ring_terminate_whep_stream

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. 'Cleanly terminate' suggests graceful shutdown but does not specify what happens to the session, whether the operation is idempotent, whether the URL becomes invalid afterward, or what the device state is post-termination. For a destructive lifecycle operation, this is a meaningful gap.

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?

A single sentence of 16 words that names the action, target, and mechanism with no filler. All information is front-loaded and every word contributes meaning.

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 is simple (one required parameter, no output schema, no nested objects), so verbosity is not required. However, because there is no output schema or annotations, the description should have disclosed the result of a successful termination and any error/idempotency behavior. The absence of those details leaves the agent unsure what to expect after invocation.

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 100%, and the schema's parameter description already explains that sessionUrl is the URL returned by ring_initiate_whep_stream. The tool description reiterates the same concept ('session control URL') without adding format, validation, or lifecycle details. Baseline 3 is appropriate since the schema does the heavy lifting.

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 uses a specific verb ('terminate') with a clear resource ('active WebRTC WHEP live streaming session') and the mechanism ('session control URL'). This unambiguously distinguishes it from siblings like ring_initiate_whep_stream (creation) and ring_list_devices/ring_get_device_status (read operations).

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 the usage context: the tool operates on a session that must already be active and references the session control URL obtained from ring_initiate_whep_stream, creating an implicit start/stop pairing. It does not explicitly state when not to use it or name alternatives, but with naming siblings all being read/initiate operations, the intended call path is clear.

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