ClaudSkills / Engineering / code-quality

Membrana Usercase Lessons

Q: What is a Claude Code skill and how does the Membrana Usercase Lessons skill fit in?

A Claude Code skill is a 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. Membrana Usercase Lessons is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Engineering · Sub-category: code-quality · Last updated: 2026-08-12

UserCase lessons journal: read docs/actions/device-board/USERCASE_COMPETITION_LESSONS.md BEFORE building/forking/packing any device-board UserCase scenario; log every live-Run finding as an L-entry (симптом→корень→фикс→профилактика) DURING debug, not after. Use when building a scenario, debugging a Run that «не заработал», running the live-Run checklist before owner sign-off, or when user says журнал ошибок, L-запись, недочёты сценария. Do NOT use for log parsing mechanics (membrana-client-logs-parsing) or PR review (membrana-code-review).

Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

Canonical: [.cursor/skills/membrana-usercase-lessons/SKILL.md](../../.cursor/skills/membrana-usercase-lessons/SKILL.md)

What this skill does

Membrana Usercase Lessons is a community-contributed Claude Code skill in the code-quality sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/membrana-usercase-lessons/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when building a scenario, debugging a Run that «не заработал», running the live-Run checklist before owner sign-off, or when user says журнал ошибок, L-запись, недочёты сценария. Do NOT use for log parsing mechanics (membrana-client-logs-parsing) or PR review (membrana-code-review).

Who uses this skill

The Membrana Usercase Lessons Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 184,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/membrana-usercase-lessons
curl -L https://claudskills.com/skills/membrana-usercase-lessons/SKILL.md \
  -o ~/.claude/skills/membrana-usercase-lessons/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/membrana-usercase-lessons/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/membrana-usercase-lessons/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\membrana-usercase-lessons\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

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 →

Pro

One-click install via the desktop app

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.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Membrana Usercase Lessons Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/membrana-usercase-lessons/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Membrana Usercase Lessons skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Membrana Usercase Lessons skill?

Use Membrana Usercase Lessons when your Claude Code task falls under the Engineering category — specifically in the code quality area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Membrana Usercase Lessons" or describe the task and let Claude pick). Browse related skills at /category/engineering/.

What is a Claude Code skill and how does the Membrana Usercase Lessons skill fit in?

A Claude Code skill is a 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. Membrana Usercase Lessons is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

officefish. (2026). Membrana Usercase Lessons [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/membrana-usercase-lessons/

BibTeX

@misc{membrana-usercase-lessons-2026,
  author    = {officefish},
  title     = {Membrana Usercase Lessons [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/membrana-usercase-lessons/}
}

Embed this skill

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Badge

[![ClaudSkills](https://claudskills.com/badge/membrana-usercase-lessons.svg)](https://claudskills.com/skills/membrana-usercase-lessons/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

Security scan

Grade A · scanned 2026-08-12 — free static scan against the OWASP Agentic Skills Top 10.

The scan flagged 1 of 10 categories (filesystem), including lower-severity patterns. Patterns shown inside code fences are weighted as examples rather than instructions — read the grading methodology for what this does and does not guarantee.

✓ Prompt injection
✓ Data exfiltration
✓ Supply chain
✓ Reverse shell
✓ Credentials
✓ Execution
⚠ Filesystem
✓ Persistence
✓ Obfuscation
✓ Network

Show this grade on your repo (click to copy):

[![Security: A](https://img.shields.io/badge/Security-A-2e7d32)](https://claudskills.com/skills/membrana-usercase-lessons/#security)

More Engineering skills

Browse all Engineering skills in the ClaudSkills registry, or explore these other picks from the same category:

Browse all Engineering skills → Top 100 skills

Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

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