feat: add trace summary endpoint

.github/workflows/integrationci.yaml

@@ -67,6 +67,7 @@ jobs:
           - semconvfamilies
           - serviceaccount
           - spanmapper
+          - tracedetail
           - querier_json_body
           - querier_skip_resource_fingerprint
           - ttl

docs/api/openapi.yml

@@ -9439,6 +9439,29 @@ components:
       required:
       - aggregations
       type: object
+    SpantypesGettableTraceSummary:
+      properties:
+        ai:
+          $ref: '#/components/schemas/SpantypesTraceAISummary'
+        endTimestampMillis:
+          minimum: 0
+          type: integer
+        hasMissingSpans:
+          type: boolean
+        rootServiceEntryPoint:
+          type: string
+        rootServiceName:
+          type: string
+        startTimestampMillis:
+          minimum: 0
+          type: integer
+        totalErrorSpansCount:
+          minimum: 0
+          type: integer
+        totalSpansCount:
+          minimum: 0
+          type: integer
+      type: object
     SpantypesGettableWaterfallTrace:
       properties:
         endTimestampMillis:
@@ -9722,6 +9745,32 @@ components:
           nullable: true
           type: object
       type: object
+    SpantypesTraceAISummary:
+      properties:
+        tokens:
+          $ref: '#/components/schemas/SpantypesTraceAITokens'
+        totalCost:
+          nullable: true
+          type: number
+      type: object
+    SpantypesTraceAITokens:
+      properties:
+        cacheRead:
+          minimum: 0
+          type: integer
+        cacheWrite:
+          minimum: 0
+          type: integer
+        input:
+          minimum: 0
+          type: integer
+        output:
+          minimum: 0
+          type: integer
+        reasoning:
+          minimum: 0
+          type: integer
+      type: object
     SpantypesUpdatableSpanMapper:
       properties:
         config:
@@ -15460,6 +15509,66 @@ paths:
       summary: Get aggregations for a trace
       tags:
       - tracedetail
+  /api/v1/traces/{traceID}/summary:
+    get:
+      deprecated: false
+      description: Returns the trace-level fields of the waterfall (time range, root,
+        span counts, missing spans) and, when the trace has gen_ai spans, its token
+        and cost totals. Computed in one aggregate query.
+      operationId: GetTraceSummary
+      parameters:
+      - in: path
+        name: traceID
+        required: true
+        schema:
+          type: string
+      responses:
+        "200":
+          content:
+            application/json:
+              schema:
+                properties:
+                  data:
+                    $ref: '#/components/schemas/SpantypesGettableTraceSummary'
+                  status:
+                    type: string
+                required:
+                - status
+                - data
+                type: object
+          description: OK
+        "401":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Unauthorized
+        "403":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Forbidden
+        "404":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Not Found
+        "500":
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/RenderErrorResponse'
+          description: Internal Server Error
+      security:
+      - api_key:
+        - VIEWER
+      - tokenizer:
+        - VIEWER
+      summary: Get summary for a trace
+      tags:
+      - tracedetail
   /api/v1/user/me:
     get:
       deprecated: true

frontend/src/api/generated/services/sigNoz.schemas.ts

@@ -10884,6 +10884,78 @@ export interface SpantypesGettableTraceAggregationsDTO {
 	aggregations: SpantypesSpanAggregationResultDTO[];
 }
 
+export interface SpantypesTraceAITokensDTO {
+	/**
+	 * @type integer
+	 * @minimum 0
+	 */
+	cacheRead?: number;
+	/**
+	 * @type integer
+	 * @minimum 0
+	 */
+	cacheWrite?: number;
+	/**
+	 * @type integer
+	 * @minimum 0
+	 */
+	input?: number;
+	/**
+	 * @type integer
+	 * @minimum 0
+	 */
+	output?: number;
+	/**
+	 * @type integer
+	 * @minimum 0
+	 */
+	reasoning?: number;
+}
+
+export interface SpantypesTraceAISummaryDTO {
+	tokens?: SpantypesTraceAITokensDTO;
+	/**
+	 * @type number,null
+	 */
+	totalCost?: number | null;
+}
+
+export interface SpantypesGettableTraceSummaryDTO {
+	ai?: SpantypesTraceAISummaryDTO;
+	/**
+	 * @type integer
+	 * @minimum 0
+	 */
+	endTimestampMillis?: number;
+	/**
+	 * @type boolean
+	 */
+	hasMissingSpans?: boolean;
+	/**
+	 * @type string
+	 */
+	rootServiceEntryPoint?: string;
+	/**
+	 * @type string
+	 */
+	rootServiceName?: string;
+	/**
+	 * @type integer
+	 * @minimum 0
+	 */
+	startTimestampMillis?: number;
+	/**
+	 * @type integer
+	 * @minimum 0
+	 */
+	totalErrorSpansCount?: number;
+	/**
+	 * @type integer
+	 * @minimum 0
+	 */
+	totalSpansCount?: number;
+}
+
 export interface SpantypesOtelSpanRefDTO {
 	/**
 	 * @type string
@@ -12595,6 +12667,17 @@ export type GetTraceAggregations200 = {
 	status: string;
 };
 
+export type GetTraceSummaryPathParameters = {
+	traceID: string;
+};
+export type GetTraceSummary200 = {
+	data: SpantypesGettableTraceSummaryDTO;
+	/**
+	 * @type string
+	 */
+	status: string;
+};
+
 export type ListUserPreferences200 = {
 	/**
 	 * @type array

frontend/src/api/generated/services/tracedetail/index.ts

@@ -4,11 +4,17 @@
  * * regenerate with 'pnpm generate:api'
  * SigNoz
  */
-import { useMutation } from 'react-query';
+import { useMutation, useQuery } from 'react-query';
 import type {
+	InvalidateOptions,
 	MutationFunction,
+	QueryClient,
+	QueryFunction,
+	QueryKey,
 	UseMutationOptions,
 	UseMutationResult,
+	UseQueryOptions,
+	UseQueryResult,
 } from 'react-query';
 
 import type {
@@ -16,6 +22,8 @@ import type {
 	GetFlamegraphPathParameters,
 	GetTraceAggregations200,
 	GetTraceAggregationsPathParameters,
+	GetTraceSummary200,
+	GetTraceSummaryPathParameters,
 	GetWaterfallV4200,
 	GetWaterfallV4PathParameters,
 	RenderErrorResponseDTO,
@@ -27,6 +35,26 @@ import type {
 import { GeneratedAPIInstance } from '../../../generatedAPIInstance';
 import type { ErrorType, BodyType } from '../../../generatedAPIInstance';
 
