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Draw price lines, trendlines, zones, and event markers directly on a stock's price chart — reach for it whenever you'd otherwise describe a level, pattern, or event in prose. Renders live on MarketView and as a clickable preview card in any other chat.
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决定是否安装前，请先阅读 SKILL.md，以及 SkillsMP 当前展示的配套文件。
用 Codex 或 Claude 帮你安装 复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。
直接命令不会经过审查 Prompt；运行前请先检查来源。
npx skills add https://github.com/ginlix-ai/LangAlpha --skill chart-annotation命令会保持在同一行。复制前请横向滚动并检查完整内容。
想先保存到本地？可下载 SkillsMP 当前能够提供的文件。
基于 SOC 职业分类
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| name | chart-annotation |
| description | Draw price lines, trendlines, zones, and event markers directly on a stock's price chart — reach for it whenever you'd otherwise describe a level, pattern, or event in prose. Renders live on MarketView and as a clickable preview card in any other chat. |
You want to call out a technical level, a pattern, or an event on a stock's price chart. Drawing directly on the chart is almost always clearer than describing it in prose. Reach for this skill whenever you would otherwise say "look at the level around 205" or "notice the downtrend from October to December".
MarketView is the app's live, TradingView-style price chart page (pan, zoom, switch timeframes). You do not need the user to be on it to annotate. If they are, the drawing appears on their live chart immediately. If they are in any other chat, the same drawing renders as a clickable preview card that expands into MarketView — so annotate freely whenever it helps, then mention the user can click it to open the full chart.
This skill provides two tools:
draw_chart_annotation — add a single annotation to a chart.manage_chart_annotations — list, remove, or clear annotations.There are two ways to show price information visually — pick by what the user needs:
The two aren't exclusive: draw on the live chart for a quick look, render a Python chart when it belongs in a written artifact, or do both.
SYMBOL:timeframeEvery annotation belongs to a chart identified by its ticker + timeframe
(e.g. NVDA:1day) — that pair is the chart's id:
symbol + timeframe again to add to / edit that same
chart (annotations accumulate on it).AAPL:1day and AAPL:1hour,
or AAPL:1day and MSFT:1day), each rendered as its own preview.Always pass the ticker the user is discussing. timeframe defaults to
1day; set it to match the interval the user is viewing (one of 1min,
5min, 15min, 30min, 1hour, 4hour, 1day). Annotations are scoped to
that one chart instance — a line drawn on NVDA:1day does not appear on
NVDA:1hour.
Time format (any annotation with a time field). Pass ISO 8601 datetimes
(e.g. 2024-11-14T00:00:00Z) aligned to a bar on the chart — for daily bars,
midnight UTC of that day is safest. A time that doesn't land on a bar still
renders but may look offset. Applies to trendline, marker, vertical_line,
text, event, and fib_retracement.
A <chart-selection> block in the user's turn means they selected something on
the chart and sent it to you. Its selection_type is one of:
region — a time×price box. Bounds come as a time range + price range, with
the OHLCV bars inside it.price_level — a single horizontal price they tapped.The user may send several blocks in one turn — treat each independently.
A block may carry a User note: line: that is the user's own comment about
that selection (separate from their message text) — let it steer what you
look for there.
Analyze each bounded area (lean on the supplied bars and/or your market-data
path), then, when it helps, draw your read back onto the same symbol +
timeframe with draw_chart_annotation — a rectangle over a region, or a
price_line at a price_level. Each block already spells out the matching
draw_chart_annotation(...) call; adjust it to the level or zone your analysis
actually lands on.
draw_chart_annotation takes an annotation object discriminated by its
type field.
price_line — horizontal levelUse for anything flat on the y-axis: support, resistance, a target, a stop, an analyst price target, a 52-week high.
{
"type": "price_line",
"price": 205.0,
"label": "Resistance 205",
"style": "dashed"
}
trendline — two anchor pointsUse to connect two (time, price) points on the chart: channel tops,
pattern boundaries, connecting highs/lows across dates.
{
"type": "trendline",
"point1": {"time": "2024-10-16T00:00:00Z", "price": 145.2},
"point2": {"time": "2024-12-20T00:00:00Z", "price": 138.7},
"label": "Descending trend"
}
marker — single-bar eventUse for a callout at one specific date: earnings beat, entry signal, news event, grade change.
{
"type": "marker",
"time": "2024-11-14T00:00:00Z",
"shape": "arrowUp",
"position": "belowBar",
"text": "Earnings beat"
}
shape options: arrowUp, arrowDown, circle, square.
position options: aboveBar, belowBar, inBar.
vertical_line — a moment in timeUse to mark a single date across the whole chart: an earnings date, a split, an FOMC meeting, the start of a move.
{
"type": "vertical_line",
"time": "2024-11-14T00:00:00Z",
"label": "Earnings",
"style": "dashed"
}
rectangle — a zoneUse for supply/demand zones, consolidation ranges, or any box over a
region of the chart. point1 and point2 are two opposite corners (the
fill is translucent so candles stay visible).
{
"type": "rectangle",
"point1": {"time": "2024-10-16T00:00:00Z", "price": 150.0},
"point2": {"time": "2024-11-20T00:00:00Z", "price": 140.0},
"label": "Demand zone"
}
text — a free-floating labelUse for a callout that isn't tied to a marker or level. Anchored at a
(time, price) point.
{
"type": "text",
"time": "2024-11-14T00:00:00Z",
"price": 205.0,
"text": "Breakout"
}
event — news/event badge with detailUse when a callout needs more than a one-line label: an earnings report, an
acquisition, an analyst upgrade, a product launch. Anchored at a (time, price) point, it shows a short title badge on the chart; the detail (a
few sentences) is revealed on hover (desktop) or tap (mobile). Prefer this
over marker/text when you want to explain why the event matters.
{
"type": "event",
"time": "2024-11-14T00:00:00Z",
"price": 205.0,
"title": "Q3 earnings beat",
"detail": "Reported EPS of $1.40 vs $1.25 consensus and raised full-year guidance ~5%. Shares gapped up the next session on the print and the brighter outlook."
}
fib_retracement — Fibonacci levelsUse to map retracement targets of a move. Pass the two ends of the swing (e.g. swing low → swing high); standard levels (0, 0.236, 0.382, 0.5, 0.618, 0.786, 1.0) are drawn between them automatically.
{
"type": "fib_retracement",
"point1": {"time": "2024-10-16T00:00:00Z", "price": 100.0},
"point2": {"time": "2024-12-20T00:00:00Z", "price": 200.0},
"label": "Oct–Dec move"
}
manage_chart_annotations covers list / remove / clear_all:
# See what's there
manage_chart_annotations(symbol="NVDA", action="list")
# Remove specific ones (get ids from `list`)
manage_chart_annotations(symbol="NVDA", action="remove", ids=["ann_ab12..."])
# Wipe everything for the symbol
manage_chart_annotations(symbol="NVDA", action="clear_all")
remove requires a non-empty ids list. The tool will reject an empty
call.clear_all must not be given ids. Use remove for partial deletion.draw_chart_annotation three times.clear_all before drawing a fresh set.