chore: merge refactor/split-server-index into refactor/providers (brings main up to v1.29.5)

No behavioral changes — 1:1 code move with imports replacing inline definitions.

.gitignore

@@ -9,7 +9,6 @@ lerna-debug.log*
 # Build outputs
 dist/
 dist-server/
-dist-ssr/
 build/
 out/
 

server/claude-sdk.js

@@ -24,7 +24,7 @@ import {
   notifyRunStopped,
   notifyUserIfEnabled
 } from './services/notification-orchestrator.js';
-import { claudeAdapter } from './providers/claude/adapter.js';
+import { claudeAdapter } from './providers/claude/index.js';
 import { createNormalizedMessage } from './providers/types.js';
 import { getStatusChecker } from './providers/registry.js';
 

server/cursor-cli.js

@@ -1,7 +1,7 @@
 import { spawn } from 'child_process';
 import crossSpawn from 'cross-spawn';
 import { notifyRunFailed, notifyRunStopped } from './services/notification-orchestrator.js';
-import { cursorAdapter } from './providers/cursor/adapter.js';
+import { cursorAdapter } from './providers/cursor/index.js';
 import { createNormalizedMessage } from './providers/types.js';
 import { getStatusChecker } from './providers/registry.js';
 

server/gemini-response-handler.js

@@ -1,5 +1,5 @@
 // Gemini Response Handler - JSON Stream processing
-import { geminiAdapter } from './providers/gemini/adapter.js';
+import { geminiAdapter } from './providers/gemini/index.js';
 
 class GeminiResponseHandler {
   constructor(ws, options = {}) {

server/openai-codex.js

@@ -15,7 +15,7 @@
 
 import { Codex } from '@openai/codex-sdk';
 import { notifyRunFailed, notifyRunStopped } from './services/notification-orchestrator.js';
-import { codexAdapter } from './providers/codex/adapter.js';
+import { codexAdapter } from './providers/codex/index.js';
 import { createNormalizedMessage } from './providers/types.js';
 import { getStatusChecker } from './providers/registry.js';
 

server/providers/claude/adapter.js

@@ -5,7 +5,6 @@
  * @module adapters/claude
  */
 
-import { getSessionMessages } from '../../projects.js';
 import { createNormalizedMessage, generateMessageId } from '../types.js';
 import { isInternalContent } from '../utils.js';
 
@@ -200,79 +199,3 @@ export function normalizeMessage(raw, sessionId) {
 
   return messages;
 }
-
-/**
- * @type {import('../types.js').ProviderAdapter}
- */
-export const claudeAdapter = {
-  normalizeMessage,
-
-  /**
-   * Fetch session history from JSONL files, returning normalized messages.
-   */
-  async fetchHistory(sessionId, opts = {}) {
-    const { projectName, limit = null, offset = 0 } = opts;
-    if (!projectName) {
-      return { messages: [], total: 0, hasMore: false, offset: 0, limit: null };
-    }
-
-    let result;
-    try {
-      result = await getSessionMessages(projectName, sessionId, limit, offset);
-    } catch (error) {
-      console.warn(`[ClaudeAdapter] Failed to load session ${sessionId}:`, error.message);
-      return { messages: [], total: 0, hasMore: false, offset: 0, limit: null };
-    }
-
-    // getSessionMessages returns either an array (no limit) or { messages, total, hasMore }
-    const rawMessages = Array.isArray(result) ? result : (result.messages || []);
-    const total = Array.isArray(result) ? rawMessages.length : (result.total || 0);
-    const hasMore = Array.isArray(result) ? false : Boolean(result.hasMore);
-
-    // First pass: collect tool results for attachment to tool_use messages
-    const toolResultMap = new Map();
-    for (const raw of rawMessages) {
-      if (raw.message?.role === 'user' && Array.isArray(raw.message?.content)) {
-        for (const part of raw.message.content) {
-          if (part.type === 'tool_result') {
-            toolResultMap.set(part.tool_use_id, {
-              content: part.content,
-              isError: Boolean(part.is_error),
-              timestamp: raw.timestamp,
-              subagentTools: raw.subagentTools,
-              toolUseResult: raw.toolUseResult,
-            });
-          }
-        }
-      }
-    }
-
-    // Second pass: normalize all messages
-    const normalized = [];
-    for (const raw of rawMessages) {
-      const entries = normalizeMessage(raw, sessionId);
-      normalized.push(...entries);
-    }
-
-    // Attach tool results to their corresponding tool_use messages
-    for (const msg of normalized) {
-      if (msg.kind === 'tool_use' && msg.toolId && toolResultMap.has(msg.toolId)) {
-        const tr = toolResultMap.get(msg.toolId);
-        msg.toolResult = {
-          content: typeof tr.content === 'string' ? tr.content : JSON.stringify(tr.content),
-          isError: tr.isError,
-          toolUseResult: tr.toolUseResult,
-        };
-        msg.subagentTools = tr.subagentTools;
-      }
-    }
-
-    return {
-      messages: normalized,
-      total,
-      hasMore,
-      offset,
-      limit,
-    };
-  },
-};

