open-context

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

With no annotations, the description carries the full burden. It valuably discloses caching behavior and the external GitHub releases source, but omits error handling (what happens if version not found), cache duration/invalidation, or the structure/nature of returned information.

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 with no redundant words. Front-loaded with the action verbs, immediately scoping to React versions and source. Every element ('cache', 'GitHub releases') adds meaningful behavioral 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?

Adequate for a single-parameter tool with full schema coverage, but lacks description of what specific information is returned (release notes? dates? assets?) given the absence of an output schema. The 'cache' mention helps, but behavioral details remain thin.

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 100% (the version parameter is fully documented in the schema), establishing a baseline of 3. The description does not add parameter-specific details beyond the schema, but none are needed given the complete schema documentation.

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?

Uses specific verbs ('Fetch and cache'), identifies the exact resource ('React versions'), and specifies the data source ('GitHub releases'). The inclusion of 'React' clearly distinguishes this from sibling tools like get_ansible_info or get_docker_image.

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?

Provides implied usage through specific domain scoping (React), but lacks explicit guidance on when to use versus alternatives or when not to use. No mention of prerequisites or requirements for the version parameter format beyond what the schema provides.

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