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‎.cursor/rules/specify-rules.mdc‎

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- N/A (workflow files stored in `.github/workflows/`) (004-github-pages-deployment)
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- TypeScript 5.9+ + React 18.3+, Tailwind CSS 4.1+, @excalidraw/excalidraw 0.18+, plan-viz 0.1.4, Zustand 5.0+ (005-ui-improvements)
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- Browser localStorage (for panel size preferences), IndexedDB (existing offline storage) (005-ui-improvements)
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- Markdown (GitHub Flavored Markdown) + None (plain markdown file) (006-readme-documentation)
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- N/A (static file in repository) (006-readme-documentation)
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- TypeScript 5.x with React 18.2+ + React, React Router v6, Zustand, Tailwind CSS, Recharts (charts), (001-admin-template)
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- TypeScript 5.x with React 18+ + plan-viz, @excalidraw/excalidraw, Zustand (002-plan-visualizer)
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TypeScript 5.x with React 18.2+: Follow standard conventions
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## Recent Changes
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- 006-readme-documentation: Added Markdown (GitHub Flavored Markdown) + None (plain markdown file)
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- 005-ui-improvements: Added TypeScript 5.9+ + React 18.3+, Tailwind CSS 4.1+, @excalidraw/excalidraw 0.18+, plan-viz 0.1.4, Zustand 5.0+
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- 004-github-pages-deployment: Added YAML (GitHub Actions workflow syntax), Node.js 18+ (for npm/build commands)
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- 003-offline-multi-platform: Added TypeScript 5.9+ with React 18.3+
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<!-- MANUAL ADDITIONS START -->

‎LICENSE‎

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MIT License
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Copyright (c) 2025 Plan Visualizer
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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‎PlanVisualizer.png‎

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‎README.md‎

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# Plan Visualizer
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A graphical web application for visualizing Apache DataFusion physical execution plans as interactive Excalidraw diagrams. Convert execution plans into clear visualizations with color coding that highlights key properties like parallelism, sort order preservation, pushdown optimizations, and operator selection. Identify bottlenecks and performance improvement opportunities throughout the plan.
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## Features
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- **Color-Coded Visualization**: See key execution properties highlighted throughout the plan
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- **Performance Insights**: Identify bottlenecks such as lost parallelism or sort order, missing pushdown optimizations, and suboptimal operator selection
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- **Interactive Editing**: Edit plans directly in Excalidraw and save back to JSON
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- **Export & Share**: Export to PNG or SVG for documentation and presentations
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- **Collaboration**: Open the Excalidraw JSON in excalidraw.com for real-time collaborative editing
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- **Offline Support**: Works without internet connection using service workers and local storage
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## Try It Now
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**[🚀 Use Online App](https://nga-tran.github.io/plan-visualizer/)**
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Simply paste your DataFusion physical execution plan and watch it transform into an interactive Excalidraw diagram.
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![Plan Visualizer showing execution plan input and visual diagram output](PlanVisualizer.png)
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## Powered By
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This project is built using **[plan-viz](https://www.npmjs.com/package/plan-viz)** ([GitHub](https://github.com/NGA-TRAN/plan_viz)), an npm package that converts Apache DataFusion physical execution plans into Excalidraw-JSON. The library uses color coding to highlight key properties and propagate them throughout the plan.
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Explore many example execution plans in the plan-viz [tests folder](https://github.com/NGA-TRAN/plan_viz/tree/master/tests) covering different DataFusion operators and patterns.
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New to query plans? See plan-viz's [Output Analysis](https://github.com/NGA-TRAN/plan_viz#output-analysis) section for examples on how to read them and determine if the plan is optimal.
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## Roadmap
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- **Interactive Query Builder**: Create tables, insert data, or link to existing files
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- **DataFusion Integration**: Run queries and generate EXPLAIN plans directly within the application
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- **Enhanced Visualization**: Additional diagram styles and customization options
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## Built With
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This project was developed using **[SpecKit](https://github.com/DINHDUY/spec-driven-ai-dev/blob/master/docs/AI-assisted%20Development%20with%20SpecKit.md)**, a specification-driven development framework that enables AI-assisted development through structured specifications and automated planning.
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## License
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Licensed under the [MIT License](LICENSE).

