Key-Value Store

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

No annotations provided. Description discloses in-memory, temporary nature and server-lifetime persistence, but does not cover thread safety, size limits, concurrency, or error handling.

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?

Two concise sentences with no unnecessary details, directly conveying the core functionality.

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?

Provides essential context for a simple tool but lacks parameter-action dependencies and error behavior; moderately complete given no output schema and basic requirements.

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 has 0% description coverage. Description only lists operations, offering minimal extra meaning beyond the schema; does not clarify which parameters are required for each action or constraints on key/value.

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 a simple in-memory key-value store with explicit supported operations (get, set, delete, list). It distinguishes well from sibling tools which are text analysis, word count, and mDNS discovery.

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 states 'for temporary data' and 'persists while the server is running,' implying ephemeral use, but lacks explicit when-to-use or when-not-to-use guidance nor mentions alternatives.

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