Agent skill

Vibe Requirements Validator

by ash1794 in ash1794/vibe-engineering

Validates PRD, user stories, or feature requirements against SMART criteria.

MITAuto-check passedProduct & Project Management

Install Vibe Requirements Validator

skills CLI
$ npx skills add ash1794/vibe-engineering --skill vibe-requirements-validator -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install ash1794/vibe-engineering vibe-requirements-validator --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/ash1794/vibe-engineering.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/vibe-engineering/skills/vibe-requirements-validator .claude/skills/vibe-requirements-validator && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
vibe-requirements-validator
GitHub stars
163
Token cost
~558 tokens
SKILL.md length
257 words
Files
1
Skills in repo
33
Repo updated
First seen
Licence
MIT

At a glance

Validates PRD, user stories, or feature requirements against SMART criteria.

  • Works in 4 steps: List all requirements from the document → Score each on SMART (1-5 per dimension) → Flag issues → …
  • Reviewing requirements to catch vagueness before it causes expensive rework
  • SKILL.md covers When to Use This Skill, When NOT to Use This Skill, SMART Criteria and Steps, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Vibe Requirements Validator is an agent skill from ash1794/vibe-engineering. Validates PRD, user stories, or feature requirements against SMART criteria. Use when reviewing requirements to catch vagueness before it causes expensive rework.

Its SKILL.md is about 560 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Product & Project Management, covering User stories and PRD writing. The repository describes itself as: 33 engineering discipline skills for Claude Code, OpenAI Codex & Gemini CLI + a CLI for CI/CD enforcement. Extracted from real-world multi-agent system development. Born from… The licence is MIT.

When your agent uses it

  • Reviewing requirements to catch vagueness before it causes expensive rework
  • Tasks that involve User stories
  • Tasks that involve PRD writing

Example prompts

  • “Use the vibe-requirements-validator skill to validate PRD, user stories, or feature requirements against SMART criteria”
  • “/vibe-requirements-validator”

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. List all requirements from the document
  2. Score each on SMART (1-5 per dimension)
  3. Flag issues
  4. Report

What it can do on your machine

Read from SKILL.md and the folder at commit 8f1d71b. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Vibe Requirements Validator loads about 558 tokens when it runs. Until then it costs about 48 tokens; SKILL.md has 257 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~48
When it runs · the whole SKILL.md, loaded when a task matches
~558

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from ash1794/vibe-engineering at commit 8f1d71b, republished under its MIT licence (© ash1794). 257 words, ~558 tokens.

Download SKILL.mdSave it as .claude/skills/vibe-requirements-validator/SKILL.md (or your agent's skills folder).
name
vibe-requirements-validator
description
Validates PRD, user stories, or feature requirements against SMART criteria. Use when reviewing requirements to catch vagueness before it causes expensive rework.
user-invocable
true

vibe-requirements-validator

Vague requirements cause expensive rework. Catch them early.

When to Use This Skill

  • Reviewing a PRD or feature spec before implementation
  • Writing acceptance criteria for user stories
  • When you notice requirements like "make it fast" or "improve UX"
  • Before estimating effort for a feature

When NOT to Use This Skill

  • Internal technical tasks with clear scope
  • Bug fixes (the bug IS the requirement)
  • When requirements are already validated and approved

SMART Criteria

Score each requirement 1-5 on:

  • Specific — Is it clear what exactly needs to be built? (Not "improve performance" but "reduce P95 latency to <200ms")
  • Measurable — Can you objectively verify it's done? (Not "users like it" but "NPS score >40")
  • Achievable — Can it be built with available resources and constraints?
  • Relevant — Does it align with project goals and user needs?
  • Time-bound — Is there a clear scope boundary? (Not "eventually" but "in v1.0")

Steps

  1. List all requirements from the document

  2. Score each on SMART (1-5 per dimension)

  3. Flag issues:

    • Score < 3 on any dimension → needs revision
    • Measurability < 3 → most common failure, flag prominently
    • Near-duplicates → consolidate
    • Positioning statements masquerading as requirements → remove
  4. Report:

Output Format

Requirements Validation: [Document Name]

Total Requirements: X Passing (avg >= 3.5): Y (Z%) Flagged: W

IDRequirementSMARTAvgIssue
FR-1"..."425433.6Low measurability
Top Issues
  1. Measurability crisis — X requirements have M < 3
  2. Near-duplicates — [list pairs]
  3. Not requirements — [positioning statements]
IDCurrentSuggested
FR-3"Improve load time""Reduce initial page load to <2s on 3G"

© ash1794, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in plugins/vibe-engineering/skills/vibe-requirements-validator of ash1794/vibe-engineering.

