Add character stats window design document
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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docs/plans/2026-02-26-character-stats-design.md
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docs/plans/2026-02-26-character-stats-design.md
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# Character Stats Window - Design Document
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## Overview
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Add a live character stats window to the Dereth Tracker map interface, styled as an Asheron's Call game UI replica. Accessible via a "Char" button on each player in the list, alongside the existing Chat, Stats, and Inventory buttons.
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**Scope:** MosswartOverlord only (database, backend, frontend). The plugin implementation is a separate follow-up with a handoff spec.
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---
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## Architecture: Single Event + JSONB Table with Indexed Columns
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One new `character_stats` event type from the plugin. Backend stores in a single `character_stats` table with key columns extracted for efficient SQL queries (level, XP, luminance) plus a `stats_data` JSONB column for the full payload. In-memory cache for live display, DB for persistence.
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---
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## Database Schema
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New table `character_stats`:
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```sql
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CREATE TABLE character_stats (
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character_name VARCHAR(255) NOT NULL,
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timestamp TIMESTAMPTZ NOT NULL DEFAULT NOW(),
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level INTEGER,
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total_xp BIGINT,
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unassigned_xp BIGINT,
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luminance_earned BIGINT,
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luminance_total BIGINT,
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deaths INTEGER,
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stats_data JSONB NOT NULL,
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PRIMARY KEY (character_name)
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);
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```
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Single row per character, upserted on each 10-minute update.
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### JSONB `stats_data` Structure
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```json
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{
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"attributes": {
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"strength": {"base": 290, "creation": 100},
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"endurance": {"base": 200, "creation": 100},
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"coordination": {"base": 240, "creation": 100},
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"quickness": {"base": 220, "creation": 10},
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"focus": {"base": 250, "creation": 100},
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"self": {"base": 200, "creation": 100}
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},
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"vitals": {
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"health": {"base": 341},
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"stamina": {"base": 400},
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"mana": {"base": 300}
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},
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"skills": {
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"war_magic": {"base": 533, "training": "Specialized"},
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"melee_defense": {"base": 488, "training": "Specialized"},
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"life_magic": {"base": 440, "training": "Trained"},
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"arcane_lore": {"base": 10, "training": "Untrained"}
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},
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"allegiance": {
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"name": "Knights of Dereth",
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"monarch": {"name": "KingName", "race": 1, "rank": 0, "gender": 0},
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"patron": {"name": "PatronName", "race": 2, "rank": 5, "gender": 1},
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"rank": 10,
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"followers": 5
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},
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"race": "Aluvian",
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"gender": "Male",
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"birth": "2018-03-15 14:22:33",
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"current_title": 42,
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"skill_credits": 0
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}
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```
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---
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## Backend
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### WebSocket Handler (`main.py`)
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New `character_stats` event type in the `/ws/position` handler. Same pattern as vitals:
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1. **Validate** with `CharacterStatsMessage` Pydantic model
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2. **Cache** in `live_character_stats: Dict[str, dict]` for instant access
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3. **Persist** to `character_stats` table via upsert (`INSERT ... ON CONFLICT (character_name) DO UPDATE`)
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4. **Broadcast** to browser clients via `_broadcast_to_browser_clients()`
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### Pydantic Model
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```python
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class CharacterStatsMessage(BaseModel):
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character_name: str
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timestamp: datetime
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level: Optional[int]
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total_xp: Optional[int]
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unassigned_xp: Optional[int]
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luminance_earned: Optional[int]
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luminance_total: Optional[int]
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deaths: Optional[int]
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race: Optional[str]
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gender: Optional[str]
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birth: Optional[str]
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current_title: Optional[int]
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skill_credits: Optional[int]
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attributes: Optional[dict]
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vitals: Optional[dict]
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skills: Optional[dict]
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allegiance: Optional[dict]
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```
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### HTTP Endpoint
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```
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GET /api/character-stats/{name}
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```
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Returns latest stats for a character. Checks in-memory cache first, falls back to DB. Used when a browser opens a character window after the initial broadcast.
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### Test Endpoint (temporary, for development)
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```
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POST /api/character-stats/test
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```
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Accepts a mock `character_stats` payload, processes it through the same pipeline (cache + DB + broadcast). Allows full end-to-end testing without the plugin running.
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---
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## Frontend
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### Character Button
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New "Char" button in the player list, same pattern as Chat/Stats/Inventory:
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```javascript
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const charBtn = document.createElement('button');
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charBtn.className = 'char-btn';
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charBtn.textContent = 'Char';
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// click -> showCharacterWindow(playerData.character_name)
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```
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### `showCharacterWindow(name)`
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Uses existing `createWindow` helper. Window size: 450x650px (tall and narrow like the game panel).
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**Data loading:**
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1. On open, fetch `GET /api/character-stats/{name}`
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2. Listen for `character_stats` WebSocket broadcasts to update live
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3. Vitals bars update from existing `vitals` WebSocket messages (5-second stream)
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4. If no data exists, show "Awaiting character data..." placeholder
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### Window Layout
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Stacked vertically, mimicking the AC character panel:
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1. **Header** - Character name, level, race/gender, title. Gold text on dark background.