+const withQueryKey = <T extends object, K>(
+	query: T,
+	queryKey: K,
+): T & { queryKey: K } => {
+	const result = { queryKey } as T & { queryKey: K };
+	for (const key of Object.keys(query)) {
+		// The explicit queryKey always wins, matching the previous
+		// `{ ...query, queryKey }` spread where it was set last.
+		if (key === 'queryKey') {
+			continue;
+		}
+		Object.defineProperty(result, key, {
+			enumerable: true,
+			configurable: true,
+			get: () => (query as Record<string, unknown>)[key],
+		});
+	}
+	return result;
+};
+
 /**
  * Computes span aggregations grouped by requested field.
  * @summary Get aggregations for a trace
@@ -127,6 +155,108 @@ export const useGetTraceAggregations = <
 > => {
 	return useMutation(getGetTraceAggregationsMutationOptions(options));
 };
+/**
+ * Returns the trace-level fields of the waterfall (time range, root, span counts, missing spans) and, when the trace has gen_ai spans, its token and cost totals. Computed in one aggregate query.
+ * @summary Get summary for a trace
+ */
+export const getTraceSummary = (
+	{ traceID }: GetTraceSummaryPathParameters,
+	signal?: AbortSignal,
+) => {
+	return GeneratedAPIInstance<GetTraceSummary200>({
+		url: `/api/v1/traces/${traceID}/summary`,
+		method: 'GET',
+		signal,
+	});
+};
+
+export const getGetTraceSummaryQueryKey = ({
+	traceID,
+}: GetTraceSummaryPathParameters) => {
+	return [`/api/v1/traces/${traceID}/summary`] as const;
+};
+
+export const getGetTraceSummaryQueryOptions = <
+	TData = Awaited<ReturnType<typeof getTraceSummary>>,
+	TError = ErrorType<RenderErrorResponseDTO>,
+>(
+	{ traceID }: GetTraceSummaryPathParameters,
+	options?: {
+		query?: UseQueryOptions<
+			Awaited<ReturnType<typeof getTraceSummary>>,
+			TError,
+			TData
+		>;
+	},
+) => {
+	const { query: queryOptions } = options ?? {};
+
+	const queryKey =
+		queryOptions?.queryKey ?? getGetTraceSummaryQueryKey({ traceID });
+
+	const queryFn: QueryFunction<Awaited<ReturnType<typeof getTraceSummary>>> = ({
+		signal,
+	}) => getTraceSummary({ traceID }, signal);
+
+	return {
+		queryKey,
+		queryFn,
+		enabled: traceID !== null && traceID !== undefined,
+		...queryOptions,
+	} as UseQueryOptions<
+		Awaited<ReturnType<typeof getTraceSummary>>,
+		TError,
+		TData
+	> & { queryKey: QueryKey };
+};
+
+export type GetTraceSummaryQueryResult = NonNullable<
+	Awaited<ReturnType<typeof getTraceSummary>>
+>;
+export type GetTraceSummaryQueryError = ErrorType<RenderErrorResponseDTO>;
+
+/**
+ * @summary Get summary for a trace
+ */
+
+export function useGetTraceSummary<
+	TData = Awaited<ReturnType<typeof getTraceSummary>>,
+	TError = ErrorType<RenderErrorResponseDTO>,
+>(
+	{ traceID }: GetTraceSummaryPathParameters,
+	options?: {
+		query?: UseQueryOptions<
+			Awaited<ReturnType<typeof getTraceSummary>>,
+			TError,
+			TData
+		>;
+	},
+): UseQueryResult<TData, TError> & { queryKey: QueryKey } {
+	const queryOptions = getGetTraceSummaryQueryOptions({ traceID }, options);
+
+	const query = useQuery(queryOptions) as UseQueryResult<TData, TError> & {
+		queryKey: QueryKey;
+	};
+
+	return withQueryKey(query, queryOptions.queryKey);
+}
+
+/**
+ * @summary Get summary for a trace
+ */
+export const invalidateGetTraceSummary = async (
+	queryClient: QueryClient,
+	{ traceID }: GetTraceSummaryPathParameters,
+	options?: InvalidateOptions,
+): Promise<QueryClient> => {
+	await queryClient.invalidateQueries(
+		{ queryKey: getGetTraceSummaryQueryKey({ traceID }) },
+		options,
+	);
+
+	return queryClient;
+};
+
 /**
  * Returns the flamegraph view of spans for a given trace ID.
  * @summary Get flamegraph view for a trace

frontend/src/lib/uPlotV2/components/Tooltip/components/TooltipItem/TooltipItem.module.scss

@@ -25,7 +25,6 @@
 
 .uplotTooltipItemContent {
 	width: 100%;
-	min-width: 0;
 	display: flex;
 	align-items: center;
 	gap: var(--spacing-2);
@@ -41,24 +40,16 @@
 }
 
 .uplotTooltipItemLabel {
-	min-width: 0;
-	// Not `anywhere`, which drops min-content to one character and lets a wide
-	// value squeeze the label into a mid-word break.
 	white-space: normal;
-	overflow-wrap: break-word;
-	display: -webkit-box;
-	-webkit-line-clamp: 3;
-	-webkit-box-orient: vertical;
-	overflow: hidden;
+	overflow-wrap: anywhere;
 }
 
 .uplotTooltipItemValue {
 	white-space: nowrap;
-	flex: 0 0 auto;
 }
 
 .uplotTooltipItemContentSeparator {
-	flex: 1 1 24px;
+	flex: 1;
 	border-width: 0.5px;
 	border-style: dashed;
 	min-width: 24px;

frontend/src/lib/uPlotV2/components/Tooltip/components/TooltipItem/TooltipItem.tsx

@@ -34,9 +34,7 @@ export default function TooltipItem({
 				style={{ color: item.color }}
 				data-testid={contentTestId}
 			>
-				<span className={Styles.uplotTooltipItemLabel} title={item.label}>
-					{item.label}
-				</span>
+				<span className={Styles.uplotTooltipItemLabel}>{item.label}</span>
 				<span
 					className={Styles.uplotTooltipItemContentSeparator}
 					style={{ borderColor: item.color }}

frontend/src/lib/visualization/charts/ChartWrapper/ChartWrapper.tsx

@@ -17,8 +17,7 @@ import { ChartWrapperProps } from 'lib/visualization/charts/types';
 import { useChartStacking } from 'lib/visualization/charts/ChartWrapper/useChartStacking';
 
 const TOOLTIP_WIDTH_PADDING = 120;
-// Holds a tooltip row's value column next to a legend-length label.
-const TOOLTIP_MIN_WIDTH = 360;
+const TOOLTIP_MIN_WIDTH = 300;
 
 export default function ChartWrapper({
 	legendConfig = { position: LegendPosition.BOTTOM },

pkg/apiserver/signozapiserver/tracedetail.go

@@ -10,6 +10,23 @@ import (
 )
 
 func (provider *provider) addTraceDetailRoutes(router *mux.Router) error {
+	if err := router.Handle("/api/v1/traces/{traceID}/summary", handler.New(
+		provider.authzMiddleware.ViewAccess(provider.traceDetailHandler.GetTraceSummary),
+		handler.OpenAPIDef{
+			ID:                  "GetTraceSummary",
+			Tags:                []string{"tracedetail"},
+			Summary:             "Get summary for a trace",
+			Description:         "Returns the trace-level fields of the waterfall (time range, root, span counts, missing spans) and, when the trace has gen_ai spans, its token and cost totals. Computed in one aggregate query.",
+			Response:            new(spantypes.GettableTraceSummary),
+			ResponseContentType: "application/json",
+			SuccessStatusCode:   http.StatusOK,
+			ErrorStatusCodes:    []int{http.StatusNotFound},
+			SecuritySchemes:     newSecuritySchemes(types.RoleViewer),
+		},
+	)).Methods(http.MethodGet).GetError(); err != nil {
+		return err
+	}
+
 	if err := router.Handle("/api/v4/traces/{traceID}/waterfall", handler.New(
 		provider.authzMiddleware.ViewAccess(provider.traceDetailHandler.GetWaterfallV4),
 		handler.OpenAPIDef{

pkg/modules/tracedetail/impltracedetail/handler.go

@@ -6,7 +6,9 @@ import (
 	"github.com/SigNoz/signoz/pkg/http/binding"
 	"github.com/SigNoz/signoz/pkg/http/render"
 	"github.com/SigNoz/signoz/pkg/modules/tracedetail"
+	"github.com/SigNoz/signoz/pkg/types/authtypes"
 	"github.com/SigNoz/signoz/pkg/types/spantypes"
+	"github.com/SigNoz/signoz/pkg/valuer"
 	"github.com/gorilla/mux"
 )
 
@@ -18,6 +20,27 @@ func NewHandler(module tracedetail.Module) tracedetail.Handler {
 	return &handler{module: module}
 }
 
+func (h *handler) GetTraceSummary(rw http.ResponseWriter, r *http.Request) {
+	claims, err := authtypes.ClaimsFromContext(r.Context())
+	if err != nil {
+		render.Error(rw, err)
+		return
+	}
+	orgID, err := valuer.NewUUID(claims.OrgID)
+	if err != nil {
+		render.Error(rw, err)
+		return
+	}
+
+	stats, err := h.module.GetTraceStats(r.Context(), orgID, mux.Vars(r)["traceID"])
+	if err != nil {
+		render.Error(rw, err)
+		return
+	}
+
+	render.Success(rw, http.StatusOK, spantypes.NewGettableTraceSummary(stats))
+}
+
 func (h *handler) GetWaterfallV4(rw http.ResponseWriter, r *http.Request) {
 	req := new(spantypes.PostableWaterfall)
 	if err := binding.JSON.BindBody(r.Body, req); err != nil {

pkg/modules/tracedetail/impltracedetail/module.go

@@ -8,6 +8,7 @@ import (
 	"github.com/SigNoz/signoz/pkg/modules/tracedetail"
 	"github.com/SigNoz/signoz/pkg/types/spantypes"
 	"github.com/SigNoz/signoz/pkg/types/telemetrytypes"
+	"github.com/SigNoz/signoz/pkg/valuer"
 	"go.opentelemetry.io/otel/metric"
 )
 
