AI Spec & PRD Generator

Turn an Idea Into a Clear,Reviewable Spec

Shivo turns a rough idea into a structured PRD, TDD, RFC, or spec, then lints the requirements for ambiguity and gaps and generates acceptance criteria. Write specs your team can actually build from and route them for review in one place.

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Shivo key art: five stacked sheets of glass lit pink by a white beam passing through them, on a dark reflective stage

Features

PowerfulFeatures

  • Spec and PRD Generation

    Describe a feature and Shivo generates a structured document, whether you need a PRD, technical design doc, RFC, or one-pager. Start from a proven template instead of a blank page.

    • PRD, TDD, RFC, and spec formats
    • Templates for PRD, TDD, RFC, Security, and one-pager
    • Structured sections out of the box
    • Generated from a plain-English idea

  • Requirement Quality Lint

    Shivo lints your requirements for ambiguity, testability, and completeness, scoring each one and flagging the issues. Catch vague, untestable requirements before they reach engineering.

    • Ambiguity detection
    • Testability scoring
    • Completeness checks
    • Specific issues to fix

  • Acceptance Criteria Generator

    Generate Gherkin-style acceptance criteria directly from your requirements so every spec ships with clear, testable conditions for done.

    • Gherkin acceptance criteria
    • Clear definition of done
    • Testable conditions
    • Generated from requirements

  • Review Workflow

    Route a spec for review, collect approvals or change requests with a comment thread, and track exactly what changed between versions with a side-by-side diff.

    • Request, approve, request changes
    • Threaded comments
    • Version diff
    • Markdown export

How it works

HowShivo Works

  1. Describe the Feature

    Write the idea in plain English and pick a spec template.

  2. Generate a Structured Spec

    Shivo produces a PRD, TDD, RFC, or spec with the right sections.

  3. Lint and Add Criteria

    Score requirements for ambiguity and gaps, then generate acceptance criteria.

  4. Route for Review

    Request review, resolve comments, diff versions, and export to Markdown.

Stacked glass sheets lit pink by a white beam on a dark desk at night, beside a notebook, a pen and sticky notes

Use cases

Who UsesShivo

  • Product Managers

    Turn ideas into clear PRDs with testable requirements and acceptance criteria

  • Engineering Leads

    Get unambiguous, complete specs and route them through structured review

  • Founders

    Move from a rough concept to a buildable spec without learning a process

  • Technical Writers

    Lint requirements for clarity and keep versions in sync with diffs

Shivo

Pricing

  • Free

    $0/forever

    Get started

    • Generate specs from a plain-English idea
    • Core spec templates
    • Requirement quality lint
    • No credit card required
    Get started

  • Pro

    Recommended

    $15/per month

    For product and engineering teams

    • Unlimited spec generation
    • All templates (PRD, TDD, RFC, Security, one-pager)
    • Gherkin acceptance-criteria generator
    • Review workflow with comments and approvals
    • Version diff and Markdown export
    • Saved spec history
    • Priority support
    Start Pro

  • Enterprise

    Custom

    For organizations

    • Everything in Pro
    • SSO and SAML
    • Self-hosted option
    • Dedicated support
    • Custom templates and onboarding
    Contact us

Integrations

Templates andExports

Generate, review, and ship specs in formats your team already works in

  • PRD Template

    Template

  • TDD Template

    Template

  • RFC Template

    Template

  • Review Workflow

    Tool

  • Markdown

    Export

FAQ

FrequentlyAsked Questions

Shivo is built and maintained by Jishu Labs. Last updated .

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