diff --git a/apps/x/packages/core/src/knowledge/build_graph.ts b/apps/x/packages/core/src/knowledge/build_graph.ts
index 5ca57e3b..104dc750 100644
--- a/apps/x/packages/core/src/knowledge/build_graph.ts
+++ b/apps/x/packages/core/src/knowledge/build_graph.ts
@@ -12,6 +12,7 @@ import {
     resetState,
     type GraphState,
 } from './graph_state.js';
+import { buildKnowledgeIndex, formatIndexForPrompt } from './knowledge_index.js';
 
 /**
  * Build obsidian-style knowledge graph by running topic extraction
@@ -29,7 +30,6 @@ const SOURCE_FOLDERS = [
     'granola_notes'  // Corrected from 'granola_meetings'
 ];
 const MAX_CONCURRENT_BATCHES = 1; // Process only 1 batch at a time to avoid overwhelming the agent
-const BATCH_DELAY_MS = 5000; // 5 second delay between batches to avoid overwhelming the system
 
 /**
  * Read content for specific files
@@ -66,7 +66,7 @@ async function waitForRunCompletion(runId: string): Promise<void> {
 /**
  * Run note creation agent on a batch of files to extract entities and create/update notes
  */
-async function createNotesFromBatch(files: { path: string; content: string }[], batchNumber: number): Promise<string> {
+async function createNotesFromBatch(files: { path: string; content: string }[], batchNumber: number, knowledgeIndex: string): Promise<string> {
     // Ensure notes output directory exists
     if (!fs.existsSync(NOTES_OUTPUT_DIR)) {
         fs.mkdirSync(NOTES_OUTPUT_DIR, { recursive: true });
@@ -77,17 +77,23 @@ async function createNotesFromBatch(files: { path: string; content: string }[],
         agentId: NOTE_CREATION_AGENT,
     });
 
-    // Build message with all files in the batch
+    // Build message with index and all files in the batch
     let message = `Process the following ${files.length} source files and create/update obsidian notes.\n\n`;
     message += `**Instructions:**\n`;
+    message += `- Use the KNOWLEDGE BASE INDEX below to resolve entities - DO NOT grep/search for existing notes\n`;
     message += `- Extract entities (people, organizations, projects, topics) from ALL files below\n`;
     message += `- Create or update notes in "knowledge" directory (workspace-relative paths like "knowledge/People/Name.md")\n`;
     message += `- If the same entity appears in multiple files, merge the information into a single note\n`;
-    message += `- Use workspace tools to read existing notes and write updates\n`;
+    message += `- Use workspace tools to read existing notes (when you need full content) and write updates\n`;
     message += `- Follow the note templates and guidelines in your instructions\n\n`;
+
+    // Add the knowledge base index
     message += `---\n\n`;
+    message += knowledgeIndex;
+    message += `\n---\n\n`;
 
     // Add each file's content
+    message += `# Source Files to Process\n\n`;
     files.forEach((file, idx) => {
         message += `## Source File ${idx + 1}: ${path.basename(file.path)}\n\n`;
         message += file.content;
@@ -144,15 +150,15 @@ export async function buildGraph(sourceDir: string): Promise<void> {
         const batchNumber = Math.floor(i / BATCH_SIZE) + 1;
 
         try {
-            console.log(`Processing batch ${batchNumber}/${totalBatches} (${batch.length} files)...`);
-            await createNotesFromBatch(batch, batchNumber);
-            console.log(`Batch ${batchNumber}/${totalBatches} complete`);
+            // Build fresh index before each batch to include notes from previous batches
+            console.log(`Building knowledge index for batch ${batchNumber}...`);
+            const index = buildKnowledgeIndex();
+            const indexForPrompt = formatIndexForPrompt(index);
+            console.log(`Index built: ${index.people.length} people, ${index.organizations.length} orgs, ${index.projects.length} projects, ${index.topics.length} topics, ${index.other.length} other`);
 
-            // Add delay between batches to avoid overwhelming the system
-            if (i + BATCH_SIZE < contentFiles.length) {
-                console.log(`Waiting ${BATCH_DELAY_MS/1000} seconds before next batch...`);
-                await new Promise(resolve => setTimeout(resolve, BATCH_DELAY_MS));
-            }
+            console.log(`Processing batch ${batchNumber}/${totalBatches} (${batch.length} files)...`);
+            await createNotesFromBatch(batch, batchNumber, indexForPrompt);
+            console.log(`Batch ${batchNumber}/${totalBatches} complete`);
 
