Parse Dont Validate

Q: What is a Claude Code skill and how does the Parse Dont Validate 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. Parse Dont Validate 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: languages · Last updated: 2026-06-13

lang:typescript

「Parse, don't validate」原則に基づくコードレビューと設計支援。validateパターン（チェックして結果を捨てる）をparseパターン（チェック結果を型で保持）に変換し、型システムで不変式を強制する設計を促進する。コードレビュー、新規実装、リファクタリング時にvalidation関数の改善が必要な場合に使用。対象言語: Rust, Haskell, TypeScript, Scala, Java, Go, Python。トリガー：「バリデーションを改善して」「型で保証したい」「shotgun parsingを直して」「不正な状態を型で防ぎたい」「Maybeを減らしたい」といった型安全性関連リクエストで起動。

From the source SKILL.md

情報を捨てるvalidationから、情報を保持するparsingへ変換する。

What this skill does

Parse Dont Validate is a community-contributed Claude Code skill in the languages sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/parse-dont-validate/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Parse Dont Validate 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 116,000+ 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/parse-dont-validate
curl -L https://claudskills.com/skills/parse-dont-validate/SKILL.md \
  -o ~/.claude/skills/parse-dont-validate/SKILL.md

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

Skills live at ~/.claude/skills/parse-dont-validate/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\parse-dont-validate\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 Parse Dont Validate Claude Code skill?

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

What does the Parse Dont Validate 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 Parse Dont Validate skill?

Use Parse Dont Validate when your Claude Code task falls under the Engineering category — specifically in the languages 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 Parse Dont Validate" or describe the task and let Claude pick). Browse related skills at /category/engineering/.

What is a Claude Code skill and how does the Parse Dont Validate 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. Parse Dont Validate 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

Source: https://github.com/j5ik2o/okite-ai/blob/f1bc1c37831cbe5ea6a9da5e8f828e639a143e32/skills/parse-dont-validate/SKILL.md
License: MIT
Author: j5ik2o

Cite this skill

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

APA

j5ik2o. (2026). Parse Dont Validate [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/parse-dont-validate/

BibTeX

@misc{parse-dont-validate-2026,
  author    = {j5ik2o},
  title     = {Parse Dont Validate [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/parse-dont-validate/}
}

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Badge

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