A command for changing the speech rate of Piper text-to-speech voices, including the main voice or a target-language voice.

It helps set slower rates such as 2x or 3x, faster playback at 0.5x, or normal speed.

It makes narration easier to follow when learning or listening, or quicker when speed matters.

set-speed — Command for Claude Code by paulpreibisch/AgentVibes

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.

Clone the repo

git clone --depth 1 https://github.com/paulpreibisch/AgentVibes

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/commands/paulpreibisch/agentvibes/set-speed/github.svg)](https://agentmods.dev/commands/paulpreibisch/agentvibes/set-speed)

Your own site

<a href="https://agentmods.dev/commands/paulpreibisch/agentvibes/set-speed"><img src="https://agentmods.dev/badge/commands/paulpreibisch/agentvibes/set-speed/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/commands/paulpreibisch/agentvibes/set-speed"><img src="https://agentmods.dev/badge/commands/paulpreibisch/agentvibes/set-speed.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 338 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00000	$0.00338
Opus 5.5	$0.00000	$0.00135
Sonnet 5.5	$0.00000	$0.00068
Haiku 4.5	$0.00000	$0.00034

Measured 2mo ago against content hash 9513f877200d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

set-speed 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 2mo 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.

.claude/commands/agent-vibes/set-speed.md · 42 lines

What it actually says

Set Speech Speed

Control the speech rate for Piper TTS voices (Piper TTS doesn't support speed control).

Usage

/agent-vibes:set-speed 2x              # Set main voice to 2x slower
/agent-vibes:set-speed target 2x       # Set target language to 2x slower
/agent-vibes:set-speed 0.5x            # Set main voice to 2x faster
/agent-vibes:set-speed target 3x       # Set target language to 3x slower
/agent-vibes:set-speed normal          # Reset to normal speed (1.0)
/agent-vibes:set-speed target normal   # Reset target to normal speed

Speed Values

0.5x or -2x = 2x faster (half duration)
1x or normal = Normal speed
2x or +2x = 2x slower (double duration, great for learning)
3x or +3x = 3x slower (triple duration, very slow)

Examples

# Make Spanish 2x slower for learning
/agent-vibes:set-speed target 2x

# Make main voice faster
/agent-vibes:set-speed 0.5x

# Reset target language to normal speed
/agent-vibes:set-speed target normal

!bash .claude/hooks/speed-manager.sh $ARGUMENTS

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.

2mo ago First seen · 42 lines · 0 tokens per session scan A 9513f877200d

Subscribe to this mod's changes

set-speed is a command published in the GitHub repository paulpreibisch/AgentVibes (156 stars, last pushed 24d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 338 tokens. 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 2026-09-03.

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set-speed next to 6 commands from other repositories
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