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.
Powerful Features
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 Shivo Works
Describe the Feature
Write the idea in plain English and pick a spec template.
Generate a Structured Spec
Shivo produces a PRD, TDD, RFC, or spec with the right sections.
Lint and Add Criteria
Score requirements for ambiguity and gaps, then generate acceptance criteria.
Route for Review
Request review, resolve comments, diff versions, and export to Markdown.
Who Uses Shivo
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
Pricing
Free
Get started
- Generate specs from a plain-English idea
- Core spec templates
- Requirement quality lint
- No credit card required
Pro
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
Enterprise
For organizations
- Everything in Pro
- SSO and SAML
- Self-hosted option
- Dedicated support
- Custom templates and onboarding
Templates and Exports
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
Frequently Asked Questions
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