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beat-mcp-bridge

beat-mcp-bridge

by tholtman1-del
OverviewSchemaSourceRelated ServersDiscussionsAdmin
JavaScript
Local

Get scene list

beat_get_scenes

Extract just the scenes from a Beat screenplay, returning each scene's index, heading, and position. Optionally select a document by index, or default to the frontmost one.

Instructions

Get just the scenes (no sections/synopses) of a Beat document, with sceneIndex, heading text, and position.

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": "beat_get_scenes"
  }
}

Input Schema

NameRequiredDescriptionDefault
docIndexNoIndex into the list returned by beat_list_documents. Omit to target the frontmost/current document.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A4.3/5.0
Behavior4/5

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

With no annotations, the description carries the burden of disclosing behavior, and it does so by specifying the exact return fields: sceneIndex, heading text, and position, while explicitly excluding sections/synopses. It does not mention side effects, but the 'get' verb and read-only nature are clear enough for this simple retrieval tool.

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 a single, efficient sentence that front-loads the core action and immediately clarifies the scope and return fields. Every word contributes value, and there is no redundant or filler content.

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?

This is a low-complexity tool with one optional parameter and no output schema, and the description fully specifies what is returned and what is excluded. An agent has enough information to select and invoke this tool correctly without additional context.

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 for its single optional parameter, including a clear explanation of docIndex and its omission behavior. The description adds no additional parameter context, so the baseline score of 3 is appropriate.

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 states a specific verb ('get') and resource ('scenes of a Beat document'), and immediately distinguishes itself from related tools by clarifying it returns no sections/synopses. This lets an agent differentiate it from beat_get_outline and beat_get_scene_text.

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

Usage Guidelines4/5

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

The description clearly conveys that this tool is for retrieving only the scene list, not sections or synopses, which gives context for when to use it. It does not explicitly name alternative tools or state when-not-to-use conditions, but the focus on 'just scenes' provides sufficient 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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