@@ -39,6 +40,21 @@ func NewModule(traceStore spantypes.TraceStore, providerSettings factory.Provide
 	return m
 }
 
+func (m *module) GetTraceStats(ctx context.Context, orgID valuer.UUID, traceID string) (*spantypes.TraceStats, error) {
+	summary, err := m.store.GetTraceSummary(ctx, traceID)
+	if err != nil {
+		return nil, err
+	}
+	stats, err := m.store.GetTraceStats(ctx, orgID, traceID, summary)
+	if err != nil {
+		return nil, err
+	}
+	if stats.TotalSpans == 0 {
+		return nil, spantypes.ErrTraceNotFound
+	}
+	return stats, nil
+}
+
 // GetWaterfallV4 is the OOM-safe V4 waterfall.
 // For large traces (NumSpans > effectiveLimit) it uses a two-step fetch:
 // minimal fields for all spans to build the tree, then full fields for the

pkg/modules/tracedetail/impltracedetail/store.go

@@ -10,9 +10,15 @@ import (
 
 	"github.com/SigNoz/signoz/pkg/clickhousesql"
 	"github.com/SigNoz/signoz/pkg/errors"
+	"github.com/SigNoz/signoz/pkg/flagger"
+	"github.com/SigNoz/signoz/pkg/querybuilder"
+	"github.com/SigNoz/signoz/pkg/telemetryschema/tracestelemetryschema"
 	"github.com/SigNoz/signoz/pkg/telemetrystore"
+	"github.com/SigNoz/signoz/pkg/types/aiobservabilitytypes"
+	qbtypes "github.com/SigNoz/signoz/pkg/types/querybuildertypes/querybuildertypesv5"
 	"github.com/SigNoz/signoz/pkg/types/spantypes"
 	"github.com/SigNoz/signoz/pkg/types/telemetrytypes"
+	"github.com/SigNoz/signoz/pkg/valuer"
 )
 
 const colServiceName = `resource_string_service$$$$name` // $ gets escaped so $$$$ converts to $$.
@@ -38,10 +44,18 @@ type spanDurationRow struct {
 
 type traceStore struct {
 	telemetryStore telemetrystore.TelemetryStore
+	metadataStore  telemetrytypes.MetadataStore
+	storage        qbtypes.Storage
+	flagger        flagger.Flagger
 }
 
-func NewTraceStore(ts telemetrystore.TelemetryStore) *traceStore {
-	return &traceStore{telemetryStore: ts}
+func NewTraceStore(ts telemetrystore.TelemetryStore, metadataStore telemetrytypes.MetadataStore, fl flagger.Flagger) *traceStore {
+	return &traceStore{
+		telemetryStore: ts,
+		metadataStore:  metadataStore,
+		storage:        tracestelemetryschema.NewStorage(),
+		flagger:        fl,
+	}
 }
 
 func (s *traceStore) GetTraceSummary(ctx context.Context, traceID string) (*spantypes.TraceSummary, error) {
@@ -65,6 +79,131 @@ func (s *traceStore) GetTraceSummary(ctx context.Context, traceID string) (*span
 	return &summary, nil
 }
 
+func (s *traceStore) GetTraceStats(ctx context.Context, orgID valuer.UUID, traceID string, summary *spantypes.TraceSummary) (*spantypes.TraceStats, error) {
+	table := fmt.Sprintf("%s.%s", spantypes.TraceDB, spantypes.TraceTable)
+	spans := sqlbuilder.NewSelectBuilder()
+
+	genAIColumns, err := s.genAISpanColumns(ctx, orgID, summary, spans)
+	if err != nil {
+		return nil, err
+	}
+
+	// A span whose parent was never recorded hangs off a synthetic "Missing Span" root in the waterfall.
+	ids := sqlbuilder.NewSelectBuilder()
+	ids.Select("span_id")
+	ids.From(table)
+	ids.Where(
+		ids.E("trace_id", traceID),
+		ids.GE("ts_bucket_start", summary.Start.Unix()-1800),
+		ids.LE("ts_bucket_start", summary.End.Unix()),
+	)
+	missingParent := fmt.Sprintf("parent_span_id <> '' AND parent_span_id GLOBAL NOT IN (%s)", spans.Var(ids))
+
+	spans.Select(
+		"toUnixTimestamp64Nano(timestamp) AS span_start_ns",
+		"span_start_ns + duration_nano AS span_end_ns",
+		"span_id",
+		"has_error",
+		"("+missingParent+") AS has_missing_parent",
+		"(parent_span_id = '' OR has_missing_parent) AS is_root",
+		"if(parent_span_id = '', name, 'Missing Span') AS root_name",
+		"if(parent_span_id = '', "+colServiceName+", '') AS root_service",
+	)
+	spans.SelectMore(genAIColumns...)
+	spans.From(table)
+	spans.Where(
+		spans.E("trace_id", traceID),
+		spans.GE("ts_bucket_start", summary.Start.Unix()-1800),
+		spans.LE("ts_bucket_start", summary.End.Unix()),
+	)
+	spans.SQL("LIMIT 1 BY span_id")
+
+	sb := sqlbuilder.NewSelectBuilder()
+	sb.Select(
+		"toUInt64(min(span_start_ns)) AS start_ns",
+		"toUInt64(max(span_end_ns)) AS end_ns",
+		"count() AS total_spans",
+		"countIf(has_error) AS total_error_spans",
+		"countIf(has_missing_parent) > 0 AS has_missing_spans",
+		"argMinIf(root_service, (span_start_ns, root_name), is_root) AS root_service_name",
+		"argMinIf(root_name, (span_start_ns, root_name), is_root) AS root_entry_point",
+		"countIf(is_gen_ai) AS gen_ai_span_count",
+		"toUInt64(coalesce(sum(input_tokens_value), 0)) AS input_tokens",
+		"toUInt64(coalesce(sum(output_tokens_value), 0)) AS output_tokens",
+		"toUInt64(coalesce(sum(cache_read_tokens_value), 0)) AS cache_read_tokens",
+		"toUInt64(coalesce(sum(cache_write_tokens_value), 0)) AS cache_write_tokens",
+		"toUInt64(coalesce(sum(reasoning_tokens_value), 0)) AS reasoning_tokens",
+		"sum(total_cost_value) AS total_cost",
+	)
+	sb.From(sb.BuilderAs(spans, "spans"))
+	query, args := sb.BuildWithFlavor(sqlbuilder.ClickHouse)
+
+	var stats spantypes.TraceStats
+	err = s.telemetryStore.ClickhouseDB().QueryRow(ctx, query, args...).Scan(
+		&stats.StartNs, &stats.EndNs, &stats.TotalSpans, &stats.TotalErrorSpans, &stats.HasMissingSpans,
+		&stats.RootServiceName, &stats.RootEntryPoint, &stats.GenAISpanCount,
+		&stats.Tokens.Input, &stats.Tokens.Output, &stats.Tokens.CacheRead, &stats.Tokens.CacheWrite, &stats.Tokens.Reasoning,
+		&stats.TotalCost,
+	)
+	if err != nil {
+		return nil, errors.WrapInternalf(err, errors.CodeInternal, "error querying trace stats")
+	}
+	return &stats, nil
+}
+
+// genAISpanColumns renders the per-span gen_ai gate and value reads through the shared
+// traces storage, so each attribute is read from the column its evolutions place it in
+// over the trace's own time window. Exists predicates bind their args into sb.
+func (s *traceStore) genAISpanColumns(ctx context.Context, orgID valuer.UUID, summary *spantypes.TraceSummary, sb *sqlbuilder.SelectBuilder) ([]string, error) {
+	// no data type: metadata reports token counts as number, so a float64 request would
+	// miss them and fall back to a map read without evolutions
+	attributeKey := func(name string) *telemetrytypes.TelemetryFieldKey {
+		return &telemetrytypes.TelemetryFieldKey{Name: name, Signal: telemetrytypes.SignalTraces, FieldContext: telemetrytypes.FieldContextAttribute}
+	}
+
+	selectors := make([]*telemetrytypes.FieldKeySelector, 0, len(aiobservabilitytypes.GenAISpanGateKeys)+len(spantypes.TraceStatsGenAIColumns))
+	addSelector := func(name string) {
+		selectors = append(selectors, &telemetrytypes.FieldKeySelector{
+			Name:              name,
+			Signal:            telemetrytypes.SignalTraces,
+			FieldContext:      telemetrytypes.FieldContextAttribute,
+			SelectorMatchType: telemetrytypes.FieldSelectorMatchTypeExact,
+		})
+	}
+	for _, name := range aiobservabilitytypes.GenAISpanGateKeys {
+		addSelector(name)
+	}
+	for _, col := range spantypes.TraceStatsGenAIColumns {
+		addSelector(col.Key)
+	}
+	keys, _, err := s.metadataStore.GetKeysMulti(ctx, orgID, querybuilder.ExpandKeySelectorsForFamilies(ctx, orgID, s.flagger, selectors))
+	if err != nil {
+		return nil, err
+	}
+
+	q := querybuilder.NewQueryInfo(ctx, orgID, s.flagger, telemetrytypes.SignalTraces, nil, uint64(summary.Start.UnixNano()), uint64(summary.End.UnixNano()))
+
+	gate := make([]string, 0, len(aiobservabilitytypes.GenAISpanGateKeys))
+	for _, name := range aiobservabilitytypes.GenAISpanGateKeys {
+		conds, _, err := querybuilder.Conditions(ctx, q, s.storage, attributeKey(name), qbtypes.FilterOperatorExists, nil, keys, false, sb)
+		if err != nil {
+			return nil, err
+		}
+		gate = append(gate, conds...)
+	}
+	columns := []string{sb.Or(gate...) + " AS is_gen_ai"}
+
+	for _, col := range spantypes.TraceStatsGenAIColumns {
+		expr, err := querybuilder.ResolveColumn(ctx, q, s.storage, attributeKey(col.Key), telemetrytypes.FieldDataTypeFloat64, keys)
+		if err != nil {
+			return nil, err
+		}
+		// a materialized column name carries `$$`, which Build would otherwise unescape
+		columns = append(columns, sqlbuilder.Escape(expr)+" AS "+col.Column+"_value")
+	}
+	return columns, nil
+}
+
 func (s *traceStore) GetTraceSpans(ctx context.Context, traceID string, summary *spantypes.TraceSummary) ([]spantypes.StorableSpan, error) {
 	// DISTINCT ON (span_id) is ClickHouse-specific syntax not supported by sqlbuilder
 	query := fmt.Sprintf(`

