50/30/20 Budget Analyzer

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

No annotations are provided, so the description carries full burden. It transparently describes the tool as an analyzer that surfaces overspending and recommendations, implying read-only, non-destructive behavior. However, it does not explicitly state that no modifications occur or mention any 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?

Two sentences with no redundancy. The first sentence identifies the purpose and rule, the second lists actionable outputs. Perfectly front-loaded and efficient.

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 two parameters and no output schema, the description fully covers input requirements and expected results (overspending, unallocated money, split comparison, recommendations). No gaps remain.

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 100%, so baseline is 3. The description adds overall context (50/30/20 rule) but does not enhance understanding of individual parameters beyond the schema, which already describes them clearly.

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 it analyzes a monthly budget against the 50/30/20 rule, listing specific outputs like overspending and recommendations. This distinguishes it from sibling financial calculators such as debt_payoff or fire_calculator.

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 implicitly indicates use for budget analysis but provides no explicit guidance on when to use this tool vs alternatives like side_hustle_ranker or subscription_audit. No when-not-to-use or context hints are given.

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