‎specs/006-readme-documentation/checklists/requirements.md‎

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# Specification Quality Checklist: README Documentation
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**Purpose**: Validate specification completeness and quality before proceeding to planning
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**Created**: 2025-01-27
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**Feature**: [spec.md](../spec.md)
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## Content Quality
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- [x] No implementation details (languages, frameworks, APIs)
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- [x] Focused on user value and business needs
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- [x] Written for non-technical stakeholders
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- [x] All mandatory sections completed
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## Requirement Completeness
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- [x] No [NEEDS CLARIFICATION] markers remain
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- [x] Requirements are testable and unambiguous
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- [x] Success criteria are measurable
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- [x] Success criteria are technology-agnostic (no implementation details)
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- [x] All acceptance scenarios are defined
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- [x] Edge cases are identified
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- [x] Scope is clearly bounded
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- [x] Dependencies and assumptions identified
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## Feature Readiness
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- [x] All functional requirements have clear acceptance criteria
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- [x] User scenarios cover primary flows
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- [x] Feature meets measurable outcomes defined in Success Criteria
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- [x] No implementation details leak into specification
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## Validation Results
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| Check | Status | Notes |
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|-------|--------|-------|
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| Content Quality | ✅ Pass | Spec focuses on WHAT (README content), not HOW (implementation). No technical details. |
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| Requirement Completeness | ✅ Pass | All 8 FRs are testable and unambiguous. No clarification markers needed. |
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| Feature Readiness | ✅ Pass | User story covers primary flow. Success criteria are measurable and technology-agnostic. |
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## Notes
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- **Implementation Status**: README.md file has been created in repository root with all required content
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- **Content Included**:
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- Short description of Plan Visualizer as graphical UI
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- Powered by plan-viz section with link
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- Deployment link with invitation to try
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- Roadmap section mentioning table creation, data insertion, and query execution
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- Built with SpecKit section with link
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- **Additional Enhancements**: Added "Why use Plan Visualizer?" section to make deployment link more attractive and useful
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- Specification is ready for `/speckit.plan` or `/speckit.clarify`
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‎specs/006-readme-documentation/contracts/README.md‎

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# API Contracts: README Documentation
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**Feature**: 006-readme-documentation
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**Date**: 2025-01-27
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## Overview
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This feature does not involve any APIs, endpoints, or service contracts. The README.md file is a static documentation file with no programmatic interfaces.
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## Contracts
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N/A - No API contracts required for this feature.
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## Notes
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- README.md is a static markdown file
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- No REST endpoints, GraphQL schemas, or service interfaces are involved
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- No API documentation is required
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‎specs/006-readme-documentation/data-model.md‎

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# Data Model: README Documentation
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**Feature**: 006-readme-documentation
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**Date**: 2025-01-27
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## Overview
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This feature does not involve any data entities or data persistence. The README.md file is a static markdown file that contains only text content and markdown formatting. No data model is required for this feature.
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## Entities
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N/A - No data entities involved in this feature.
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## Notes
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- README.md is a static text file
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- No database, API, or data structures are involved
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- Content is manually written and committed to the repository
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- No validation or data processing is required
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‎specs/006-readme-documentation/plan.md‎

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# Implementation Plan: README Documentation
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**Branch**: `006-readme-documentation` | **Date**: 2025-01-27 | **Spec**: [spec.md](./spec.md)
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**Input**: Feature specification from `/specs/006-readme-documentation/spec.md`
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**Note**: This template is filled in by the `/speckit.plan` command. See `.specify/templates/commands/plan.md` for the execution workflow.
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## Summary
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This feature adds a README.md file to the repository root that provides clear documentation about Plan Visualizer, including project description, deployment link, roadmap, and attribution to dependencies (plan-viz) and development framework (SpecKit). The README serves as the primary entry point for users discovering the project and helps establish credibility and usability.
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## Technical Context
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**Language/Version**: Markdown (GitHub Flavored Markdown)
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**Primary Dependencies**: None (plain markdown file)
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**Storage**: N/A (static file in repository)
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**Testing**: Manual review, markdown linting (optional)
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**Target Platform**: GitHub repository (rendered on GitHub, GitLab, and other markdown viewers)
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**Project Type**: Documentation file
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**Performance Goals**: File loads instantly, renders correctly on GitHub
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**Constraints**: Must be readable in under 2 minutes, concise, properly formatted markdown
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**Scale/Scope**: Single file (~200-300 lines), 6 required sections
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## Constitution Check
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*GATE: Must pass before Phase 0 research. Re-check after Phase 1 design.*
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| Principle | Check | Status |
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|-----------|-------|--------|
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| I. Deep Module Architecture | N/A - Documentation file, not code | ✅ N/A |
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| II. Render-as-You-Fetch | N/A - Static file, no data fetching | ✅ N/A |
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| III. State Colocation | N/A - Static file, no state | ✅ N/A |
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| IV. Feature-Based Organization | N/A - Documentation at root level | ✅ N/A |
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| V. Logic Extraction | N/A - Documentation file, no logic | ✅ N/A |
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**Technology Stack (Required):**
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- React 18+ (functional components only) ✅ N/A (documentation only)
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- TanStack Query v5+ for server state ✅ N/A (no server state)
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- Tailwind CSS or zero-runtime CSS solution ✅ N/A (markdown only)
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**Constitution Compliance Notes:**
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- This feature is documentation-only and does not involve code changes
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- All constitution principles are N/A for static documentation files
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- README.md is correctly placed at repository root (standard practice)
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## Project Structure
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### Documentation (this feature)
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```text
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specs/006-readme-documentation/
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├── plan.md # This file (/speckit.plan command output)
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├── research.md # Phase 0 output (/speckit.plan command)
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├── data-model.md # Phase 1 output (/speckit.plan command) - N/A (no data)
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├── quickstart.md # Phase 1 output (/speckit.plan command)
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├── contracts/ # Phase 1 output (/speckit.plan command) - N/A (no APIs)
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└── tasks.md # Phase 2 output (/speckit.tasks command - NOT created by /speckit.plan)
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```
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### Source Code (repository root)
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```text
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README.md # New file at repository root
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```
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**Structure Decision**: Single markdown file at repository root. This follows GitHub standard practice where README.md serves as the project's landing page and is automatically displayed on the repository homepage.
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## Complexity Tracking
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> **No violations - documentation-only feature**

