feat: add normalize episode content before storage

apps/webapp/app/services/graphModels/episode.ts

@@ -6,6 +6,7 @@ export async function saveEpisode(episode: EpisodicNode): Promise<string> {
     MERGE (e:Episode {uuid: $uuid})
     ON CREATE SET
       e.content = $content,
+      e.originalContent = $originalContent,
       e.contentEmbedding = $contentEmbedding,
       e.type = $type,
       e.source = $source,
@@ -18,6 +19,7 @@ export async function saveEpisode(episode: EpisodicNode): Promise<string> {
     ON MATCH SET
       e.content = $content,
       e.contentEmbedding = $contentEmbedding,
+      e.originalContent = $originalContent,
       e.type = $type,
       e.source = $source,
       e.validAt = $validAt,
@@ -30,6 +32,7 @@ export async function saveEpisode(episode: EpisodicNode): Promise<string> {
   const params = {
     uuid: episode.uuid,
     content: episode.content,
+    originalContent: episode.originalContent,
     source: episode.source,
     type: episode.type,
     userId: episode.userId || null,
@@ -59,6 +62,7 @@ export async function getEpisode(uuid: string): Promise<EpisodicNode | null> {
   return {
     uuid: episode.uuid,
     content: episode.content,
+    originalContent: episode.originalContent,
     contentEmbedding: episode.contentEmbedding,
     type: episode.type,
     source: episode.source,
@@ -112,6 +116,7 @@ export async function getRecentEpisodes(params: {
     return {
       uuid: episode.uuid,
       content: episode.content,
+      originalContent: episode.originalContent,
       contentEmbedding: episode.contentEmbedding,
       type: episode.type,
       source: episode.source,

apps/webapp/app/services/graphModels/statement.ts

@@ -64,10 +64,14 @@ export async function saveTriple(triple: Triple): Promise<string> {
   MATCH (object:Entity {uuid: $objectUuid, userId: $userId})
   MATCH (episode:Episode {uuid: $episodeUuid, userId: $userId})
   
-  CREATE (episode)-[:HAS_PROVENANCE {uuid: $provenanceEdgeUuid, createdAt: $createdAt}]->(statement)
+  MERGE (episode)-[prov:HAS_PROVENANCE]->(statement)
-  CREATE (statement)-[:HAS_SUBJECT {uuid: $subjectEdgeUuid, createdAt: $createdAt}]->(subject)
+    ON CREATE SET prov.uuid = $provenanceEdgeUuid, prov.createdAt = $createdAt
-  CREATE (statement)-[:HAS_PREDICATE {uuid: $predicateEdgeUuid, createdAt: $createdAt}]->(predicate)
+  MERGE (statement)-[subj:HAS_SUBJECT]->(subject)
-  CREATE (statement)-[:HAS_OBJECT {uuid: $objectEdgeUuid, createdAt: $createdAt}]->(object)
+    ON CREATE SET subj.uuid = $subjectEdgeUuid, subj.createdAt = $createdAt
+  MERGE (statement)-[pred:HAS_PREDICATE]->(predicate)
+    ON CREATE SET pred.uuid = $predicateEdgeUuid, pred.createdAt = $createdAt
+  MERGE (statement)-[obj:HAS_OBJECT]->(object)
+    ON CREATE SET obj.uuid = $objectEdgeUuid, obj.createdAt = $createdAt
   
   RETURN statement.uuid as uuid
   `;
@@ -267,6 +271,7 @@ export async function getTripleForStatement({
   const provenance: EpisodicNode = {
     uuid: episodeProps.uuid,
     content: episodeProps.content,
+    originalContent: episodeProps.originalContent,
     source: episodeProps.source,
     type: episodeProps.type,
     createdAt: new Date(episodeProps.createdAt),

apps/webapp/app/services/knowledgeGraph.server.ts

@@ -1,7 +1,6 @@
 import { openai } from "@ai-sdk/openai";
 import { type CoreMessage, embed } from "ai";
 import {
-  entityTypes,
   EpisodeType,
   LLMModelEnum,
   type AddEpisodeParams,
@@ -27,6 +26,8 @@ import {
   saveTriple,
 } from "./graphModels/statement";
 import { makeModelCall } from "~/lib/model.server";
+import { Apps, getNodeTypes, getNodeTypesString } from "~/utils/presets/nodes";
+import { normalizePrompt } from "./prompts";
 
 // Default number of previous episodes to retrieve for context
 const DEFAULT_EPISODE_WINDOW = 5;
@@ -61,10 +62,16 @@ export class KnowledgeGraphService {
         source: params.source,
       });
 
