ring:validating-acceptance-criteria

ring:validating-acceptance-criteria is a skill for Claude Code, Codex from LerianStudio/ring. It costs 100 tokens per session (816 once invoked), scanned A, original, Apache-2.0.

A completion check that compares a finished coding task with its acceptance criteria, meaning the specific conditions the work must satisfy.

In plain words
What is it for?
Use it after implementation and tests to map each requirement to evidence and request sign-off before completion.
Why use it?
It prevents a task from being marked complete without evidence or approval from the user or another reviewer.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

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.

agentmods
npx agentmods add skills/lerianstudio/ring/validating-acceptance-criteria
Any agent
npx skills add LerianStudio/ring --skill validating-acceptance-criteria
Clone the repo
git clone --depth 1 https://github.com/LerianStudio/ring

Made for: Claude Code, Codex.

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 ring:validating-acceptance-criteria

README.md
[![agentmods](https://agentmods.dev/badge/skills/lerianstudio/ring/validating-acceptance-criteria.svg)](https://agentmods.dev/skills/lerianstudio/ring/validating-acceptance-criteria)
Your own site
<a href="https://agentmods.dev/skills/lerianstudio/ring/validating-acceptance-criteria"><img src="https://agentmods.dev/badge/skills/lerianstudio/ring/validating-acceptance-criteria.svg" alt="Measured on agentmods" height="20"></a>
Per session 100 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 816 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00100 $0.00816
Opus 5 $0.00050 $0.00408
Sonnet 5 $0.00020 $0.00163
Haiku 4.5 $0.00010 $0.00082

Measured 3d ago against content hash 2d0933cdeeae, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

ring:validating-acceptance-criteria 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 3d 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.

dev-team/skills/validating-acceptance-criteria/SKILL.md · 112 lines

How it starts

The opening of the file, as written. The whole thing — 112 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Validation Gate (Gate 5)

When to use

  • After review gate passes (Gate 4)
  • Implementation and tests complete
  • Need user sign-off on acceptance criteria

Skip when

  • Not inside a development cycle (ring:running-dev-cycle or ring:running-dev-cycle-frontend)
  • Task is documentation-only, configuration-only, or non-code
  • No implementation or tests were produced

Sequence

Runs after: ring:reviewing-code

Complementary: ring:running-dev-cycle, ring:reviewing-code

Validates acceptance criteria and requires explicit user approval.

Self-approval PROHIBITED. If you implemented the code, you CANNOT approve it. Wait for user or different reviewer.

Approval Authority

Who Can Approve?
User (original requester) ✅ YES
Different agent/human ✅ YES
Same agent that implemented ❌ NO — self-approval prohibited

Step 1: Build Validation Report

Map each acceptance criterion to evidence (tests, PRs, manual verification):

## Validation Results

| AC # | Criterion | Evidence | Status | Severity |
|------|-----------|----------|--------|----------|
| AC-1 | {criterion} | {tests pass / file:line / manual} | MET / NOT MET / PARTIAL | - / HIGH / MEDIUM / LOW |

Severity calibration:

  • CRITICAL: acceptance criterion completely unmet
  • HIGH: criterion partially met or performance degraded
  • MEDIUM: edge case or non-critical gap (main path works)
  • LOW: code works but quality suboptimal

Step 2: Present to User

## Gate 5: Validation

### Summary
- Task: {unit_id}
- ACs: {N}/{total} met
- Recommendation: APPROVED / REJECTED

### Validation Table
{validation_table from Step 1}

### Issues (if any)
| Severity | AC # | Description | Recommendation |
|----------|------|-------------|----------------|

### Decision Required
Reply with one of:
- APPROVED — proceed to completion
- REJECTED — return to Gate 0 with comments
- FIX {AC#} then APPROVED — fix specific items first

Step 3: Interpret Response

Read the full file on GitHub · 112 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. 3d ago First seen · 112 lines · 100 tokens per session scan A 2d0933cdeeae

Subscribe to this mod's changes

ring:validating-acceptance-criteria is a skill published in the GitHub repository LerianStudio/ring (211 stars, last pushed 17d ago), licensed Apache-2.0. It adds 100 tokens to every session and 816 once invoked, about $0.0005 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 2026-09-03.

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