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timeline_pause

Pause the active timeline in TouchDesigner to stop playback and gain control over the current rendering state. Choose a detail level and response format for the operation's status.

Instructions

Pause timeline playback.

detail (str | None): full (default) | summary (long lists cut to 25 + count) | minimal (top-level scalars only).

response_format (str | None): yaml (default, token-cheap) | json.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
detailNo
response_formatNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changedv0.4.0
    • addedInput schema / properties / detail
      Added value: +{
      +  "anyOf": [
      +    {
      +      "type": "string"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "title": "Detail"
      +}
    • addedInput schema / properties / response_format
      Added value: +{
      +  "anyOf": [
      +    {
      +      "type": "string"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "title": "Response Format"
      +}
  2. First observedv0.2.0

TDQS

B3.4/5.0
Behavior2/5

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. However, it only states the core action and parameter options — it does not disclose whether the operation is reversible, whether it interrupts in-progress playback with side effects, what the response contains, or whether pausing requires any preconditions. For a state-mutating tool, this is a significant gap.

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 compact and front-loaded with the core action, then flows directly into parameter specifics. Every sentence earns its place. The only minor weakness is that the parameter explanations run together without separation, slightly reducing scannability.

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?

For a simple pause operation with two format parameters, the description covers the action and parameters adequately. However, it omits behavioral context (response contents, reversibility, side effects) and any relationship to timeline_play or timeline_set. The gaps keep it from being fully complete.

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

Parameters4/5

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

Schema description coverage is 0% and no enums exist, so the description fully compensates. It explains detail's three modes (full, summary with 25-item cut + count, minimal scalars-only) and response_format's two options (yaml as token-cheap default, json), including defaults. This is genuinely useful and goes well beyond the bare schema.

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 precise verb-resource pair: 'Pause timeline playback.' This cleanly distinguishes the tool from its sibling timeline_play (which starts playback) and timeline_set (which configures playback). An agent can instantly determine what action this tool performs.

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?

There is no guidance on when to use this tool versus the closely related siblings timeline_play, timeline_set, or timeline_get. No exclusions, prerequisites, or context cues are provided — the agent must infer that this is for stopping active playback, which could easily be confused with timeline_set for playback control.

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