tailscale_set_devices_authorized

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

Describes parallel execution and partial failure behavior in detail, including return format on partial failure. Annotations indicate mutation and destructiveness, but description adds significant value beyond those.

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?

Two concise sentences plus a use-case sentence. No unnecessary words, front-loaded with purpose.

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?

Covers partial failure return format well. Missing general return schema (e.g., full success structure), but given no output schema, description compensates with key behavioral details. Slight gap for all-success case.

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 baseline 3. Description does not add additional meaning or examples for the two parameters beyond what the schema provides.

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?

Description clearly states 'Authorize or deauthorize multiple devices in one call' with specific verb and resource. The name and title reinforce this, and it distinguishes from sibling single-device authorize/deauthorize tools.

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?

Provides explicit common use cases (batch CI hosts, security review). Implicitly distinguishes from single-device tools, but does not explicitly state 'use single-device tools for one device'. Still clear context.

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