runOauthPkceFlow

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

Annotations already declare readOnlyHint=true and idempotentHint=true, so the safety profile is covered. The description adds the behavioral nuance of default mock-AS mode and real-tenant mode, but does not elaborate on other traits like side effects or authentication needs beyond what annotations provide.

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 concise sentences, with the core purpose in the first sentence and a mode distinction in the second. There is no redundancy or superfluous text.

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?

Despite moderate complexity (6 parameters, nested objects, no output schema), the description covers only the high-level flow and a mode switch. It lacks information on return values, error handling, and parameter roles, making it insufficient for complete understanding.

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?

With 0% schema description coverage, the description must explain parameter meanings. However, it mentions no parameters at all; terms like 'target', 'clientId', and 'redirectUri' are left undefined. This is a critical gap for an agent to invoke the tool correctly.

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 identifies the tool as exercising an OAuth 2.1 PKCE S256 flow against a target, with distinct modes (mock vs. real). This verb+resource+mode combination is specific and differentiates it from sibling tools like runJsonRpcCompliance or runTransportSuite.

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 only mentions a flag to switch between mock and real tenant, but provides no explicit guidance on when to use this tool versus alternatives. There is no mention of prerequisites, contexts, or exclusions relative to siblings.

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