signal-inspection-listening

signal-inspection-listening is a skill for Claude Code, Codex from sonicfieldlabs/akouo. It costs 138 tokens per session (2,022 once invoked), scanned A, original, MIT.

A technical audio-inspection skill that examines files and measurable sound properties before interpretation. It can inspect waveforms, spectrograms, frequency content, loudness, stereo behavior, noise, and recording artifacts.

In plain words
What is it for?
Use it to inspect audio metadata, diagnose recording or mastering problems, review dynamics and frequency balance, find noise or discontinuities, and assess what technical measurements can prove.
Why use it?
It helps distinguish observable signal problems from assumptions about how the audio sounds, including clipping, distortion, silence, codec damage, or channel imbalance.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions OpenCode.

Good fit Use it to inspect audio metadata, diagnose recording or mastering problems, review dynamics and frequency balance, find noise or discontinuities, and assess what technical measurements can prove.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sonicfieldlabs/akouo/signal-inspection-listening
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 sonicfieldlabs/akouo --skill signal-inspection-listening
Clone the repo
git clone --depth 1 https://github.com/sonicfieldlabs/akouo

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 signal-inspection-listening

README.md
[![agentmods](https://agentmods.dev/badge/skills/sonicfieldlabs/akouo/signal-inspection-listening/github.svg)](https://agentmods.dev/skills/sonicfieldlabs/akouo/signal-inspection-listening)
Your own site
<a href="https://agentmods.dev/skills/sonicfieldlabs/akouo/signal-inspection-listening"><img src="https://agentmods.dev/badge/skills/sonicfieldlabs/akouo/signal-inspection-listening/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 signal-inspection-listening

Your own site · 80×15
<a href="https://agentmods.dev/skills/sonicfieldlabs/akouo/signal-inspection-listening"><img src="https://agentmods.dev/badge/skills/sonicfieldlabs/akouo/signal-inspection-listening.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 138 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,022 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 $0.00138 $0.02022
Opus 5 $0.00069 $0.01011
Sonnet 5 $0.00028 $0.00404
Haiku 4.5 $0.00014 $0.00202

Measured 12d ago against content hash a5ea7faf4650, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

signal-inspection-listening 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.

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/signal-inspection-listening/SKILL.md · 147 lines

How it starts

The opening of the file, as written. The whole thing — 147 lines — stays where its author put it; the contents beside it link to each section on GitHub.

signal-inspection-listening

Purpose

signal-inspection-listening is the technical and visual ear of akoúō. It listens through file properties, waveform, spectrogram, dynamics, frequency, stereo field, noise, artifacts, transients, and measurable signal behavior.

This mode establishes what can be technically observed before interpretation begins. It also asks what the measurement interface, codec, model, meter, or visualization makes legible and what it cannot prove.

When To Use

Use this skill for:

  • file inspection
  • audio metadata
  • waveform or spectrogram reading
  • mastering and production notes
  • clipping, distortion, saturation, or limiting
  • frequency distribution and spectral profile
  • silence, noise floor, hiss, hum, or electrical artifacts
  • dynamics, peak level, RMS, LUFS, or dynamic range
  • stereo phase, stereo width, or channel imbalance
  • audio repair and quality diagnosis
  • microsonic events, grains, bursts, pulses, or discontinuities
  • forensic caution when technical evidence is needed

Core Question

What can be technically observed, measured, or instrumentally rendered before interpretation begins?

Conceptual Refinements

  • Treat waveform, spectrogram, metadata, and model features as technical representations, not direct sonic truth.
  • Keep measured for verified inspection only; perceptual description belongs in heard, and production/source guesses belong in inferred.
  • Separate compression as data reduction from dynamic range compression; name which meaning is intended.
  • For machine-listening, ASR, classifier, embedding, or neural-codec outputs, describe the system's representation rather than claiming the system hears.
  • A sonic effect may involve signal, space, listener, and context; do not reduce spatial or cultural effects to waveform traits alone.

Input Assumptions

This skill works best with:

  • audio files
  • file metadata
  • waveform data
  • spectrogram data
  • signal analysis output
  • machine-listening or classifier output
  • codec, platform, or model metadata
  • technical descriptions of audio

Read the full file on GitHub · 147 lines

Files

What ships with it

7 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 · 147 lines · 138 tokens per session scan A a5ea7faf4650

Subscribe to this mod's changes

signal-inspection-listening is a skill published in the GitHub repository sonicfieldlabs/akouo (10 stars, last pushed 1mo ago), licensed MIT. It adds 138 tokens to every session and 2,022 once invoked, about $0.0007 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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