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text_to_music

Creates a Suno task to generate music from a text prompt or lyrics, returning a task ID, status, and output URLs.

Instructions

Create a Suno task on RunAPI (text to music). Returns a task id, status, and output URLs.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
waitNoPoll until the task reaches a terminal status.
modelNoRunAPI model slug for this model line.
styleNoMusic style.
titleNoMusic title.
lyricsNoExact lyrics to sing.
promptNoSong brief for automatic lyrics.
persona_idNoPersona ID.
timeout_msNo
vocal_modeYesVocal generation mode.
continue_atNoTimestamp in seconds to continue from.
audio_weightNoAudio weight (0-1).
callback_urlNoWebhook URL for async notifications.
persona_typeNoPersona type.
style_weightNoStyle adherence weight (0-1).
vocal_genderNoVocal gender.
negative_tagsNoStyles to avoid.
duration_secondsNoDuration in seconds.
poll_interval_msNo
weirdness_constraintNoWeirdness constraint (0-1).
Behavior2/5

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

No annotations are present, so the description carries full responsibility. It only mentions task creation and return fields, but omits whether the operation is synchronous or asynchronous (though the 'wait' parameter implies polling), authentication needs, rate limits, or any side effects.

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 a single concise sentence that efficiently communicates the core action and return values. It is front-loaded and contains no wasted words, though it could benefit from additional context.

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

Completeness2/5

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

With 19 parameters, no output schema, and no usage guidelines, the description is too terse. It fails to explain parameter interactions, the required 'vocal_mode', or the overall workflow (e.g., asynchronous polling).

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 description coverage is 89%, so the schema already documents most parameters. The description adds no parameter-level information beyond the schema, meeting the baseline for high coverage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool creates a Suno task for text-to-music and returns a task id, status, and output URLs. However, it does not distinguish from sibling tools like blend_lyrics or generate_lyrics, which may also involve music generation.

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 is provided on when to use this tool versus alternatives. The description lacks any when-to-use or when-not-to-use information, leaving the agent to infer from tool names.

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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