vox

AI Community v0.1.0

Repo stars 39
Author repo awesome-omni-skill

Interpretation is structured for decision-making; original keeps the upstream SKILL.md unchanged.

Decide Fit First

Core job: Lightweight voice MCP server with local Moonshine STT + Kokoro TTS Vox is a lightweight voice MCP server (~1,500 lines of Rust)…
Best fit: Use it when the task has reusable inputs, steps, and validation criteria rather than a one-off answer.
Avoid forcing it: If the source lacks commands, platform support, or external-service evidence, keep those fields unknown instead of guessing.

Design Intent

Structure: The skill is organized around “Project Overview”, “Build & Test”, “Architecture”, “Transport Modes”, showing how the author expects the agent to judge fit, collect context, and produce verifiable output.
Trigger evidence: Prioritize the author’s wording around when to use it, what context to collect, and what output shape to produce.
Evidence boundary: Author text states facts, repository files prove commands and paths, and Fluxly only adds fit, limits, and usage judgment.

How To Use It

Inputs: Provide target material, scope, expected result, forbidden changes, and validation method.
Invocation: Name vox directly; if the source includes slash commands, start with the command and then add task context.
Validation: Start small and check whether the result follows “Project Overview / Build & Test / Architecture” before expanding.

Boundaries And Review

Dependencies: It usually needs no extra API key, so start with a small validation task.
Permissions: Declared permissions include read / shell-exec / env-read; ask the agent to state file, command, and rollback boundaries before acting.
Quality bar: A useful result names the deliverable, evidence, and next action. Generic prose means the task needs tighter context.

Vox — Claude Code Skill

Project Overview

Vox is a lightweight voice MCP server (~1,500 lines of Rust) providing local text-to-speech (Kokoro) and speech-to-text (Moonshine Base) via the MCP protocol. It runs as a stdio subprocess per MCP client, or as a shared HTTP daemon.

Build & Test

cargo check                    # type-check only
cargo test                     # run all unit tests (84 tests across 10 modules)
cargo clippy -- -D warnings    # lint — must pass with zero warnings
cargo build --release          # optimized build (LTO + single codegen unit)
cargo bench -- resample        # benchmark resampling

All of cargo test, cargo clippy -- -D warnings, and cargo fmt --check must pass before submitting changes.

Architecture

Module	Purpose
`main.rs`	Entry point, config loading, model download, stdio/daemon startup
`cli.rs`	Clap CLI parser: daemon, config, download-models subcommands
`server.rs`	MCP tool handlers (`say`, `listen`, `converse`), streaming TTS pipeline
`tts.rs`	Kokoro TTS engine wrapper, voice name → speaker ID resolution, sentence splitting
`audio.rs`	cpal-based mic capture and speaker playback, Lanczos-3 sinc resampling
`stt.rs`	Moonshine Base STT engine wrapper
`vad.rs`	Voice activity detection (Silero ONNX)
`config.rs`	TOML config loading, env var overrides (`VOX_*` prefix), path resolution
`daemon.rs`	HTTP daemon lifecycle: daemonize, PID file, start/stop/status/log
`models.rs`	Model readiness checks and download/extraction
`lib.rs`	Public re-exports for benchmarks (`audio`, `config`, `error`, `tts`)
`error.rs`	`VoiceError` enum with `thiserror` derives

Transport Modes

Stdio (default): rmcp::transport::stdio(). One process per MCP client.
Daemon (vox daemon start [--port PORT]): StreamableHttpService via rmcp. Single process, models loaded once, multiple clients connect over HTTP/SSE. Factory closure creates a VoiceMcpServer per session with shared Arc<Mutex<TtsEngine>> and Arc<Mutex<SttEngine>>.

Config System

Precedence (highest wins):

Environment variables: VOX_SPEED, VOX_VOICE, VOX_MODEL_DIR, VOX_LOG_LEVEL, VOX_PORT
TOML file: $XDG_CONFIG_HOME/vox/config.toml
Compiled defaults (Config::default())

CLI management: vox config get [key], vox config set <key> <value>, vox config path

MCP Tools

Tool	Description
`say`	Speak text aloud through speakers (TTS only)
`listen`	Record from microphone and transcribe (STT only)
`converse`	Speak text then listen for response (TTS + STT round-trip)

Available Voices

American female (af_*): heart, alloy, aoede, bella, jessica, kore, nicole, nova, river, sarah, sky American male (am_*): adam, echo, eric, liam, michael, onyx, puck, santa British female (bf_*): alice, emma, lily British male (bm_*): daniel, fable, george, lewis

Default: af_heart (ID 0). Voices can be specified by name or numeric ID.

