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

No annotations are provided, so the description carries the full burden. It never states that this is a read-only lookup, what a location record looks like, whether results are paginated, or how many rows a state returns, and it contains a leftover '# todo add filter by location' dev note that muddies rather than informs.

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 core sentence is fine, but the embedded '# todo add filter by location' line is an unedited developer comment that contradicts the state-filtering behavior stated below it and should not appear in a tool definition. Removing it would leave a clean two-line entry.

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 lookup with no output schema, the essentials (state code in, all DTMO CONUS locations for that state out) are present. Still missing is any notion of what fields a location carries or whether the response is bounded, which matters when an agent must decide whether to call this or a per-diem sibling next.

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% and the parameter's own description already explains the US-CA format with examples. The description adds only a redundant restatement of the same format, so the baseline 3 applies rather than anything higher.

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 states a specific verb and resource (get/return DTMO CONUS locations) and scopes it to a single state. The CONUS qualifier, combined with the sibling get_dtmo_oconus_locations, lets an agent infer the domestic-vs-overseas split, though the description never says so explicitly.

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?

There is no guidance on when to pick this over get_dssr_locations, get_dtmo_perdiem_conus, or get_allowances_by_location, all of which plausibly return overlapping location data. The only implied selection cue is the CONUS token in the name itself.

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