Green Codens - AI-Powered PRD Creation & Management Platform

How It Works

From idea to engineering hand-off — end to end

1

Idea consultation

Chat with AI to organize requirements right from the concept stage. Even without a registered repository, you can start with just "what we want to do".

2

Codebase analysis

The Claude Agent SDK analyzes your GitHub repository and captures the context of the existing implementation, so you can write PRDs that extend existing features.

3

AI PRD structuring

Free-form text and chat content are auto-converted into structured PRDs that follow your project's template — background, goals, requirements, and acceptance criteria all organized.

4

Review and approval workflow

Assign reviewers and request approval. State transitions from draft → pending_review → approved and per-section comments make consensus visible.

5

Bidirectional Notion sync

Approved PRDs sync to Notion, and Notion-side edits flow back into the PRD. Share PRDs as the single source of truth without leaving your everyday tools.

Hand-off to engineering

Push approved PRDs out as Slack notifications, Jira tickets, or external task entries. Hand-off to Purple Codens or Blue Codens is one click away.

AI closes the language gap

Business wants to write "what we want to do".
Engineering wants to implement "what's been decided".
Green Codens stands between the two, translating free-form text, existing code, and your
organization's templates into PRDs that readers can act on.

PRD lifecycle

Origin Free-form / idea consultation

↓ AI structuring + codebase analysis

draft Section-based editor

↓ Reviewer assigned

pending_review Section-level comments

↓ Approval

approved → Notion bidirectional sync

Core Features

Write, align, iterate, and hand off PRDs — all on one platform

AI PRD structuring

Auto-converts free-form requests into template-based structured PRDs — background, goals, requirements, and acceptance criteria all organized.

Idea consultation chat

Even without a registered repository, organize requirements via chat with AI from the concept stage. When the discussion is solid, turn it into a PRD directly.

Codebase analysis

The Claude Agent SDK reads your GitHub repository and grounds PRD generation in the existing implementation — perfect for "extend the X feature in this app" themes.

Custom templates

Define PRD structure per project. Reuse the best practices accumulated across your organization as a "shape" for every new PRD.

Review and approval workflow

Make consensus visible with reviewer assignment, approve, send back, and per-section comments. Track state transitions across draft → pending_review → approved.

Version history

Change history is saved automatically and diffs are easy to compare. Trace the rationale behind decisions and "what changed when" after the fact.

Bidirectional Notion sync

Sync PRDs with Notion so edits in either place stay in sync automatically. Maintain a single source of truth for your internal documentation.

Slack / Jira / external task integration

From an approved PRD, fire Slack notifications, create Jira tickets, or register external tasks in one click. Drops right into your existing team workflow.

Codens family integration

Pass approved PRDs straight into Purple Codens (implementation) or Blue Codens (QA / E2E test generation) — the starting point of your dev chain.

Get Started in 4 Easy Steps

From business team members to engineering — bring everyone in instantly

See the How to Use Guide for detailed instructions on each step.

1

Create your account

Sign up at auth.codens.ai. Create an organization and invite both business and engineering members.

2

Create templates

Define PRD templates for your project (a default template is also available). Lock in your organization's conventions as a reusable shape.

3

Connect repos and Notion

Connect a GitHub repository (optional) and your Notion workspace. This activates codebase analysis and bidirectional sync.

✓

Author, approve, hand off

Create a PRD from idea consultation or free-form text → review and approve → sync to Notion → push to Slack/Jira/Purple/Blue.

PRD Generation Live Example

PRD Generation Steps

analyze_codebase Done (18.2s)

load_template Done (0.3s)

structure_prd Running…

request_review Pending

AI Structuring Live Output

▸ Reading repository (FastAPI / Next.js)

▸ Loading PRD template "feature-default"

› section: Background

› section: Problem to solve

› section: Requirements (functional / non-functional)

› section: Acceptance criteria

✓ generated 6 sections, 24 acceptance criteria

▸ Sync to Notion …

Template-compliant Codebase context attached Bidirectional Notion sync

UI Preview

PRD editor, review history, and Notion sync status — all in one view

app.green.codens.ai/projects/example/prds

Green Codens

PRDs

In review 2 Approved 5

PRD-021 · v3 · 1 hour ago

Include role info in invite emails

Reviewers: Yamada / Sato · 4 comments

In review

PRD-020 · v1 · 3 hours ago

Subscription trial extension feature

AI structuring: codebase analysis (FastAPI / Next.js)

AI generating

PRD-019 · v2 · Yesterday

Improve dashboard timezone display

Synced to Notion · Jira PROJ-481 created

Approved

PRD-018 · v1 · 3 days ago

Multilingual receipt PDFs (EN / JA)

Sent back → revising

Sent back

How It Differs From Handwritten PRDs, General Chat AI, and Notion Alone

To be honest, general-purpose chat AI like ChatGPT can draft a PRD too. What sets Green Codens apart is what happens after — management and integration.

Criteria	Handwritten PRD / doc template	General chat AI (ChatGPT, etc.)	Notion alone	Green Codens
Structure / template compliance	Free-form, easily inconsistent between authors	Chat can draft, but staying on-template is manual	Free-form pages, hard to enforce a template	AI auto-follows your project-defined template
Grounded in existing code	Relies on the author's memory / research	Doesn't read your codebase directly (needs paste-in)	Not supported	Claude Agent SDK analyzes your GitHub repo and reflects it
Version control / approval flow	Manual filenames / history	Only chat history remains, no approval concept	Page history exists, but approval flow needs separate tooling	Built-in draft → pending_review → approved
Notion / Jira bidirectional sync	Not supported	Not supported (manual copy)	Notion itself is the source of truth (no sync needed), but Jira integration needs another tool	Bidirectional sync and Jira ticket creation built in
Beyond implementation	Manually handed off to engineering	No link to implementation	No link to implementation	Approved PRD → Purple (implementation) → Orange (requirement gap detection) chain

General chat AI or Notion alone can still turn ideas into words, but Green Codens is built for teams who want "template compliance," "existing code context," "an approval workflow," and a "chain into Purple / Orange" all in one tool.

