adb_ota_fingerprint

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

Without annotations, the description discloses that the tool saves a timestamped JSON file, which is a key behavioral trait. However, it does not mention file location, naming, or any permissions required, leaving some gaps. It is not contradictory.

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 description is two sentences long, directly states the action and details, and has no redundant information. The key details are front-loaded.

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?

While the description covers the main purpose, it lacks details about the return value (does it return the fingerprint or just save?) and the exact output format. With no output schema, this information is missing, making it incomplete for an agent to fully understand the tool's behavior.

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 both parameters already have descriptions. The description adds no extra meaning beyond what the schema provides (label for naming, device for serial). Baseline 3 is appropriate.

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 clearly identifies the tool's action ('capture and save') and specifies the exact components of the system fingerprint (build ID, Android version, etc.), distinguishing it from sibling tools like adb_ota_check which checks for updates.

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 implies usage for capturing fingerprint before/after OTA or updates ('for later comparison') but does not explicitly state when to use this tool versus alternatives like adb_firmware_probe or adb_device_info. No exclusion criteria are provided.

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