FabledScribe/summary.md

Fabled Assistant - Project Context

Purpose: This file is the canonical reference for re-initializing Claude Code context on this project. Update this file after every change session.

Last Updated

2026-02-09 — Phase 3.5 complete (Task-Note companions, wikilink auto-create, backlinks, bug fixes, Alembic migration infrastructure)

Project Overview

Fabled Assistant is a self-hosted note-taking and task-tracking application with integrated LLM capabilities. It is designed to run on container infrastructure (Docker Swarm) and connect to Ollama or any self-hostable LLM-compatible system for AI-assisted features.

Core Architecture

Stack

Layer	Technology	Notes
Frontend	Vue 3 + TypeScript + Vite + Pinia + Vue Router	SPA served from the same container as the API
Backend/API	Quart (Python 3.12)	Async framework; serves both API and built frontend static files
LLM	Ollama	Or any OpenAI-compatible self-hosted LLM API
Database	PostgreSQL 16	asyncpg driver, SQLAlchemy 2.0 async ORM, Alembic migrations
Deployment	Docker Compose	Single-container app + separate DB + LLM service

Key Design Decisions

• Single container for frontend + API: Quart serves the Vue.js production build as static files and exposes the REST API under /api/.
• Quart chosen for familiarity: The maintainer (bvandeusen) knows Quart well.
• SPA routing via 404 handler: app.py uses @app.errorhandler(404) (not a catch-all route) to serve static files or fall back to index.html. API routes (/api/*) get JSON 404 responses. This avoids a catch-all /<path:path> route intercepting API GETs.
• LLM integration is a separate service: The app communicates with Ollama (or compatible) over HTTP.
• Inline tag extraction: Tags are extracted from note/task body text using #tag syntax (Obsidian-style), not manually entered. Backend is source of truth for tag extraction.
• Hierarchical tags: #project/webapp stored as "project/webapp". Filtering by project matches both project and project/* children via SQL unnest + LIKE prefix.
• Dark-first theming: CSS custom properties on :root (light) and [data-theme="dark"], with prefers-color-scheme detection defaulting to dark.
• Task-Note companion link: Every task automatically gets a companion note (created in create_task()). Title changes sync bidirectionally. Deleting either cascades to the other. _skip_cascade flag prevents infinite loops.
• Wikilinks: Obsidian-style [[Title]] and [[Title|Display Text]] in markdown bodies. Clicking a wikilink uses POST /api/notes/resolve-title to auto-create missing notes.
• Backlinks: GET /api/notes/:id/backlinks searches all note bodies and task descriptions for [[Title]] patterns referencing the given note.
• Idempotent raw SQL migrations: All Alembic migrations use raw SQL with CREATE TABLE IF NOT EXISTS, CREATE INDEX IF NOT EXISTS, and DO $$ BEGIN CREATE TYPE ... EXCEPTION WHEN duplicate_object to allow safe re-runs and fresh database creation.

High-Level Component Diagram

┌─────────────────────────────────────────────┐
│              Docker Compose                  │
│                                              │
│  ┌──────────────────────┐   ┌────────────┐  │
│  │  fabledassistant     │   │  ollama     │  │
│  │  ┌────────────────┐  │   │            │  │
│  │  │  Quart Server   │  │   │  LLM API   │  │
│  │  │  ┌──────────┐  │  │   │            │  │
│  │  │  │ Vue SPA  │  │  │   └────────────┘  │
│  │  │  │ (static) │  │  │         ▲         │
│  │  │  └──────────┘  │  │         │         │
│  │  │  ┌──────────┐  │  │    HTTP/REST      │
│  │  │  │ /api/*   │──┼──┼─────────┘         │
│  │  │  └──────────┘  │  │                   │
│  │  │       │        │  │  ┌────────────┐   │
│  │  │       ▼        │  │  │ PostgreSQL │   │
│  │  │  ┌──────────┐  │  │  │    16      │   │
│  │  │  │ asyncpg  │──┼──┼──▶            │   │
│  │  │  └──────────┘  │  │  └────────────┘   │
│  │  └────────────────┘  │                   │
│  └──────────────────────┘                   │
└─────────────────────────────────────────────┘

