pplx_claude_sonnet

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

With no annotations, the description should fully disclose behavior. It only mentions cost ('COSTS 1 PRO SEARCH QUERY'), but omits whether it is read-only, what it returns, or if it has side effects. A score of 2 due to minimal disclosure beyond cost.

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 very short but fails to be effectively informative. Every sentence should add value, but this one omits critical details. It is under-specified rather than concise.

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 output schema exists and there are many sibling tools, the description is severely inadequate. It does not explain the tool's output, how it differs from other model-specific tools, or how to use the parameters.

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 provides no information about any of the 3 parameters (query, source_focus, conversation_id), leaving the agent with no understanding of what values to provide.

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 only states 'Claude Sonnet 5 — Anthropic's fast model. COSTS 1 PRO SEARCH QUERY.' It does not include a verb or specify what the tool does (e.g., search, query, generate). Among many sibling tools with model names, it fails to distinguish its action or purpose.

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?

No guidance is provided on when to use this tool versus alternatives like pplx_claude_opus or pplx_grok45. It does not mention use cases, prerequisites, or when not to use it.

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