gsa_version_string

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

No annotations are provided, so the description carries the full behavioral burden, yet it discloses nothing about version format (plain string vs. structured), whether GSA must be running, or whether the value is cached. For a read-only getter the risk is low, but the disclosure is still absent.

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?

One short sentence with no filler and the subject front-loaded. It is efficient, though its brevity shades into under-specification rather than economy of information.

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?

An output schema exists, so return-value explanation is not the description's job, and with zero parameters there is no input surface to document. What remains missing is only the usage-routing context relative to sibling environment/info tools.

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?

The tool takes zero parameters, so there is nothing for the description to disambiguate. Baseline 4 applies per the rubric for parameterless tools.

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?

A specific verb ("Return") plus resource ("GSA version string") make the purpose unambiguous, and there is no sibling that returns a version, so misrouting is unlikely. However, the sentence is essentially the tool name expanded into prose, adding no differentiating detail, which keeps it at minimally viable rather than strong.

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 offers no guidance on when to call this versus neighbors like gsa_health, gsa_num_arg, or gsa_arg, which also expose low-level environment information. No prerequisites (e.g., whether a model must be open) or exclusions are stated.

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