feat: Add Project Documenter Plugin with agents and skills (#1436)

* feat: Add Project Documenter Plugin with agents and skills

- Auto-discovers technology stack and project structure
- Generates architecture diagrams with draw.io
- Creates professional Word (.docx) output with embedded PNG images
- Includes agents for orchestration and skills for functionality

* chore: moved agents, skills and scripts to respective folders

* chore: ran npm run build for readme updates

* Update plugins/project-documenter/.github/plugin/plugin.json

Co-authored-by: Aaron Powell <me@aaron-powell.com>

* fix: readme.agent.md file

* fix: added the missing agent file and updated readme for the same

---------

Co-authored-by: Aaron Powell <me@aaron-powell.com>
This commit is contained in:
parveen-dotnet
2026-05-01 05:59:26 +05:30
committed by GitHub
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commit acdae521d2
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{
"name": "project-documenter",
"description": "Generate professional project documentation with draw.io architecture diagrams and Word (.docx) output with embedded images. Automatically discovers any project's technology stack and produces Markdown, diagrams, PNG exports, and a formatted Word document.",
"version": "1.0.0",
"author": {
"name": "Awesome Copilot Community"
},
"repository": "https://github.com/github/awesome-copilot",
"license": "MIT",
"keywords": [
"documentation",
"architecture-diagrams",
"drawio",
"word-document",
"docx",
"png-images",
"c4-model",
"project-summary",
"auto-discovery"
],
"agents": [
"./agents/project-documenter.md"
],
"skills": [
"./skills/drawio/",
"./skills/md-to-docx/"
]
}

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# Project Documenter Plugin
Generate professional project documentation with draw.io architecture diagrams and Word (.docx) output with embedded PNG images. Works on any software project — automatically discovers the technology stack, architecture, and code structure.
## Installation
```bash
# Using Copilot CLI
copilot plugin install project-documenter@awesome-copilot
```
## What It Does
Point the **Project Documenter** agent at any repository and it produces:
1. **Markdown document** — 10-section project summary with embedded diagram references
2. **Draw.io diagrams** — C4 Context, Pipeline, and Component relationship diagrams (`.drawio` + `.drawio.png`)
3. **Word document** — professionally formatted `.docx` with title page, table of contents, and embedded PNG architecture images
## What's Included
### Agent
| Agent | Description |
|-------|-------------|
| `project-documenter` | Generates professional project documentation with draw.io architecture diagrams and Word document output with embedded images. Auto-discovers any project's technology stack and architecture. |
### Skills
| Skill | Description |
|-------|-------------|
| `drawio` | Generate draw.io diagrams as `.drawio` files and export to PNG via bundled Node.js script (uses draw.io CLI or headless browser) |
| `md-to-docx` | Convert Markdown to Word (`.docx`) with embedded PNG images — pure JavaScript, no Pandoc required |
## How It Works
### Step 1: Discover
The agent scans your repository to understand:
- Technology stack (`.csproj`, `package.json`, `pom.xml`, `go.mod`, etc.)
- Architecture pattern (API, worker service, CLI, library)
- Design patterns (factory, strategy, repository, pipeline)
- Interfaces, implementations, models, configuration
- Dependencies, Docker setup, CI/CD
### Step 2: Generate Diagrams
Creates 3-5 professional draw.io diagrams following the C4 Model:
| Diagram | C4 Level | Shows |
|---------|----------|-------|
| High-Level Architecture | Context | System in its environment — upstream, downstream, external deps |
| Processing Pipeline | Container | Internal data flow — entry point → stages → output |
| Component Relationships | Component | Interfaces, implementations, factories, DI graph |
| Deployment (optional) | Infrastructure | Docker, Kubernetes, scaling, cloud services |
| Data Model (optional) | Component | Entity/DTO hierarchy (if significant) |
Each diagram is exported to PNG using the bundled `drawio-to-png.mjs` script.
### Step 3: Write Markdown
Produces `docs/project-summary.md` with 10 sections:
1. Executive Summary
2. Architecture Overview (with embedded diagram)
3. Processing Pipeline (with embedded diagram)
4. Core Components (with embedded diagram)
5. API Contracts / Message Schemas
6. Infrastructure & Deployment
7. Extension Patterns
8. Rules & Anti-Patterns
9. Dependencies
10. Code Structure
### Step 4: Word Document
Converts the Markdown to a formatted `.docx` using the bundled `md-to-docx.mjs` script:
- Title page with project name, date, version, audience
- Auto-generated table of contents
- **PNG diagram images embedded inline** in the Word document
- Calibri font, colored headings, styled tables with alternating rows
- Code blocks in Consolas with shaded background
### Step 5: Verify
Spot-checks class names, file paths, and diagram accuracy against the actual codebase. Reports all generated files.
## Generated Output
```
docs/
├── project-summary.md # Source document (Markdown)
├── project-summary.docx # Word document with embedded images
└── diagrams/
├── high-level-architecture.drawio # C4 Context diagram (editable)
├── high-level-architecture.drawio.png # Rendered PNG
├── processing-pipeline.drawio # C4 Container diagram
├── processing-pipeline.drawio.png
├── component-relationships.drawio # C4 Component diagram
└── component-relationships.drawio.png
```
## Prerequisites
| Requirement | Purpose | Required? |
|-------------|---------|-----------|
| Node.js 18+ | Run bundled export scripts | Yes |
| Edge or Chrome | Headless browser for diagram rendering | One of: this OR draw.io desktop |
| draw.io desktop | CLI diagram export (faster alternative) | Optional (browser fallback available) |
## Technology Agnostic
Works with any stack. The agent auto-detects:
- **.NET** (`.csproj`, `.sln`), **Java** (`pom.xml`, `build.gradle`), **Node.js** (`package.json`), **Python** (`pyproject.toml`), **Go** (`go.mod`), **Rust** (`Cargo.toml`)
- Docker, Kubernetes, GitHub Actions, GitLab CI
- Any messaging system (SQS, RabbitMQ, Kafka, Azure Service Bus)
- Any database ORM (EF, Hibernate, Prisma, SQLAlchemy)
## Source
This plugin is part of [Awesome Copilot](https://github.com/github/awesome-copilot), a community-driven collection of GitHub Copilot extensions.
## License
MIT