Get PubNub Core SDK Documentation

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

With no annotations provided, the description carries the full burden. It states the output includes 'code examples, API references, and implementation guides,' which implies a read-only, side-effect-free operation. However, it does not explicitly declare read-only safety or mention any restrictions, but for a documentation tool this is adequate.

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 well-structured with headings and bullet points, front-loading the purpose and providing all key information in a concise manner without unnecessary filler.

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 no output schema, the description adequately explains the return type (code examples, API references, implementation guides) and usage context. It could mention pagination or size limits, but for a documentation tool this is sufficient.

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 0%, so the description must compensate. It only refers to 'specified language/feature combination' without explaining what the enum values mean or adding any parameter-specific details beyond the schema field names. This is a significant gap.

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 'Retrieve Core SDK documentation for low-level real-time features' with a specific verb and resource. It distinguishes from siblings by explicitly naming get_chat_sdk_documentation for chat apps and how_to for conceptual guides.

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 'When to use' and 'Do NOT use for' sections, with alternative tool names for each exclusion case, offering clear guidance on when to invoke this tool versus others.

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