Claude Code Skills·Claude Skills·The open SKILL.md registry for Claude
ClaudSkills / Engineering / engineering-misc

Reproduction First

Category: Engineering  ·  Sub-category: engineering-misc  ·  Last updated:
Build a reliable, minimal reproduction before you write a fix so you can prove the bug is actually gone. Use when a report is vague, intermittent, or "works on my machine" and you need solid ground under the debugging.
Security AStatic scan found no risk patternsHow grading works ›

From the source SKILL.md

A fix with no reproduction is a wish. You change a line, the symptom is absent this run, and you never learn whether you fixed the defect or merely failed to provoke it. A repro that fails on command turns debugging into a loop with a red light that you drive to green: build that light before you touch anything.

What this skill does

Reproduction First is a community-contributed Claude Code skill in the engineering-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/reproduction-first/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when a report is vague, intermittent, or "works on my machine" and you need solid ground under the debugging.

Who uses this skill

The Reproduction First 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 158,000+ 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/reproduction-first
curl -L https://claudskills.com/skills/reproduction-first/SKILL.md \
  -o ~/.claude/skills/reproduction-first/SKILL.md

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

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

Telegram

📱 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 Reproduction First Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/reproduction-first/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Reproduction First skill do?
Build a reliable, minimal reproduction before you write a fix so you can prove the bug is actually gone. Use when a report is vague, intermittent, or "works on my machine" and you need solid ground under the debugging.
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 Reproduction First skill?
Use Reproduction First when your Claude Code task falls under the Engineering category — specifically in the engineering misc 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 Reproduction First" or describe the task and let Claude pick). Browse related skills at /category/engineering/.
What is a Claude Code skill and how does the Reproduction First 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. Reproduction First 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
Amey-Thakur. (2026). Reproduction First [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/reproduction-first/
BibTeX
@misc{reproduction-first-2026,
  author    = {Amey-Thakur},
  title     = {Reproduction First [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/reproduction-first/}
}

Embed this skill

Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →

Badge
[![ClaudSkills](https://claudskills.com/badge/reproduction-first.svg)](https://claudskills.com/skills/reproduction-first/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)
<script>
<script src="https://claudskills.com/embed/reproduction-first.js" async></script>
<iframe>
<iframe src="https://claudskills.com/embed/reproduction-first.html" width="100%" height="160" frameborder="0" loading="lazy" title="ClaudSkills: Reproduction First"></iframe>

Security scan

Grade A · scanned 2026-07-23 — 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 ›

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

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

Free. No spam. Unsubscribe in one click.

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

Part of Acreator Store — Adam Lankamer's AI tools: PerfectStudio · Ucaption · UTagger · AutoXPoster · TestYourSkills · AutomationFlows · Au Naturel · Telegram @acreatorstore

Categories

Use cases

Popular tags

Learn

Site