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Acceptance Criteria Mechanical Testability Grader
x402
Acceptance Criteria Mechanical Testability Grader is a paid API for AI agents from predator-ubuntu.taild9a745.ts.net, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-18).
Grades acceptance criteria documents for mechanical testability using deterministic (non-LLM) rules, returning a structured quality assessment
Price / call$0.01
Success—
StatusUnknown
How this service works
Grade acceptance criteria on mechanical testability (deterministic, no LLM)
Output
Returns a structured grade or score indicating how mechanically testable the acceptance criteria are, including deterministic pass/fail signals and likely flags for criteria that are vague, subjective, or non-automatable — computed without LLM inference, using rule-based analysis.
Example use cases
QA review of sprint stories
“I have a list of acceptance criteria from our latest sprint planning — can you grade them for mechanical testability? I'll paste them in list format and I need to know which ones are too vague or non-deterministic before we start writing tests.”
BDD Gherkin scenario validation
“Check these Gherkin scenarios I wrote for testability — I want to know if they're deterministic and will produce consistent pass/fail results without any judgment calls: 'Given the cart has 3 items, When the user applies coupon SAVE10, Then the total is reduced by 10%.'”
Prose requirements testability audit
“I have a prose-format requirements doc with acceptance criteria — can you score it for mechanical testability and flag any criteria that are subjective or impossible to automate reliably?”
Technical details
Endpoint
POSThttps://predator-ubuntu.taild9a745.ts.net/v1/grade?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, reproducible, deterministic evaluation of acceptance criteria testability without relying on LLM judgment. Ideal for CI/CD pipelines, automated QA gates, or any workflow requiring consistent scoring rules. Prefer this over LLM-based review tools when auditability and determinism matter more than nuanced prose feedback.
Side effects
- Document exceeds 20,000 character limit — request rejected
- Invalid format enum value — must be one of auto, gherkin, list, prose
- Empty or missing document field — validation error
- Malformed JSON request body — 400 error
- Payment not provided or insufficient — 402 response
- Criteria language is too ambiguous for rule-based parsing — may return low-confidence grade
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| format | string | |
| document | string |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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