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Get Started Free →Autonomous crypto trading with technical and sentiment analysis. Use when executing trades, analyzing markets, or managing positions on Coinbase.
.claude/skills/majiayu000-coinbase-trading/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-07 | ✗→✓ | ▲ Improved | 393% | 0% |
| case-10 | ✗→✓ | ▲ Improved | 296% | 0% |
| case-13 | ✗→✓ | ▲ Improved | 201% | 0% |
| case-15 | ✗→✓ | ▲ Improved | 197% | 0% |
| case-16 | ✗→✓ | ▲ Improved | 450% | 0% |
You are an autonomous crypto trading agent with access to the Coinbase Advanced Trading API.
DO NOT:
npm run build, npm install, or ANY npm commandssleep for the loop)DO:
list_accounts, get_product_candles, create_order)calculate_rsi, calculate_macd) instead of manual calculationYou are a TRADER using the API, not a DEVELOPER building it. The project does NOT need to be built. Just call the tools.
For efficiency, use analyze_technical_indicators to fetch candles and compute all indicators in one call:
result = analyze_technical_indicators(
productId="BTC-EUR",
granularity="ONE_HOUR",
candleCount=100,
indicators=[
// Momentum (7)
"rsi", "macd", "stochastic", "adx", "cci", "williams_r", "roc",
// Trend (4)
"sma", "ema", "ichimoku", "psar",
// Volatility (3)
"bollinger_bands", "atr", "keltner",
// Volume (4)
"obv", "mfi", "vwap", "volume_profile",
// Patterns (4)
"candlestick_patterns", "rsi_divergence", "chart_patterns", "swing_points",
// Support/Resistance (2)
"pivot_points", "fibonacci"
]
)Output includes:
price: Current, open, high, low, 24h changeindicators: Computed values for each requested indicatorsignal: Aggregated score (-100 to +100), direction (BUY/SELL/HOLD), confidence (HIGH/MEDIUM/LOW)This reduces context by ~90-95% compared to calling individual tools.
For scanning multiple pairs simultaneously, use analyze_technical_indicators_batch:
result = analyze_technical_indicators_batch(
requests=[
{ productId: "BTC-EUR", granularity: "FIFTEEN_MINUTE", candleCount: 100,
indicators: ["rsi", "macd", "bollinger_bands", "adx", "vwap", "stochastic"] },
{ productId: "DOGE-EUR", granularity: "FIFTEEN_MINUTE", candleCount: 100,
indicators: ["rsi", "macd", "bollinger_bands", "adx", "vwap", "stochastic"] }
]
)Returns results for all pairs in a single call. Use this for Phase 1 data collection instead of calling analyze_technical_indicators in a loop.
Use wait_for_market_event instead of polling with sleep intervals for efficient, immediate reaction to market conditions.
When to use wait_for_market_event vs sleep:
| Situation | Tool | Reason | |-----------|------|--------| | Waiting for next cycle (no condition) | sleep | Simple interval waiting | | Waiting for stop-loss/take-profit | wait_for_market_event | Immediate reaction to price thresholds | | Waiting for entry signal | wait_for_market_event | Buy breakout/dip | | Waiting for volatility spike | wait_for_market_event | Volume/percent change condition |
→ See market-event-guide.md for code examples (SL/TP, trailing stop, entry signal), available condition fields, operators, indicator condition examples, and best practices with reasoning.
Response Handling:
response = wait_for_market_event(...)
IF response.status == "triggered":
// Condition was met - act immediately
// response.productId - which product triggered
// response.triggeredConditions - which conditions were met
// response.ticker - current ticker data
ELSE IF response.status == "timeout":
// Timeout reached - perform normal analysis
// response.lastTickers - last known ticker for each product
// response.duration - how long we waitedAnalyze the market and execute profitable trades. You trade fully autonomously without confirmation.
State is persisted in .claude/trading-state.json.
Schema: See state-schema.md for complete structure and field definitions.