+      const normalizedEpisodeBody = await this.normalizeEpisodeBody(
+        params.episodeBody,
+        params.source,
+      );
+
       // Step 2: Episode Creation - Create or retrieve the episode
       const episode: EpisodicNode = {
         uuid: crypto.randomUUID(),
-        content: params.episodeBody,
+        content: normalizedEpisodeBody,
+        originalContent: params.episodeBody,
         source: params.source,
         type: params.type || EpisodeType.Text,
         createdAt: now,
@@ -130,6 +137,12 @@ export class KnowledgeGraphService {
     episode: EpisodicNode,
     previousEpisodes: EpisodicNode[],
   ): Promise<EntityNode[]> {
+    // Get all app keys
+    const allAppEnumValues = Object.values(Apps);
+
+    // Get all node types
+    const entityTypes = getNodeTypes(allAppEnumValues);
+
     // Use the prompt library to get the appropriate prompts
     const context = {
       episodeContent: episode.content,
@@ -172,7 +185,9 @@ export class KnowledgeGraphService {
             name: entity.name,
             type: entity.type,
             attributes: entity.attributes || {},
-            nameEmbedding: await this.getEmbedding(entity.name),
+            nameEmbedding: await this.getEmbedding(
+              `${entity.type}: ${entity.name}`,
+            ),
             createdAt: new Date(),
             userId: episode.userId,
           })),
@@ -652,4 +667,35 @@ export class KnowledgeGraphService {
 
     return { resolvedStatements, invalidatedStatements };
   }
+
+  /**
+   * Normalize an episode by extracting entities and creating nodes and statements
+   */
+  private async normalizeEpisodeBody(episodeBody: string, source: string) {
+    let appEnumValues: Apps[] = [];
+    if (Apps[source.toUpperCase() as keyof typeof Apps]) {
+      appEnumValues = [Apps[source.toUpperCase() as keyof typeof Apps]];
+    }
+    const entityTypes = getNodeTypesString(appEnumValues);
+
+    const context = {
+      episodeContent: episodeBody,
+      entityTypes: entityTypes,
+      source,
+    };
+    const messages = normalizePrompt(context);
+    let responseText = "";
+    await makeModelCall(false, LLMModelEnum.GPT41, messages, (text) => {
+      responseText = text;
+    });
+    let normalizedEpisodeBody = "";
+    const outputMatch = responseText.match(/<output>([\s\S]*?)<\/output>/);
+    if (outputMatch && outputMatch[1]) {
+      normalizedEpisodeBody = outputMatch[1].trim();
+    } else {
+      normalizedEpisodeBody = episodeBody;
+    }
+
+    return normalizedEpisodeBody;
+  }
 }

apps/webapp/app/services/prompts/index.ts

@@ -1,2 +1,3 @@
 export * from "./nodes";
 export * from "./statements";
+export * from "./normalize";

apps/webapp/app/services/prompts/nodes.ts

@@ -4,30 +4,6 @@
 
 import { type CoreMessage } from "ai";
 
-export interface ExtractedEntity {
-  name: string;
-  type: string;
-  attributes?: Record<string, any>;
-}
-
-export interface ExtractedEntities {
-  entities: ExtractedEntity[];
-}
-
-export interface MissedEntities {
-  missedEntities: string[];
-}
-
-export interface EntityClassificationTriple {
-  uuid: string;
-  name: string;
-  type: string | null;
-}
-
-export interface EntityClassification {
-  entityClassifications: EntityClassificationTriple[];
-}
-
 /**
  * Extract entities from an episode using message-based approach
  */
@@ -47,10 +23,14 @@ You are given a conversation context and a CURRENT EPISODE. Your task is to extr
 1. **Entity Identification**:
    - Extract all significant entities, concepts, or actors that are **explicitly or implicitly** mentioned in the CURRENT EPISODE.
    - **Exclude** entities mentioned only in the PREVIOUS EPISODES (they are for context only).
+   - For identity statements like "I am X" or "I'm X", extract BOTH the pronoun ("I") as a Alias entity AND the named entity (X).
+   - For pronouns that refer to named entities, extract them as separate Alias entities.
+
 
 2. **Entity Classification**:
    - Use the descriptions in ENTITY TYPES to classify each extracted entity.
    - Assign the appropriate type for each one.
+   - Classify pronouns (I, me, you, etc.) as Alias entities.
 
