context beyond the annotations: it reveals an interactive browser step, that the tool returns an authorization URL, that user consent is required, and that Duvo creates the connection afterward. These are important operational traits that annotations alone do not convey. It does not contradict the annotations.

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, dense sentence that front-loads the purpose and then explains the full flow. Every phrase earns its place: the method (Dynamic Client Registration), the intermediate result (authorization URL), the required user action, and the final outcome (connection creation and redirect). No filler or 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?

Given the tool's complexity (9 parameters, no output schema), the description is largely complete: it explains the interactive nature, the side effect of creating a connection, and the returnUrl behavior. It does not cover failure scenarios or mention prerequisites like required capabilities, but the schema covers parameter-level details well enough.

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 description coverage is 100%, so the individual parameters are already fully documented. The description adds some context by mentioning Dynamic Client Registration and the optional returnUrl behavior, but it does not substantially explain parameters beyond what the schema provides. 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 states a specific verb and resource: 'Start an OAuth-based connection with a remote MCP server using Dynamic Client Registration.' It clearly explains the tool's core function and outcome (returns an authorization URL, creates a connection after consent). However, it does not explicitly distinguish itself from sibling tools like startNativeOAuth or checkMcpOAuth, so it stops short of a 5.

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 usage context is reasonably implied: use this tool when you need to establish an OAuth connection to a remote MCP server. Yet the description never explicitly names alternatives, such as startNativeOAuth or probeMcpServer, or states when not to use this tool. This leaves the agent to infer routing from tool names rather than from explicit guidance.

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