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cancel_crestron_device

Cancel ongoing device actions such as ramp fades, pulse releases, and scheduled timers, leaving the current state unchanged.

Instructions

Stop/cancel activity on a device: stop a ramp (fade) in progress and leave the level where it is, release a pulse in progress to off, and clear any pending delayed action (a scheduled set or pulse). Does not otherwise change the device's value - a device that is simply on/high from a normal set stays on. Use for "stop the fade", "stop ringing the bell", "cancel that timer". Works on any device type.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
device_idYesUnique device identifier (e.g. "lounge_a3").
Behavior5/5

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

No annotations are provided, so the description carries full burden. It fully discloses the tool's effects: stopping ramps, releasing pulses, clearing delayed actions, but not altering a static value. It also notes applicability: 'Works on any device type.' This is complete behavioral transparency.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is informative but slightly verbose. It front-loads the core action and uses examples effectively. While every sentence adds value, it could be trimmed slightly without losing meaning.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given only one parameter, no output schema, and a rich sibling tool list, the description is complete. It explains what the tool does, when to use it, what it avoids, and its broad applicability, leaving no important gaps.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema has 100% coverage with a description for device_id. The tool description adds no additional parameter-level detail beyond the schema's example. Baseline of 3 is appropriate since schema does the heavy lifting.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the verb 'Stop/cancel activity' and specifies the resource 'device'. It enumerates specific actions: stop ramp, release pulse, clear delayed action, and provides concrete examples like 'stop the fade'. This distinguishes it from sibling tools like ramp_crestron_device, pulse_crestron_device, and set_crestron_devices.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description explicitly states use cases: 'Use for "stop the fade", "stop ringing the bell", "cancel that timer".' It also clarifies what it does not do: 'Does not otherwise change the device's value - a device that is simply on/high from a normal set stays on.' This provides clear when-to-use and when-not-to-use guidance.

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

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