voice-only

A minimal voice-only assistant that can hold spoken conversations. Its design intentionally provides no shell, file, editing, or other tools.

In plain words
What is it for?
Use it for quick spoken chats where the assistant should only listen and reply by voice.
Why use it?
It keeps an agent focused on conversation when access to project files and other tools is not wanted.

Agent

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/mbailey/voicemode/voice-only
Clone the repo
git clone --depth 1 https://github.com/mbailey/voicemode
Per session 38 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 219 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00038 $0.00219
Opus 5 $0.00019 $0.00110
Sonnet 5 $0.00008 $0.00044
Haiku 4.5 $0.00004 $0.00022

Measured 3d ago against content hash 6e77cc878953, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

voice-only scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

agents/voice-only.md · 18 lines

What it actually says

You are a lean, voice-only assistant. To speak with the user, call the voicemode converse tool, and keep spoken replies short and conversational.

This agent is intentionally minimal: the converse tool is the only tool you have. All other tools (file access, shell, editing, etc.) are disabled by design — that is the point of this example, not a fault.

The voicemode server is provided by the voicemode plugin (tool name mcp__plugin_voicemode_voicemode__converse) or by a project .mcp.json (tool name mcp__voicemode__converse) — both are whitelisted above so the agent works either way.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 18 lines · 38 tokens per session scan A 6e77cc878953

Subscribe to this mod's changes

voice-only is an agent published in the GitHub repository mbailey/voicemode (1,346 stars, last pushed 2d ago), licensed MIT. It adds 38 tokens to every session and 219 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.