The deepest moat in our reviewer
Detect the Tier-2 supplier-blame pattern auditors hate — automatically
When a DFMEA cause reads "cell supplier delivers out-of-spec parts," that's not a design-side cause. It's the most-flagged audit failure in AIAG-VDA reviews. In testing, Specwarden's AI caught this pattern 6 out of 6 times — even on rows where we didn't plant it.
How it works
Upload your DFMEA
Drop in your spreadsheet — .xlsx, .xls, .csv, or .docx. Specwarden detects AIAG-RPN or AIAG-VDA format automatically. No configuration.
Review runs in under 60 seconds
7 deterministic rule checks run first, then Claude Sonnet reads every row for supplier-blame causes, vague language, and missing rationale.
Get a report you can act on
Download a PDF or Word report with every finding ranked by severity and a specific fix recommendation. Ready to attach to your design package.
Why Specwarden catches supplier-blame
100%
precision on spontaneous catches
In our 10-fixture eval suite, Specwarden caught Tier-2 supplier-blame on 3 rows we hadn't planted. A senior manufacturing QE rated all 3 catches as correct — zero false positives.
D-001b
a dedicated moat check ID
Supplier-blame detection is not a generic "vague text" check — it's a dedicated rule grounded in AIAG-VDA Handbook §1.4.1 and §2.4, trained on the semantic distinction between design-spec and supplier-execution causes.
Free
on your first 30-row DFMEA
See the supplier-blame catches on your own data. Free tier includes 5 visible findings — if Specwarden catches a D-001b, you'll see it without paying.
How the moat detection works
Tier-1 PFMEA contamination (D-001a)
When a DFMEA row's Failure Mode describes an assembly-line operator error or a manufacturing process step — that's PFMEA scope. Specwarden flags it and suggests the correct reframe.
Tier-2 supplier-blame reframe (D-001b)
A Failure Cause that blames the upstream supplier for delivering bad parts isn't a design cause — it's a procurement and incoming inspection problem. Specwarden identifies the design-specification gap that the cause should be pointing at instead.
Recommended Action reframing
Supplier-blame causes usually lead to weak Recommended Actions ("source from better supplier"). Specwarden flags the action alongside the cause and suggests the design-side corrective (e.g., "add minimum acceptance criterion to the engineering drawing").
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Use-case proof
Designed for FMEA, specs, quality checks, and design review workflows
Beta proof
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Empirical result — Specwarden internal testing
Across 10 hand-authored DFMEA test cases in our evaluation suite, Specwarden spontaneously caught Tier-2 supplier-blame reframes on 3 cases — on rows where we had not specifically planted the pattern. Our internal reviewer (a senior manufacturing quality engineer) rated all 3 catches as correct: 100% precision on spontaneous detection.
The DFMEA test cases included foundry casting preheat drift, NADCAP procurement actions, and casting porosity — none were authored as "supplier-blame tests." Specwarden found them anyway.
Read the full technical breakdown in our article on Tier-2 supplier-blame in DFMEA.