             // Mark files in this batch as processed
             for (const file of batch) {
diff --git a/apps/x/packages/core/src/knowledge/knowledge_index.ts b/apps/x/packages/core/src/knowledge/knowledge_index.ts
new file mode 100644
index 00000000..2df46ca3
--- /dev/null
+++ b/apps/x/packages/core/src/knowledge/knowledge_index.ts
@@ -0,0 +1,355 @@
+import fs from 'fs';
+import path from 'path';
+import { WorkDir } from '../config/config.js';
+
+const KNOWLEDGE_DIR = path.join(WorkDir, 'knowledge');
+
+/**
+ * Index entry for a person note
+ */
+interface PersonEntry {
+    file: string;
+    name: string;
+    email?: string;
+    aliases: string[];
+    organization?: string;
+    role?: string;
+}
+
+/**
+ * Index entry for an organization note
+ */
+interface OrganizationEntry {
+    file: string;
+    name: string;
+    domain?: string;
+    aliases: string[];
+}
+
+/**
+ * Index entry for a project note
+ */
+interface ProjectEntry {
+    file: string;
+    name: string;
+    status?: string;
+    aliases: string[];
+}
+
+/**
+ * Index entry for a topic note
+ */
+interface TopicEntry {
+    file: string;
+    name: string;
+    keywords: string[];
+    aliases: string[];
+}
+
+/**
+ * Index entry for notes in non-standard folders (generic)
+ */
+interface OtherEntry {
+    file: string;
+    name: string;
+    folder: string;
+    aliases: string[];
+}
+
+/**
+ * The complete knowledge index
+ */
+export interface KnowledgeIndex {
+    people: PersonEntry[];
+    organizations: OrganizationEntry[];
+    projects: ProjectEntry[];
+    topics: TopicEntry[];
+    other: OtherEntry[];
+    buildTime: string;
+}
+
+/**
+ * Extract a field value from markdown content
+ * Looks for patterns like **Field:** value or **Field:** [[Link]]
+ */
+function extractField(content: string, fieldName: string): string | undefined {
+    // Match **Field:** value (handles [[links]] and plain text)
+    const pattern = new RegExp(`\\*\\*${fieldName}:\\*\\*\\s*(.+?)(?:\\n|$)`, 'i');
+    const match = content.match(pattern);
+    if (match) {
+        let value = match[1].trim();
+        // Extract text from [[link]] if present
+        const linkMatch = value.match(/\[\[(?:[^\]|]+\|)?([^\]]+)\]\]/);
+        if (linkMatch) {
+            value = linkMatch[1];
+        }
+        return value || undefined;
+    }
+    return undefined;
+}
+
+/**
+ * Extract comma-separated values from a field
+ */
+function extractList(content: string, fieldName: string): string[] {
+    const value = extractField(content, fieldName);
+    if (!value) return [];
+    return value.split(',').map(s => s.trim()).filter(s => s.length > 0);
+}
+
+/**
+ * Extract the title (first H1) from markdown content
+ */
+function extractTitle(content: string): string {
+    const match = content.match(/^#\s+(.+?)$/m);
+    return match ? match[1].trim() : '';
+}
+
+/**
+ * Parse a person note and extract index data
+ */
+function parsePersonNote(filePath: string, content: string): PersonEntry {
+    const name = extractTitle(content);
+    const relativePath = path.relative(KNOWLEDGE_DIR, filePath);
+
+    return {
+        file: relativePath,
+        name,
+        email: extractField(content, 'Email'),
+        aliases: extractList(content, 'Aliases'),
+        organization: extractField(content, 'Organization'),
+        role: extractField(content, 'Role'),
+    };
+}
+
+/**
+ * Parse an organization note and extract index data
+ */
+function parseOrganizationNote(filePath: string, content: string): OrganizationEntry {
+    const name = extractTitle(content);
+    const relativePath = path.relative(KNOWLEDGE_DIR, filePath);
+
+    return {
+        file: relativePath,
+        name,
+        domain: extractField(content, 'Domain'),
+        aliases: extractList(content, 'Aliases'),
+    };
+}
+
+/**
+ * Parse a project note and extract index data
+ */
+function parseProjectNote(filePath: string, content: string): ProjectEntry {
+    const name = extractTitle(content);
+    const relativePath = path.relative(KNOWLEDGE_DIR, filePath);
+
+    return {
+        file: relativePath,
+        name,
+        status: extractField(content, 'Status'),