 3. **Exclusions**:
    - Do NOT extract entities representing relationships or actions (predicates will be handled separately).
@@ -58,6 +38,7 @@ You are given a conversation context and a CURRENT EPISODE. Your task is to extr
 
 4. **Formatting**:
    - Be **explicit and unambiguous** in naming entities (e.g., use full names when available).
+   - For pronouns, use the exact form as they appear in the text (e.g., "I", "me", "you").
 
 
 Format your response as a JSON object with the following structure:
@@ -113,10 +94,13 @@ You are given a TEXT. Your task is to extract **entity nodes** mentioned **expli
 
 1. **Entity Identification**:
    - Extract all significant entities, concepts, or actors that are **explicitly or implicitly** mentioned in the TEXT.
+   - For identity statements like "I am X" or "I'm X", extract BOTH the pronoun ("I") as a Alias entity AND the named entity (X).
+   - For pronouns that refer to named entities, extract them as separate Alias entities.
 
 2. **Entity Classification**:
    - Use the descriptions in ENTITY TYPES to classify each extracted entity.
    - Assign the appropriate type for each one.
+   - Classify pronouns (I, me, you, etc.) as Alias entities.
 
 3. **Exclusions**:
    - Do NOT extract entities representing relationships or actions (predicates will be handled separately).
@@ -124,7 +108,7 @@ You are given a TEXT. Your task is to extract **entity nodes** mentioned **expli
 
 4. **Formatting**:
    - Be **explicit and unambiguous** when naming entities (e.g., use full names when available).
-
+   - For pronouns, use the exact form as they appear in the text (e.g., "I", "me", "you").
 
 Format your response as a JSON object with the following structure:
 <output>

apps/webapp/app/services/prompts/normalize.ts

@@ -0,0 +1,47 @@
+import { type CoreMessage } from "ai";
+
+export const normalizePrompt = (
+  context: Record<string, any>,
+): CoreMessage[] => {
+  const sysPrompt = `
+You are a memory extraction system. Your task is to convert input information—such as user input, system events, or assistant actions—into clear, concise, third-person factual statements suitable for storage in a memory graph. These statements should be easily understandable and retrievable by any system or agent.
+
+## Memory Processing Guidelines
+- Always output memory statements in the third person (e.g., "User prefers...", "The assistant performed...", "The system detected...").
+- Convert input information into clear, concise memory statements.
+- Maintain a neutral, factual tone in all memory entries.
+- Structure memories as factual statements, not questions.
+- Include relevant context and temporal information when available.
+
+## Node Entity Types
+${context.entityTypes}
+
+## Memory Graph Integration
+- Each memory will be converted to a node in the memory graph.
+- Include relevant relationships between memory items when possible.
+- Specify temporal aspects when memories are time-sensitive.
+- Format memories to support efficient retrieval by any system or agent.
+
+When processing new information for memory storage, focus on extracting the core facts, preferences, and events that will be most useful for future reference by any system or agent.
+
+<output>
+{{processed_statement}}
+</output>
+`;
+
+  const userPrompt = `
+<CONTENT>
+${context.episodeContent}
+</CONTENT>
+
+<SOURCE>
+${context.source}
+</SOURCE>
+
+`;
+
+  return [
+    { role: "system", content: sysPrompt },
+    { role: "user", content: userPrompt },
+  ];
+};

apps/webapp/app/services/search.server.ts

@@ -4,6 +4,7 @@ import { embed } from "ai";
 import { logger } from "./logger.service";
 import { applyCrossEncoderReranking, applyWeightedRRF } from "./search/rerank";
 import {
+  getEpisodesByStatements,
   performBfsSearch,
   performBM25Search,
   performVectorSearch,
@@ -34,7 +35,7 @@ export class SearchService {
     query: string,
     userId: string,
     options: SearchOptions = {},
-  ): Promise<string[]> {
+  ): Promise<{ episodes: string[]; facts: string[] }> {
     // Default options
     const opts: Required<SearchOptions> = {
       limit: options.limit || 10,
@@ -71,7 +72,11 @@ export class SearchService {
     const filteredResults = this.applyAdaptiveFiltering(rankedStatements, opts);
 
     // 3. Return top results
-    return filteredResults.map((statement) => statement.fact);
+    const episodes = await getEpisodesByStatements(filteredResults);
+    return {
+      episodes: episodes.map((episode) => episode.content),
+      facts: filteredResults.map((statement) => statement.fact),
+    };
   }
 
   /**
@@ -84,12 +89,14 @@ export class SearchService {
   ): StatementNode[] {
     if (results.length === 0) return [];
 
