Document Generators
Turn a few sentences about your idea into a complete, professional document in seconds
Decuga's AI document generators help product managers, engineers, and designers produce high-quality technical documents without starting from a blank page. Describe what you're building, and Decuga drafts the full document — then you refine, edit, comment, and export it as a PDF.
PRD
Product Requirements Document
Product Design
UX flows & persona research
Mockups & Wireframes
Detailed screen designs
Architecture
System design & tech stack
Decision Memo
ADRs & trade-off analysis
PRD — Product Requirements Document
A PRD defines what you are building and why. It communicates requirements to engineers, designers, and stakeholders so everyone builds the same thing. Use it at the start of any new feature or product initiative.
PRD
Product Requirements Document
Best used when…
- Kicking off a new feature or product
- Aligning engineering, design, and leadership
- Documenting scope before a sprint starts
- Getting sign-off from stakeholders
What you get
- Background & problem statement
- High-level solution with key capabilities
- Solution component breakdown (infographic)
- Acceptance criteria (BDD-style)
- Use cases & edge cases
- Extensibility considerations
- Compliance & regulatory notes
- Success metrics
Input fields
Short name for the feature or product (e.g. 'Real-time notifications', 'Guest checkout').
What problem does this solve? Who has this problem? What is the impact if left unsolved?
Who will use this feature? Be specific — 'B2B SaaS admin managing 50+ users' is better than 'users'.
What outcomes should this achieve? List 3–5 measurable goals (e.g. 'reduce checkout drop-off by 20%').
Technical, legal, time, or budget limits the solution must work within. Optional but improves output quality.
Product Design
The Product Design generator produces a UX-focused document covering who your users are, how they interact with the product, and what the key screens and flows look like at a high level. Use it alongside a PRD to give designers and frontend engineers clear direction.
Product Design
UX flows & persona research
Best used when…
- Defining user personas before design starts
- Mapping key user journeys end-to-end
- Communicating UX intent to engineers
- Running a design sprint or discovery workshop
What you get
- User personas (goals, pain points, context)
- User flows with numbered steps
- Information architecture overview
- Key screens & interaction patterns
- Accessibility & inclusive design notes
- Design principles for the product
Input fields
The name of the product or feature being designed.
Describe the primary user segments — their roles, contexts, and technical proficiency.
List the core features users will interact with. This shapes the flows and personas.
Platform (web/mobile/desktop), accessibility requirements, brand guidelines, or technical limits.
Mockups & Wireframes
The Mockups & Wireframes generator produces detailed screen designs for your product — both a hi-fidelity themed view (with real colors, shadows, and charts) and a clean wireframe sketch. It focuses purely on screen layout and interaction, making it the fastest way to align a team on what the product actually looks like before a single line of code is written.
Mockups & Wireframes
Detailed screen designs
Best used when…
- Pitching a product idea to stakeholders
- Aligning designers and engineers on screen layout
- Running usability testing before building
- Generating a design starting point for a Figma sprint
What you get
- 8–12 detailed screens with realistic components
- Desktop and mobile variants for key screens
- Hi-fidelity themed view with customizable colors
- Clean wireframe sketch view for stakeholder review
- Interaction notes: transitions, loading states, gestures
- Toggle between Design and Wireframe modes
Input fields
The name of the product or feature being designed.
Who will use this product — their role, context, and technical proficiency.
List the specific screens or flows to generate mockups for, e.g. 'Login, Dashboard, Create Report modal, Empty state, Settings page'.
Optional style hint — e.g. 'minimal SaaS', 'mobile-first', 'dark mode', 'material design'. Shapes colors, density, and component choices.
Platform (web/mobile/desktop), brand colors, tech limits, or accessibility requirements.
Architecture
The Architecture generator produces a technical system design document covering components, data flows, database schema, security model, and deployment strategy. Use it when engineers need a shared understanding of how the system is built.
Architecture
System design & tech stack
Best used when…
- Starting a new service or major refactor
- Onboarding engineers to an existing system
- Planning infrastructure for scale or compliance
- Presenting tech decisions to leadership
What you get
- System overview & design principles
- Component breakdown (infographic by layer)
- Data flow diagrams with numbered steps
- Database schema & entity relationships
- Security model & auth patterns
- Deployment topology & scaling strategy
- Architecture Decision Records (ADRs)
Input fields
The name of the service, platform, or system being designed.
Expected load, growth targets, uptime SLA, and latency requirements. The more specific, the better the output.
Existing tech stack, cloud provider, compliance requirements (SOC 2, GDPR), team size, or budget.
Decision Memo
A Decision Memo documents a significant technical or product decision — the context, the options considered, the trade-offs, and the recommendation. Use it to build a shared record of whydecisions were made, so future team members understand the reasoning.
Decision Memo
ADRs & trade-off analysis
Best used when…
- Choosing a database, framework, or architecture pattern
- Evaluating build vs buy vs open-source
- Documenting a reversal of a previous decision
- Getting async sign-off from stakeholders on a direction
What you get
- Decision context & problem framing
- Options considered with pros/cons
- Recommendation with rationale
- Risks & mitigation strategies
- Next steps & owners
Input fields
A clear, specific decision statement (e.g. 'Choose message queue for async order processing').
Why is this decision needed now? What is the business or technical driver?
List the options you are considering. Include at least two — one option produces a weak analysis.
Non-negotiable requirements that any chosen option must satisfy (cost limits, compliance, team expertise).
