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

Annotations already declare readOnly, idempotent, non-destructive, closed-world behavior, so the safety profile is covered. The description adds that results are family-scoped and flags that Vet Center family counseling is free, but says nothing about result count, formatting, or whether the filter is exclusive.

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 tight fragments with the core purpose front-loaded and the program list doing useful enumeration rather than padding. Acronyms (PCAFC, DEA, MyCAA) are domain jargon but each is paired with a plain-language cue, so little is wasted.

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 single-parameter, no-output-schema lookup tool whose annotations already carry the safety profile, the description provides enough to call it correctly. Only the filter's behavior when omitted (all categories vs. a default subset) is left unstated.

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 the baseline is 3, but the description goes further by mapping program names to filter categories (PCAFC caregiver stipend -> caregiver_support, MyCAA -> spouse_education, DEA/Yellow Ribbon -> children_education, TRICARE -> tricare), helping an agent choose the right enum value.

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 a specific resource domain (resources for the LIVING family of a veteran) and enumerates the concrete programs covered, which separates it from the survivor-oriented sibling get_survivor_benefits. It lacks an explicit verb, but the caps-locked 'LIVING' does real discriminating work against survivor benefits.

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?

Usage is implied by the enumeration of family programs, so an agent can infer this is the tool for spouse/child/caregiver queries. However, no explicit when-to-use guidance or alternative (e.g. get_survivor_benefits for deceased-veteran families) is named, leaving the boundary to inference.

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