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

The description discloses key behaviors beyond annotations: it's a write operation (consistent with readOnlyHint=false), non-idempotent (as implied by idempotentHint=false), charges wallet credit, never charges a card, and returns a top-up URL on short credit. This provides comprehensive understanding of side effects.

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 extremely concise with three front-loaded sentences. It first states the primary action, then explains the amount parameter, then specifies ownership and payment constraints. Every sentence earns its place without repetition.

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 no output schema, the description effectively covers the tool's purpose, precondition (ownership), payment mechanism, failure mode (top-up), and parameter details. It provides sufficient context for an agent to correctly invoke the tool without needing additional information.

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?

The input schema already provides full coverage (100%) and clear descriptions for both parameters (amount as US dollars per review, project_id as id/slug). The description adds no new syntactic details beyond the schema, only behavioral context like ownership. 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 clearly states the tool funds a paid review bounty on the user's own project, paying from wallet credit. This is a specific verb-resource combination (fund bounty) that is distinct from all sibling tools (add_review, get_project, etc.).

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 provides clear usage context: only project owners can use it, payment relies on wallet credit, and insufficient credit triggers a top-up URL. It lacks explicit comparison to alternatives or when-not-to-use scenarios, but the constraints are well articulated.

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