pkg/modules/tracedetail/tracedetail.go

@@ -6,10 +6,12 @@ import (
 
 	"github.com/SigNoz/signoz/pkg/types/spantypes"
 	"github.com/SigNoz/signoz/pkg/types/telemetrytypes"
+	"github.com/SigNoz/signoz/pkg/valuer"
 )
 
 // Handler exposes HTTP handlers for trace detail APIs.
 type Handler interface {
+	GetTraceSummary(http.ResponseWriter, *http.Request)
 	GetWaterfallV4(http.ResponseWriter, *http.Request)
 	GetTraceAggregations(http.ResponseWriter, *http.Request)
 	GetFlamegraph(http.ResponseWriter, *http.Request)
@@ -17,6 +19,7 @@ type Handler interface {
 
 // Module defines the business logic for trace detail operations.
 type Module interface {
+	GetTraceStats(ctx context.Context, orgID valuer.UUID, traceID string) (*spantypes.TraceStats, error)
 	GetWaterfallV4(ctx context.Context, traceID string, selectedSpanID string, uncollapsedSpans []string) (*spantypes.GettableWaterfallTrace, error)
 	GetTraceAggregations(ctx context.Context, traceID string, req *spantypes.PostableTraceAggregations) (*spantypes.GettableTraceAggregations, error)
 	GetFlamegraph(ctx context.Context, traceID string, selectedSpanID string, selectFields []telemetrytypes.TelemetryFieldKey) (*spantypes.GettableFlamegraphTrace, error)

pkg/querybuilder/key_resolution.go

@@ -25,9 +25,8 @@ const (
 // ResolveLogicalFields picks which logical fields a filter term builds conditions
 // for. With 0 or 1 field it returns the input unchanged and no warning. When a
 // name is ambiguous (several logical fields — a family is one field and never
-// ambiguous with itself) it returns a warning; a resource + other-context mix
-// (attribute, body, scope, …) defaults to the resource fields (the common
-// intent), noted in the warning.
+// ambiguous with itself) it returns a warning; a resource+attribute mix defaults
+// to the resource fields (the common intent), noted in the warning.
 func ResolveLogicalFields(field *telemetrytypes.TelemetryFieldKey, logicalFields []*telemetrytypes.LogicalField) ([]*telemetrytypes.LogicalField, string) {
 	if len(logicalFields) <= 1 {
 		return logicalFields, ""
@@ -40,17 +39,18 @@ func ResolveLogicalFields(field *telemetrytypes.TelemetryFieldKey, logicalFields
 		logicalFields,
 	)
 
-	hasResource, hasOther := false, false
+	hasResource, hasAttribute := false, false
 	for _, item := range logicalFields {
-		if item.FieldContext == telemetrytypes.FieldContextResource {
+		switch item.FieldContext {
+		case telemetrytypes.FieldContextResource:
 			hasResource = true
-		} else {
-			hasOther = true
+		case telemetrytypes.FieldContextAttribute:
+			hasAttribute = true
 		}
 	}
 
-	// with resource and any other context, default to resource only
-	if hasResource && hasOther {
+	// when there is both resource and attribute context, default to resource only
+	if hasResource && hasAttribute {
 		filtered := make([]*telemetrytypes.LogicalField, 0, len(logicalFields))
 		for _, item := range logicalFields {
 			if item.FieldContext == telemetrytypes.FieldContextResource {
@@ -58,8 +58,8 @@ func ResolveLogicalFields(field *telemetrytypes.TelemetryFieldKey, logicalFields
 			}
 		}
 		logicalFields = filtered
-		warning += " " + "Using `resource` context by default. To query another context explicitly, " +
-			fmt.Sprintf("use the fully qualified name (e.g., 'attribute.%s' or 'body.%s')", field.Name, field.Name)
+		warning += " " + "Using `resource` context by default. To query attributes explicitly, " +
+			fmt.Sprintf("use the fully qualified name (e.g., 'attribute.%s')", field.Name)
 	}
 
 	return logicalFields, warning

pkg/querybuilder/logical_fields_test.go

@@ -175,42 +175,6 @@ func TestResolveLogicalFieldsKeepsFamilyThroughAmbiguity(t *testing.T) {
 	assert.Equal(t, []string{"deployment.environment.name", "deployment.environment"}, memberNames(resolved[0]))
 }
 
