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paramount-engineering

Roku Dev Studio MCP Server

Send Script to Builder

send_script_to_builder
Idempotent

Submits a validated script to the builder for human review. Designed for multi-step or conditional flows that need manual approval.

Instructions

Drop a validated Action Script into Dev Studio Builder for human review (does not auto-run). Runs the same validation as validate_script. Arguments: script (object or JSON string), optional device. Use only for multi-step / conditional / saved-or-reviewed flows — if the task is a single deterministic action (one keypress, one launch, one RALE command, one ECP query/POST, one screenshot), call the matching direct op (keypress, launch_app, rale_command, ecp_query, ecp_post, screenshot, …) directly instead of wrapping it in a one-step script.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
deviceNoOptional. Target Roku IP (e.g. 192.168.1.75) or serial. Must match an open Dev Studio device tab when provided.
scriptYesRequired. Same shape as for validate_script: object with `steps` array, or a JSON string that parses to that object.
Behavior4/5

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

Adds context beyond annotations: does not auto-run, runs same validation as validate_script. No contradiction with annotations. Annotations already provide idempotent and open world hints.

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?

Front-loaded with core purpose, then usage guidelines. Two sentences plus a longer instruction, minimal waste. Could be slightly tighter.

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 2 params, no output schema, and annotations, the description covers purpose, usage, and parameter shape. No output schema needed; completeness adequate.

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?

Schema coverage is 100%. Description mentions script and device parameters briefly but adds no new semantic information beyond what schema provides.

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?

Description clearly states tool sends a validated Action Script to Dev Studio Builder for human review, distinguishes from siblings by mentioning direct ops as alternatives.

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?

Explicitly states when to use (multi-step/conditional/saved-or-reviewed flows) and when not (single deterministic action), listing alternative direct ops.

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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