Local daemon that puts an MCP coding agent in the same room as the txt2sfx playground: validate, render, measure and audition soundline without hosting anything.

Shared types and physical constants for txt2sfx. Zero runtime dependencies.

The LLM half of the pipeline: providers, the system prompt built from the live grammar tables, and the generate-validate-render-optimize loop. Zero runtime dependencies — providers speak HTTP through `fetch`.

soundline DSL: lexer, parser, serializer, validator, compiler, renderer. Zero runtime dependencies.

Acoustic profile extraction, sound distance metrics and human-readable diffs. Zero runtime dependencies.

Differential evolution over a soundline's `~value[min..max]` slots. Zero runtime dependencies.