adb_settings

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

No annotations are provided, so the description carries full burden. It fails to disclose that 'put' mutates device state, whether changes persist across reboots, whether some settings are read-only, or if certain namespaces require root/adb-write permissions. The namespace list is mentioned but key behavioral nuances like potential for bricking/system instability from unsafe puts are omitted.

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?

Extremely concise single sentence, front-loaded with the primary verb+resource. Zero waste. However, it's arguably too terse given the criticality of settings mutation and the absence of annotations — brevity here trades away necessary safety 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?

No annotations and no output schema mean the description must do heavy lifting. For a 5-parameter, 2-enum tool that can mutate system settings (a potentially destructive operation), the description is inadequate. It doesn't address what `get` returns, whether `value` is required for `put` but not `get`, or the risk profile of modifying settings. It's a minimal viable spec at best.

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 low (20%), with only serial having a description. However, the description does clarify the namespace parameter's allowed values (system|secure|global), which maps to the enum. The action parameter (get|put) and key/value are self-evident from the schema. The description adds modest value but doesn't fully compensate for the low coverage gap on other parameters like value.

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 states the verb (get/put) and resource (Android setting), and notes the three namespaces. It distinguishes reasonably from siblings: every other sibling tool is about shell/reboot/push/pull/screenshot/etc., so this uniquely identifies the settings operation, though it doesn't explicitly name alternatives.

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?

No guidance on when to use this vs alternatives. It doesn't explain that 'get' is for reading settings and 'put' is for modifying them, nor when one would use adb_settings versus adb_getprop or adb_shell. Usage context is essentially absent beyond the operation names in the schema enum.

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