Subscription Plans

Five-tier monthly subscription (top-up available). Streamline PRD authoring with monthly credit allowances.

Credits are shared across the Codens family (Red / Blue / Green / Purple) via a common organization credit pool.

What are credits?

In Green Codens, credits are consumed for AI PRD structuring, codebase analysis, idea consultation responses, and AI regeneration.
Each plan includes a monthly credit allowance; if you exceed it, you can purchase additional top-up credit packs (subscription-based).

* Per-item consumption varies depending on PRD scope, template structure, and the size of the referenced repository.

14-day free trial • 100,000 credits • no card required

Free Trial

For trying it out

¥0 / 14 days

100,000

credits

no card required

Start Free

Hobby

For small teams

¥3,000 / mo

300,000

credits / month

5 seats

Get Started

Popular

Pro

For product teams

¥10,000 / mo

1,000,000

credits / month

10 seats

Get Started

Business

For business units and large teams

¥50,000 / mo

5,000,000

credits / month

25 seats

Get Started

For Enterprise (unlimited credits, custom contract, SLA), contact support@corevice.com.

Included in every plan

AI PRD structuring Review/approval workflow Bidirectional Notion sync Codens family shared credits Audit logs

For enterprise plans or custom contracts, feel free to reach out at support@corevice.com.

Let AI close the language gap

From idea to PRD approval to engineering hand-off — leave it to Green Codens and put business and engineering at the same table.

Get Started Free Contact us

14-day free trial • 100,000 credits • no card required

Contact

Questions, enterprise plans, onboarding support — get in touch any time

Email

We typically reply within 2–3 business days.

support@corevice.com

Other Codens products

Consider QA, auto-fix, and development orchestration as a bundle.

Blue Red Purple

Start free trial (100,000 credits, 14 days)

Frequently Asked Questions

Common questions about Green Codens (AI PRD creation & management)

What is Green Codens?

Green Codens is a PRD creation and management platform that uses AI to convert free-form business requirements into structured PRDs (Product Requirements Documents) and hands them off smoothly to engineering through a review/approval workflow and bidirectional Notion sync. With codebase analysis powered by the Claude Agent SDK, it can generate PRDs grounded in the context of your existing implementation.

How does it structure a PRD from free-form text?

When you enter free-form requests or chat in idea consultation, the AI automatically structures them into sections such as background, goals, requirements (functional/non-functional), and acceptance criteria, following your project's template. If a GitHub repository is connected, it also factors in the context of your existing code.

How do the Notion and GitHub integrations work?

Approved PRDs sync bidirectionally with Notion, so edits on either side stay in sync automatically. GitHub repositories are used for codebase analysis via the Claude Agent SDK, enabling PRD generation grounded in your existing implementation. Slack notifications and Jira ticket creation from approved PRDs are also supported.

What is hand-off to Purple Codens?

It is the ability to pass an approved PRD straight to Purple Codens (AI development orchestration) in the Codens family so it can be picked up as implementation tasks. Hand-off to Blue Codens (QA / E2E test generation) is also supported, making Green Codens the starting point of your development chain.

How does pricing (credits) work?

It is a five-tier subscription model (Free 14-day trial / Hobby ¥3,000 / Pro ¥10,000 / Business ¥50,000 / Enterprise), with a monthly credit allowance for each plan. Credits are consumed for PRD structuring, codebase analysis, idea consultation responses, and AI regeneration, and are shared across the Codens family (Red / Blue / Green / Purple) via a common organization credit pool. New signups can start with a 14-day free trial (100,000 credits, no card required).

Can I use Green Codens even if I'm not an engineer?

Yes. Green Codens is designed so business-side, non-engineer users can simply describe requests in free-form text. You don't need to know PRD formats or technical terminology — the AI structures your input according to your project's template. Since the development team reviews and approves every PRD, technical feasibility is validated on their side.

How does the PRD I create connect to implementation?

Once approved, a PRD is handed straight to Purple Codens (implementation orchestration) in the Codens suite and picked up as implementation work. After implementation, Orange Codens (code review & security audit) detects gaps between the PRD and the code, and Blue Codens generates QA/E2E tests — extending the PRD into a full development chain.

Can I use it without a repository?

Yes. The Idea Consultation feature lets you organize requirements through an AI chat from the concept stage, even before connecting a GitHub repository. Once the discussion is solid, you can convert it straight into a PRD — useful for new products or early-stage plans that don't have code yet.

The Codens Suite

Codens is an AI development suite from Japan that automates the entire software development lifecycle — requirements (Green), implementation (Purple), code review & security audit (Orange), QA/E2E testing (Blue), and production error auto-fix (Red). Teams can build and operate software products without a large team of specialist engineers.

Green Codens is where requests first get put into words, so it's often the first product non-engineer customers touch — the entry point into the suite. The PRDs organized here hand off into Purple, Orange, Blue, and Red.

Code review & security

Blue

QA / E2E testing

Red

Production error auto-fix

Shared authentication for every product: Auth Codens (unified auth & SSO)