Data Flow¶

Current Flow (Working)¶

Pine Script Indicators
  │  Produce visual elements (labels, lines, boxes, tables)
  ▼
TradingView Chart (Chrome)
  │  Renders indicators on chart surface
  ▼
Chrome DevTools Protocol (localhost:9222)
  │  JavaScript evaluation in page context
  ▼
TradingView MCP Server (Node.js, stdio)
  │  Extracts Pine graphics via internal API paths
  │  Returns compact JSON to Claude
  ▼
Claude Code (LLM Agent)
  │  Interprets signals, makes decisions
  ▼
MCP Tool Calls
  │  chart_set_symbol, replay_trade, etc.
  ▼
TradingView Chart (state changes)

Pine Graphics Extraction¶

The core data pipeline reads indicator output via undocumented TradingView internals:

model().dataSources()
  └─ each source._graphics._primitivesCollection
       ├─ dwglines.get('lines')      → line.new() output
       ├─ dwglabels.get('labels')    → label.new() output
       ├─ dwgboxes.get('boxes')      → box.new() output
       └─ dwgtablecells.get('tableCells') → table.new() output

Key API paths (discovered via live probing): - window.TradingViewApi._activeChartWidgetWV.value() — Main chart API - window.TradingViewApi._chartWidgetCollection — Multi-pane charts - window.TradingViewApi._replayApi — Replay mode - window.TradingViewApi._alertService — Alerts

Planned Flow (With Broker Layer)¶

Claude Code
  │  Decides on trade setup
  ▼
broker_place_order (new MCP tool)
  │  Direct API call to broker
  ▼
Tradovate / IBKR API
  │  Order routed to exchange
  ▼
broker_get_positions (new MCP tool)
  │  Read back fill confirmations
  ▼
FATBot Dashboard
  │  Display live P&L, positions

Context Budget¶

Operation	Bytes	Notes
quote_get	~200B	Single price snapshot
data_get_study_values	~500B	All visible indicator values
data_get_ohlcv (summary)	~500B	Compact stats
data_get_ohlcv (full)	~8KB	100 bars
data_get_pine_labels	~2-5KB	50 labels max per study
data_get_pine_lines	~1-3KB	Deduplicated levels
data_get_pine_tables	~1-4KB	Formatted rows
capture_screenshot	~300B	Returns file path only
pine_get_source	up to 200KB	Full Pine script (use sparingly)

Target: Typical "analyze chart" workflow = 5-10KB total.