Turn a paragraph into a complete PRD, TDD, or API spec — with built-in checks for ambiguity, testability, and completeness that your whole team can review and approve.
Generate a PRD for Checkout redesign
Checkout redesign PRD
12 stories · 24 acceptance criteria
6 spec types
PRD · TDD · API · more
Ambiguity check
0 vague terms · all testable
Review workflow
draft · review · approved
Generated in
38 seconds
See which spec types you have drafted, follow a generation as it validates, and flip to the run log when you need the play-by-play.
CURRENT SPEC
Checkout redesign · PRD
Generated and validated
12 user stories, 24 acceptance criteria
Ambiguity check passed — 0 vague terms
Ready for review in one click
FIG. 01 · IDEA TO APPROVED SPEC
“Spec-type board, a live generation, and the run log — every requirement accounted for, in one place.”
Generate the specs your team actually needs, with the checks built in. Write requirements once and trust them everywhere.
Plus user stories, acceptance criteria, edge cases, and reusable public templates — more spec types land every release.
WHAT YOU GET ON EVERY SPEC
PRDs, technical designs, API and security specs.
PRD, TDD, SDD, API, security, and compliance.
Vague terms flagged before anyone builds against them.
From a paragraph to a complete first draft.
Every feature maps to a real moment in writing requirements — generating a draft, picking the right spec type, validating it, and getting your team to sign off.
RECENT SPECS
Write a brief description of what you need and Shivo drafts a complete spec — user stories, acceptance criteria, and detail — in seconds, not days.
PRD, Technical Design, System Design, API Design, Security, and Compliance — pick the document your team actually needs and Shivo tailors the structure to it.
Shivo flags vague terms like “fast” and “simple”, makes every requirement measurable, and analyzes the spec for missing edge cases — before anyone builds against it.
Every spec comes out organized and ready to share — user stories, acceptance criteria, and sections in a format your engineers and stakeholders can read at a glance.
Consistent structure on every spec
PRD · TDD · API · Security
Export to Markdown or share a link
DRAFT → REVIEW → APPROVED
Draft
Checkout redesign PRD created
Review
PM + 2 engineers requested · 3 comments
Approved
Signed off — ready to build
Every spec moves through Draft, Review, and Approved with inline comments and multi-stakeholder sign-off — so the whole team aligns before a line of code is written.
Describe
done ✓
Generate
done ✓
Validate
done ✓
Approve
ready
Save any spec as a reusable template, or start from a public one — so your team writes consistent requirements every time without starting from scratch.
Shivo grades every spec the way a careful reviewer would — so you know your requirements are unambiguous, testable, and complete, not just plausible.
Higher is better
Flags vague terms like “fast”, “easy”, and “simple” and rewrites them into precise language. The fewer ways a requirement can be read, the higher it scores.
Higher is better
Checks that every requirement is measurable and verifiable, with clear acceptance criteria. If QA cannot prove it is done, Shivo surfaces it before it ships.
Higher is better
Analyzes the spec for missing edge cases, error states, and undefined behavior — so the gaps surface in review, not in production.
THE SCORE
Across all three checks, your spec scores 92/100 — ready to review. Every finding is explained, so you know exactly what to tighten.
No blank page. No vague requirements. No back-and-forth chasing sign-off. Describe, generate, approve.
Write a brief description of what you need — a feature, an API, a system. No outline to fill in, no blank-page paralysis. Just the idea in your own words.
Shivo drafts a complete spec — PRD, technical design, API, or security — then validates it for ambiguity, testability, and completeness, flagging gaps before anyone builds.
Refine inline, leave comments, and move the spec from Draft to Review to Approved with multi-stakeholder sign-off and version control your whole team can trust.
A vague brief means guesswork in engineering, rework when assumptions break, and edge cases discovered in production. Shivo flags ambiguity, makes every requirement testable, and surfaces missing cases before anyone writes a line of code.
WHAT SHIVO CHECKS FOR YOU
Vague terms flagged automatically
Every requirement made testable
Missing edge cases surfaced early
Review and sign-off, built in
Free covers the occasional spec. Pro is for teams writing requirements every day — unlimited specs, every spec type, full validation and review.
For solo builders and side projects that need a spec now and then.
Get started freeCancel anytime. Unlimited specs, every type.
For teams writing requirements they can trust, every day.
Start Pro →FAQ · STRAIGHT ANSWERS
Everything you’d want to know about spec types, validation, review workflow, and pricing. Tap a question to expand.
Shivo generates PRDs, Technical Design Documents (TDD), System Design Documents (SDD), API design specs, security specs, and compliance docs — all from a short description of what you need.
READY WHEN YOU ARE
Describe what you need and watch a complete, validated spec come together — ready for your team to review. Free for 10 specs a month. No card required.
Your specs and requirements are scoped to your account — never used to train models.