server/providers/claude/config.js

@@ -0,0 +1 @@
+// TODO: migrate Claude session list/delete endpoints from server/index.js

server/providers/claude/index.js

@@ -0,0 +1,8 @@
+/**
+ * Claude provider barrel.
+ * Assembles the ProviderAdapter from adapter + sessions.
+ */
+import { normalizeMessage } from './adapter.js';
+import { fetchHistory } from './sessions.js';
+
+export const claudeAdapter = { normalizeMessage, fetchHistory };

server/providers/claude/sessions.js

@@ -0,0 +1,82 @@
+/**
+ * Claude provider session history.
+ *
+ * Fetches and normalizes persisted JSONL session data.
+ * @module adapters/claude/sessions
+ */
+
+import { normalizeMessage } from './adapter.js';
+import { getSessionMessages } from '../../projects.js';
+import { createNormalizedMessage } from '../types.js';
+
+/**
+ * Fetch session history from JSONL files, returning normalized messages.
+ * @param {string} sessionId
+ * @param {import('../types.js').FetchHistoryOptions} opts
+ * @returns {Promise<import('../types.js').FetchHistoryResult>}
+ */
+export async function fetchHistory(sessionId, opts = {}) {
+  const { projectName, limit = null, offset = 0 } = opts;
+  if (!projectName) {
+    return { messages: [], total: 0, hasMore: false, offset: 0, limit: null };
+  }
+
+  let result;
+  try {
+    result = await getSessionMessages(projectName, sessionId, limit, offset);
+  } catch (error) {
+    console.warn(`[ClaudeAdapter] Failed to load session ${sessionId}:`, error.message);
+    return { messages: [], total: 0, hasMore: false, offset: 0, limit: null };
+  }
+
+  // getSessionMessages returns either an array (no limit) or { messages, total, hasMore }
+  const rawMessages = Array.isArray(result) ? result : (result.messages || []);
+  const total = Array.isArray(result) ? rawMessages.length : (result.total || 0);
+  const hasMore = Array.isArray(result) ? false : Boolean(result.hasMore);
+
+  // First pass: collect tool results for attachment to tool_use messages
+  const toolResultMap = new Map();
+  for (const raw of rawMessages) {
+    if (raw.message?.role === 'user' && Array.isArray(raw.message?.content)) {
+      for (const part of raw.message.content) {
+        if (part.type === 'tool_result') {
+          toolResultMap.set(part.tool_use_id, {
+            content: part.content,
+            isError: Boolean(part.is_error),
+            timestamp: raw.timestamp,
+            subagentTools: raw.subagentTools,
+            toolUseResult: raw.toolUseResult,
+          });
+        }
+      }
+    }
+  }
+
+  // Second pass: normalize all messages
+  const normalized = [];
+  for (const raw of rawMessages) {
+    const entries = normalizeMessage(raw, sessionId);
+    normalized.push(...entries);
+  }
+
+  // Attach tool results to their corresponding tool_use messages
+  for (const msg of normalized) {
+    if (msg.kind === 'tool_use' && msg.toolId && toolResultMap.has(msg.toolId)) {
+      const tr = toolResultMap.get(msg.toolId);
+      msg.toolResult = {
+        content: typeof tr.content === 'string' ? tr.content : JSON.stringify(tr.content),
+        isError: tr.isError,
+        toolUseResult: tr.toolUseResult,
+      };
+      msg.subagentTools = tr.subagentTools;
+    }
+  }
+
+  return {
+    messages: normalized,
+    total,
+    hasMore,
+    offset,
+    limit,
+  };
+}

server/providers/codex/adapter.js

@@ -5,7 +5,6 @@
  * @module adapters/codex
  */
 
-import { getCodexSessionMessages } from '../../projects.js';
 import { createNormalizedMessage, generateMessageId } from '../types.js';
 
 const PROVIDER = 'codex';
@@ -16,7 +15,7 @@ const PROVIDER = 'codex';
  * @param {string} sessionId
  * @returns {import('../types.js').NormalizedMessage[]}
  */
-function normalizeCodexHistoryEntry(raw, sessionId) {
+export function normalizeCodexHistoryEntry(raw, sessionId) {
   const ts = raw.timestamp || new Date().toISOString();
   const baseId = raw.uuid || generateMessageId('codex');
 
