App Hub: official apps on VeChain

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

Annotations already declare readOnlyHint, openWorldHint, idempotentHint, and destructiveHint. The description adds a behavioral guarantee: 'Always return app URL when available', which provides specific context beyond annotations. No contradictions with annotations.

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 two concise sentences, front-loading the primary action and key filtering capabilities, then adding a promise about return values. Every sentence earns its place with no wasted words.

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 tool's complexity (4 optional parameters, no required parameters, output schema exists), the description covers the core functionality and return behavior. It adequately sets expectations for a list endpoint without requiring details about pagination or result limits, which are assumed to be in the output schema.

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?

Input schema has 100% coverage with descriptions for all four parameters. The description paraphrases these filters but does not add significant new meaning beyond the schema. Baseline 3 is appropriate since schema already conveys parameter semantics.

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 the verb 'list' and the specific resource 'official apps from VeChain App Hub', and enumerates supported filters (category, tag, VeWorld support, free-text search). This distinguishes it from sibling tools like getVeBetterDaoApps which lists different apps.

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 indicates what the tool does but does not provide guidance on when to use it versus alternatives (e.g., when not to use it, or comparisons with similar tools). There is clear context for usage but no exclusions or alternatives mentioned.

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