Data Model

Notes (implemented)

• id (int PK), title (str), body (markdown str), tags (ARRAY[str]), parent_id (nullable FK to self), created_at, updated_at
• Tags are auto-extracted from body text on create/update via #tag regex
• Supports hierarchical organization via parent_id
• Lookup by exact title via get_note_by_title() for wikilink resolution
• Auto-create via get_or_create_note_by_title() for wikilink clicks

Tasks (implemented)

• id (int PK), title (str), description (markdown str), status (enum: todo/in_progress/done), priority (enum: none/low/medium/high), due_date (date, nullable), note_id (FK to notes, auto-created companion), tags (ARRAY[str]), created_at, updated_at
• Tags auto-extracted from description on create/update
• Status enum with quick-toggle cycling: todo → in_progress → done → todo
• Companion note auto-created on task creation, title synced bidirectionally
• Deleting a task deletes its companion note (and vice versa)
• Indexes: GIN on tags, B-tree on note_id, B-tree on status

LLM Interactions (Phase 4)

• Summarize notes, generate task breakdowns, search/query across notes, chat-style assistant within the app

Project Structure (Current)

fabledassistant/
├── summary.md                   # This file — canonical project context
├── pyproject.toml               # Python project config
├── Dockerfile                   # Multi-stage build (Node → Python)
├── docker-compose.yml           # Dev compose (app, PostgreSQL, Ollama)
├── alembic.ini                  # Alembic config (prepend_sys_path = src)
├── alembic/
│   ├── env.py                   # Async migration runner
│   └── versions/
│       ├── 0001_create_notes_table.py  # Notes table (raw SQL, idempotent)
│       ├── 0002_create_tasks_table.py  # Tasks table + enums (raw SQL, idempotent)
│       └── 0003_task_note_companion.py # Data migration: create companion notes for existing tasks
├── src/
│   └── fabledassistant/
│       ├── __init__.py
│       ├── app.py               # Quart app factory: SPA via 404 handler, JSON 404/500 for API
│       ├── config.py            # Config from env vars
│       ├── models/
│       │   ├── __init__.py      # async_session factory, Base, imports Note + Task
│       │   ├── note.py          # Note model (id, title, body, tags[], parent_id, timestamps)
│       │   └── task.py          # Task model (id, title, description, status, priority, due_date, note_id, tags, timestamps)
│       ├── routes/
│       │   ├── __init__.py
│       │   ├── api.py           # /api blueprint with /health endpoint
│       │   ├── notes.py         # /api/notes CRUD + /by-title + /resolve-title + /convert-to-task + /backlinks
│       │   └── tasks.py         # /api/tasks CRUD + PATCH status
│       ├── services/
│       │   ├── notes.py         # CRUD, tag filter, get_or_create_by_title, convert_note_to_task, get_backlinks, cascade delete/sync
│       │   └── tasks.py         # CRUD with auto companion note, cascade delete/sync, _skip_cascade flag
│       ├── utils/
│       │   ├── __init__.py
│       │   └── tags.py          # extract_tags() — regex #tag extraction, skips code fences
│       └── static/              # Vue production build (generated by Dockerfile)
└── frontend/
    ├── package.json             # deps: vue, pinia, vue-router, marked, dompurify
    ├── vite.config.ts
    ├── tsconfig.json
    ├── src/
    │   ├── App.vue              # Shell: AppHeader + router-view + ToastNotification
    │   ├── main.ts              # App init, imports theme.css
    │   ├── assets/
    │   │   └── theme.css        # CSS custom properties: light/dark themes, body reset
    │   ├── api/
    │   │   └── client.ts        # apiGet/apiPost/apiPut/apiPatch/apiDelete helpers
    │   ├── composables/
    │   │   ├── useTheme.ts      # Theme toggle, localStorage, prefers-color-scheme
    │   │   └── useAutocomplete.ts # #tag + [[wikilink]] autocomplete: Tab cycling, debounced search