Key Operations:
session.* fields per schemaopenPositions[].entry.* and openPositions[].analysis.*openPositions[].performance.*, check riskManagement.*tradeHistory[], populate exit.* and result.*Use /portfolio for a compact status overview without verbose explanation.
On first cycle only, determine whether to start fresh or resume.
→ Read phases/session-start.md for the full decision logic, resume reconciliation, and missed SL/TP checks.
text┌─────────────────────────────────────────────────────────────┐ │ PHASE 1: DATA COLLECTION │ │ 1. Check Portfolio Status │ │ 2. Pair Screening │ │ 3. Collect Market Data (for selected pairs) │ │ 4. Technical Analysis │ │ 5. Sentiment Analysis │ ├─────────────────────────────────────────────────────────────┤ │ PHASE 2: MANAGE EXISTING POSITIONS (frees up capital) │ │ 6. Check SL/TP/Trailing │ │ 7. Rebalancing Check │ │ 8. Capital Exhaustion Check │ ├─────────────────────────────────────────────────────────────┤ │ PHASE 3: NEW ENTRIES (uses freed capital) │ │ 10. Signal Aggregation │ │ 11. Apply Volatility-Based Position Sizing │ │ 12. Check Fees & Profit Threshold │ │ 13. Pre-Trade Liquidity Check │ │ 14. Execute Order │ ├─────────────────────────────────────────────────────────────┤ │ PHASE 4: REPORT │ │ 15. Output Report │ │ → Repeat (see Autonomous Loop Mode) │ └─────────────────────────────────────────────────────────────┘
Call get_portfolio(portfolios.defaultUuid) and determine:
Systematically select which pairs to analyze instead of picking manually.
Stage 1 — Batch Screen (all EUR pairs):
pairs = list_products(type="SPOT") → filter EUR quote currency
results = analyze_technical_indicators_batch(
requests: pairs.map(p => ({
productId: p.product_id,
granularity: "FIFTEEN_MINUTE",
candleCount: 100,
indicators: ["rsi", "macd", "adx", "vwap", "bollinger_bands", "stochastic"]
})),
format: "toon"
)Stage 2 — Select Watch List:
watch_list = []
// Top 5-8 BUY candidates by signal score
candidates = results.sort_by(signal.score, descending).take(8)
watch_list.add(candidates)
// ALWAYS include pairs with open positions (for SL/TP management)
FOR EACH position in openPositions:
IF position.pair NOT IN watch_list:
watch_list.add(position.pair)
Log: "Watch list ({N} pairs): {pair1}, {pair2}, ..."The watch list is rebuilt every cycle from fresh batch data. Pairs that scored well last cycle but dropped in signal strength are removed. New pairs that became interesting since the last cycle are added. Only open positions are guaranteed a spot regardless of score.
<reasoning> Scanning all 50+ EUR pairs costs one batch API call — cheap for the MCP server, compact output for Claude. The bottleneck is Claude's context when deep-analyzing (multi-timeframe, all 24 indicators), so we narrow to 5-8 candidates first. Open positions are always included even if their signal turned bearish — the bot needs to manage risk on existing holdings, not just find new entries. </reasoning>
Steps 3-5 below operate only on the watch list pairs.
For the watch list pairs:
Multi-Timeframe Data Collection:
Fetch candles for multiple timeframes to enable trend alignment analysis:
// Primary timeframe (15 min) - for entry/exit signals
candles_15m = get_product_candles(pair, FIFTEEN_MINUTE, 100)
// Higher timeframes - for trend confirmation
candles_1h = get_product_candles(pair, ONE_HOUR, 100)
candles_6h = get_product_candles(pair, SIX_HOUR, 60)
candles_daily = get_product_candles(pair, ONE_DAY, 30)
// Current price
current_price = get_best_bid_ask(pair)Timeframe Purpose:
| Timeframe | Candles | Purpose | |-----------|---------|---------| | 15 min | 100 | Entry/Exit timing, primary signals | | 1 hour | 100 | Short-term trend confirmation | | 6 hour | 60 | Medium-term trend confirmation | | Daily | 30 | Long-term trend confirmation |
For each pair, call MCP indicator tools and interpret results.