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2. **Attributes panel** - 3x2 grid:
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```
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Strength 290 Quickness 220
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Endurance 200 Focus 250
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Coordination 240 Self 200
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```
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Base values shown, creation values in smaller text.
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3. **Vitals bars** - Red (HP), yellow (Stamina), blue (Mana) bars with current/max numbers. Live-updating from existing vitals stream.
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4. **Skills section** - Scrollable, grouped by training level:
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- **Specialized** (gold text)
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- **Trained** (white text)
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- **Untrained** (grey text)
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Each shows skill name + level.
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5. **Allegiance section** - Monarch, patron, rank, followers count.
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6. **Footer** - XP, unassigned XP, luminance, deaths, birth date.
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---
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## Styling: AC Game UI Replica
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Color palette drawn from the Asheron's Call interface:
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```css
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--ac-bg: #1a1410; /* Dark brown/black background */
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--ac-panel: #2a2218; /* Panel background */
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--ac-border: #8b7355; /* Gold/brown borders */
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--ac-header: #d4a843; /* Gold header text */
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--ac-text: #c8b89a; /* Parchment-colored body text */
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--ac-text-dim: #7a6e5e; /* Dimmed/secondary text */
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--ac-specialized: #d4a843; /* Gold for specialized skills */
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--ac-trained: #c8b89a; /* Light for trained */
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--ac-untrained: #5a5248; /* Grey for untrained */
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```
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Vitals bar colors:
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- Health: `#8b1a1a` bg, `#cc3333` fill (red)
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- Stamina: `#8b7a1a` bg, `#ccaa33` fill (yellow)
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- Mana: `#1a3a8b` bg, `#3366cc` fill (blue)
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Panel styling:
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- Subtle inner border with gold/brown
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- CSS gradient background to simulate parchment grain (no image files)
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- Section dividers as thin gold lines
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- Skill rows with subtle hover highlight
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- Compact padding (information-dense like the game UI)
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---
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## Plugin Event Contract
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The plugin will send a `character_stats` message via the existing WebSocket connection:
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- **Frequency:** On login + every 10 minutes
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- **Channel:** Existing `/ws/position` WebSocket
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```json
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{
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"type": "character_stats",
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"timestamp": "2026-02-26T12:34:56Z",
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"character_name": "Barris",
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"level": 275,
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"race": "Aluvian",
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"gender": "Male",
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"birth": "2018-03-15 14:22:33",
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"total_xp": 191226310247,
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"unassigned_xp": 0,
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"skill_credits": 0,
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"luminance_earned": 500000,
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"luminance_total": 1500000,
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"deaths": 3175,
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"current_title": 42,
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"attributes": {
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"strength": {"base": 290, "creation": 100},
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"endurance": {"base": 200, "creation": 100},
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"coordination": {"base": 240, "creation": 100},
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"quickness": {"base": 220, "creation": 10},
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"focus": {"base": 250, "creation": 100},
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"self": {"base": 200, "creation": 100}
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},
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"vitals": {
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"health": {"base": 341},
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"stamina": {"base": 400},
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"mana": {"base": 300}
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},
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"skills": {
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"war_magic": {"base": 533, "training": "Specialized"},
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"melee_defense": {"base": 488, "training": "Specialized"},
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"life_magic": {"base": 440, "training": "Trained"},
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"arcane_lore": {"base": 10, "training": "Untrained"}
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},
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"allegiance": {
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"name": "Knights of Dereth",
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"monarch": {"name": "KingName", "race": 1, "rank": 0, "gender": 0},
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"patron": {"name": "PatronName", "race": 2, "rank": 5, "gender": 1},
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"rank": 10,
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"followers": 5
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}
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}
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```
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---
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## Data Flow
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```
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Plugin (every 10 min + on login)
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│ character_stats JSON via /ws/position
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▼
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Backend handler
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│ Pydantic validation
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├──▶ live_character_stats cache (in-memory)
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├──▶ character_stats table (upsert)
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└──▶ _broadcast_to_browser_clients()
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│
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▼
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/ws/live → Browser
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│ message.type === 'character_stats'
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▼
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Character window updates live
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Browser can also fetch on demand:
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GET /api/character-stats/{name} → cache → DB fallback
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```
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Vitals (HP/Stam/Mana) update separately via existing 5-second vitals stream.
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---
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## Files Modified
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| File | Changes |
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|------|---------|
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| `main.py` | New `character_stats` handler, Pydantic model, in-memory cache, HTTP endpoint, test endpoint |
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| `db_async.py` | New `character_stats` table definition |
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| `static/script.js` | New "Char" button, `showCharacterWindow()`, WebSocket listener for `character_stats` |
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| `static/style.css` | AC-themed character window styles |
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---
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## What's NOT in Scope
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- Plugin implementation (separate follow-up with handoff spec)
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- Historical stat tracking over time (table supports it but no UI yet)
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- Skill icons from the game (text-only for v1)
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- Title name resolution (show title ID, not name)
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- Vassal list display (just monarch/patron/rank/followers)
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