+        aliases: extractList(content, 'Aliases'),
+    };
+}
+
+/**
+ * Parse a topic note and extract index data
+ */
+function parseTopicNote(filePath: string, content: string): TopicEntry {
+    const name = extractTitle(content);
+    const relativePath = path.relative(KNOWLEDGE_DIR, filePath);
+
+    return {
+        file: relativePath,
+        name,
+        keywords: extractList(content, 'Keywords'),
+        aliases: extractList(content, 'Aliases'),
+    };
+}
+
+/**
+ * Parse a generic note (for non-standard folders)
+ */
+function parseOtherNote(filePath: string, content: string): OtherEntry {
+    const name = extractTitle(content);
+    const relativePath = path.relative(KNOWLEDGE_DIR, filePath);
+    // Get the folder name (first part of relative path)
+    const folder = relativePath.split(path.sep)[0] || 'root';
+
+    return {
+        file: relativePath,
+        name,
+        folder,
+        aliases: extractList(content, 'Aliases'),
+    };
+}
+
+/**
+ * Recursively scan a directory for markdown files
+ */
+function scanDirectoryRecursive(dir: string): string[] {
+    if (!fs.existsSync(dir)) {
+        return [];
+    }
+
+    const files: string[] = [];
+    const entries = fs.readdirSync(dir);
+
+    for (const entry of entries) {
+        const fullPath = path.join(dir, entry);
+        const stat = fs.statSync(fullPath);
+
+        if (stat.isDirectory()) {
+            // Recursively scan subdirectories
+            files.push(...scanDirectoryRecursive(fullPath));
+        } else if (stat.isFile() && entry.endsWith('.md')) {
+            files.push(fullPath);
+        }
+    }
+
+    return files;
+}
+
+/**
+ * Determine which folder a file belongs to based on its path
+ */
+function getFolderType(filePath: string): string {
+    const relativePath = path.relative(KNOWLEDGE_DIR, filePath);
+    const parts = relativePath.split(path.sep);
+
+    // If file is directly in knowledge folder (no subfolder)
+    if (parts.length === 1) {
+        return 'root';
+    }
+
+    // Return the first folder name
+    return parts[0];
+}
+
+/**
+ * Build a complete index of the knowledge base
+ * Scans all notes recursively and extracts searchable fields using folder-based parsing
+ */
+export function buildKnowledgeIndex(): KnowledgeIndex {
+    const index: KnowledgeIndex = {
+        people: [],
+        organizations: [],
+        projects: [],
+        topics: [],
+        other: [],
+        buildTime: new Date().toISOString(),
+    };
+
+    // Scan entire knowledge directory recursively
+    const allFiles = scanDirectoryRecursive(KNOWLEDGE_DIR);
+
+    for (const filePath of allFiles) {
+        try {
+            const content = fs.readFileSync(filePath, 'utf-8');
+            const folderType = getFolderType(filePath);
+
+            // Use folder-based parsing
+            switch (folderType) {
+                case 'People':
+                    index.people.push(parsePersonNote(filePath, content));
+                    break;
+                case 'Organizations':
+                    index.organizations.push(parseOrganizationNote(filePath, content));
+                    break;
+                case 'Projects':
+                    index.projects.push(parseProjectNote(filePath, content));
+                    break;
+                case 'Topics':
+                    index.topics.push(parseTopicNote(filePath, content));
+                    break;
+                default:
+                    // Generic parsing for non-standard folders
+                    index.other.push(parseOtherNote(filePath, content));
+                    break;
+            }
+        } catch (error) {
+            console.error(`Error parsing note ${filePath}:`, error);
+        }
+    }
+
+    return index;
+}
+
+/**
+ * Format the index as a string for inclusion in agent prompts
+ */
+export function formatIndexForPrompt(index: KnowledgeIndex): string {
+    let output = '# Existing Knowledge Base Index\n\n';
+    output += `Built at: ${index.buildTime}\n\n`;
+
+    // People
+    output += '## People\n\n';
+    if (index.people.length === 0) {
+        output += '_No people notes yet_\n\n';
+    } else {
