acceptance-criteria-writing

acceptance-criteria-writing is a skill for Claude Code from aigentive/RalphX. It costs 15 tokens per session (648 once invoked), scanned A, original, Apache-2.0.

A guide for turning task descriptions into acceptance criteria: clear statements that define when work is complete and can be checked.

In plain words
What is it for?
Use it to write testable requirements for visible elements, user interactions, responsive behavior, animations, forms, drag-and-drop actions, and keyboard navigation.
Why use it?
It replaces vague requirements such as “the UI looks nice” with specific pass-or-fail conditions for appearance and behavior.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the ralphx plugin — 15 skills shipped together

Good fit Use it to write testable requirements for visible elements, user interactions, responsive behavior, animations, forms, drag-and-drop actions, and keyboard navigation.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/aigentive/ralphx/acceptance-criteria-writing
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add aigentive/RalphX --skill acceptance-criteria-writing
Clone the repo
git clone --depth 1 https://github.com/aigentive/RalphX

Made for: Claude Code.

Or install ralphx, the plugin that ships this one along with the rest of its 15 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for acceptance-criteria-writing

README.md
[![agentmods](https://agentmods.dev/badge/skills/aigentive/ralphx/acceptance-criteria-writing/github.svg)](https://agentmods.dev/skills/aigentive/ralphx/acceptance-criteria-writing)
Your own site
<a href="https://agentmods.dev/skills/aigentive/ralphx/acceptance-criteria-writing"><img src="https://agentmods.dev/badge/skills/aigentive/ralphx/acceptance-criteria-writing/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for acceptance-criteria-writing

Your own site · 80×15
<a href="https://agentmods.dev/skills/aigentive/ralphx/acceptance-criteria-writing"><img src="https://agentmods.dev/badge/skills/aigentive/ralphx/acceptance-criteria-writing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 15 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 648 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00015 $0.00648
Opus 5 $0.00008 $0.00324
Sonnet 5 $0.00003 $0.00130
Haiku 4.5 $0.00002 $0.00065

Measured 9d ago against content hash 1f6893f338d4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

acceptance-criteria-writing scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/app/skills/acceptance-criteria-writing/SKILL.md · 120 lines

How it starts

The opening of the file, as written. The whole thing — 120 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Acceptance Criteria Writing

Guidelines for generating clear, testable acceptance criteria from task specifications.

What Makes Good Acceptance Criteria

SMART Criteria

  • Specific: Describes exactly what should happen
  • Measurable: Has a clear pass/fail condition
  • Achievable: Can be implemented as specified
  • Relevant: Directly relates to the task
  • Testable: Can be verified with agent-browser

Bad vs Good Examples

Bad: "The UI looks nice" Good: "The task card displays title, status badge, and priority indicator"

Bad: "Performance is acceptable" Good: "Task list loads within 2 seconds for 100 tasks"

Bad: "Drag and drop works" Good: "Dragging a task to the Planned column triggers the planned animation"

Criteria Types

Visual (type: "visual")

UI appearance and layout requirements.

  • Element visibility
  • Layout structure
  • Color/styling (when specified)
  • Responsive behavior

Examples:

  • "Task board displays 7 columns"
  • "Each column has a header with task count"
  • "Task cards show status icon"

Behavior (type: "behavior")

User interaction outcomes.

  • Click actions
  • Form submissions
  • Drag-drop operations
  • Keyboard navigation

Examples:

  • "Clicking a task opens the detail panel"
  • "Submitting form creates new task"
  • "Pressing Escape closes modal"

Data (type: "data")

Data display and accuracy.

  • Correct values displayed
  • Data persistence
  • State synchronization

Examples:

  • "Task title matches input value"
  • "Task count updates after creation"
  • "Status reflects backend state"

Accessibility (type: "accessibility")

A11y requirements.

  • ARIA labels
  • Focus management
  • Screen reader support

Examples:

  • "All interactive elements have aria-labels"
  • "Focus moves to modal when opened"
  • "Tab order follows visual layout"

Output Format

{
  "acceptance_criteria": [
    {
      "id": "AC1",
      "description": "Specific testable statement",
      "testable": true,
      "type": "visual"
    }
  ]
}

Read the full file on GitHub · 120 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 120 lines · 15 tokens per session scan A 1f6893f338d4

Subscribe to this mod's changes

acceptance-criteria-writing is a skill published in the GitHub repository aigentive/RalphX (5 stars, last pushed 2d ago), licensed Apache-2.0. It adds 15 tokens to every session and 648 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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