    │   ├── stores/
    │   │   ├── notes.ts         # CRUD + tag filter, resolveTitle, convertToTask, fetchBacklinks, fetchAllTags
    │   │   ├── tasks.ts         # CRUD + status/priority filter, patchStatus
    │   │   └── toast.ts         # Toast notification state, 3s auto-dismiss
    │   ├── types/
    │   │   ├── note.ts          # Note, NoteListResponse interfaces
    │   │   └── task.ts          # Task, TaskStatus, TaskPriority, TaskListResponse
    │   ├── utils/
    │   │   ├── tags.ts          # extractTags(), linkifyTags(), linkifyWikilinks()
    │   │   └── markdown.ts      # renderMarkdown() (full), renderPreview() (strips links/images for cards)
    │   ├── views/
    │   │   ├── HomeView.vue     # Landing page: recent notes + tasks (independent error handling)
    │   │   ├── NotesListView.vue # Note list: search, sort, tag filter pills, pagination
    │   │   ├── NoteEditorView.vue # Create/edit: Ctrl+S, unsaved guard, toasts, autocomplete
    │   │   ├── NoteViewerView.vue # Markdown render, wikilink auto-create, companion task link, convert-to-task, backlinks
    │   │   ├── TasksListView.vue # Task list: search, status/priority filters, sort, pagination, status toggle
    │   │   ├── TaskEditorView.vue # Create/edit task: fields, companion note link, Ctrl+S, dirty guard, autocomplete
    │   │   └── TaskViewerView.vue # Task detail: rendered markdown, badges, companion note link, backlinks
    │   ├── components/
    │   │   ├── AppHeader.vue    # Nav bar: brand, Notes + Tasks links, theme toggle
    │   │   ├── NoteCard.vue     # Card with rendered markdown preview (v-html), TagPill, tag-click emit
    │   │   ├── TaskCard.vue     # Card with rendered preview, StatusBadge (clickable), PriorityBadge, due date, tags
    │   │   ├── StatusBadge.vue  # Color-coded status badge, optional clickable cycling
    │   │   ├── PriorityBadge.vue # Color-coded priority indicator (hidden for "none")
    │   │   ├── MarkdownToolbar.vue # Bold/italic/link/list/heading toolbar for editor
    │   │   ├── SearchBar.vue    # Debounced search input
    │   │   ├── TagPill.vue      # Clickable/dismissible tag pill
    │   │   ├── PaginationBar.vue # Prev/next + page numbers
    │   │   └── ToastNotification.vue # Fixed-position toast container
    │   └── router/
    │       └── index.ts         # Routes: /, /notes/*, /tasks/*
    └── public/

API Endpoints (Current)

Method	Path	Description
GET	/api/health	Health check
GET	/api/notes	List notes (params: q, tag, sort, order, limit, offset)
POST	/api/notes	Create note (body: {title, body} — tags auto-extracted)
GET	/api/notes/tags	List all tags from notes + tasks (param: q for filter)
GET	/api/notes/by-title?title=...	Resolve note by exact title (case-insensitive)
POST	/api/notes/resolve-title	Get-or-create note by title (for wikilink clicks)
GET	/api/notes/:id	Get single note
PUT	/api/notes/:id	Update note (body: {title?, body?} — tags re-extracted if body changes)
DELETE	/api/notes/:id	Delete note (cascades to companion task)
POST	/api/notes/:id/convert-to-task	Convert note into a task (deletes original note)
GET	/api/notes/:id/backlinks	List notes/tasks that reference this note via wikilinks
GET	/api/tasks	List tasks (params: q, tag, status, priority, note_id, sort, order, limit, offset)
POST	/api/tasks	Create task (body: {title, description, status?, priority?, due_date?} — companion note auto-created)
GET	/api/tasks/:id	Get single task
PUT	/api/tasks/:id	Update task (title syncs to companion note)
PATCH	/api/tasks/:id/status	Quick status toggle (body: {status})
DELETE	/api/tasks/:id	Delete task (cascades to companion note)

Alembic Migrations

Overview

Migrations use raw SQL for full idempotency — safe to run on a fresh database or re-run on an existing one. The Dockerfile runs migrations automatically on container startup.