Creating a document
All five document types follow the same three-step workflow: fill in the form, generate, then refine.
Open the workspace
Go to decuga.com/workspace, or click New documentfrom inside a project. Use the tab bar at the top to select the document type — PRD, Product Design, Mockups & Wireframes, Architecture, or Decision Memo.
Fill in the form
Each document type has its own short form. Required fields are marked with a red asterisk. Focus on being specific — a well-described problem produces a much sharper document than a generic one.
You can always go back and update your inputs later by clicking Edit inputs in the toolbar, then regenerating.
Click Generate
Decuga runs the AI in parallel across the document's sections. Most documents are ready in 15–30 seconds. The document appears immediately when complete — no page refresh needed.
Improving your output
The first draft is a starting point, not the final document. Decuga gives you two ways to improve it without starting from scratch.
Regenerate a section
Every section has a Regenerate button. Click it to rewrite just that section. You can optionally add instructions to guide the rewrite — for example:
- "Focus more on mobile users"
- "Add latency thresholds for each step"
- "Make the compliance section GDPR-specific"
- "Use BDD Given/When/Then format"
Regenerate the whole document
Click Edit inputs in the toolbar to update your original inputs, then click Generate again. The entire document is rewritten based on your updated description.
Use this when you want to take the document in a fundamentally different direction, or when the original inputs were too vague.
Editing inline
Every piece of text in the document is directly editable — no separate "edit mode" needed. Just click on any paragraph, bullet point, or section title to start typing.
Click to edit
Click any text field in the document. It turns into an editable area. Type your changes.
Auto-saves as you type
Edits are saved automatically whenever you click away or move to another field. There is no Save button — just edit and move on.
Edit list items individually
Acceptance criteria, key points, use cases, and other list items can each be edited independently. Click the item text to edit just that item.
Mix AI and manual edits freely
You can regenerate a section after editing it. Decuga uses your original inputs to regenerate, not your edited text — so you can refine the AI output and use regeneration as a reset whenever you want.
Saving & exporting
Decuga saves your document automatically whenever you generate or edit. You can also export a clean PDF to share with people who don't use Decuga.
Auto-save
- Documents are saved automatically to your project every time you generate or edit.
- Saved documents appear in the project Overview tab, grouped by type.
- Reopen any saved document from the project to continue editing where you left off.
Export to PDF
- Click the Export PDF button in the document toolbar.
- All sections are expanded automatically before capture — nothing is cut off.
- The PDF is generated in your browser and downloads instantly — no server upload needed.
- Infographics, colour coding, and tables are all preserved exactly as shown on screen.
Using projects
Projects are how you organise related documents together and collaborate with your team. A typical project might hold the PRD, Architecture doc, and Product Design for the same feature — all in one place.
Create a project
Go to the Dashboard and click New project. Give it a name that matches your product or feature (e.g. "User Onboarding Redesign").
Add documents to a project
Click New document inside a project, or open the workspace and select a project from the dropdown before generating. Documents created this way are automatically linked to that project.
Link documents across tools
Generate an Architecture or Product Design document directly from a PRD — Decuga pre-fills the inputs based on the PRD, keeping all your documents in sync.
Invite your team
Open the Members tab in a project to invite teammates by email. Assign them as Owner, Editor, or Viewer depending on what access they need.
Track linked tasks
Link project tasks to documents so your team can trace which tasks are implementing which requirement. Linked tasks appear in the document card on the Overview tab.
Tips for better results
These practices consistently produce sharper, more actionable documents.
Be specific in your inputs
Name real user segments, real metrics, and real constraints. "Reduce p95 checkout latency from 3.2s to under 800ms on 3G mobile" beats "make checkout faster".
Use constraints to anchor the output
Constraints are the most underused field. List your tech stack, team size, compliance needs, and timeline — they prevent the AI from suggesting things you can't use.
Regenerate sections, not the whole doc
If one section is off, regenerate just that section with a short instruction. Regenerating the whole document to fix one paragraph wastes your AI quota.
Give feedback in regeneration prompts
Tell the AI what was wrong, not just what you want. "The acceptance criteria are too abstract — make each one independently verifiable with a real test case" produces better results than "improve the acceptance criteria".
Start with PRD, then chain other tools
Create your PRD first to define the problem and goals. Then use it as the source for the Architecture and Product Design generators — they are pre-filled from the PRD automatically.
Edit first, share second
Treat the AI output as a strong first draft. Spend five minutes reviewing and editing before sharing with stakeholders — especially the acceptance criteria and success metrics, which benefit most from human judgement.
Comments & collaboration
Comments let your team discuss the document without cluttering the content itself. You can highlight specific text and comment on it, reply to teammates, assign follow-ups, and mark threads resolved.
Open the comment panel
Click the Comments button in the document toolbar to open the comment panel on the right side of the screen.
Add a comment or highlight text
To comment on a specific piece of text, select it with your mouse — a tooltip appears above the selection. Click Add comment to open the comment panel with your selection attached.
Or click New comment in the panel to add a general comment about the document.
Mention teammates
Type @ in the comment box to mention a project member by name. They'll receive a notification in Decuga (and optionally by email) so they know action is needed.
Reply and resolve
Reply to any comment to keep the conversation in context. When the discussion is settled, click Resolve to mark the thread done. Resolved comments are hidden by default but can be shown using the Show resolved toggle.