dfmea-design

dfmea-design is a skill for Claude Code, Codex from RBraga01/Quality-Engineering-Skills. It costs 79 tokens per session (2,518 once invoked), scanned A, original, MIT.

A Design FMEA worksheet and workflow for finding risks in a product's design before manufacturing. FMEA means Failure Mode and Effects Analysis: a structured review of how a design could fail, why, and with what effect.

In plain words
What is it for?
Use it during new product development, design changes, or investigations of field failures to analyse functions, interfaces, failure causes, and risk-reduction actions.
Why use it?
It helps teams find design weaknesses early and connect the findings to verification plans and manufacturing controls.

Skill for Claude CodeCodex

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

Good fit Use it during new product development, design changes, or investigations of field failures to analyse functions, interfaces, failure causes, and risk-reduction actions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/rbraga01/quality-engineering-skills/dfmea-design
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 RBraga01/Quality-Engineering-Skills --skill dfmea-design
Clone the repo
git clone --depth 1 https://github.com/RBraga01/Quality-Engineering-Skills

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 dfmea-design

README.md
[![agentmods](https://agentmods.dev/badge/skills/rbraga01/quality-engineering-skills/dfmea-design/github.svg)](https://agentmods.dev/skills/rbraga01/quality-engineering-skills/dfmea-design)
Your own site
<a href="https://agentmods.dev/skills/rbraga01/quality-engineering-skills/dfmea-design"><img src="https://agentmods.dev/badge/skills/rbraga01/quality-engineering-skills/dfmea-design/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 dfmea-design

Your own site · 80×15
<a href="https://agentmods.dev/skills/rbraga01/quality-engineering-skills/dfmea-design"><img src="https://agentmods.dev/badge/skills/rbraga01/quality-engineering-skills/dfmea-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 79 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,518 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 2 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 112
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
  • medium Excessive Agency · line 177
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
How audits are shown
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 $0.00079 $0.02518
Opus 5 $0.00039 $0.01259
Sonnet 5 $0.00016 $0.00504
Haiku 4.5 $0.00008 $0.00252

Measured 11d ago against content hash 4f41212eae69, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

dfmea-design 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 11d 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.

skills/risk-analysis/dfmea-design/SKILL.md · 241 lines

How it starts

The opening of the file, as written. The whole thing — 241 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Design FMEA (DFMEA) — AIAG-VDA 2019

Goal

Identify and mitigate design risks by analysing functions, interfaces, and failure modes — so that design weaknesses are resolved before release to manufacturing, and the results feed directly into the DVP, PFMEA, and Control Plan.

Required Execution Checklist

  • DFMEA scope defined: boundary diagram complete, inside/outside boundary identified
  • Product hierarchy mapped: system → subsystem → component → interface (Step 2)
  • All interfaces identified — internal (component-to-component), external (environment), and user/assembly
  • All functions defined with Verb + Noun + Measurable Standard (Step 3)
  • Each function has a measurable verification method confirmed in the DVP
  • Failure chain complete: Effect → Mode → Cause for each function (Step 4)
  • All Failure Causes validated using engineering analysis (FEA, calculation) or test evidence — not assumptions
  • S/O/D ratings justified using analysis, test data, or design history
  • All H-AP items have a defined action, named owner, and target date
  • DFMEA → DVP, PFMEA, and drawing linkage verified before release to manufacturing

When to use

  • New product development (integrate into APQP Phase 2 — Product Design and Development)
  • Design change or engineering change request (ECR)
  • Field failure investigation revealing a design root cause
  • Periodic design review
  • Before handoff to manufacturing (DFMEA drives the PFMEA)

Key difference from PFMEA: DFMEA analyses the design intent and design robustness. PFMEA analyses the manufacturing process. DFMEA comes first — its failure effects and severity ratings inform the PFMEA.

Prerequisites

  • Product requirements / specification (engineering drawing, customer spec)
  • System block diagram or product breakdown structure
  • Interface matrix (if system-level analysis)
  • Team: design engineer, systems engineer, quality engineer, reliability (if available)

The 7-Step AIAG-VDA 2019 Approach for DFMEA

Read the full file on GitHub · 241 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 11d ago First seen · 241 lines · 79 tokens per session scan A 4f41212eae69

Subscribe to this mod's changes

dfmea-design is a skill published in the GitHub repository RBraga01/Quality-Engineering-Skills (28 stars, last pushed yesterday), licensed MIT. It adds 79 tokens to every session and 2,518 once invoked, about $0.0004 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 2026-08-30.

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