redesign-existing-projects

A redesign guide for improving an existing website or app while keeping its current functionality and technology. It reviews the code and design, finds generic patterns, and applies targeted visual changes.

In plain words
What is it for?
Use it to audit and improve typography, spacing, colors, components, and missing interface states in projects using Tailwind, vanilla CSS, styled-components, or other styling methods.
Why use it?
It helps raise visual quality without rewriting the project from scratch or replacing its CSS framework.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/stroland02/sync/redesign-existing-projects
Any agent
npx skills add stroland02/Sync --skill redesign-existing-projects
Clone the repo
git clone --depth 1 https://github.com/stroland02/Sync

Made for: Claude Code, Codex.

Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,332 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00045 $0.03332
Opus 5 $0.00023 $0.01666
Sonnet 5 $0.00009 $0.00666
Haiku 4.5 $0.00005 $0.00333

Measured 3d ago against content hash 98ad3e5b051b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

redesign-existing-projects 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 3d 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.

Origin

This is a copy

100% identical to redesign-existing-projects — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/skills/redesign-existing-projects/SKILL.md · 179 lines

How it starts

The opening of the file, as written. The whole thing — 179 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Redesign Skill

How This Works

When applied to an existing project, follow this sequence:

  1. Scan — Read the codebase. Identify the framework, styling method (Tailwind, vanilla CSS, styled-components, etc.), and current design patterns.
  2. Diagnose — Run through the audit below. List every generic pattern, weak point, and missing state you find.
  3. Fix — Apply targeted upgrades working with the existing stack. Do not rewrite from scratch. Improve what's there.

Design Audit

Typography

Check for these problems and fix them:

  • Browser default fonts or Inter everywhere. Replace with a font that has character. Good options: Geist, Outfit, Cabinet Grotesk, Satoshi. For editorial/creative projects, pair a serif header with a sans-serif body.
  • Headlines lack presence. Increase size for display text, tighten letter-spacing, reduce line-height. Headlines should feel heavy and intentional.
  • Body text too wide. Limit paragraph width to roughly 65 characters. Increase line-height for readability.
  • Only Regular (400) and Bold (700) weights used. Introduce Medium (500) and SemiBold (600) for more subtle hierarchy.
  • Numbers in proportional font. Use a monospace font or enable tabular figures (font-variant-numeric: tabular-nums) for data-heavy interfaces.
  • Missing letter-spacing adjustments. Use negative tracking for large headers, positive tracking for small caps or labels.
  • All-caps subheaders everywhere. Try lowercase italics, sentence case, or small-caps instead.
  • Orphaned words. Single words sitting alone on the last line. Fix with text-wrap: balance or text-wrap: pretty.

Color and Surfaces

  • Pure #000000 background. Replace with off-black, dark charcoal, or tinted dark (#0a0a0a, #121212, or a dark navy).
  • Oversaturated accent colors. Keep saturation below 80%. Desaturate accents so they blend with neutrals instead of screaming.
  • More than one accent color. Pick one. Remove the rest. Consistency beats variety.
  • Mixing warm and cool grays. Stick to one gray family. Tint all grays with a consistent hue (warm or cool, not both).
  • Purple/blue "AI gradient" aesthetic. This is the most common AI design fingerprint. Replace with neutral bases and a single, considered accent.
  • Generic box-shadow. Tint shadows to match the background hue. Use colored shadows (e.g., dark blue shadow on a blue background) instead of pure black at low opacity.
  • Flat design with zero texture. Add subtle noise, grain, or micro-patterns to backgrounds. Pure flat vectors feel sterile.
  • Perfectly even gradients. Break the uniformity with radial gradients, noise overlays, or mesh gradients instead of standard linear 45-degree fades.
  • Inconsistent lighting direction. Audit all shadows to ensure they suggest a single, consistent light source.
  • Random dark sections in a light mode page (or vice versa). A single dark-background section breaking an otherwise light page looks like a copy-paste accident. Either commit to a full dark mode or keep a consistent background tone throughout. If contrast is needed, use a slightly darker shade of the same palette — not a sudden jump to #111 in the middle of a cream page.
  • Empty, flat sections with no visual depth. Sections that are just text on a plain background feel unfinished. Add high-quality background imagery (blurred, overlaid, or masked), subtle patterns, or ambient gradients. Use reliable placeholder sources like https://picsum.photos/seed/{name}/1920/1080 when real assets are not available. Experiment with background images behind hero sections, feature blocks, or CTAs — even a subtle full-width photo at low opacity adds presence.

Read the full file on GitHub · 179 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. 3d ago First seen · 179 lines · 45 tokens per session scan A 98ad3e5b051b

Subscribe to this mod's changes

redesign-existing-projects is a skill published in the GitHub repository stroland02/Sync (5 stars, last pushed 7d ago), licensed Apache-2.0. It adds 45 tokens to every session and 3,332 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to redesign-existing-projects, differing in 0 lines, and is treated as a copy.

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