+        output += '| File | Name | Email | Organization | Aliases |\n';
+        output += '|------|------|-------|--------------|--------|\n';
+        for (const person of index.people) {
+            const aliases = person.aliases.length > 0 ? person.aliases.join(', ') : '-';
+            output += `| ${person.file} | ${person.name} | ${person.email || '-'} | ${person.organization || '-'} | ${aliases} |\n`;
+        }
+        output += '\n';
+    }
+
+    // Organizations
+    output += '## Organizations\n\n';
+    if (index.organizations.length === 0) {
+        output += '_No organization notes yet_\n\n';
+    } else {
+        output += '| File | Name | Domain | Aliases |\n';
+        output += '|------|------|--------|--------|\n';
+        for (const org of index.organizations) {
+            const aliases = org.aliases.length > 0 ? org.aliases.join(', ') : '-';
+            output += `| ${org.file} | ${org.name} | ${org.domain || '-'} | ${aliases} |\n`;
+        }
+        output += '\n';
+    }
+
+    // Projects
+    output += '## Projects\n\n';
+    if (index.projects.length === 0) {
+        output += '_No project notes yet_\n\n';
+    } else {
+        output += '| File | Name | Status | Aliases |\n';
+        output += '|------|------|--------|--------|\n';
+        for (const project of index.projects) {
+            const aliases = project.aliases.length > 0 ? project.aliases.join(', ') : '-';
+            output += `| ${project.file} | ${project.name} | ${project.status || '-'} | ${aliases} |\n`;
+        }
+        output += '\n';
+    }
+
+    // Topics
+    output += '## Topics\n\n';
+    if (index.topics.length === 0) {
+        output += '_No topic notes yet_\n\n';
+    } else {
+        output += '| File | Name | Keywords | Aliases |\n';
+        output += '|------|------|----------|--------|\n';
+        for (const topic of index.topics) {
+            const keywords = topic.keywords.length > 0 ? topic.keywords.join(', ') : '-';
+            const aliases = topic.aliases.length > 0 ? topic.aliases.join(', ') : '-';
+            output += `| ${topic.file} | ${topic.name} | ${keywords} | ${aliases} |\n`;
+        }
+        output += '\n';
+    }
+
+    // Other (non-standard folders)
+    if (index.other.length > 0) {
+        output += '## Other Notes\n\n';
+        output += '| File | Name | Folder | Aliases |\n';
+        output += '|------|------|--------|--------|\n';
+        for (const note of index.other) {
+            const aliases = note.aliases.length > 0 ? note.aliases.join(', ') : '-';
+            output += `| ${note.file} | ${note.name} | ${note.folder} | ${aliases} |\n`;
+        }
+        output += '\n';
+    }
+
+    return output;
+}
diff --git a/apps/x/packages/core/src/knowledge/note_creation_high.md b/apps/x/packages/core/src/knowledge/note_creation_high.md
index 16770871..3cf10de6 100644
--- a/apps/x/packages/core/src/knowledge/note_creation_high.md
+++ b/apps/x/packages/core/src/knowledge/note_creation_high.md
@@ -49,16 +49,31 @@ You have full read access to the existing knowledge directory. Use this extensiv
    - name: e.g., "Arj"
    - email: e.g., "arj@rowboat.com"
    - domain: e.g., "rowboat.com"
+4. **knowledge_index**: A pre-built index of all existing notes (provided in the message)
+
+# Knowledge Base Index
+
+**IMPORTANT:** You will receive a pre-built index of all existing notes at the start of each request. This index contains:
+- All people notes with their names, emails, aliases, and organizations
+- All organization notes with their names, domains, and aliases
+- All project notes with their names and statuses
+- All topic notes with their names and keywords
+
+**USE THE INDEX for entity resolution instead of grep/search commands.** This is much faster.
+
+When you need to:
+- Check if a person exists → Look up by name/email/alias in the index
+- Find an organization → Look up by name/domain in the index
+- Resolve "David" to a full name → Check index for people with that name/alias + organization context
+
+**Only use `cat` to read full note content** when you need details not in the index (e.g., existing activity logs, open items).
 
