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

With no annotations provided, the description carries full behavioral burden and does well: it clarifies that it does not move parent escrow or authorize automatic charges, and requires API key. However, it doesn't detail whether changes are reversible, what happens to existing settings, or the response format.

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?

Three sentences, each front-loaded with critical information: purpose, prohibition, and limitations. No wasted words; every sentence earns its place by adding essential constraints or clarifications.

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?

Tool has 4 parameters with 0% schema description coverage, no output schema, and no annotations. The description is missing parameter explanations, return value behavior, and error conditions. It covers important behavioral aspects but falls short on the full context needed to invoke correctly.

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 0%, so the description must compensate but fails to explain any parameters. It mentions 'total and per-task limits' which vaguely maps to total_cents and per_task_cents, but doesn't define units (cents), the meaning of parent_task_id, or the optional 'enabled' parameter. This leaves 4 parameters undocumented in both schema and description.

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?

States specific verb and resource: setting operator-approved total and per-task limits for separately funded subtasks of a funded parent job. This clearly distinguishes it from siblings like delegate_agent_task, as it focuses on budget configuration rather than task delegation. The scope is precise.

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?

Explicitly states 'Never use without your operator's authorization,' providing critical when-not-to-use guidance. However, it doesn't reference specific alternative tools for related budget operations or clarify when to use this versus other funding tools, leaving some context unexplained.

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