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Make AI coding predictable

Specstack turns vague prompts into structured specs with your standards built in. Predictable output, every run.

specstack.app/dashboard/spec
Dashboard/Configure Spec/New
JS
Step 2

Configure your spec

Customize the options below to fine-tune your spec output.

A modern documentation page for an API reference, featuring syntax highlighting, interactive examples, and a clean navigation structure.

Layout & Structure

Where to place the navigation sidebar
Visual style of the page header
Display navigation breadcrumbs at the top

Content Features

Enable code syntax highlighting for code blocks
Allow users to run code examples in-browser
Show a floating table of contents
Maximum width of the main content area
800px

Additional Features

Select additional features to include
Dashboard/Style Guides/New
JS

New style guide

custom

Define design tokens that will be applied to your specs.

Icons & Emoji

Use emojis

Color Palette

Primary
Secondary
Tertiary
Background
Foreground

Typography

Interaction States

Animation

Animations enabled
Duration0.3s
Dashboard/Code Style/New
JS

New code style

Define coding preferences that will guide code generation.

Project Structure

Component names use PascalCase
Function names start with verb

Type System

Explicit return types required

Imports

Testing

The problem with AI coding

Prompts are unreliable. Specs are not. Unstructured prompts lead to wasted tokens, repeated iterations, and slower development. Getting the correct result on the first try matters. Specstack makes it possible.

Generate specs

From prompts to specs

Describe what you want. Specstack identifies the key decisions and requirements so you know exactly what to configure before you generate.

Create your first spec
Your prompt

"Create a pricing page with 3 tiers and a billing toggle"

Requirements identified
Yearly discount?default: 20%
Highlight tier?default: middle
Currency format?default: USD
Edge cases found
What if user switches billing mid-selection?
Handle enterprise/custom pricing requests?
Mobile layout: stack or scroll tiers?

Fewer retries

Know what needs deciding upfront. One pass surfaces requirements instead of discovering them mid-prompt.

Clear requirements

Analysis shows you what the spec needs before you generate. No surprises, no rework.

Edge cases

Specstack identifies edge cases you might have missed or didn't know about, and lets you configure them before you generate.

"I used to spend a lot of time iterating on prompts when the AI didn't give me the result I wanted. With specs, I get predictable output on the first or second try."

Remi Rønning

Founder of Specstack

RR
Configure UI

Configure your spec

A dynamic UI shows all available configuration options and lets you customize your spec before you generate. Drag, click, and select to configure your spec.

Try the configure UI
Layout
Tiers
Sections
Style
Grid columns
3 tiers
Card spacing
24px
Yearly discount
20%
Page sections
Pricing cards
Comparison table
FAQ accordion
CTA banner

Click, not type

Controls adapt to each task. Make decisions through UI instead of rewriting prompt text.

Preview as you go

See the spec update live while you configure. Catch issues before generation.

Reusable specs

Save specs and use them again. Same configuration, same results, across projects.

"Shared specs ended the style drift problem. Everyone generates code that actually matches our conventions."

Marcus Johnson

CTO

MJ
Style Guide & Code Style

Consistency in output

Generate style guides and code styles that are consistent and predictable. The AI will use these to generate your spec.

Set up standards
Style Guide
Color Palette
Typography
H132px / 700
Body16px / 400
Spacing
4px8px16px24px
Code Style
Structure
src/
├─ components/
├─ hooks/
└─ utils/
Conventions
useCustomHookcamelCase
Button.tsxPascalCase

Design consistency

Colors, typography, spacing baked into every spec. No more style drift between outputs.

Code structure

File layout, naming, patterns enforced automatically. Same conventions, every generation.

Team-wide standards

Define once, share across the team. Everyone generates specs that follow the same rules.

Use with your favourite coding assistant

Specstack produces standard markdown that works perfectly with any AI coding tool. Copy your spec and get the same predictable results everywhere.

Start generating specs

Built for developers that ship with confidence

Specstack is designed for developers who value consistency and predictability. Start building with specs that work the same way every time.

Get started

Replace prompts with specs

Predictable output. Fewer iterations.

Create your first specRead more