 # Tools Available
 
 You have access to `executeCommand` to run shell commands:
 ```
 executeCommand("ls {path}")                     # List directory contents
-executeCommand("cat {path}")                    # Read file contents  
-executeCommand("grep -r '{pattern}' {path}")    # Search across files
-executeCommand("grep -r -l '{pattern}' {path}") # List files containing pattern
-executeCommand("grep -r -i '{pattern}' {path}") # Case-insensitive search
+executeCommand("cat {path}")                    # Read file contents
 executeCommand("head -50 {path}")               # Read first 50 lines
 executeCommand("write {path} {content}")        # Create or overwrite file
 ```
@@ -66,9 +81,10 @@ executeCommand("write {path} {content}")        # Create or overwrite file
 **Important:** Use shell escaping for paths with spaces:
 ```
 executeCommand("cat 'knowledge_folder/People/Sarah Chen.md'")
-executeCommand("grep -r 'David' 'knowledge_folder/People/'")
 ```
 
+**NOTE:** Do NOT use grep to search for entities. Use the provided knowledge_index instead.
+
 # Output
 
 Either:
@@ -259,68 +275,44 @@ Variants found:
 
 ---
 
-# Step 3: Search for Existing Notes
+# Step 3: Look Up Existing Notes in Index
 
-For each variant identified, search the notes folder thoroughly.
+**Use the provided knowledge_index to find existing notes. Do NOT use grep commands.**
 
-## 3a: Search by People
-```bash
-# Search by full name
-executeCommand("grep -r -i -l 'Sarah Chen' '{knowledge_folder}/'")
+## 3a: Look Up People
 
-# Search by first name in People folder
-executeCommand("grep -r -i -l 'Sarah' '{knowledge_folder}/People/'")
+For each person variant (name, email, alias), check the index:
 
-# Search by email
-executeCommand("grep -r -i -l 'sarah@acme.com' '{knowledge_folder}/'")
-
-# Search by email domain (finds all people from same company)
-executeCommand("grep -r -i -l '@acme.com' '{knowledge_folder}/'")
-
-# Search Aliases fields
-executeCommand("grep -r -i 'Aliases.*Sarah' '{knowledge_folder}/People/'")
+```
+From index, find matches for:
+- "Sarah Chen" → Check People table for matching name
+- "Sarah" → Check People table for matching name or alias
+- "sarah@acme.com" → Check People table for matching email
+- "@acme.com" → Check People table for matching organization or check Organizations for domain
 ```
 
-## 3b: Search by Organizations
-```bash
-# List all organization notes
-executeCommand("ls '{knowledge_folder}/Organizations/'")
+## 3b: Look Up Organizations
 
-# Search for organization name
-executeCommand("grep -r -i -l 'Acme' '{knowledge_folder}/Organizations/'")
-
-# Search by domain
-executeCommand("grep -r -i 'Domain.*acme.com' '{knowledge_folder}/Organizations/'")
-
-# Search Aliases
-executeCommand("grep -r -i 'Aliases.*Acme' '{knowledge_folder}/Organizations/'")
+```
+From index, find matches for:
+- "Acme Corp" → Check Organizations table for matching name
+- "Acme" → Check Organizations table for matching name or alias
+- "acme.com" → Check Organizations table for matching domain
 ```
 
-## 3c: Search by Projects and Topics
-```bash
-# List all projects
-executeCommand("ls '{knowledge_folder}/Projects/'")
+## 3c: Look Up Projects and Topics
 