‎specs/006-readme-documentation/quickstart.md‎

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# Quickstart: README Documentation
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**Feature**: 006-readme-documentation
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**Date**: 2025-01-27
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## Overview
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This quickstart guide explains how to create and maintain the README.md file for the Plan Visualizer project.
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## Prerequisites
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- Text editor or markdown editor
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- Git access to the repository
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- Basic understanding of Markdown syntax
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## Implementation Steps
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### Step 1: Create README.md File
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Create a new file named `README.md` in the repository root directory (`/Users/hoabinhnga.tran/plan-visualizer/README.md`).
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### Step 2: Add Required Sections
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Include the following sections in order:
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1. **Title and Description**
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- Project name as H1 heading
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- Brief description (1-2 sentences) explaining what Plan Visualizer is
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2. **Features Section**
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- List key features using bullet points
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- Keep descriptions concise
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3. **Try It Now Section**
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- Include deployment link: https://nga-tran.github.io/plan-visualizer/
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- Add call-to-action encouraging users to try it
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- Optionally add benefits/value proposition
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4. **Powered By Section**
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- Mention plan-viz package
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- Link to: https://www.npmjs.com/package/plan-viz
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- Brief description of what plan-viz does
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5. **Roadmap Section**
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- List future planned features:
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- Interactive Query Builder (table creation, data insertion)
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- DataFusion Integration (query execution, EXPLAIN plans)
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- Enhanced Visualization options
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- Keep descriptions high-level and user-focused
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6. **Built With Section**
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- Mention SpecKit
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- Link to: https://github.com/DINHDUY/spec-driven-ai-dev/blob/master/docs/AI-assisted%20Development%20with%20SpecKit.md
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- Brief description of SpecKit's role
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### Step 3: Formatting Guidelines
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- Use GitHub Flavored Markdown (GFM)
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- Use proper heading hierarchy (H1 for title, H2 for sections)
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- Format links as `[link text](URL)`
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- Use bullet points for lists
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- Keep each section concise (2-4 sentences max)
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- Test all links before committing
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### Step 4: Review and Commit
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1. Review the README for:
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- Spelling and grammar
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- Link functionality
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- Markdown formatting correctness
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- Readability (should be readable in under 2 minutes)
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2. Commit the file:
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```bash
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git add README.md
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git commit -m "Add README documentation"
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```
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## Verification
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After implementation, verify:
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- [ ] README.md exists in repository root
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- [ ] All required sections are present
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- [ ] All links are functional
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- [ ] Markdown renders correctly on GitHub
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- [ ] Content is concise and readable
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- [ ] No broken links or formatting issues
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## Maintenance
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- Update README when:
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- New features are added (update Features section)
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- Deployment URL changes
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- Roadmap items are completed or changed
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- Dependencies change (update attribution sections)
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## Example Structure
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```markdown
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# Plan Visualizer
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Brief description...
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## Features
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- Feature 1
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- Feature 2
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## Try It Now
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[🚀 Live Demo](https://nga-tran.github.io/plan-visualizer/)
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## Powered By
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[plan-viz](https://www.npmjs.com/package/plan-viz)
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## Roadmap
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- Future feature 1
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- Future feature 2
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## Built With
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[SpecKit](https://github.com/DINHDUY/spec-driven-ai-dev/blob/master/docs/AI-assisted%20Development%20with%20SpecKit.md)
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```
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