# This is NOT the Next.js you know This version has breaking changes — APIs, conventions, and file structure may all differ from your training data. Read the relevant guide in `node_modules/next/dist/docs/` (resolved from this file's directory; in monorepos the `next` package may not be visible from the repo root) before writing any code. Heed deprecation notices. This block is written and re-added by `next dev` — verify at `node_modules/next/dist/server/lib/generate-agent-files.js`. Removing it from a diff only re-creates the uncommitted change; committing it with your work keeps the tree clean. # MCPedia Agent Instructions MCPedia is a content-first knowledge base where Markdown files under `content/` serve as the Git-tracked source of truth, indexed into PostgreSQL and accessed via Web UI, tRPC API, and Model Context Protocol (MCP). ## Architecture Principles 1. **Single Core Layer (`@mcpedia/core`)**: All business logic (document CRUD, indexing, search, revisions, path classification) resides in `packages/core`. Never access the database directly from `apps/web`, `apps/mcp`, or `apps/api`. 2. **Content as Source of Truth**: Markdown files in `content/` with YAML frontmatter are the primary data store. The database stores metadata, search vectors, embeddings, and revision history. 3. **Multi-Modal Search**: Keyword search (Postgres FTS `tsvector` + GIN), Semantic search (cosine similarity over chunked embeddings), and Hybrid search (Reciprocal Rank Fusion / RRF) are unified in `@mcpedia/search`. 4. **Mutations & Security**: State-changing operations (document creation/updates/deletions, reindexing, revision restoration) require authentication (`x-webhook-secret` header or session cookie). ## Development Workflow - **Install dependencies**: `bun install` - **Run tests**: `bun run test` - **Typecheck**: `bun run typecheck` - **Build monorepo**: `bunx turbo run build` - **Index content**: `bun run index` - **Start dev servers**: `bun run dev`