-# Search for project references
-executeCommand("grep -r -i 'pilot' '{knowledge_folder}/Projects/'")
-executeCommand("grep -r -i 'integration' '{knowledge_folder}/Projects/'")
-
-# Search for projects involving the organization
-executeCommand("grep -r -i 'Acme' '{knowledge_folder}/Projects/'")
-
-# List and search topics
-executeCommand("ls '{knowledge_folder}/Topics/'")
-executeCommand("grep -r -i 'SOC 2' '{knowledge_folder}/Topics/'")
+```
+From index, find matches for:
+- "the pilot" → Check Projects table for related names
+- "SOC 2" → Check Topics table for matching keywords
 ```
 
-## 3d: Read Candidate Notes
+## 3d: Read Full Notes When Needed
 
-For every note file found in searches, read it to understand context:
+Only read the full note content when you need details not in the index (e.g., activity logs, open items):
 ```bash
 executeCommand("cat '{knowledge_folder}/People/Sarah Chen.md'")
-executeCommand("cat '{knowledge_folder}/People/David Kim.md'")
-executeCommand("cat '{knowledge_folder}/Organizations/Acme Corp.md'")
-executeCommand("cat '{knowledge_folder}/Projects/Acme Integration.md'")
 ```
 
 **Why read these notes:**
diff --git a/apps/x/packages/core/src/knowledge/note_creation_low.md b/apps/x/packages/core/src/knowledge/note_creation_low.md
index 7869bc0b..bb5abfcc 100644
--- a/apps/x/packages/core/src/knowledge/note_creation_low.md
+++ b/apps/x/packages/core/src/knowledge/note_creation_low.md
@@ -49,6 +49,24 @@ You have full read access to the existing knowledge directory. Use this extensiv
    - name: e.g., "Arj"
    - email: e.g., "arj@rowboat.com"
    - domain: e.g., "rowboat.com"
+4. **knowledge_index**: A pre-built index of all existing notes (provided in the message)
+
+# Knowledge Base Index
+
+**IMPORTANT:** You will receive a pre-built index of all existing notes at the start of each request. This index contains:
+- All people notes with their names, emails, aliases, and organizations
+- All organization notes with their names, domains, and aliases
+- All project notes with their names and statuses
+- All topic notes with their names and keywords
+
+**USE THE INDEX for entity resolution instead of grep/search commands.** This is much faster.
+
+When you need to:
+- Check if a person exists → Look up by name/email/alias in the index
+- Find an organization → Look up by name/domain in the index
+- Resolve "David" to a full name → Check index for people with that name/alias + organization context
+
+**Only use `cat` to read full note content** when you need details not in the index (e.g., existing activity logs, open items).
 
 # Tools Available
 
@@ -56,9 +74,6 @@ You have access to `executeCommand` to run shell commands:
 ```
 executeCommand("ls {path}")                     # List directory contents
 executeCommand("cat {path}")                    # Read file contents
-executeCommand("grep -r '{pattern}' {path}")    # Search across files
-executeCommand("grep -r -l '{pattern}' {path}") # List files containing pattern
-executeCommand("grep -r -i '{pattern}' {path}") # Case-insensitive search
 executeCommand("head -50 {path}")               # Read first 50 lines
 executeCommand("write {path} {content}")        # Create or overwrite file
 ```
@@ -66,9 +81,10 @@ executeCommand("write {path} {content}")        # Create or overwrite file
 **Important:** Use shell escaping for paths with spaces:
 ```
 executeCommand("cat 'knowledge_folder/People/Sarah Chen.md'")
-executeCommand("grep -r 'David' 'knowledge_folder/People/'")
 ```
 
+**NOTE:** Do NOT use grep to search for entities. Use the provided knowledge_index instead.
+
 # Output
 
 Either:
@@ -223,40 +239,87 @@ Create a list of all variants found.
 
 ---
 
-# Step 3: Search for Existing Notes
+# Step 3: Look Up Existing Notes in Index
 
-For each variant identified, search the notes folder thoroughly.
+**Use the provided knowledge_index to find existing notes. Do NOT use grep commands.**
 
-## 3a: Search by People
-```bash
-executeCommand("grep -r -i -l 'Sarah Chen' '{knowledge_folder}/'")
-executeCommand("grep -r -i -l 'Sarah' '{knowledge_folder}/People/'")
-executeCommand("grep -r -i -l 'sarah@acme.com' '{knowledge_folder}/'")
-executeCommand("grep -r -i -l '@acme.com' '{knowledge_folder}/'")
-executeCommand("grep -r -i 'Aliases.*Sarah' '{knowledge_folder}/People/'")
+## 3a: Look Up People
+
+For each person variant (name, email, alias), check the index:
+
+```
+From index, find matches for:
+- "Sarah Chen" → Check People table for matching name
+- "Sarah" → Check People table for matching name or alias
+- "sarah@acme.com" → Check People table for matching email
+- "@acme.com" → Check People table for matching organization or check Organizations for domain
 ```
 
