🧠 Project Knowledge Base Builder

Auto-generate a structured project knowledge base from codebase analysis. Zero dependencies, pure markdown.

🎯 The Problem

AI agents dropped into projects waste 30-50% of context just understanding the codebase. Developers repeat the same explanations every session. Architectural decisions get lost in git history.

✅ The Solution

One file: CONTEXT.md. A structured knowledge base that makes every agent session smart from message #1.

What it generates:

• Project overview & tech stack detection
• Module map with purpose & key files
• Shared domain language (inspired by mattpocock's 52K-star approach)
• Coding conventions (naming, patterns, rules)
• Architecture Decision Records (ADR)
• Gotchas & traps that trip up newcomers
• Common commands reference

📈 The Evidence

Project	Stars	Key Insight
mattpocock/skills	52K+	Shared language = #1 productivity booster
jcode	2.4K	Semantic memory is the killer feature
context-mode	12K+	Context optimization is critical

🚀 Quick Start

# 1. Copy the skill
npx skills add aptratcn/skill-project-knowledge

# 2. Point your agent at any project
cd /your/project
# Tell your agent: "Build a knowledge base for this project"

# 3. Get CONTEXT.md
# Your agent analyzes the codebase and generates a structured knowledge base

Or manually:

# Clone the skill
git clone https://github.com/aptratcn/skill-project-knowledge.git
# Copy SKILL.md to your agent's skills directory

📋 What CONTEXT.md Looks Like

# CONTEXT.md — Project Knowledge Base

## Project Overview
**Purpose:** E-commerce API with real-time inventory
**Domain:** REST API

## Tech Stack
| Category | Technology |
|----------|-----------|
| Language | TypeScript 5.4 |
| Framework | Fastify |
| Database | PostgreSQL 16 |

## Architecture
### Module Map
| Module | Purpose | Key Files |
|--------|---------|-----------|
| src/auth/ | JWT auth & RBAC | auth.ts, middleware.ts |
| src/inventory/ | Real-time stock | websocket.ts, sync.ts |
| src/orders/ | Order lifecycle | cart.ts, checkout.ts |

## Shared Language
| Term | Meaning |
|------|---------|
| SKU | Stock Keeping Unit — unique product identifier |
| Wave | Batch of orders processed together |

## Coding Conventions
- Files: kebab-case.ts
- Errors: custom AppError class with error codes
- All routes: input validation via zod schemas

## Key Decisions
### ADR-001: WebSocket over SSE for inventory
- Real-time bidirectional updates needed
- SSE would require separate channels for updates

## Gotchas
- Inventory service requires Redis to be running
- Don't modify prisma/schema.prisma without migration

🔄 4-Phase Process

Phase	Time	What Happens
Discover	5 min	Scan project structure, detect tech stack
Analyze	10 min	Extract patterns, conventions, dependencies
Generate	5 min	Create structured CONTEXT.md from template
Validate	2 min	Review accuracy, fix incorrect assumptions

⚡ Benefits

• 30-50% fewer "what does this file do?" questions
• Instant onboarding for new agents and developers
• Living documentation that stays current with the codebase
• Shared language prevents miscommunication
• ADR tracking preserves architectural decisions

🔗 Pairs With

• Cognitive Debt Guard — Track tech debt with CONTEXT.md
• Decision Archaeology — Dig into decision history
• Think in Code — 700x context savings on data tasks

📄 License

MIT

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Zero dependencies • Pure markdown • Works with any agent