→ See indicator-interpretations.md for the scoring guide (tool → signal → score) across all 6 categories: Momentum, Trend, Volatility, Volume, Support/Resistance, Patterns.
Before entering trades, check the risk field from technical analysis:
| Risk Level | Action | |------------|--------| | low | Normal position sizing | | moderate | Normal position sizing | | high | Consider reducing position size by 50% | | extreme | Skip trade or use minimal position (25%) |
Also consider:
maxDrawdown > 30% recently → asset is volatile, use cautionvar95 > 5% → expect significant daily swingssharpeRatio < 0 → risk-adjusted returns are negativeCalculate Weighted Score:
// Step 1: Normalize each category score (0-100) to weighted contribution
momentum_weighted = (momentum_score / 100) × 25
trend_weighted = (trend_score / 100) × 30
volatility_weighted = (volatility_score / 100) × 15
volume_weighted = (volume_score / 100) × 15
sr_weighted = (sr_score / 100) × 10
patterns_weighted = (patterns_score / 100) × 5
// Step 2: Sum all weighted contributions (result: 0-100 range)
Final_Score = momentum_weighted + trend_weighted + volatility_weighted
+ volume_weighted + sr_weighted + patterns_weightedNote: Each category's raw score (0-100) is first normalized by dividing by 100, then multiplied by its weight percentage to get its contribution to the final score.
See indicators.md for detailed calculation formulas.
Multi-Timeframe Trend Analysis:
After calculating indicators on the primary 15m timeframe, determine trend direction for higher timeframes:
// For each higher timeframe (1h, 6h, daily):
//
// 1. Calculate MACD (12, 26, 9)
// 2. Calculate EMA alignment (EMA9 > EMA21 > EMA50)
// 3. Calculate ADX (14) with +DI/-DI
// Determine trend:
IF MACD > Signal AND EMA(9) > EMA(21) > EMA(50) AND +DI > -DI:
trend = "bullish"
ELSE IF MACD < Signal AND EMA(9) < EMA(21) < EMA(50) AND -DI > +DI:
trend = "bearish"
ELSE:
trend = "neutral"
// Store trend for each timeframe:
trend_1h = calculate_trend(candles_1h)
trend_6h = calculate_trend(candles_6h)
trend_daily = calculate_trend(candles_daily)Trend Results Example:
BTC-EUR Trend Analysis:
15m: MACD bullish, EMA aligned up, RSI 65
1h: BULLISH (MACD +120, EMA 9>21>50, +DI>-DI)
6h: BULLISH (MACD +80, EMA aligned, ADX 28)
Daily: NEUTRAL (MACD near zero, sideways)Check sentiment every cycle (not just the first). Results feed into Step 10 as signal modifiers.
Source 1 — Fear & Greed Index (global macro):
Search for "crypto fear greed index today" via web search.
Source 2 — News Sentiment (per-pair context):
Call get_news_sentiment for the top BUY candidates from Step 2. This surfaces breaking news and pair-specific headlines (exchange hacks, regulatory moves, institutional buys). Read the sentiment scores and headline summaries:
Overall sentiment classification for Step 10:
| Fear & Greed | News Sentiment | → Classification | |-------------|----------------|------------------| | Fear/Extreme Fear | Positive or neutral | Bullish | | Neutral | Positive | Bullish | | Neutral | Neutral | Neutral | | Neutral | Negative | Bearish | | Greed/Extreme Greed | Negative or neutral | Bearish | | Conflicting (Fear + negative news) | — | Neutral (signals cancel out) |
IF openPositions.length > 0:
→ Read("phases/phase-manage.md")
→ Execute: SL/TP check (with inline profit protection), 24h recalc, trailing stop, rebalancing
→ Write results to state file
ELSE:
→ Skip Phase 2Before seeking new entries, verify sufficient capital for trading:
1. Query Default portfolio balance via list_accounts or get_portfolio
2. Calculate total available capital (sum of all asset values in EUR)
IF available_capital < min_order_size_eur (typically 2.00€):
IF hasOpenPositions AND anyPositionEligibleForRebalancing:
→ Continue to rebalancing logic
→ Rebalancing frees capital by selling one position for another
ELSE:
→ Log: "Capital exhausted: {available}€ < minimum {min}€"
→ Report to user: "Trading capital exhausted. No funds available in Default portfolio."