-// Resource wins over every other context, not just attribute: a bare key that
-// also lives in body or scope must collapse to resource alone, so the surviving
-// candidate does not AND against the resource fingerprint CTE.
-func TestResolveLogicalFieldsResourceWinsOverOtherContexts(t *testing.T) {
-	testCases := []struct {
-		name  string
-		other telemetrytypes.FieldContext
-	}{
-		{name: "ResourceOverBody", other: telemetrytypes.FieldContextBody},
-		{name: "ResourceOverScope", other: telemetrytypes.FieldContextScope},
-	}
-
-	for _, testCase := range testCases {
-		t.Run(testCase.name, func(t *testing.T) {
-			requested := &telemetrytypes.TelemetryFieldKey{Name: "service.name"}
-			fields := []*telemetrytypes.LogicalField{
-				telemetrytypes.SingleLogicalField("service.name", &telemetrytypes.TelemetryFieldKey{
-					Name:          "service.name",
-					FieldContext:  telemetrytypes.FieldContextResource,
-					FieldDataType: telemetrytypes.FieldDataTypeString,
-				}),
-				telemetrytypes.SingleLogicalField("service.name", &telemetrytypes.TelemetryFieldKey{
-					Name:          "service.name",
-					FieldContext:  testCase.other,
-					FieldDataType: telemetrytypes.FieldDataTypeString,
-				}),
-			}
-
-			resolved, warning := ResolveLogicalFields(requested, fields)
-			assert.NotEmpty(t, warning)
-			require.Len(t, resolved, 1)
-			assert.Equal(t, telemetrytypes.FieldContextResource, resolved[0].FieldContext)
-		})
-	}
-}
-
 // Members of a family with different data types never merge: the identity
 // (signal, context, data type) separates them into distinct logical fields.
 func TestMatchingLogicalFieldsNeverMergesAcrossDataTypes(t *testing.T) {

pkg/signoz/module.go

@@ -161,7 +161,7 @@ func NewModules(
 		LogsPipeline:         impllogspipeline.NewModule(sqlstore),
 		RuleStateHistory:     implrulestatehistory.NewModule(implrulestatehistory.NewStore(telemetryStore, telemetryMetadataStore, providerSettings.Logger), ruleStore),
 		CloudIntegration:     cloudIntegrationModule,
-		TraceDetail:          impltracedetail.NewModule(impltracedetail.NewTraceStore(telemetryStore), providerSettings, config.TraceDetail),
+		TraceDetail:          impltracedetail.NewModule(impltracedetail.NewTraceStore(telemetryStore, telemetryMetadataStore, fl), providerSettings, config.TraceDetail),
 		SpanMapper:           implspanmapper.NewModule(implspanmapper.NewStore(sqlstore), fl),
 		LLMPricingRule:       impllmpricingrule.NewModule(impllmpricingrule.NewStore(sqlstore), fl, querier),
 		Tag:                  tagModule,

pkg/statementbuilder/logsstatementbuilder/resource_conflict_test.go

@@ -1,90 +0,0 @@
-package logsstatementbuilder
-
-import (
-	"context"
-	"testing"
-
-	"github.com/SigNoz/signoz/pkg/flagger/flaggertest"
-	"github.com/SigNoz/signoz/pkg/instrumentation/instrumentationtest"
-	"github.com/SigNoz/signoz/pkg/querybuilder"
-	"github.com/SigNoz/signoz/pkg/statementbuilder"
-	"github.com/SigNoz/signoz/pkg/telemetryschema/logstelemetryschema"
-	qbtypes "github.com/SigNoz/signoz/pkg/types/querybuildertypes/querybuildertypesv5"
-	"github.com/SigNoz/signoz/pkg/types/telemetrytypes"
-	"github.com/SigNoz/signoz/pkg/types/telemetrytypes/telemetrytypestest"
-	"github.com/SigNoz/signoz/pkg/valuer"
-	"github.com/stretchr/testify/require"
-)
-
-// A key present in both resource and body contexts must filter on resource only.
-// The resource condition builds the fingerprint CTE, so a surviving body condition
-// would AND against it and match almost nothing (engineering-pod#6086).
-func TestStatementBuilderResourceBodyConflict(t *testing.T) {
-	store := telemetrytypestest.NewMockMetadataStore()
-	store.SetStaticFields(logstelemetryschema.IntrinsicFields)
-	store.SetKey(&telemetrytypes.TelemetryFieldKey{
-		Name:          "service.name",
-		Signal:        telemetrytypes.SignalLogs,
-		FieldContext:  telemetrytypes.FieldContextResource,
-		FieldDataType: telemetrytypes.FieldDataTypeString,
-	})
-	bodyKey := &telemetrytypes.TelemetryFieldKey{
-		Name:          "service.name",
-		Signal:        telemetrytypes.SignalLogs,
-		FieldContext:  telemetrytypes.FieldContextBody,
-		FieldDataType: telemetrytypes.FieldDataTypeString,
-	}
-	require.NoError(t, bodyKey.SetJSONAccessPlan(telemetrytypes.JSONColumnMetadata{
-		BaseColumn:     logstelemetryschema.LogsV2BodyV2Column,
-		PromotedColumn: logstelemetryschema.LogsV2BodyPromotedColumn,
-	}, map[string][]telemetrytypes.FieldDataType{"service.name": {telemetrytypes.FieldDataTypeString}}))
-	store.SetKey(bodyKey)
-
-	fl := flaggertest.WithUseJSONBody(t, true)
-	storage := logstelemetryschema.NewStorage()
-	aggExprRewriter := querybuilder.NewAggExprRewriter(instrumentationtest.New().ToProviderSettings(), nil, storage, fl, telemetrytypes.SignalLogs)
-	statementBuilder := NewLogQueryStatementBuilder(
-		instrumentationtest.New().ToProviderSettings(),
-		store,
-		storage,
-		aggExprRewriter,
-		logstelemetryschema.DefaultFullTextColumn,
-		fl,
-		nil,
-		statementbuilder.Config{SkipResourceFingerprint: statementbuilder.SkipResourceFingerprint{Enabled: false, Threshold: 100000}},
-	)
-
-	testCases := []struct {
-		name        string
-		requestType qbtypes.RequestType
-		query       qbtypes.QueryBuilderQuery[qbtypes.LogAggregation]
-		expected    qbtypes.Statement
-	}{
-		{
-			name:        "AmbiguousKeyFiltersResourceOnly",
-			requestType: qbtypes.RequestTypeRaw,
-			query: qbtypes.QueryBuilderQuery[qbtypes.LogAggregation]{
-				Signal: telemetrytypes.SignalLogs,
-				Filter: &qbtypes.Filter{Expression: "service.name = 'webapp'"},
-				Limit:  10,
-			},
-			expected: qbtypes.Statement{
-				Query: "WITH __resource_filter AS (SELECT fingerprint FROM signoz_logs.distributed_logs_v2_resource WHERE (simpleJSONExtractString(labels, 'service.name') = ? AND labels LIKE ? AND labels LIKE ?) AND seen_at_ts_bucket_start >= ? AND seen_at_ts_bucket_start <= ? GROUP BY fingerprint) SELECT timestamp, id, trace_id, span_id, trace_flags, severity_text, severity_number, scope_name, scope_version, body_v2 as body, attributes_string, attributes_number, attributes_bool, resources_string, scope_string FROM signoz_logs.distributed_logs_v2 WHERE resource_fingerprint GLOBAL IN (SELECT fingerprint FROM __resource_filter) AND timestamp >= ? AND ts_bucket_start >= ? AND timestamp < ? AND ts_bucket_start <= ? LIMIT ?",
-				Args:  []any{"webapp", "%service.name%", "%service.name\":\"webapp%", uint64(1747945619), uint64(1747983448), "1747947419000000000", uint64(1747945619), "1747983448000000000", uint64(1747983448), 10},
-				Warnings: []string{
-					"Key `service.name` is ambiguous, found 2 different combinations of field context / data type: [name=service.name,context=resource,datatype=string name=service.name,context=body,datatype=string]. Using `resource` context by default. To query another context explicitly, use the fully qualified name (e.g., 'attribute.service.name' or 'body.service.name')",
-				},
-			},
-		},
-	}
-
-	for _, testCase := range testCases {
-		t.Run(testCase.name, func(t *testing.T) {
-			q, err := statementBuilder.Build(context.Background(), valuer.UUID{}, 1747947419000, 1747983448000, testCase.requestType, testCase.query, nil)
-			require.NoError(t, err)
-			require.Equal(t, testCase.expected.Query, q.Query)
-			require.Equal(t, testCase.expected.Args, q.Args)
-			require.Equal(t, testCase.expected.Warnings, q.Warnings)
-		})
-	}
-}

