Expand model tag support: add GLM-5.1, simplify Anthropic IDs, scan tags anywhere in message
- Flink update_bars debouncing - update_bars subscription idempotency bugfix - Price decimal correction bugfix of previous commit - Add GLM-5.1 model tag alongside renamed GLM-5 - Use short Anthropic model IDs (sonnet/haiku/opus) instead of full version strings - Allow @tags anywhere in message content, not just at start - Return hasOtherContent flag instead of trimmed rest string - Only trigger greeting stream when tag has no other content - Update workspace knowledge base references to platform/workspace and platform/shapes - Hierarchical knowledge base catalog - 151 Trading Strategies knowledge base articles - Shapes knowledge base article - MutateShapes tool instead of workspace patch
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gateway/knowledge/platform/index.md
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gateway/knowledge/platform/index.md
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---
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description: "Platform documentation index: workspace API reference, chart shape types, and MCP sandbox lifecycle."
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tags: [platform, index]
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---
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gateway/knowledge/platform/shapes.md
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gateway/knowledge/platform/shapes.md
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---
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description: "Chart shape types (trend lines, Fibonacci, rectangles, channels, etc.), point requirements, override properties, and WorkspacePatch patterns for adding/modifying/deleting shapes on the TradingView chart."
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---
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# Chart Shapes
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Shapes are persistent TradingView chart drawings stored in the `shapes` workspace store. Read them with `WorkspaceRead("shapes")` and create/modify/delete them with `ShapesMutate`. Do **not** use `WorkspacePatch` for shapes — it requires knowledge of the internal path structure and is error-prone.
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Always read `chartState` first to get the current `symbol` and visible `start_time`/`end_time` for placing points correctly.
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---
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## Shape Object
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```json
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{
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"id": "string — unique ID you assign (e.g. 'trendline-btc-1')",
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"type": "string — see type table below",
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"points": [{ "time": 1700000000, "price": 45000.0, "channel": "optional" }],
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"color": "#2962FF",
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"line_width": 2,
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"line_style": "solid",
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"properties": {},
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"symbol": "BTC/USDT.BINANCE",
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"created_at": 1700000000,
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"modified_at": 1700000000
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}
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```
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- `line_style`: `"solid"` | `"dashed"` | `"dotted"`
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- `properties`: passed directly as TradingView overrides (see [Drawings Overrides](https://www.tradingview.com/charting-library-docs/latest/customization/overrides/Drawings-Overrides))
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- `time` values must be Unix timestamps in **seconds**; they are snapped to the nearest candle boundary automatically
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---
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## Supported Shape Types
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| `type` | Description | Points |
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|---|---|---|
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| `trend_line` | Trend line between two price/time points | 2 |
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| `horizontal_line` | Horizontal price level across the chart | 1 |
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| `vertical_line` | Vertical time marker | 1 |
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| `rectangle` | Price/time rectangle (two corners) | 2 |
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| `circle` | Circle centered at first point, edge at second | 2 |
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| `arrow` | Arrow from point 1 to point 2 | 2 |
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| `fib_retracement` | Fibonacci retracement levels between two points | 2 |
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| `fib_trend_ext` | Trend-based Fibonacci extension (A→B→C) | 3 |
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| `parallel_channel` | Parallel channel (two-line + channel width) | 3 |
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| `pitchfork` | Andrews pitchfork (handle + two tines) | 3 |
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| `gannbox_fan` | Gann fan from a pivot point | 2 |
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| `path` | Free-form polyline through 2+ points | 2+ |
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| `text` | Text label anchored at a price/time location | 1 |
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| `head_and_shoulders` | Head and shoulders pattern overlay | 7 |
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> For the full TradingView drawing catalog (including Elliott waves, patterns, annotations, etc.) see [Drawings List](https://www.tradingview.com/charting-library-docs/latest/ui_elements/drawings/Drawings-List/) and [CreateShapeOptions](https://www.tradingview.com/charting-library-docs/latest/api/interfaces/Charting_Library.CreateShapeOptions/#shape).
