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reaper-mcp

reaper-mcp

by vecnode
OverviewSchemaSourceRelated ServersDiscussionsAdmin
Rust
Local

render_project

Render the current audio project using its configured settings, with an option to specify an output file path.

Instructions

Render the project using its current render settings. If output_path is given, it overrides the configured render output file path first.

Note: rendering can take time (up to 60 seconds depending on project length).

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "render_project"
  }
}

Input Schema

NameRequiredDescriptionDefault
output_pathNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A3.7/5.0
Behavior4/5

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

The description warns about rendering time (up to 60 seconds), which is a key behavioral trait. With no annotations provided, this adds important context beyond the schema.

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?

Two sentences, front-loaded with the main action, no filler. Efficiently communicates key information.

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

Completeness3/5

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

Lacks details on output location, return value, or blocking behavior. The time warning is helpful, but overall it's minimally complete for a simple 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?

The description explains the 'output_path' parameter's effect (overrides configured path), compensating for the schema's lack of description. However, it doesn't specify format or constraints.

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 tool's purpose: rendering the project using current settings. It distinguishes from sibling tools like 'item_render_in_place_selected' which operates on items, not the whole project.

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

Usage Guidelines2/5

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

No guidance on when to use this tool vs alternatives (e.g., for items vs project). Missing context about prerequisites or scenarios where rendering is appropriate.

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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