remove_devices_from_group

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

With no annotations provided, the description carries the full burden of behavioral disclosure. Although it clearly states the removal action and the name validity constraint, it does not disclose side effects, error behavior, irreversibility, or permissions. This is a mutation tool, so more transparency is expected.

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 appropriately sized and front-loaded, but the first sentence repeats the tool's action before the second sentence restates it. Each sentence has purpose, but minor redundancy prevents a top score.

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?

The tool has only 2 parameters with full schema coverage and an output schema, so the description doesn't need to explain return values. However, it leaves ambiguity about the devices argument when null/default is used, and it does not clarify behavior when the group doesn't exist or devices are absent. This gap in edge-case handling makes it incomplete.

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 schema already documents both parameters with 100% coverage, so baseline is 3. The description adds meaning by explaining each argument in prose and emphasizing that name must be a valid group, with a pointer to get_device_groups. This extra validation context lifts it above the baseline.

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 tool's purpose with a specific verb ("Remove") and resource ("devices from a device group"), and distinguishes it from sibling tools like add_devices_to_group. It also provides context about valid group names via get_device_groups.

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 gives clear usage context, stating that the name must be a valid device group and referencing get_device_groups for finding valid names. It does not explicitly exclude alternatives, but the prerequisite guidance helps an agent know when to invoke this tool.

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