design-reduction

design-reduction is a skill for Claude Code, Codex from Wondermonger-daydreaming/claude-skills-library. It costs 214 tokens per session (1,214 once invoked), scanned A, original, MIT.

A design and thinking method that removes nonessential parts until only the core purpose remains.

In plain words
What is it for?
Use it to simplify a concept, interface, written argument, or other artifact through repeated removal and review.
Why use it?
It helps turn cluttered ideas, designs, and arguments into clearer results by focusing on what truly matters.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to simplify a concept, interface, written argument, or other artifact through repeated removal and review.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/wondermonger-daydreaming/claude-skills-library/design-reduction
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 Wondermonger-daydreaming/claude-skills-library --skill design-reduction
Clone the repo
git clone --depth 1 https://github.com/Wondermonger-daydreaming/claude-skills-library

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 design-reduction

README.md
[![agentmods](https://agentmods.dev/badge/skills/wondermonger-daydreaming/claude-skills-library/design-reduction/github.svg)](https://agentmods.dev/skills/wondermonger-daydreaming/claude-skills-library/design-reduction)
Your own site
<a href="https://agentmods.dev/skills/wondermonger-daydreaming/claude-skills-library/design-reduction"><img src="https://agentmods.dev/badge/skills/wondermonger-daydreaming/claude-skills-library/design-reduction/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 design-reduction

Your own site · 80×15
<a href="https://agentmods.dev/skills/wondermonger-daydreaming/claude-skills-library/design-reduction"><img src="https://agentmods.dev/badge/skills/wondermonger-daydreaming/claude-skills-library/design-reduction.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 214 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,214 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 $0.00214 $0.01214
Opus 5 $0.00107 $0.00607
Sonnet 5 $0.00043 $0.00243
Haiku 4.5 $0.00021 $0.00121

Measured 12d ago against content hash c4ef080484ed, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

design-reduction 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/design-reduction/SKILL.md · 48 lines

How it starts

The opening of the file, as written. The whole thing — 48 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Design Reduction

Seed, not scripture

The source frames this through three named designers and a famous failure-count. The names and the number are mnemonics, not authorities. Don't invoke "as [designer] said" or recite the failure tally as proof — that's borrowing prestige instead of doing the work. What transfers is the method: three movements and one test, runnable on any artifact. Strip the attribution; keep the cut.

What it is

Reduction not as impoverishment but as concentration — removing everything that isn't load-bearing until what remains feels inevitable, as though it had always existed and you merely uncovered it. This is the compressive complement to /inventor-stance: where that pole proliferates, exapts, and courts new functions, this pole strips, cuts, and clarifies. Real making oscillates between the two — invent wide, then reduce hard.

The three movements

  • Revelation. Subtraction as unveiling: remove until only the essence shows. The aim is the object that feels pre-existing, that no longer looks designed because it looks necessary. The void shapes the solid — what you take away does as much work as what you leave.
  • Failure-iteration. Reduction is rarely found in one pass; it's crashed into. Smash the prototype, read the error log as propulsion, let each failure teach the topology of the impossible until the working form emerges from the debris. Catastrophe as catalyst — but only if the failure returns information.
  • Concentration. Every deletion amplifies what remains; the surviving elements carry the weight of the murdered alternatives. Density is honesty: the more you compress without loss, the more each element has to mean. Minimalism here is not less — it is more, per unit.

The method and the test

The loop: see the problem clearly (what actually needs doing?), remove everything in the way (what is obstruction rather than essence?), iterate until obvious (what works so plainly it needs no defense?). Apply across media — in prose every word either solves or disappears; in code, complexity serves clarity not cleverness; in argument, each claim earns its keep or goes.

Read the full file on GitHub · 48 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. 12d ago First seen · 48 lines · 214 tokens per session scan A c4ef080484ed

Subscribe to this mod's changes

design-reduction is a skill published in the GitHub repository Wondermonger-daydreaming/claude-skills-library (6 stars, last pushed 2mo ago), licensed MIT. It adds 214 tokens to every session and 1,214 once invoked, about $0.0011 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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