+    let isRRF = false;
     // Extract scores from results
     const scoredResults = results.map((result) => {
       // Find the score based on reranking strategy used
       let score = 0;
       if ((result as any).rrfScore !== undefined) {
         score = (result as any).rrfScore;
+        isRRF = true;
       } else if ((result as any).mmrScore !== undefined) {
         score = (result as any).mmrScore;
       } else if ((result as any).crossEncoderScore !== undefined) {
@@ -117,16 +124,31 @@ export class SearchService {
     const minScore = Math.min(...scores);
     const scoreRange = maxScore - minScore;
 
-    // Define a minimum quality threshold as a fraction of the best score
+    let threshold = 0;
-    // This is relative to the query's score distribution rather than an absolute value
+    if (isRRF || scoreRange < 0.01) {
-    const relativeThreshold = options.scoreThreshold || 0.3; // 30% of the best score by default
+      // For RRF or other compressed score ranges, use a percentile-based approach
-    const absoluteMinimum = 0.1; // Absolute minimum threshold to prevent keeping very poor matches
+      // Keep top 70% (or whatever is specified in options) of results
+      const keepPercentage = 1 - (options.scoreThreshold || 0.3);
+      const keepCount = Math.max(
+        1,
+        Math.ceil(scoredResults.length * keepPercentage),
+      );
 
-    // Calculate the actual threshold as a percentage of the distance from min to max score
+      // Set threshold to the score of the last item we want to keep
-    const threshold = Math.max(
+      threshold =
+        keepCount < scoredResults.length
+          ? scoredResults[keepCount - 1].score
+          : 0;
+    } else {
+      // For normal score distributions, use the relative threshold approach
+      const relativeThreshold = options.scoreThreshold || 0.3;
+      const absoluteMinimum = 0.1;
+
+      threshold = Math.max(
         absoluteMinimum,
         minScore + scoreRange * relativeThreshold,
       );
+    }
 
     // Filter out low-quality results
     const filteredResults = scoredResults

apps/webapp/app/services/search/rerank.ts

@@ -89,7 +89,7 @@ export async function applyCrossEncoderReranking(
         {
           role: "system",
           content: `You are an expert tasked with determining whether the statement is relevant to the query
-            Respond with "True" if PASSAGE is relevant to QUERY and "False" otherwise.`,
+            Respond with "True" if STATEMENT is relevant to QUERY and "False" otherwise.`,
         },
         {
           role: "user",

apps/webapp/app/services/search/utils.ts

@@ -1,4 +1,4 @@
-import type { EntityNode, StatementNode } from "@core/types";
+import type { EntityNode, StatementNode, EpisodicNode } from "@core/types";
 import type { SearchOptions } from "../search.server";
 import type { Embedding } from "ai";
 import { logger } from "../logger.service";
@@ -219,3 +219,20 @@ export function combineAndDeduplicateStatements(
     ).values(),
   );
 }
+
+export async function getEpisodesByStatements(
+  statements: StatementNode[],
+): Promise<EpisodicNode[]> {
+  const cypher = `
+    MATCH (s:Statement)<-[:HAS_PROVENANCE]-(e:Episode)
+    WHERE s.uuid IN $statementUuids
+    RETURN distinct e
+  `;
+
+  const params = {
+    statementUuids: statements.map((s) => s.uuid),
+  };
+
+  const records = await runQuery(cypher, params);
+  return records.map((record) => record.get("e").properties as EpisodicNode);
+}

apps/webapp/app/utils/presets/nodes.ts

@@ -1,11 +1,13 @@
 export enum Apps {
   LINEAR = "LINEAR",
   SLACK = "SLACK",
+  SOL = "SOL",
 }
 
 export const AppNames = {
   [Apps.LINEAR]: "Linear",
   [Apps.SLACK]: "Slack",
+  [Apps.SOL]: "Sol",
 } as const;
 
 // General node types that are common across all apps
@@ -38,6 +40,33 @@ export const GENERAL_NODE_TYPES = {
 