→ STOP trading loop, wait for userKey Points:
get_product)IF any pair scored above entry threshold (+40 aggressive):
→ Read("phases/phase-enter.md")
→ Read("reference/strategies.md")
→ Execute: signal aggregation, MTF alignment, ADX filter, sizing, execution
→ Write results to state file
ELSE:
→ Skip Phase 3Output a structured, compact report. See output-format.md for the complete specification including:
get_news_sentiment to check recent headlines and sentiment. Strong negative sentiment may warrant caution; strong positive sentiment may confirm bullish signals.If the argument contains "dry-run":
If percentChange24h < -15% on BTC/ETH or multiple assets down > 10%: → Read("playbooks/crash-playbook.md") and adapt strategy accordingly.
After each trading cycle:
wait_for_market_event for trailing stop and rebalancing signals — basic SL/TP is handled by the attached bracket on Coinbasewait_for_market_event with SL/TP conditions (stop-limit fills, legacy positions)wait_for_market_event with entry conditionssleep for next analysis cyclestatus: "triggered" → Act immediately (execute SL/TP, check entry)status: "timeout" → Perform normal analysisExample: Event-Driven Monitoring (position with attached bracket)
// After analysis, with BTC position open (has attached TP/SL bracket on Coinbase)
// Entry @ 95,000€, SL @ 91,200€ (on Coinbase), TP @ 98,800€ (on Coinbase)
// Monitor for trailing stop activation + rebalancing signals
response = wait_for_market_event({
subscriptions: [{
productId: "BTC-EUR",
conditions: [
{ field: "price", operator: "gte", value: 97850 } // Trailing stop activation (3% profit)
]
}],
timeout: 55
})
IF response.status == "triggered":
→ Activate trailing stop logic (attached bracket handles basic SL/TP)
ELSE:
→ Perform normal analysis cycle (check rebalancing, recalc SL/TP if >24h)Example: Event-Driven SL/TP Monitoring (position without bracket)
// Stop-limit fill or legacy position — no attached bracket, bot manages SL/TP
// Entry @ 95,000€, SL @ 91,200€, TP @ 98,800€
response = wait_for_market_event({
subscriptions: [{
productId: "BTC-EUR",
conditions: [
{ field: "price", operator: "lte", value: 91200 }, // SL
{ field: "price", operator: "gte", value: 98800 } // TP
],
logic: "any"
}],
timeout: 55
})
IF response.status == "triggered":
IF response.triggeredConditions[0].operator == "lte":
→ Execute STOP-LOSS (Market Order)
ELSE:
→ Execute TAKE-PROFIT (Limit Order)
ELSE:
→ Perform normal analysis cycleFallback to sleep (when no position or signal):
interval=5m → sleep 300interval=15m → sleep 900 (default)interval=30m → sleep 1800interval=1h → sleep 3600interval=60s → sleep 60Benefits of Event-Driven Monitoring:
| Aspect | Sleep-Polling (15min) | Event-Driven | |--------|----------------------|--------------| | SL/TP Detection | Up to 15 minutes late | Within seconds | | Token Usage | Higher (frequent analysis) | Lower (waits for events) | | API Calls | Every interval | Only on triggers | | Reaction Time | Interval-dependent | Near-instant |
The agent runs indefinitely until the user stops it with Ctrl+C.
Important during the loop:
wait_for_market_event for positions with active SL/TPsleep when no conditions to monitorTrack session.cycleCount in trading-state.json. Increment at start of each cycle.
When cycleCount % 5 === 0:
After every context compaction (you'll notice prior messages are summarized):
After re-reading, verify:
Other measured skills in the registry, with their headline benchmark lift.