pkg/telemetryschema/aitelemetryschema/const.go

@@ -19,6 +19,7 @@ var (
 		aiobservabilitytypes.GenAIUsageOutputTokens:             genAIAttribute(aiobservabilitytypes.GenAIUsageOutputTokens, telemetrytypes.FieldDataTypeFloat64),
 		aiobservabilitytypes.GenAIUsageCacheReadInputTokens:     genAIAttribute(aiobservabilitytypes.GenAIUsageCacheReadInputTokens, telemetrytypes.FieldDataTypeFloat64),
 		aiobservabilitytypes.GenAIUsageCacheCreationInputTokens: genAIAttribute(aiobservabilitytypes.GenAIUsageCacheCreationInputTokens, telemetrytypes.FieldDataTypeFloat64),
+		aiobservabilitytypes.GenAIUsageReasoningOutputTokens:    genAIAttribute(aiobservabilitytypes.GenAIUsageReasoningOutputTokens, telemetrytypes.FieldDataTypeFloat64),
 		aiobservabilitytypes.SignozGenAITotalCost:               genAIAttribute(aiobservabilitytypes.SignozGenAITotalCost, telemetrytypes.FieldDataTypeFloat64),
 
 		aiobservabilitytypes.GenAIInputMessages:  genAIAttribute(aiobservabilitytypes.GenAIInputMessages, telemetrytypes.FieldDataTypeString),

pkg/types/aiobservabilitytypes/keys.go

@@ -15,6 +15,7 @@ const (
 	GenAIUsageOutputTokens             = "gen_ai.usage.output_tokens"
 	GenAIUsageCacheReadInputTokens     = "gen_ai.usage.cache_read.input_tokens"
 	GenAIUsageCacheCreationInputTokens = "gen_ai.usage.cache_creation.input_tokens"
+	GenAIUsageReasoningOutputTokens    = "gen_ai.usage.reasoning.output_tokens"
 
 	GenAIInputMessages  = "gen_ai.input.messages"
 	GenAIOutputMessages = "gen_ai.output.messages"

pkg/types/spantypes/store.go

@@ -27,6 +27,7 @@ type SpanMapperStore interface {
 // TraceStore defines the data access interface for trace detail queries.
 type TraceStore interface {
 	GetTraceSummary(ctx context.Context, traceID string) (*TraceSummary, error)
+	GetTraceStats(ctx context.Context, orgID valuer.UUID, traceID string, summary *TraceSummary) (*TraceStats, error)
 	GetTraceSpans(ctx context.Context, traceID string, summary *TraceSummary) ([]StorableSpan, error)
 	GetMinimalSpans(ctx context.Context, traceID string, start, end time.Time) ([]MinimalSpan, error)
 	GetTraceSpansByIDs(ctx context.Context, traceID string, start, end time.Time, spanIDs []string) ([]StorableSpan, error)

pkg/types/spantypes/trace_summary.go

@@ -0,0 +1,76 @@
+package spantypes
+
+import "github.com/SigNoz/signoz/pkg/types/aiobservabilitytypes"
+
+// TraceStatsGenAIColumns pairs each summed TraceStats column with the gen_ai attribute it sums.
+var TraceStatsGenAIColumns = []TraceStatsGenAIColumn{
+	{Column: "input_tokens", Key: aiobservabilitytypes.GenAIUsageInputTokens},
+	{Column: "output_tokens", Key: aiobservabilitytypes.GenAIUsageOutputTokens},
+	{Column: "cache_read_tokens", Key: aiobservabilitytypes.GenAIUsageCacheReadInputTokens},
+	{Column: "cache_write_tokens", Key: aiobservabilitytypes.GenAIUsageCacheCreationInputTokens},
+	{Column: "reasoning_tokens", Key: aiobservabilitytypes.GenAIUsageReasoningOutputTokens},
+	{Column: "total_cost", Key: aiobservabilitytypes.SignozGenAITotalCost},
+}
+
+type TraceStatsGenAIColumn struct {
+	Column string
+	Key    string
+}
+
+// TraceStats is the single-row result of the trace summary aggregate query.
+type TraceStats struct {
+	StartNs         uint64
+	EndNs           uint64
+	RootServiceName string
+	RootEntryPoint  string
+	TotalSpans      uint64
+	TotalErrorSpans uint64
+	HasMissingSpans bool
+	GenAISpanCount  uint64
+	Tokens          TraceAITokens
+	TotalCost       *float64
+}
+
+// GettableTraceSummary is the response for the trace summary API; the trace-level
+// fields match the waterfall response.
+type GettableTraceSummary struct {
+	StartTimestampMillis  uint64          `json:"startTimestampMillis"`
+	EndTimestampMillis    uint64          `json:"endTimestampMillis"`
+	RootServiceName       string          `json:"rootServiceName"`
+	RootServiceEntryPoint string          `json:"rootServiceEntryPoint"`
+	TotalSpansCount       uint64          `json:"totalSpansCount"`
+	TotalErrorSpansCount  uint64          `json:"totalErrorSpansCount"`
+	HasMissingSpans       bool            `json:"hasMissingSpans"`
+	AI                    *TraceAISummary `json:"ai,omitempty"`
+}
+
+// TraceAISummary is present when any span carries a gen_ai gate key.
+type TraceAISummary struct {
+	Tokens TraceAITokens `json:"tokens"`
+	// TotalCost is null when no span carries a cost attribute.
+	TotalCost *float64 `json:"totalCost" nullable:"true"`
+}
+
+type TraceAITokens struct {
+	Input      uint64 `json:"input"`
+	Output     uint64 `json:"output"`
+	CacheRead  uint64 `json:"cacheRead"`
+	CacheWrite uint64 `json:"cacheWrite"`
+	Reasoning  uint64 `json:"reasoning"`
+}
+
+func NewGettableTraceSummary(stats *TraceStats) *GettableTraceSummary {
+	summary := &GettableTraceSummary{
+		StartTimestampMillis:  stats.StartNs / 1_000_000,
+		EndTimestampMillis:    stats.EndNs / 1_000_000,
+		RootServiceName:       stats.RootServiceName,
+		RootServiceEntryPoint: stats.RootEntryPoint,
+		TotalSpansCount:       stats.TotalSpans,
+		TotalErrorSpansCount:  stats.TotalErrorSpans,
+		HasMissingSpans:       stats.HasMissingSpans,
+	}
+	if stats.GenAISpanCount > 0 {
+		summary.AI = &TraceAISummary{Tokens: stats.Tokens, TotalCost: stats.TotalCost}
+	}
+	return summary
+}

tests/fixtures/traces.py

@@ -895,6 +895,7 @@ _TRACES_TABLES_TO_TRUNCATE = [
     "span_attributes_keys",
     "signoz_error_index_v2",
     "top_level_operations",
+    "trace_summary",
 ]
 
 

tests/integration/tests/querier_json_body/08_resource_body_conflict.py

@@ -1,88 +0,0 @@
-import json
-from collections.abc import Callable
-from datetime import UTC, datetime, timedelta
-from http import HTTPStatus
-
-from fixtures import types
-from fixtures.auth import USER_ADMIN_EMAIL, USER_ADMIN_PASSWORD
-from fixtures.logs import Logs
-from fixtures.querier import (
-    build_raw_query,
-    get_rows,
-    make_query_request,
-)
-
-
-def test_resource_body_conflict(
-    signoz: types.SigNoz,
-    create_user_admin: None,  # pylint: disable=unused-argument
-    get_token: Callable[[str, str], str],
-    insert_logs: Callable[[list[Logs]], None],
-    export_json_types: Callable[[list[Logs]], None],
-) -> None:
-    now = datetime.now(tz=UTC)
-    start_ms = int((now - timedelta(seconds=10)).timestamp() * 1000)
-    end_ms = int(now.timestamp() * 1000)
-
-    # python's body carries service.name, making the bare key ambiguous across
-    # resource and body; java's body omits it, so ANDing body in would drop it.
-    logs_list = [
-        Logs(
-            timestamp=now - timedelta(seconds=2),
-            resources={"service.name": "java"},
-            body_v2=json.dumps({"msg": "hello"}),
-            body_promoted="",
-        ),
-        Logs(
-            timestamp=now - timedelta(seconds=1),
-            resources={"service.name": "python"},
-            body_v2=json.dumps({"service.name": "python"}),
-            body_promoted="",
-        ),
-    ]
-    export_json_types(logs_list)
-    insert_logs(logs_list)
-    token = get_token(USER_ADMIN_EMAIL, USER_ADMIN_PASSWORD)
-
-    cases = [
-        {
-            "name": "bare_key_resolves_to_resource",
-            "filter": "service.name = 'java'",
-            "expected_service_names": ["java"],
-            "expect_resource_warning": True,
-        },
-        {
-            "name": "qualified_body_key_targets_body",
-            "filter": "body.service.name = 'python'",
-            "expected_service_names": ["python"],
-            "expect_resource_warning": False,
-        },
-    ]
-
-    for case in cases:
-        response = make_query_request(
-            signoz,
-            token,
-            start_ms,
-            end_ms,
-            request_type="raw",
-            queries=[
-                build_raw_query(
-                    name="A",
-                    signal="logs",
-                    filter_expression=case["filter"],
-                    limit=100,
-                    step_interval=60,
-                )
-            ],
-        )
-
-        assert response.status_code == HTTPStatus.OK, f"{case['name']}: {response.text}"
-        rows = get_rows(response)
-        assert [row["data"]["resources_string"].get("service.name") for row in rows] == case["expected_service_names"], f"{case['name']}: {response.json()}"
-
-        warning = response.json()["data"].get("warning")
-        if case["expect_resource_warning"]:
-            assert warning is not None and "Using `resource` context by default" in warning["warnings"][0]["message"], f"{case['name']}: {warning}"
-        else:
-            assert warning is None, f"{case['name']}: {warning}"

