founder-letter-audio

founder-letter-audio is a skill for Claude Code, Codex from dailyaiagents-cpu/dailyai-os. It costs 73 tokens per session (341 once invoked), scanned A, original, MIT.

A tool that turns a written founder letter into an MP3 using ElevenLabs, a text-to-speech service that creates spoken audio. It checks the voice and text before sending anything to the service and records monthly character usage.

In plain words
What is it for?
Use it to publish an audio version of a founder letter, add a listen link to the Markdown source, and save the generated MP3 and usage record.
Why use it?
It removes the need to record the letter manually and helps track use against the stated monthly limit. It also reports whether audio creation succeeded, was blocked, or failed.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for openclaw. Also seen: built for openclaw.

Good fit Use it to publish an audio version of a founder letter, add a listen link to the Markdown source, and save the generated MP3 and usage record.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dailyaiagents-cpu/dailyai-os/founder-letter-audio
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.

Any agent
npx skills add dailyaiagents-cpu/dailyai-os --skill founder-letter-audio
Clone the repo
git clone --depth 1 https://github.com/dailyaiagents-cpu/dailyai-os

Made for: Claude Code, Codex.

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.

agentmods badge for founder-letter-audio

README.md
[![agentmods](https://agentmods.dev/badge/skills/dailyaiagents-cpu/dailyai-os/founder-letter-audio/github.svg)](https://agentmods.dev/skills/dailyaiagents-cpu/dailyai-os/founder-letter-audio)
Your own site
<a href="https://agentmods.dev/skills/dailyaiagents-cpu/dailyai-os/founder-letter-audio"><img src="https://agentmods.dev/badge/skills/dailyaiagents-cpu/dailyai-os/founder-letter-audio/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.

agentmods 80×15 button for founder-letter-audio

Your own site · 80×15
<a href="https://agentmods.dev/skills/dailyaiagents-cpu/dailyai-os/founder-letter-audio"><img src="https://agentmods.dev/badge/skills/dailyaiagents-cpu/dailyai-os/founder-letter-audio.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 341 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00073 $0.00341
Opus 5 $0.00036 $0.00170
Sonnet 5 $0.00015 $0.00068
Haiku 4.5 $0.00007 $0.00034

Measured 12d ago against content hash bfb70da339c3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

founder-letter-audio 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 12d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (run.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/founder-letter-audio/SKILL.md · 31 lines

What it actually says

founder-letter-audio

Audio counterpart to founder-letter-publish. See SOUL.md for the voice picker and quota tracking shape.

Manual run

bash ~/.openclaw/skills/founder-letter-audio/run.sh data/founder-letters/2026-05-draft.md

Required env

  • ELEVENLABS_API_KEY set in ~/Library/LaunchAgents/ai.hermes.gateway.plist (since cont-5)

Outputs

  • site/audio/founder-letter-<YYYY-MM>.mp3 — TTS-rendered audio (typical 800-char letter ≈ 60-90 sec, 600-900 KB)
  • Source <letter>.md gets a 🎧 Listen: /audio/founder-letter-<YYYY-MM>.mp3 line prepended after the H1
  • data/voice/elevenlabs_usage.json updated with the month's cumulative chars

Status codes

STATUS=ok mp3=... chars=N quota_remaining=N / STATUS=blocked reason=... / STATUS=error reason=...

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 12d ago First seen · 31 lines · 73 tokens per session scan A bfb70da339c3

Subscribe to this mod's changes

founder-letter-audio is a skill published in the GitHub repository dailyaiagents-cpu/dailyai-os (0 stars, last pushed 4mo ago), licensed MIT. It adds 73 tokens to every session and 341 once invoked, about $0.0004 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 2026-08-31.

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