fingerprint_windows

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 discloses what the tool inspects and that it reports 'with confidence', plus a journaling policy ('version facts ... fine to journal; media contents stay out of the repo'), but says nothing about failure behavior or return structure. Adequate, not rich.

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?

Three tight sentences: purpose first, then the 'run this first' directive, then the journaling note. The final sentence is somewhat tangential but short enough to earn its place as policy context.

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 values need not be described. For a one-parameter read-only fingerprint tool, the description covers purpose, ordering in the workflow, detection signals and confidence. The only gap is parameter detail, which is minor for a self-evident iso_path.

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 0% for the single iso_path parameter. The description contextualizes it only as 'an install ISO', adding no path format, host-vs-guest location, or validation details, so it does not compensate for the schema gap.

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+resource: 'Identify the Windows version/build inside an install ISO', and enumerates the signals examined (layout markers, version resources, cversion.ini). It is clear what the tool does, though it does not explicitly contrast itself with the ISO siblings (iso_inspect, iso_verify).

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?

'Run this first. It decides the API-surface strategy (NT 5.x vs 6.x differ a lot)' gives clear when-to-use sequencing and rationale. However, it never names the alternative tools or states when NOT to use it, so it stops short of full routing guidance.

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