tests/integration/tests/queriercommon/02_qb_warnings.py

@@ -64,8 +64,8 @@ def test_resource_default_warning(
         "Key `service.name` is ambiguous, found 2 different combinations of "
         "field context / data type: [name=service.name,context=resource,datatype=string "
         "name=service.name,context=attribute,datatype=string]. Using `resource` context "
-        "by default. To query another context explicitly, use the fully qualified name "
-        "(e.g., 'attribute.service.name' or 'body.service.name')"
+        "by default. To query attributes explicitly, use the fully qualified name "
+        "(e.g., 'attribute.service.name')"
     )
     assert warning["warnings"] == [
         {"message": expected_service_name_warning},
@@ -237,8 +237,8 @@ def test_deduped_warnings_for_single_query(
         "Key `service.name` is ambiguous, found 2 different combinations of "
         "field context / data type: [name=service.name,context=resource,datatype=string "
         "name=service.name,context=attribute,datatype=string]. Using `resource` context "
-        "by default. To query another context explicitly, use the fully qualified name "
-        "(e.g., 'attribute.service.name' or 'body.service.name')"
+        "by default. To query attributes explicitly, use the fully qualified name "
+        "(e.g., 'attribute.service.name')"
     )
     expected_status_code_warning = "Key `http.status_code` is ambiguous, found 2 different combinations of field context / data type: [name=http.status_code,context=attribute,datatype=number name=http.status_code,context=attribute,datatype=string]."
     assert warning["warnings"] == [
@@ -328,8 +328,8 @@ def test_deduped_warnings_for_multiple_queries(
         "Key `service.name` is ambiguous, found 2 different combinations of "
         "field context / data type: [name=service.name,context=resource,datatype=string "
         "name=service.name,context=attribute,datatype=string]. Using `resource` context "
-        "by default. To query another context explicitly, use the fully qualified name "
-        "(e.g., 'attribute.service.name' or 'body.service.name')"
+        "by default. To query attributes explicitly, use the fully qualified name "
+        "(e.g., 'attribute.service.name')"
     )
     expected_status_code_warning = "Key `http.status_code` is ambiguous, found 2 different combinations of field context / data type: [name=http.status_code,context=attribute,datatype=number name=http.status_code,context=attribute,datatype=string]."
     assert warning["warnings"] == [

