sound-design-film

sound-design-film is a skill for Claude Code, Codex from guia-matthieu/clawfu-skills. It costs 71 tokens per session (4,252 once invoked), scanned A, original, MIT.

Guidance for designing sound for films, documentaries, and marketing videos, based on Walter Murch's approach. It covers music, effects, voice, and layered soundscapes as parts of the story.

In plain words
What is it for?
Use it when planning audio for a video, combining music and effects, shaping a soundscape, or improving the emotional effect of visual content.
Why use it?
It helps make video feel more immersive and emotionally clear by treating sound as part of the experience, not just background audio. It also helps balance technical choices with the intended feeling.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Good fit Use it when planning audio for a video, combining music and effects, shaping a soundscape, or improving the emotional effect of visual content.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/guia-matthieu/clawfu-skills/sound-design-film
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 guia-matthieu/clawfu-skills --skill sound-design-film
Clone the repo
git clone --depth 1 https://github.com/guia-matthieu/clawfu-skills

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 sound-design-film

README.md
[![agentmods](https://agentmods.dev/badge/skills/guia-matthieu/clawfu-skills/sound-design-film/github.svg)](https://agentmods.dev/skills/guia-matthieu/clawfu-skills/sound-design-film)
Your own site
<a href="https://agentmods.dev/skills/guia-matthieu/clawfu-skills/sound-design-film"><img src="https://agentmods.dev/badge/skills/guia-matthieu/clawfu-skills/sound-design-film/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 sound-design-film

Your own site · 80×15
<a href="https://agentmods.dev/skills/guia-matthieu/clawfu-skills/sound-design-film"><img src="https://agentmods.dev/badge/skills/guia-matthieu/clawfu-skills/sound-design-film.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 71 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,252 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. Third-party audits
  • Socket pass 18 Mar 2026
  • Snyk pass 13 Feb 2026
How audits are shown
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 $0.00071 $0.04252
Opus 5 $0.00036 $0.02126
Sonnet 5 $0.00014 $0.00850
Haiku 4.5 $0.00007 $0.00425

Measured 13d ago against content hash 0c4d1a6ae779, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

sound-design-film 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 13d 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/audio/sound-design-film/SKILL.md · 633 lines

How it starts

The opening of the file, as written. The whole thing — 633 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Sound Design (Murch Method)

Apply Walter Murch's legendary film sound principles to marketing video, creating emotionally resonant audio that audiences feel without consciously noticing.

When to Use This Skill

  • Designing sound for brand films and documentaries
  • Creating emotional impact in video ads
  • Layering music, effects, and voice effectively
  • Building immersive soundscapes for content
  • Elevating production value through audio
  • Understanding why certain videos "feel" professional

Methodology Foundation

Source: Walter Murch - Sound Designer, 3x Oscar Winner (Apocalypse Now, The English Patient)

Core Principle: "Sound is a passport-free traveler—it sneaks under the radar and creates emotional effects that audiences attribute to the visuals." Great sound design is invisible; viewers feel it but don't consciously notice it. The goal is emotional truth, not technical perfection.

Why This Matters: Most marketers focus 90% on visuals and 10% on audio, when audio carries 50% of the emotional impact. Murch's principles, developed over 50+ years of filmmaking, transform ordinary video into compelling experiences.

What Claude Does vs What You Decide

Claude Does You Decide
Structures production workflow Final creative direction
Suggests technical approaches Equipment and tool choices
Creates templates and checklists Quality standards
Identifies best practices Brand/voice decisions
Generates script outlines Final script approval

What This Skill Does

  1. Prioritizes sound elements - The correct hierarchy: dialogue → story sounds → music → effects → foley
  2. Applies the Law of Two and a Half - Strategic layering for maximum impact
  3. Creates authentic space - Worldizing technique for believable environments
  4. Designs emotional arcs - Sound that supports narrative without calling attention to itself
  5. Balances clarity and richness - Clean enough to understand, complex enough to feel real

Read the full file on GitHub · 633 lines

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. 13d ago First seen · 633 lines · 71 tokens per session scan A 0c4d1a6ae779

Subscribe to this mod's changes

sound-design-film is a skill published in the GitHub repository guia-matthieu/clawfu-skills (149 stars, last pushed 5mo ago), licensed MIT. It adds 71 tokens to every session and 4,252 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 2026-08-30.

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