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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint=false, and destructiveHint=false, so the safety profile is fully covered structurally. The description adds useful scope context (which program families are evaluated and that multiple checks are combined), but says nothing about permissions, data recency, confidence, or limitations of the matches returned.

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?

Front-loaded: the first sentence names inputs then outputs, and the second sentence adds the one-call aggregation benefit. Efficient overall, though the enumerated input list duplicates the schema and the program-family list makes the first sentence dense.

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 an 11-parameter, zero-required tool with no output schema, the description partially compensates by describing the categories of programs returned. But it does not explain behavior when optional inputs are omitted (e.g. is a bare call valid?), nor how matches are ranked or whether results are exhaustive, leaving a real gap for an all-optional-parameter tool.

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 100%, so all 11 parameters (including eras, discharge characters, and income purpose) are already documented in the schema. The description's parenthetical input list (era, branch, discharge, conditions, state, household income, dependents, current rating, homeless status) restates those fields without adding format, range, or interaction detail beyond what the schema provides. Baseline 3 is correct.

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 verb (returns matched programs) and resource (benefits eligibility) plus the exact program families evaluated: PACT/Agent Orange/Camp Lejeune/Gulf War presumptives, GI Bill chapters, VA Pension, HUD-VASH/SSVF, VA Healthcare priority group. This breadth distinguishes it from narrower siblings like match_pact_presumptive or calculate_va_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?

'Combines several eligibility checks in one call' implies the tool is for broad eligibility sweeps rather than single-program lookups, which is implied usage guidance. However, it never explicitly says when to prefer this over siblings such as match_pact_presumptive or calculate_va_benefits, and no exclusions or prerequisites are given.

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