Migration Chain

0001_create_notes_table.py  →  0002_create_tasks_table.py  →  0003_task_note_companion.py

How Migrations Run

The Dockerfile CMD runs:

(alembic stamp --purge base 2>/dev/null || true) && alembic upgrade head && hypercorn ...

• alembic stamp --purge base clears any stale revision stamps (safe no-op if none)
• alembic upgrade head runs all pending migrations in order
• Migrations are idempotent so re-running is safe

Creating a New Migration

When adding a new migration, follow these conventions:

1. Create the migration file:

   alembic/versions/0004_description.py
   

2. Use raw SQL for idempotency:

   from alembic import op
   
   revision = "0004"
   down_revision = "0003"
   
   def upgrade() -> None:
       # For new enums:
       op.execute("""
           DO $$ BEGIN
               CREATE TYPE my_enum AS ENUM ('a', 'b');
           EXCEPTION WHEN duplicate_object THEN null;
           END $$
       """)
       # For new tables:
       op.execute("""
           CREATE TABLE IF NOT EXISTS my_table (...)
       """)
       # For new indexes:
       op.execute("CREATE INDEX IF NOT EXISTS ix_name ON table (col)")
       # For adding columns:
       op.execute("""
           DO $$ BEGIN
               ALTER TABLE my_table ADD COLUMN new_col TEXT DEFAULT '';
           EXCEPTION WHEN duplicate_column THEN null;
           END $$
       """)
   
   def downgrade() -> None:
       op.execute("DROP INDEX IF EXISTS ix_name")
       op.execute("DROP TABLE IF EXISTS my_table")
       op.execute("DROP TYPE IF EXISTS my_enum")
   

3. Rebuild and test:

   docker compose up --build
   

   To test from a completely fresh database:

   docker compose down -v && docker compose up --build
   

Important Notes

• Do NOT use op.create_table() or sa.Enum() — SQLAlchemy's event system can fire CREATE TYPE even with create_type=False, causing failures on re-run
• Always write raw SQL with PostgreSQL idempotency guards
• Set down_revision to chain from the previous migration's revision
• Data migrations (like 0003) should use op.get_bind() + sa.text() for queries

Phased Roadmap

Phase 1 — Skeleton & Dev Environment ✓

• Initialize Python project (pyproject.toml, Quart app scaffold)
• Initialize Vue.js project (Vite-based, inside frontend/)
• Set up Dockerfile (multi-stage: build Vue, serve with Quart)
• Docker Compose stack with Ollama service
• Quart serves Vue static build + /api/health endpoint
• Database setup (PostgreSQL 16, asyncpg, SQLAlchemy 2.0, Alembic)

Phase 2 — Notes CRUD + UX ✓

• Database model for notes (title, body, tags[], parent_id, timestamps)
• REST API: create, read, update, delete, list notes with pagination
• Vue views: note list, note editor (markdown), note viewer (rendered)
• Search (ILIKE on title/body) and tag filtering (hierarchical via unnest)
• Inline #tag extraction from body text (backend regex, skips code fences)
• Hierarchical tag filtering (#project matches project and project/*)
• Dark/light theming with CSS custom properties + toggle + localStorage
• App header with navigation and theme toggle
• Tag pills (clickable + dismissible) on cards, viewer, and list filter bar
• Pagination bar with prev/next and page numbers
• Sort controls (field + asc/desc)
• Toast notifications (success/error, 3s auto-dismiss)
• Ctrl+S save shortcut in editor
• Unsaved changes guard (route leave + beforeunload)
• DOMPurify sanitization on rendered markdown
• Inline tag linkification in rendered markdown (clickable #tag links)

