browser_sessionstorage_set

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

With no annotations, description should disclose behavioral traits like overwriting existing keys, session-scoping, or side effects. Only states the basic action, leaving the agent unaware of important behaviors like overwrite, size limits, or per-session isolation.

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?

Single sentence is brief, but lacks front-loaded key details. While concise, it sacrifices necessary information for completeness. Sentence earns its place but could be improved with additional context.

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 an output schema existing, the description omits crucial context such as return value, error conditions, or the significance of the optional session_id parameter. Minimal coverage for a tool with three parameters and no annotations.

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%, and the description adds no meaning to the three parameters (key, value, session_id). It does not explain the role of session_id or its default value, leaving the agent to infer from the schema alone.

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?

Description clearly states verb 'Set', resource 'sessionStorage key', and object 'value'. Distinguishes from sibling tools like browser_sessionstorage_get, remove, and clear by operation. Precisely communicates the action.

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 on when to use sessionStorage vs localStorage, or when to use this tool over other session storage operations. No context on prerequisites or alternative tools among siblings.

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