-## 3b: Search by Organizations
-```bash
-executeCommand("ls '{knowledge_folder}/Organizations/'")
-executeCommand("grep -r -i -l 'Acme' '{knowledge_folder}/Organizations/'")
-executeCommand("grep -r -i 'Domain.*acme.com' '{knowledge_folder}/Organizations/'")
+## 3b: Look Up Organizations
+
+```
+From index, find matches for:
+- "Acme Corp" → Check Organizations table for matching name
+- "Acme" → Check Organizations table for matching name or alias
+- "acme.com" → Check Organizations table for matching domain
 ```
 
-## 3c: Search by Projects and Topics
-```bash
-executeCommand("ls '{knowledge_folder}/Projects/'")
-executeCommand("grep -r -i 'Acme' '{knowledge_folder}/Projects/'")
-executeCommand("ls '{knowledge_folder}/Topics/'")
+## 3c: Look Up Projects and Topics
+
+```
+From index, find matches for:
+- "the pilot" → Check Projects table for related names
+- "SOC 2" → Check Topics table for matching keywords
 ```
 
-## 3d: Read Candidate Notes
+## 3d: Read Full Notes When Needed
 
-For every note file found in searches, read it to understand context.
+Only read the full note content when you need details not in the index (e.g., activity logs, open items):
+```bash
+executeCommand("cat '{knowledge_folder}/People/Sarah Chen.md'")
+```
+
+**Why read these notes:**
+- Find canonical names (David → David Kim)
+- Check Aliases fields for known variants
+- Understand existing relationships
+- See organization context for disambiguation
+- Check what's already captured (avoid duplicates)
+- Review open items (some might be resolved)
+- **Check current status fields (might need updating)**
+- **Check current roles (might have changed)**
 
 ## 3e: Matching Criteria
 
-Use standard matching criteria for names, emails, and organizations.
+Use these criteria to determine if a variant matches an existing note:
+
+**People matching:**
+
+| Source has | Note has | Match if |
+|------------|----------|----------|
+| First name "Sarah" | Full name "Sarah Chen" | Same organization context |
+| Email "sarah@acme.com" | Email field | Exact match |
+| Email domain "@acme.com" | Organization "Acme Corp" | Domain matches org |
+| Role "VP Engineering" | Role field | Same org + same role |
+| First name + company context | Full name + Organization | Company matches |
+| Any variant | Aliases field | Listed in aliases |
+
+**Organization matching:**
+
+| Source has | Note has | Match if |
+|------------|----------|----------|
+| "Acme" | "Acme Corp" | Substring match |
+| "Acme Corporation" | "Acme Corp" | Same root name |
+| "@acme.com" | Domain field | Domain matches |
+| Any variant | Aliases field | Listed in aliases |
+
+**Project matching:**
+
+| Source has | Note has | Match if |
+|------------|----------|----------|
+| "the pilot" | "Acme Pilot" | Same org context in source |
+| "integration project" | "Acme Integration" | Same org + similar type |
+| "Series A" | "Series A Fundraise" | Unique identifier match |
 
 ---
 
diff --git a/apps/x/packages/core/src/knowledge/note_creation_medium.md b/apps/x/packages/core/src/knowledge/note_creation_medium.md
index b53ed578..da7bbdf5 100644
--- a/apps/x/packages/core/src/knowledge/note_creation_medium.md
+++ b/apps/x/packages/core/src/knowledge/note_creation_medium.md
@@ -49,6 +49,24 @@ You have full read access to the existing knowledge directory. Use this extensiv
    - name: e.g., "Arj"
    - email: e.g., "arj@rowboat.com"
    - domain: e.g., "rowboat.com"
+4. **knowledge_index**: A pre-built index of all existing notes (provided in the message)
+
+# Knowledge Base Index
+
+**IMPORTANT:** You will receive a pre-built index of all existing notes at the start of each request. This index contains:
+- All people notes with their names, emails, aliases, and organizations
+- All organization notes with their names, domains, and aliases
+- All project notes with their names and statuses
+- All topic notes with their names and keywords
+
+**USE THE INDEX for entity resolution instead of grep/search commands.** This is much faster.
+
+When you need to:
+- Check if a person exists → Look up by name/email/alias in the index
+- Find an organization → Look up by name/domain in the index
+- Resolve "David" to a full name → Check index for people with that name/alias + organization context
+
+**Only use `cat` to read full note content** when you need details not in the index (e.g., existing activity logs, open items).
 