Open the folder on GitHubat commit 8f1d71b

Compare with similar skills

Vibe Requirements Validator next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Vibe Requirements Validator compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Vibe Requirements Validator this skillash1794/vibe-engineering163—~558Automated safety check: PassMIT
Ralph Tui Create Beadssubsy/ralph-tui2.5k1 repos~2.6kAutomated safety check: PassMIT
Ralph Tui Create Beads Rustsubsy/ralph-tui2.5k1 repos~2.8kAutomated safety check: PassMIT
Ralph Tui Create JSONsubsy/ralph-tui2.5k1 repos~2.6kAutomated safety check: PassMIT
To Prdywwynm/EverythingDone14411 repos~777Automated safety check: PassGPL-3.0
Use Case Writerphucnt-bazone-vietnam/use-case-writer143—~4.1kAutomated safety check: PassMIT

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  • Vibe Parallel Task Decomposition

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  • Vibe Slop Filter

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Questions about Vibe Requirements Validator

What does Vibe Requirements Validator do?

Validates PRD, user stories, or feature requirements against SMART criteria. Vibe Requirements Validator is an agent skill from ash1794/vibe-engineering. Validates PRD, user stories, or feature requirements against SMART criteria.

When should I use Vibe Requirements Validator?

Vibe Requirements Validator fits situations like: reviewing requirements to catch vagueness before it causes expensive rework; tasks that involve User stories; tasks that involve PRD writing.

How do I install Vibe Requirements Validator in Claude Code?

Run `npx skills add ash1794/vibe-engineering --skill vibe-requirements-validator -a claude-code`. Or copy the skill folder (plugins/vibe-engineering/skills/vibe-requirements-validator in ash1794/vibe-engineering) into .claude/skills/vibe-requirements-validator in your project. Claude Code loads it when a task matches its description.

How do I install Vibe Requirements Validator in Codex?

Run `npx skills add ash1794/vibe-engineering --skill vibe-requirements-validator -a codex`. Or copy the skill folder (plugins/vibe-engineering/skills/vibe-requirements-validator in ash1794/vibe-engineering) into .agents/skills/vibe-requirements-validator in your project. Codex loads it when a task matches its description.

Can I use Vibe Requirements Validator in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add ash1794/vibe-engineering --skill vibe-requirements-validator -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/vibe-requirements-validator, .gemini/skills/vibe-requirements-validator, .github/skills/vibe-requirements-validator and .opencode/skills/vibe-requirements-validator in your project.

What does Vibe Requirements Validator need to run?

SKILL.md names no scripts, command-line tools or credentials: Vibe Requirements Validator is instructions for the agent only.

Does Vibe Requirements Validator access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Vibe Requirements Validator safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Vibe Requirements Validator use?

Vibe Requirements Validator is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Vibe Requirements Validator use?

About 558 tokens (SKILL.md is roughly 2.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Vibe Requirements Validator?

Skills that share tags, products or a category with Vibe Requirements Validator: Ralph Tui Create Beads (subsy/ralph-tui, 2.5k stars), Ralph Tui Create Beads Rust (subsy/ralph-tui, 2.5k stars), Ralph Tui Create JSON (subsy/ralph-tui, 2.5k stars) and To Prd (ywwynm/EverythingDone, 144 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Vibe Requirements Validator?

ash1794 (a GitHub user) maintains it in ash1794/vibe-engineering, which has 163 GitHub stars. The repository holds 33 skills in this directory. The repository was last updated on October 7, 2026.

Source: ash1794/vibe-engineering on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.