Phase 3 — Tasks CRUD + Wikilinks ✓

• Task model with status (todo/in_progress/done) and priority (none/low/medium/high) enums
• Alembic migration for tasks table with PG enums and indexes
• REST API: full CRUD + PATCH status toggle + filter by status/priority/note_id/tags
• Task-Note linking via optional note_id FK
• Vue views: task list (search, status/priority filters, sort, pagination), editor (note-link autocomplete, Ctrl+S, dirty guard), viewer (rendered markdown)
• StatusBadge (clickable, cycles status), PriorityBadge, TaskCard components
• Obsidian-style wikilinks: [[Title]] and [[Title|Display]] in rendered markdown
• Wikilink click handling resolves notes by title via /api/notes/by-title
• "Linked Tasks" section on NoteViewerView with inline status toggling
• Theme variables for status/priority/wikilink/overdue colors (light + dark)

Phase 3.5 — Note-Task Integration + Bug Fixes ✓

• Task-Note companion link: Every task auto-creates a companion note on creation
• Bidirectional title sync: Renaming task syncs to companion note and vice versa
• Cascade delete: Deleting a task deletes its companion note (and vice versa)
• Wikilink auto-create: Clicking [[New Page]] creates the note if it doesn't exist
• Convert note to task: Button on note viewer, creates task with companion note, deletes original
• Backlinks system: "What links here" section on note and task viewers
• Rendered markdown previews: NoteCard/TaskCard show rendered markdown (links/images stripped)
• Tag autocomplete Tab cycling: Tab cycles through suggestions, single match accepts immediately
• HomeView error isolation: Notes and tasks load independently (one failure doesn't break both)
• SPA routing fix: Replaced catch-all route with 404 error handler to prevent API interception
• 500 error handler: JSON error responses for API routes, traceback logging
• Idempotent migrations: All migrations rewritten to raw SQL with IF NOT EXISTS guards
• Auto-migration on startup: Dockerfile runs alembic upgrade head before starting app
• Data migration 0003: Creates companion notes for pre-existing tasks

Phase 4 — LLM Integration (next)

• Ollama client in the backend (async HTTP via httpx/aiohttp)
• API endpoints for LLM features (summarize note, generate tasks from note, freeform chat)
• Vue components for LLM interactions (chat panel, summarize button, etc.)
• Configurable LLM endpoint + model selection in app settings

Phase 5 — Polish & Production Hardening

• Authentication (single-user or multi-user, TBD)
• Docker Swarm production stack (secrets, volumes, networking)
• Backup/restore strategy for data
• UI/UX refinements, responsive design
• Error handling, logging, monitoring

Future / Stretch

• WebSocket streaming for LLM responses
• Tagging/labeling system with LLM-suggested tags
• Calendar/timeline view for tasks
• Import/export (Markdown files, JSON)
• Plugin/extension system

Development Workflow

• All development and testing done via Docker: docker compose up --build
• No local dependency installation — everything containerized
• Frontend dev: Vite dev server with proxy to Quart (via Docker)
• Production build: Dockerfile multi-stage — Vite builds Vue into static files, Quart serves them
• To reset database: docker compose down -v && docker compose up --build

Open Questions

• Authentication model: single-user (password-only) vs multi-user?
• Should LLM streaming use WebSockets from Phase 4 or defer to Phase 5?

Current Status

Phase: Phase 3.5 complete. Note-task companion system, wikilink auto-create, backlinks, and bug fixes fully implemented.

• Full notes CRUD with markdown editing, rendering, and wikilinks
• Full tasks CRUD with status/priority enums, filters, companion note linking
• Automatic companion note creation for every task
• Bidirectional title sync and cascade delete between tasks and notes
• Convert note to task functionality
• Backlinks system showing "what links here" for notes and tasks
• Wikilink clicks auto-create missing notes
• Rendered markdown previews on list cards
• Tag autocomplete with Tab cycling
• Idempotent raw SQL migrations with auto-run on startup
• Dark/light theme with status/priority/wikilink color variables
• Ready for Phase 4: LLM Integration