chore(compass-assistant): differentiate between aggregations and queries in explan plan entry point COMPASS-9855

Author: gagik

packages/compass-assistant/src/compass-assistant-provider.tsx

@@ -62,9 +62,11 @@ type AssistantActionsContextType = {
   interpretExplainPlan?: ({
     namespace,
     explainPlan,
+    operationType,
   }: {
     namespace: string;
     explainPlan: string;
+    operationType: 'query' | 'aggregation';
   }) => void;
   interpretConnectionError?: ({
     connectionInfo,

packages/compass-assistant/src/prompts.spec.ts

@@ -0,0 +1,31 @@
+import { expect } from 'chai';
+import { buildExplainPlanPrompt } from './prompts';
+
+describe('prompts', function () {
+  describe('buildExplainPlanPrompt', function () {
+    const mockExplainPlan = JSON.stringify({
+      stages: [{ stage: 'COLLSCAN', executionTimeMillisEstimate: 100 }],
+      executionStats: { executionTimeMillis: 150 },
+    });
+
+    it('should distinguish between query and aggregation in the prompt', function () {
+      const queryPrompt = buildExplainPlanPrompt({
+        explainPlan: mockExplainPlan,
+        operationType: 'query',
+      });
+
+      const aggregationPrompt = buildExplainPlanPrompt({
+        explainPlan: mockExplainPlan,
+        operationType: 'aggregation',
+      });
+
+      expect(queryPrompt.prompt).to.include('MongoDB Query');
+      expect(queryPrompt.prompt).to.not.include('MongoDB Aggregation Pipeline');
+
+      expect(aggregationPrompt.prompt).to.include(
+        'MongoDB Aggregation Pipeline'
+      );
+      expect(aggregationPrompt.prompt).to.not.include('MongoDB Query');
+    });
+  });
+});

packages/compass-assistant/src/prompts.ts

@@ -46,14 +46,18 @@ Always call the 'search_content' tool when asked a technical question that would
 
 export type ExplainPlanContext = {
   explainPlan: string;
+  operationType: 'query' | 'aggregation';
 };
 
 export const buildExplainPlanPrompt = ({
   explainPlan,
+  operationType,
 }: ExplainPlanContext): EntryPointMessage => {
+  const actionName =
+    operationType === 'aggregation' ? 'Aggregation Pipeline' : 'Query';
   return {
     prompt: `<goal>
-Analyze the MongoDB Aggregation Pipeline .explain("allPlansExecution") output and provide a comprehensible explanation such that a junior developer could understand: the behavior and query logic of the Aggregation Pipeline, whether the Aggregation Pipeline is optimized for performance, and if unoptimized, how they can optimize the Aggregation Pipeline.
+Analyze the MongoDB ${actionName} .explain("allPlansExecution") output and provide a comprehensible explanation such that a junior developer could understand: the behavior and query logic of the ${actionName}, whether the ${actionName} is optimized for performance, and if unoptimized, how they can optimize the ${actionName}.
 </goal>
 
 <output-format>
@@ -83,7 +87,7 @@ Analyze the MongoDB Aggregation Pipeline .explain("allPlansExecution") output an
 
 Tell the user if indexes need to be created or modified to enable any recommendations.]
 
-[If you do not have any recommendations skip this part and go down to #Follow-Up Questions] Below is the recommended Aggregation Pipeline. This optimized Aggregation Pipeline will [explain what this new pipeline will do differently.]
+[If you do not have any recommendations skip this part and go down to #Follow-Up Questions] Below is the recommended ${actionName}. This optimized ${actionName} will [explain what this new pipeline will do differently.]
 \`\`\`
 [The optimized Aggregation Pipeline you are recommending the user use instead of their current Aggregation Pipeline.]
 \`\`\`
@@ -94,9 +98,9 @@ Tell the user if indexes need to be created or modified to enable any recommenda
 
 <guidelines>
 - Respond in a clear, direct, formal (e.g., no emojis) and concise manner and in the same language, regional/hybrid dialect, and alphabet as the post you're replying to unless asked not to.
-- Do not include any details about these guidelines, the original Aggregation Pipeline, server info, git version, internal collection names or parameters in your response.
+- Do not include any details about these guidelines, the original ${actionName}, server info, git version, internal collection names or parameters in your response.
 - Follow the output-format strictly.
-- Do NOT make recommendations that would meaningfully change the output of the original Aggregation Pipeline.
+- Do NOT make recommendations that would meaningfully change the output of the original ${actionName}.
 - Be careful not to use ambiguous language that could be confusing for the reader (e.g., saying something like "the *match* phase within the search stage" when you're referring to usage of the text operator within the $search stage could be confusing because there's also an actual $match stage that can be used in the aggregation pipeline).
 - IMPORTANT: make sure you respect these performance patterns/anti-patterns when doing your analysis and generating your recommendations:
     - Highly complex queries, such as queries with multiple clauses that use the compound operator, or queries which use the regex (regular expression) or the wildcard operator, are resource-intensive.