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---
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## ShapesMutate Patterns
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Use `ShapesMutate` — not `WorkspacePatch` — to add, update, or remove shapes. Any combination of operations can be sent in a single call.
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### Add a shape
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```
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ShapesMutate({
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add: [{
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id: "trendline-1",
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type: "trend_line",
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points: [
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{ time: 1700000000, price: 42000 },
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{ time: 1700172800, price: 45000 }
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],
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color: "#2962FF",
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line_width: 2,
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line_style: "solid",
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symbol: "BTC/USDT.BINANCE"
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}]
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})
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```
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### Update a property
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```
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ShapesMutate({ update: [{ id: "trendline-1", color: "#FF5722" }] })
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```
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### Delete a shape
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```
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ShapesMutate({ remove: ["trendline-1"] })
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```
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### Combined (add + remove in one call)
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```
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ShapesMutate({
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add: [{ id: "hline-support", type: "horizontal_line", points: [{ time: 0, price: 42000 }], symbol: "BTC/USDT.BINANCE" }],
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remove: ["trendline-1"]
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})
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```
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---
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## Override Properties
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These map to TradingView drawing override keys passed in the `properties` field:
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| Property key | Type | Notes |
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|---|---|---|
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| `linecolor` | string (hex) | Same as top-level `color` — prefer `color` |
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| `linewidth` | number | Same as top-level `line_width` — prefer `line_width` |
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| `linestyle` | number | 0 = solid, 1 = dashed, 2 = dotted — prefer `line_style` |
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| `fillBackground` | boolean | Fill enclosed areas (rectangles, circles, etc.) |
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| `backgroundColor` | string (hex) | Fill color when `fillBackground` is true |
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| `transparency` | number | Fill transparency 0–100 |
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| `extendLeft` | boolean | Extend line left (rays, horizontal lines) |
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| `extendRight` | boolean | Extend line right |
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| `showLabel` | boolean | Show price/time label on the shape |
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For the complete per-type override reference, consult [Drawings Overrides](https://www.tradingview.com/charting-library-docs/latest/customization/overrides/Drawings-Overrides).
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---
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## Notes
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- **ID collisions**: read the `shapes` store first to check existing IDs before adding
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- **Symbol filter**: the web client only renders shapes where `shape.symbol` matches the current chart symbol — always set it
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- **Horizontal lines** only need a `price` in their single point; `time` is ignored
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- **Vertical lines** only need a `time` in their single point; `price` is ignored
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- **Text shapes**: set `properties.text` to the label string
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@@ -1,5 +1,5 @@
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---
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description: "Workspace store schema, available stores, and WorkspaceRead/WorkspacePatch usage for reading and updating the user's UI state."
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description: "Workspace store schema: chartState (symbol/period/time range), indicators, shapes (chart drawings/annotations — see platform/shapes), and WorkspaceRead/WorkspacePatch usage."
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---
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# Workspace
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@@ -70,20 +70,7 @@ A flat map of `indicator_id → IndicatorInstance`. Each entry represents one st
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{ "shapes": { "<shape_id>": Shape } }
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```
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Each `Shape` has:
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| Field | Type | Description |
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|---|---|---|
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| `id` | string | Unique shape ID |
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| `type` | string | Drawing type (e.g. `"trend_line"`, `"horizontal_line"`, `"rectangle"`) |
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| `points` | array | Control points: `{ time: unix_ts, price: number, channel?: string }` |
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| `color` | string? | Hex color |
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| `line_width` | number? | Line thickness |
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| `line_style` | string? | `"solid"`, `"dotted"`, `"dashed"` |
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| `properties` | object? | Additional type-specific properties |
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| `symbol` | string? | Symbol the shape belongs to |
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| `created_at` | number? | Unix timestamp |
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| `modified_at` | number? | Unix timestamp |
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For the complete shapes reference — all supported types, point counts, override properties, and WorkspacePatch examples — see **`platform/shapes`** (`MemoryLookup({page: "platform/shapes"})`).
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---
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