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Create strobe

create_strobe

Creates a full-frame color strobe flash that pulses on/off at a given rate, with adjustable duration and brightness, and optionally overlays onto a source video.

Instructions

Build a beat-syncable strobe / flash layer — a full-frame colour flash that pulses hard on/off, the signature live-VJ strobe effect. A square-wave LFO CHOP at the given Rate (Hz) drives a Level TOP's brightness so a Constant TOP (the flash colour, white by default) blinks; Duty sets the on-time fraction. With an input_path the flash is composited OVER that source (pulled in by a Select TOP, so it can live in another container); without one, the bare flash is output. Output is a Null TOP. Rate is free-running for v1 — bind the LFO's frequency to a beat CHOP later to lock it to the tempo.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
rate_hzNoStrobe rate in flashes per second (Hz) — the LFO CHOP square-wave frequency.
intensityNoBrightness of the flash when it is on (0..1). Drives the Level TOP's brightness1.
colorNoFlash colour as a hex string ('#ffffff' = white, the classic strobe). Sets the Constant TOP's RGB.#ffffff
dutyNoOn-time fraction of each cycle (0..1, 0.5 = even on/off). Mapped to the LFO CHOP's Bias, which rectangularises the square wave.
input_pathNoOptional absolute path of a source TOP to flash OVER. Pulled in via a Select TOP (TD wires don't cross containers) and composited under the flash. If omitted, the bare flash is output.
expose_controlsNoExpose live Rate / Intensity / Duty knobs bound to the right node parameters.
parent_pathNo/project1
Behavior5/5

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

Beyond the annotations (readOnlyHint=false, openWorldHint=true), the description details the specific network nodes created (LFO CHOP, Level TOP, Constant TOP, Null TOP, optional Select TOP) and the compositing behavior, as well as the free-running nature of the rate.

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

Conciseness5/5

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

The description is concise yet comprehensive, with a logical flow from purpose to technical mechanism to usage variants. Every sentence adds value, and there is no wasted wording.

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

Completeness4/5

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

Given the lack of output schema, the description adequately explains the output (Null TOP), the optional compositing, and future binding. It covers the main functionality but omits edge cases like invalid paths or error handling, which are acceptable for a creation tool.

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?

With 86% schema description coverage, the schema already describes most parameters. The description reiterates key parameters (rate, duty, color, input_path) without adding significant new semantics, and the parent_path parameter is left undescribed.

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 'Build a beat-syncable strobe / flash layer' with a specific verb and resource, and distinguishes it from sibling creation tools by focusing on the signature live-VJ strobe effect.

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

Usage Guidelines3/5

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

The description explains the internal mechanics but does not provide explicit guidance on when to use this tool vs. alternatives like create_glitch or create_kaleidoscope, nor does it state any prerequisites or exclusions.

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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