feat: enhance token estimation and context limit handling in strategy configurations

kernel/engine_analysis.go

@@ -55,24 +55,27 @@ func GetFullDecisionWithStrategy(ctx *Context, mcpClient mcp.AIClient, engine *S
 	engineConfig := engine.GetConfig()
 	engineConfig.ClampLimits()
 
-	// Token estimation check — warn or block if exceeding all known model limits
+	// Token estimation check — block if exceeding the specific model's context limit
 	estimate := engineConfig.EstimateTokens()
-	allExceed := true
-	anyWarning := false
-	for _, ml := range estimate.ModelLimits {
-		if ml.UsagePct <= 100 {
-			allExceed = false
-		}
-		if ml.UsagePct >= 80 {
-			anyWarning = true
-		}
+
+	// Determine context limit for the specific model being used
+	contextLimit := 131072 // safe default (strictest common limit)
+	var providerName string
+	if embedder, ok := mcpClient.(mcp.ClientEmbedder); ok {
+		base := embedder.BaseClient()
+		providerName = base.Provider
+		contextLimit = store.GetContextLimitForClient(base.Provider, base.Model)
 	}
-	if allExceed && len(estimate.ModelLimits) > 0 {
-		logger.Errorf("🚫 Token estimate %d exceeds ALL known model context limits — blocking analysis", estimate.Total)
-		return nil, fmt.Errorf("estimated %d tokens exceeds all known model context limits; reduce coins, timeframes, or K-line count", estimate.Total)
+
+	if estimate.Total > contextLimit {
+		logger.Errorf("🚫 Token estimate %d exceeds %s context limit %d — blocking analysis",
+			estimate.Total, providerName, contextLimit)
+		return nil, fmt.Errorf("estimated %d tokens exceeds model context limit of %d; reduce coins, timeframes, or K-line count",
+			estimate.Total, contextLimit)
 	}
-	if anyWarning {
-		logger.Infof("⚠️  Token estimate %d — approaching context limits for some models", estimate.Total)
+	if estimate.Total*100/contextLimit >= 80 {
+		logger.Infof("⚠️  Token estimate %d — approaching %s context limit %d",
+			estimate.Total, providerName, contextLimit)
 	}
 
 	// 1. Fetch market data using strategy config