offsets__buy_offset_budget

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

No annotations are provided, so the description carries full responsibility. It discloses key behavioral traits: idempotent on purchase_id, dry_run for preview without mutation, and a guarantee of never overspending. Missing details on failure modes but sufficient for safe invocation.

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, dense paragraph that efficiently conveys purpose, constraint, use case, idempotency, and dry_run. No wasted sentences; front-loaded with core information.

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 moderate complexity (4 params, no output schema, no annotations), the description covers the essential interactions: budget-based purchase, idempotency, dry_run. Lacks details on error handling or return values but adequate for agent decision-making.

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 coverage is 0% (no parameter descriptions), so the description must compensate. It explains budget_minor as the cost limit and dry_run as preview, but does not elaborate on buyer or purchase_id. Baseline 3 given partial coverage.

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 identifies the tool as a money-denominated offset purchase that retires the maximum cheapest-first verified mass within a budget never overspending. It distinguishes itself from generic purchase tools by focusing on budget-based retirement for currency obligations.

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 explicitly states it is built for callers with a currency amount obligation, providing a clear use case. It mentions idempotency and dry_run but does not explicitly contrast with siblings like offsets__buy_offset or when not to use.

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