Code Conventions

Edition 2024 — uses let chains (if let Ok(x) = ... && let Ok(y) = ...)
Visibility: pub(crate) for test-only exposure, not fully pub
Clippy: treat all warnings as errors (-D warnings)
Tests: inline #[cfg(test)] mod tests per module, tempfile for filesystem tests
unsafe impl Send: TtsEngine and CaptureHandle have manual Send impls due to non-Send cpal/sherpa internals confined to dedicated threads

Dev Workflow

Make changes
cargo test — verify all 84 tests pass
cargo clippy -- -D warnings — zero warnings
cargo fmt --check — formatting
If touching audio.rs resampling: cargo bench -- resample

Fluxly profile Author and license come from source; runtime, permissions, and network are Fluxly detections or estimates

Fluxly category: AI · mcp · voice · tts
Author-declared agents: No explicit declaration found; this is not inferred or tested compatibility
Static check: 98 / 100 · heuristic scan, not runtime safety proof
Author / version / license: @diegosouzapw · v0.1.0 · no license declared
Fluxly token estimate: Lean
Fluxly setup estimate: Guided setup
External API key: No requirement detected
Detected OS requirements: Unspecified
Runtime requirements: Unspecified
Detected file/system behavior: Read-only
Shell exec
Env read
Detected network behavior: Local-only
Install commands: None (reference only)

Profile is derived at build time from SKILL.md and install vectors. Subject to drift from author intent.

Output preview vox.preview

The current SKILL.md does not define a fixed output example.

SKILL.md SKILL.md

# Vox — Claude Code Skill

## Project Overview

Vox is a lightweight voice MCP server (~1,500 lines of Rust) providing local text-to-speech (Kokoro) and speech-to-text (Moonshine Base) via the MCP protocol. It runs as a stdio subprocess per MCP client, or as a shared HTTP daemon.

## Build & Test

```bash
cargo check                    # type-check only
cargo test                     # run all unit tests (84 tests across 10 modules)
cargo clippy -- -D warnings    # lint — must pass with zero warnings
cargo build --release          # optimized build (LTO + single codegen unit)
cargo bench -- resample        # benchmark resampling
```

All of `cargo test`, `cargo clippy -- -D warnings`, and `cargo fmt --check` must pass before submitting changes.

## Architecture

| Module | Purpose |
|--------|---------|
| `main.rs` | Entry point, config loading, model download, stdio/daemon startup |
| `cli.rs` | Clap CLI parser: daemon, config, download-models subcommands |
| `server.rs` | MCP tool handlers (`say`, `listen`, `converse`), streaming TTS pipeline |
| `tts.rs` | Kokoro TTS engine wrapper, voice name → speaker ID resolution, sentence splitting |
| `audio.rs` | cpal-based mic capture and speaker playback, Lanczos-3 sinc resampling |
| `stt.rs` | Moonshine Base STT engine wrapper |
| `vad.rs` | Voice activity detection (Silero ONNX) |
| `config.rs` | TOML config loading, env var overrides (`VOX_*` prefix), path resolution |
| `daemon.rs` | HTTP daemon lifecycle: daemonize, PID file, start/stop/status/log |
| `models.rs` | Model readiness checks and download/extraction |
| `lib.rs` | Public re-exports for benchmarks (`audio`, `config`, `error`, `tts`) |
| `error.rs` | `VoiceError` enum with `thiserror` derives |

## Transport Modes

…

Evidence boundary and execution chain

Author text anchors workflow facts; Fluxly only indexes current sections, terms, files, and commands.

sections -> Project Overview → Build & Test → Architecture → Transport Modes → Config System → MCP Tools
terms    -> Stdio · Daemon · Edition 2024 · Visibility · Clippy · Tests · unsafe impl Send
files/cmd -> cargo test · cargo clippy -- -D warnings · cargo fmt --check · main.rs · cli.rs · server.rs · say · listen
body sha256 -> 248b48e816d1