 # Tools Available
 
@@ -56,9 +74,6 @@ You have access to `executeCommand` to run shell commands:
 ```
 executeCommand("ls {path}")                     # List directory contents
 executeCommand("cat {path}")                    # Read file contents
-executeCommand("grep -r '{pattern}' {path}")    # Search across files
-executeCommand("grep -r -l '{pattern}' {path}") # List files containing pattern
-executeCommand("grep -r -i '{pattern}' {path}") # Case-insensitive search
 executeCommand("head -50 {path}")               # Read first 50 lines
 executeCommand("write {path} {content}")        # Create or overwrite file
 ```
@@ -66,9 +81,10 @@ executeCommand("write {path} {content}")        # Create or overwrite file
 **Important:** Use shell escaping for paths with spaces:
 ```
 executeCommand("cat 'knowledge_folder/People/Sarah Chen.md'")
-executeCommand("grep -r 'David' 'knowledge_folder/People/'")
 ```
 
+**NOTE:** Do NOT use grep to search for entities. Use the provided knowledge_index instead.
+
 # Output
 
 Either:
@@ -260,68 +276,44 @@ Variants found:
 
 ---
 
-# Step 3: Search for Existing Notes
+# Step 3: Look Up Existing Notes in Index
 
-For each variant identified, search the notes folder thoroughly.
+**Use the provided knowledge_index to find existing notes. Do NOT use grep commands.**
 
-## 3a: Search by People
-```bash
-# Search by full name
-executeCommand("grep -r -i -l 'Sarah Chen' '{knowledge_folder}/'")
+## 3a: Look Up People
 
-# Search by first name in People folder
-executeCommand("grep -r -i -l 'Sarah' '{knowledge_folder}/People/'")
+For each person variant (name, email, alias), check the index:
 
-# Search by email
-executeCommand("grep -r -i -l 'sarah@acme.com' '{knowledge_folder}/'")
-
-# Search by email domain (finds all people from same company)
-executeCommand("grep -r -i -l '@acme.com' '{knowledge_folder}/'")
-
-# Search Aliases fields
-executeCommand("grep -r -i 'Aliases.*Sarah' '{knowledge_folder}/People/'")
+```
+From index, find matches for:
+- "Sarah Chen" → Check People table for matching name
+- "Sarah" → Check People table for matching name or alias
+- "sarah@acme.com" → Check People table for matching email
+- "@acme.com" → Check People table for matching organization or check Organizations for domain
 ```
 
-## 3b: Search by Organizations
-```bash
-# List all organization notes
-executeCommand("ls '{knowledge_folder}/Organizations/'")
+## 3b: Look Up Organizations
 
-# Search for organization name
-executeCommand("grep -r -i -l 'Acme' '{knowledge_folder}/Organizations/'")
-
-# Search by domain
-executeCommand("grep -r -i 'Domain.*acme.com' '{knowledge_folder}/Organizations/'")
-
-# Search Aliases
-executeCommand("grep -r -i 'Aliases.*Acme' '{knowledge_folder}/Organizations/'")
+```
+From index, find matches for:
+- "Acme Corp" → Check Organizations table for matching name
+- "Acme" → Check Organizations table for matching name or alias
+- "acme.com" → Check Organizations table for matching domain
 ```
 
-## 3c: Search by Projects and Topics
-```bash
-# List all projects
-executeCommand("ls '{knowledge_folder}/Projects/'")
+## 3c: Look Up Projects and Topics
 
-# Search for project references
-executeCommand("grep -r -i 'pilot' '{knowledge_folder}/Projects/'")
-executeCommand("grep -r -i 'integration' '{knowledge_folder}/Projects/'")
-
-# Search for projects involving the organization
-executeCommand("grep -r -i 'Acme' '{knowledge_folder}/Projects/'")
-
-# List and search topics
-executeCommand("ls '{knowledge_folder}/Topics/'")
-executeCommand("grep -r -i 'SOC 2' '{knowledge_folder}/Topics/'")
+```
+From index, find matches for:
+- "the pilot" → Check Projects table for related names
+- "SOC 2" → Check Topics table for matching keywords
 ```
 
-## 3d: Read Candidate Notes
+## 3d: Read Full Notes When Needed
 
-For every note file found in searches, read it to understand context:
+Only read the full note content when you need details not in the index (e.g., activity logs, open items):
 ```bash
 executeCommand("cat '{knowledge_folder}/People/Sarah Chen.md'")
-executeCommand("cat '{knowledge_folder}/People/David Kim.md'")
-executeCommand("cat '{knowledge_folder}/Organizations/Acme Corp.md'")
-executeCommand("cat '{knowledge_folder}/Projects/Acme Integration.md'")
 ```
 
 **Why read these notes:**