One design in, one screen per phase out. Each phase file shows everything available by that phase and nothing that isn't, in exactly the positions the approved design already put them — so a phase screen is the real build target for that release, not a redrawing of it. Nothing here is drawn: this is the approved design with the later releases taken out, which is why it can be checked mechanically rather than by eye.
base.html ──┬──► phase-1/base.html only what ships in phase 1
├──► phase-2/base.html phase 1 + phase 2
└──► phase-3/base.html phase 1 + 2 + 3 ( = the base, if phases cover it all )Phase Preview is a community-contributed Claude Code skill in the design-system-ui sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/phase-preview/ and loads when your prompt matches the skill's trigger.
When to invoke it: Use when the user wants a Phase 1 / MVP version of an existing wireframe or mockup, phased or staged screens, a design sliced by release phase or story map, or wants to see what a screen looks like before later features land.
The Phase Preview Claude Code skill is built for product managers, product designers, and cross-functional teams planning, shipping, and measuring product features. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 176,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
mkdir -p ~/.claude/skills/phase-preview curl -L https://claudskills.com/skills/phase-preview/SKILL.md \ -o ~/.claude/skills/phase-preview/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/phase-preview/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/phase-preview/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\phase-preview\SKILL.md on Windows. See the full install guide for step-by-step instructions.
Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →
The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
SKILL.md from the source repository to ~/.claude/skills/phase-preview/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Phase Preview is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Product category. Learn more at /learn/what-is-a-claude-skill/.If you reference this skill in a blog post, paper, or documentation, you can cite it as:
@misc{phase-preview-2026,
author = {Cavalry-Collective},
title = {Phase Preview [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/phase-preview/}
}Grade A · scanned 2026-08-04 — free static scan against the OWASP Agentic Skills Top 10.
No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›
Browse all Product skills in the ClaudSkills registry, or explore these other picks from the same category:
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SKILL.md files, not affiliated with, endorsed by, or sponsored by Anthropic.