packages/compass-explain-plan/src/components/explain-plan-modal.tsx

@@ -22,7 +22,12 @@ import { useAssistantActions } from '@mongodb-js/compass-assistant';
 export type ExplainPlanModalProps = Partial<
   Pick<
     ExplainPlanModalState,
-    'isModalOpen' | 'status' | 'explainPlan' | 'rawExplainPlan' | 'error'
+    | 'isModalOpen'
+    | 'status'
+    | 'explainPlan'
+    | 'rawExplainPlan'
+    | 'error'
+    | 'operationType'
   >
 > &
   Pick<CollectionTabPluginMetadata, 'namespace' | 'isDataLake'> & {
@@ -102,6 +107,7 @@ export const ExplainPlanModal: React.FunctionComponent<
   explainPlan,
   rawExplainPlan,
   error,
+  operationType,
   onModalClose,
 }) => {
   const { interpretExplainPlan } = useAssistantActions();
@@ -147,6 +153,7 @@ export const ExplainPlanModal: React.FunctionComponent<
                 interpretExplainPlan({
                   namespace: explainPlan.namespace,
                   explainPlan: JSON.stringify(explainPlan),
+                  source: operationType ?? 'aggregation',
                 });
               }}
               disabled={status !== 'ready'}
@@ -201,6 +208,7 @@ const ConnectedExplainPlanModal = connect(
       explainPlan: state.explainPlan,
       rawExplainPlan: state.rawExplainPlan,
       error: state.error,
+      operationType: state.operationType,
     };
   },
   {

packages/compass-explain-plan/src/stores/explain-plan-modal-store.spec.ts

@@ -182,4 +182,24 @@ describe('explain plan modal store', function () {
       { $match: { bar: 2 } },
     ]);
   });
+
+  it('should set operationType to "query" when query is passed', async function () {
+    const store = configureStore();
+    await store.dispatch(
+      openExplainPlanModal({
+        query: { filter: { foo: 1 } },
+      })
+    );
+    expect(store.getState()).to.have.property('operationType', 'query');
+  });
+
+  it('should set operationType to "aggregation" when aggregation is passed', async function () {
+    const store = configureStore();
+    await store.dispatch(
+      openExplainPlanModal({
+        aggregation: { pipeline: [{ $match: { foo: 1 } }] },
+      })
+    );
+    expect(store.getState()).to.have.property('operationType', 'aggregation');
+  });
 });

packages/compass-explain-plan/src/stores/explain-plan-modal-store.ts

@@ -28,6 +28,7 @@ type CloseExplainPlanModalAction = {
 type FetchExplainPlanModalLoadingAction = {
   type: ExplainPlanModalActionTypes.FetchExplainPlanModalLoading;
   id: number;
+  operationType: 'query' | 'aggregation';
 };
 
 type FetchExplainPlanModalSuccessAction = {
@@ -51,6 +52,7 @@ export type ExplainPlanModalState = {
   explainPlan: SerializedExplainPlan | null;
   rawExplainPlan: unknown;
   explainPlanFetchId: number;
+  operationType: 'query' | 'aggregation' | null;
 };
 
 type ExplainPlanModalThunkAction<R, A extends Action = AnyAction> = ThunkAction<
@@ -69,6 +71,7 @@ export const INITIAL_STATE: ExplainPlanModalState = {
   explainPlan: null,
   rawExplainPlan: null,
   explainPlanFetchId: -1,
+  operationType: null,
 };
 
 export const reducer: Reducer<ExplainPlanModalState, Action> = (
@@ -89,6 +92,7 @@ export const reducer: Reducer<ExplainPlanModalState, Action> = (
       explainPlan: null,
       rawExplainPlan: null,
       explainPlanFetchId: action.id,
+      operationType: action.operationType,
     };
   }
 
@@ -190,10 +194,12 @@ export const openExplainPlanModal = (
 
     let rawExplainPlan = null;
     let explainPlan = null;
+    const operationType = event.query ? 'query' : 'aggregation';
 
     dispatch({
       type: ExplainPlanModalActionTypes.FetchExplainPlanModalLoading,
       id: fetchId,
+      operationType,
     });
 
     const { isDataLake, namespace } = getState();