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

Annotations already declare readOnlyHint=true and destructiveHint=false. The description adds useful behavioral context: vote tallies are in AAVE, search ranks by relevance over title/author/description, state values map to lifecycle phases, and includeSummaries has a size/bandwidth tradeoff. It does not disclose pagination edge cases or default ordering, but provides solid additional transparency beyond 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 compact and information-dense. Every sentence earns its place: it clarifies the version misconception, explains core filtering use cases, describes search behavior, and notes the AAVE tally unit. The most important scoping fact is front-loaded.

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?

For a read-only list/search tool with no output schema and 100% schema coverage, the description is nearly complete. It explains state semantics, search scope, result ranking, tally unit, and the includeSummaries tradeoff. It does not mention default sort order or how limit/offset pagination behaves, but those are less critical for a simple query tool.

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%, so the schema already documents all five parameters. The description adds value by explaining the meaning of active/queued states and the tradeoff of includeSummaries, but it does not add significant syntax or format details beyond the schema. Baseline 3 is appropriate.

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 states a specific verb ('List or search') and resource ('Aave DAO governance proposals'), and clarifies scope by noting it is not per-market and unrelated to Aave v3/v4 markets. It also distinguishes from the sibling get_governance_proposal by implying list/search vs single-item retrieval, making it easy for an agent to select correctly.

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 gives concrete when-to-use guidance: use state 'active' for 'what is live right now' and state 'queued' for 'what is waiting to execute'. It also notes that the tool takes no 'version' argument and explains why, preventing a common misuse. It does not explicitly name sibling alternatives, but the search/filter behavior is clearly scoped.

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