 // App-specific node types
 export const APP_NODE_TYPES = {
+  [Apps.SOL]: {
+    TASK: {
+      name: "Sol Task",
+      description:
+        "An independent unit of work in Sol, such as a task, bug report, or feature request. Tasks can be associated with lists or linked as subtasks to other tasks.",
+    },
+    LIST: {
+      name: "Sol List",
+      description:
+        "A flexible container in Sol for organizing content such as tasks, text, or references. Lists are used for task tracking, information collections, or reference materials.",
+    },
+    PREFERENCE: {
+      name: "Sol Preference",
+      description:
+        "A user-stated intent, setting, or configuration in Sol, such as preferred formats, notification settings, timezones, or other customizations. Preferences reflect how a user wants the system to behave.",
+    },
+    COMMAND: {
+      name: "Sol Command",
+      description:
+        "A user-issued command or trigger phrase, often starting with '/' or '@', that directs the system or an app to perform a specific action. Commands should always be extracted as distinct, important user actions.",
+    },
+    AUTOMATION: {
+      name: "Sol Automation",
+      description:
+        "A workflow or rule in Sol that automatically performs actions based on specific conditions or triggers, such as recurring tasks, reminders, or integrations with other systems.",
+    },
+  },
   [Apps.LINEAR]: {
     ISSUE: {
       name: "Linear Issue",
@@ -102,3 +131,33 @@ export function getNodeTypes(apps: Array<keyof typeof APP_NODE_TYPES>) {
     appSpecific: appSpecificTypes,
   };
 }
+
+export function getNodeTypesString(apps: Array<keyof typeof APP_NODE_TYPES>) {
+  let nodeTypesString = "";
+  const generalTypes = Object.entries(GENERAL_NODE_TYPES)
+    .map(([key, value]) => {
+      return `- ${key}: "${value.description}"`;
+    })
+    .join("\n");
+  nodeTypesString += `General Node Types:\n${generalTypes}\n\n`;
+
+  const appSpecificTypes = apps.reduce((acc, appName) => {
+    return {
+      ...acc,
+      [appName]: APP_NODE_TYPES[appName],
+    };
+  }, {});
+
+  const appSpecificTypesString = Object.entries(appSpecificTypes)
+    .map(([appName, types]) => {
+      return `For ${appName}:\n${Object.entries(types as any)
+        .map(([key, value]: any) => {
+          return `- ${key}: "${value.description}"`;
+        })
+        .join("\n")}\n\n`;
+    })
+    .join("\n\n");
+
+  nodeTypesString += `App-specific Node Types:\n${appSpecificTypesString}`;
+  return nodeTypesString;
+}

packages/types/src/graph/graph.entity.ts

@@ -10,6 +10,7 @@ export enum EpisodeType {
 export interface EpisodicNode {
   uuid: string;
   content: string;
+  originalContent: string;
   contentEmbedding?: number[];
   type: string;
   source: string;
@@ -82,70 +83,3 @@ export type AddEpisodeResult = {
   statementsCreated: number;
   processingTimeMs: number;
 };
-
-export const entityTypes = {
-  general: {
-    PERSON: {
-      type: "PERSON",
-      description: "Any named individual mentioned or referenced.",
-    },
-    APP: {
-      type: "APP",
-      description: "Any third-party service or platform used by the user.",
-    },
-    SOL_AUTOMATION: {
-      type: "SOL_AUTOMATION",
-      description: "User workflows or flows combining triggers and actions.",
-    },
-    SOL_PREFERENCE: {
-      type: "SOL_PREFERENCE",
-      description: "User-stated intent, setting, or configuration like format, timezone, etc.",
-    },
-    COMMAND: {
-      type: "COMMAND",
-      description: "Trigger phrase mapped to an internal action, often starts with / or !",
-    },
-    TASK: {
-      type: "TASK",
-      description: "User-stated or inferred goal; may link to Person or App.",
-    },
-    EVENT: {
-      type: "EVENT",
-      description: "Time-based mention; supports parsing of phrases like 'next week', 'tomorrow'.",
-    },
-    LABEL: {
-      type: "LABEL",
-      description: "Optional categorization tag for organization or filtering.",
-    },
-    OBJECT: {
-      type: "OBJECT",
-      description: "Named non-person objects in the user's world (e.g., Projector, Car).",
-    },
-    TEAM: {
-      type: "TEAM",
-      description: "User-defined group of people, useful for permissions or targeting.",
-    },
-  },
-  app_specific: {
-    SLACK_CHANNEL: {
-      type: "SLACK_CHANNEL",
-      description: "Slack channel where automations or communications happen.",
-    },
-    SLACK_USER: {
-      type: "SLACK_USER",
-      description: "A user in Slack, can be tagged or messaged.",
-    },
-    GMAIL_THREAD: {
-      type: "GMAIL_THREAD",
-      description: "An email conversation thread in Gmail.",
-    },
-    NOTION_PAGE: {
-      type: "NOTION_PAGE",
-      description: "A page in Notion workspace.",
-    },
-    CALENDAR_EVENT: {
-      type: "CALENDAR_EVENT",
-      description: "Event from user's calendar (Google, Outlook, etc.).",
-    },
-  },
-};