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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions 'purchase' and 'route the contributor share' but does not disclose costs, reversibility, side effects, required permissions, or what happens after invocation. The agent is left without critical behavioral information for a financial transaction.

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 a single, concise sentence with no fluff. It front-loads the core action and is easy to parse. However, it is almost too sparse; while concise, it sacrifices necessary detail for brevity, making it less informative than it could be.

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 tool with four parameters, no output schema, and no annotations, the description is severely incomplete. It does not explain what parameters are required, what values they accept, what the tool returns, or any constraints. An agent cannot reliably invoke this tool without external documentation.

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 schema description coverage is 0%, and the description does not explain any of the four parameters (asset_slug, request_id, usage_type, max_cost_cents). The term 'capability asset' loosely maps to asset_slug, but no parameter meaning, default behavior, or constraints are conveyed. The agent has no way to infer correct values or relationships.

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 action ('Purchase'), the resource ('a published human-origin capability asset'), and the secondary action ('route the contributor share'). This is specific and distinguishes it from related tools like me_purchase_execute, which likely focuses on execution rather than licensing, and me_find_assets, which is about 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 provides no guidance on when to use this tool versus its siblings. It does not mention prerequisites, conditions, or alternatives. An agent cannot determine whether to call this or me_quote, me_purchase_execute, or me_public_quote without additional context.

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