tests/integration/tests/tracedetail/01_summary.py

@@ -0,0 +1,280 @@
+from collections.abc import Callable
+from datetime import UTC, datetime, timedelta
+from http import HTTPStatus
+
+import pytest
+import requests
+
+from fixtures import types
+from fixtures.auth import USER_ADMIN_EMAIL, USER_ADMIN_PASSWORD
+from fixtures.querierai import root_span
+from fixtures.traces import TraceIdGenerator, Traces, TracesKind, TracesStatusCode
+
+WATERFALL_FIELDS = (
+    "startTimestampMillis",
+    "endTimestampMillis",
+    "rootServiceName",
+    "rootServiceEntryPoint",
+    "totalSpansCount",
+    "totalErrorSpansCount",
+    "hasMissingSpans",
+)
+
+
+@pytest.mark.parametrize("attribute_backend", ["map", "json"])
+def test_summary_ai_trace(
+    signoz: types.SigNoz,
+    create_user_admin: None,  # pylint: disable=unused-argument
+    get_token: Callable[[str, str], str],
+    insert_traces: Callable[[list[Traces]], None],
+    use_attribute_backend: Callable[[str], None],
+    attribute_backend: str,
+) -> None:
+    """The summary carries the waterfall's trace-level fields and, for a trace with gen_ai
+    spans, token totals over every LLM span and the cost summed over the spans that carry it.
+    Spans are written to one layout only, so a read from the wrong column sums to zero."""
+    use_attribute_backend(attribute_backend)
+    write_mode = "json_only" if attribute_backend == "json" else "legacy_only"
+    now = datetime.now(tz=UTC).replace(second=0, microsecond=0)
+    service = f"td-summary-{attribute_backend}"
+    resources = {"service.name": service}
+    trace_id = TraceIdGenerator.trace_id()
+    root_id = TraceIdGenerator.span_id()
+
+    insert_traces(
+        [
+            root_span(now=now, trace_id=trace_id, span_id=root_id, resources=resources, duration_s=4),
+            Traces(
+                timestamp=now - timedelta(seconds=4),
+                duration=timedelta(seconds=1),
+                trace_id=trace_id,
+                span_id=TraceIdGenerator.span_id(),
+                parent_span_id=root_id,
+                name="chat gpt-4o-mini",
+                kind=TracesKind.SPAN_KIND_CLIENT,
+                status_code=TracesStatusCode.STATUS_CODE_OK,
+                resources=resources,
+                attributes={
+                    "gen_ai.request.model": "gpt-4o-mini",
+                    "gen_ai.usage.input_tokens": 100,
+                    "gen_ai.usage.output_tokens": 20,
+                    "gen_ai.usage.cache_read.input_tokens": 7,
+                    "_signoz.gen_ai.total_cost": 0.01,
+                },
+                attribute_write_mode=write_mode,
+            ),
+            # a failed LLM call: counted in tokens and errors, but priced by nobody
+            Traces(
+                timestamp=now - timedelta(seconds=3),
+                duration=timedelta(seconds=0.5),
+                trace_id=trace_id,
+                span_id=TraceIdGenerator.span_id(),
+                parent_span_id=root_id,
+                name="chat gpt-4o-mini",
+                kind=TracesKind.SPAN_KIND_CLIENT,
+                status_code=TracesStatusCode.STATUS_CODE_ERROR,
+                resources=resources,
+                attributes={
+                    "gen_ai.request.model": "gpt-4o-mini",
+                    "gen_ai.usage.input_tokens": 50,
+                    "gen_ai.usage.output_tokens": 5,
+                },
+                attribute_write_mode=write_mode,
+            ),
+            Traces(
+                timestamp=now - timedelta(seconds=2),
+                duration=timedelta(seconds=0.5),
+                trace_id=trace_id,
+                span_id=TraceIdGenerator.span_id(),
+                parent_span_id=root_id,
+                name="execute_tool",
+                kind=TracesKind.SPAN_KIND_INTERNAL,
+                status_code=TracesStatusCode.STATUS_CODE_OK,
+                resources=resources,
+                attributes={"gen_ai.tool.name": "get_weather"},
+                attribute_write_mode=write_mode,
+            ),
+        ]
+    )
+
+    token = get_token(USER_ADMIN_EMAIL, USER_ADMIN_PASSWORD)
+    headers = {"authorization": f"Bearer {token}", "content-type": "application/json"}
+
+    summary = requests.get(signoz.self.host_configs["8080"].get(f"/api/v1/traces/{trace_id}/summary"), timeout=10, headers=headers)
+    assert summary.status_code == HTTPStatus.OK, summary.text
+    summary = summary.json()["data"]
+
+    waterfall = requests.post(
+        signoz.self.host_configs["8080"].get(f"/api/v4/traces/{trace_id}/waterfall"),
+        timeout=10,
+        headers=headers,
+        json={"selectedSpanId": "", "uncollapsedSpans": []},
+    )
+    assert waterfall.status_code == HTTPStatus.OK, waterfall.text
+    waterfall = waterfall.json()["data"]
+
+    assert {k: summary[k] for k in WATERFALL_FIELDS} == {k: waterfall[k] for k in WATERFALL_FIELDS}
+    assert summary["rootServiceName"] == service
+    assert summary["rootServiceEntryPoint"] == "POST /api/chat"
+    assert summary["totalSpansCount"] == 4
+    assert summary["totalErrorSpansCount"] == 1
+    assert summary["hasMissingSpans"] is False
+
+    assert summary["ai"]["tokens"] == {"input": 150, "output": 25, "cacheRead": 7, "cacheWrite": 0, "reasoning": 0}
+    assert summary["ai"]["totalCost"] == pytest.approx(0.01)
+
+
+def test_summary_ai_trace_across_json_rollout(
+    signoz: types.SigNoz,
+    create_user_admin: None,  # pylint: disable=unused-argument
+    get_token: Callable[[str, str], str],
+    insert_traces: Callable[[list[Traces]], None],
+    seed_attribute_evolution: Callable[[str, datetime], None],
+) -> None:
+    """A trace that straddles the attribute JSON rollout has LLM spans written only to the legacy
+    maps before it and to the JSON column after it. The summary window covers both, so the gen_ai
+    reads must fall back across columns and sum every span."""
+    now = datetime.now(tz=UTC).replace(second=0, microsecond=0)
+    rollout = now - timedelta(minutes=30)
+    seed_attribute_evolution("traces", rollout)
+
+    service = "td-summary-rollout"
+    resources = {"service.name": service}
+    trace_id = TraceIdGenerator.trace_id()
+    root_id = TraceIdGenerator.span_id()
+
+    insert_traces(
+        [
+            Traces(
+                timestamp=rollout - timedelta(minutes=10),
+                duration=timedelta(minutes=15),
+                trace_id=trace_id,
+                span_id=root_id,
+                parent_span_id="",
+                name="long agent run",
+                kind=TracesKind.SPAN_KIND_SERVER,
+                status_code=TracesStatusCode.STATUS_CODE_OK,
+                resources=resources,
+                attribute_write_mode="legacy_only",
+            ),
+            Traces(
+                timestamp=rollout - timedelta(minutes=5),
+                duration=timedelta(seconds=1),
+                trace_id=trace_id,
+                span_id=TraceIdGenerator.span_id(),
+                parent_span_id=root_id,
+                name="chat gpt-4o-mini",
+                kind=TracesKind.SPAN_KIND_CLIENT,
+                status_code=TracesStatusCode.STATUS_CODE_OK,
+                resources=resources,
+                attributes={"gen_ai.request.model": "gpt-4o-mini", "gen_ai.usage.input_tokens": 100, "gen_ai.usage.output_tokens": 20, "_signoz.gen_ai.total_cost": 0.01},
+                attribute_write_mode="legacy_only",
+            ),
+            Traces(
+                timestamp=rollout + timedelta(minutes=4),
+                duration=timedelta(seconds=1),
+                trace_id=trace_id,
+                span_id=TraceIdGenerator.span_id(),
+                parent_span_id=root_id,
+                name="chat gpt-4o-mini",
+                kind=TracesKind.SPAN_KIND_CLIENT,
+                status_code=TracesStatusCode.STATUS_CODE_OK,
+                resources=resources,
+                attributes={"gen_ai.request.model": "gpt-4o-mini", "gen_ai.usage.input_tokens": 50, "gen_ai.usage.output_tokens": 5, "_signoz.gen_ai.total_cost": 0.02},
+                attribute_write_mode="json_only",
+            ),
+        ]
+    )
+
+    token = get_token(USER_ADMIN_EMAIL, USER_ADMIN_PASSWORD)
+    summary = requests.get(
+        signoz.self.host_configs["8080"].get(f"/api/v1/traces/{trace_id}/summary"),
+        timeout=10,
+        headers={"authorization": f"Bearer {token}"},
+    )
+    assert summary.status_code == HTTPStatus.OK, summary.text
+    summary = summary.json()["data"]
+
+    assert summary["totalSpansCount"] == 3
+    assert summary["rootServiceEntryPoint"] == "long agent run"
+    assert summary["ai"]["tokens"] == {"input": 150, "output": 25, "cacheRead": 0, "cacheWrite": 0, "reasoning": 0}
+    assert summary["ai"]["totalCost"] == pytest.approx(0.03)
+
+
+def test_summary_non_ai_trace_with_missing_root(
+    signoz: types.SigNoz,
+    create_user_admin: None,  # pylint: disable=unused-argument
+    get_token: Callable[[str, str], str],
+    insert_traces: Callable[[list[Traces]], None],
+) -> None:
+    """A trace whose recorded spans all hang off an unrecorded parent reports the synthetic
+    "Missing Span" root exactly as the waterfall does, and a trace without gen_ai spans has
+    no `ai` block."""
+    now = datetime.now(tz=UTC).replace(second=0, microsecond=0)
+    resources = {"service.name": "td-summary-orphan"}
+    trace_id = TraceIdGenerator.trace_id()
+    missing_parent_id = TraceIdGenerator.span_id()
+
+    insert_traces(
+        [
+            Traces(
+                timestamp=now - timedelta(seconds=5),
+                duration=timedelta(seconds=2),
+                trace_id=trace_id,
+                span_id=TraceIdGenerator.span_id(),
+                parent_span_id=missing_parent_id,
+                name="SELECT users",
+                kind=TracesKind.SPAN_KIND_CLIENT,
+                status_code=TracesStatusCode.STATUS_CODE_OK,
+                resources=resources,
+            ),
+            Traces(
+                timestamp=now - timedelta(seconds=4),
+                duration=timedelta(seconds=1),
+                trace_id=trace_id,
+                span_id=TraceIdGenerator.span_id(),
+                parent_span_id=missing_parent_id,
+                name="publish event",
+                kind=TracesKind.SPAN_KIND_PRODUCER,
+                status_code=TracesStatusCode.STATUS_CODE_OK,
+                resources=resources,
+            ),
+        ]
+    )
+
+    token = get_token(USER_ADMIN_EMAIL, USER_ADMIN_PASSWORD)
+    headers = {"authorization": f"Bearer {token}", "content-type": "application/json"}
+
+    summary = requests.get(signoz.self.host_configs["8080"].get(f"/api/v1/traces/{trace_id}/summary"), timeout=10, headers=headers)
+    assert summary.status_code == HTTPStatus.OK, summary.text
+    summary = summary.json()["data"]
+
+    waterfall = requests.post(
+        signoz.self.host_configs["8080"].get(f"/api/v4/traces/{trace_id}/waterfall"),
+        timeout=10,
+        headers=headers,
+        json={"selectedSpanId": "", "uncollapsedSpans": []},
+    )
+    assert waterfall.status_code == HTTPStatus.OK, waterfall.text
+    waterfall = waterfall.json()["data"]
+
+    assert {k: summary[k] for k in WATERFALL_FIELDS} == {k: waterfall[k] for k in WATERFALL_FIELDS}
+    assert summary["hasMissingSpans"] is True
+    assert summary["rootServiceName"] == ""
+    assert summary["rootServiceEntryPoint"] == "Missing Span"
+    assert summary["totalSpansCount"] == 2
+    assert "ai" not in summary
+
+
+def test_summary_unknown_trace(
+    signoz: types.SigNoz,
+    create_user_admin: None,  # pylint: disable=unused-argument
+    get_token: Callable[[str, str], str],
+) -> None:
+    token = get_token(USER_ADMIN_EMAIL, USER_ADMIN_PASSWORD)
+    response = requests.get(
+        signoz.self.host_configs["8080"].get(f"/api/v1/traces/{TraceIdGenerator.trace_id()}/summary"),
+        timeout=10,
+        headers={"authorization": f"Bearer {token}"},
+    )
+    assert response.status_code == HTTPStatus.NOT_FOUND, response.text