@@ -191,58 +190,3 @@ export function normalizeMessage(raw, sessionId) {
 
   return [];
 }
-
-/**
- * @type {import('../types.js').ProviderAdapter}
- */
-export const codexAdapter = {
-  normalizeMessage,
-  /**
-   * Fetch session history from Codex JSONL files.
-   */
-  async fetchHistory(sessionId, opts = {}) {
-    const { limit = null, offset = 0 } = opts;
-
-    let result;
-    try {
-      result = await getCodexSessionMessages(sessionId, limit, offset);
-    } catch (error) {
-      console.warn(`[CodexAdapter] Failed to load session ${sessionId}:`, error.message);
-      return { messages: [], total: 0, hasMore: false, offset: 0, limit: null };
-    }
-
-    const rawMessages = Array.isArray(result) ? result : (result.messages || []);
-    const total = Array.isArray(result) ? rawMessages.length : (result.total || 0);
-    const hasMore = Array.isArray(result) ? false : Boolean(result.hasMore);
-    const tokenUsage = result.tokenUsage || null;
-
-    const normalized = [];
-    for (const raw of rawMessages) {
-      const entries = normalizeCodexHistoryEntry(raw, sessionId);
-      normalized.push(...entries);
-    }
-
-    // Attach tool results to tool_use messages
-    const toolResultMap = new Map();
-    for (const msg of normalized) {
-      if (msg.kind === 'tool_result' && msg.toolId) {
-        toolResultMap.set(msg.toolId, msg);
-      }
-    }
-    for (const msg of normalized) {
-      if (msg.kind === 'tool_use' && msg.toolId && toolResultMap.has(msg.toolId)) {
-        const tr = toolResultMap.get(msg.toolId);
-        msg.toolResult = { content: tr.content, isError: tr.isError };
-      }
-    }
-
-    return {
-      messages: normalized,
-      total,
-      hasMore,
-      offset,
-      limit,
-      tokenUsage,
-    };
-  },
-};

server/providers/codex/config.js

@@ -0,0 +1 @@
+// TODO: migrate GET /config from server/routes/codex.js

server/providers/codex/index.js

@@ -0,0 +1,8 @@
+/**
+ * Codex provider barrel.
+ * Assembles the ProviderAdapter from adapter + sessions.
+ */
+import { normalizeMessage } from './adapter.js';
+import { fetchHistory } from './sessions.js';
+
+export const codexAdapter = { normalizeMessage, fetchHistory };

server/providers/codex/mcp.js

@@ -0,0 +1 @@
+// TODO: migrate MCP CRUD endpoints from server/routes/codex.js

server/providers/codex/sessions.js

@@ -0,0 +1,63 @@
+/**
+ * Codex session history fetcher.
+ *
+ * Extracted from adapter.js — pure data-access concern.
+ * @module providers/codex/sessions
+ */
+
+import { normalizeCodexHistoryEntry } from './adapter.js';
+import { getCodexSessionMessages } from '../../projects.js';
+
+/**
+ * Fetch session history from Codex JSONL files.
+ * @param {string} sessionId
+ * @param {object} opts
+ * @param {number|null} [opts.limit]
+ * @param {number} [opts.offset]
+ * @returns {Promise<{messages: import('../../providers/types.js').NormalizedMessage[], total: number, hasMore: boolean, offset: number, limit: number|null, tokenUsage: object|null}>}
+ */
+export async function fetchHistory(sessionId, opts = {}) {
+  const { limit = null, offset = 0 } = opts;
+
+  let result;
+  try {
+    result = await getCodexSessionMessages(sessionId, limit, offset);
+  } catch (error) {
+    console.warn(`[CodexAdapter] Failed to load session ${sessionId}:`, error.message);
+    return { messages: [], total: 0, hasMore: false, offset: 0, limit: null };
+  }
+
+  const rawMessages = Array.isArray(result) ? result : (result.messages || []);
+  const total = Array.isArray(result) ? rawMessages.length : (result.total || 0);
+  const hasMore = Array.isArray(result) ? false : Boolean(result.hasMore);
+  const tokenUsage = result.tokenUsage || null;
+
+  const normalized = [];
+  for (const raw of rawMessages) {
+    const entries = normalizeCodexHistoryEntry(raw, sessionId);
+    normalized.push(...entries);
+  }
+
+  // Attach tool results to tool_use messages
+  const toolResultMap = new Map();
+  for (const msg of normalized) {
+    if (msg.kind === 'tool_result' && msg.toolId) {
+      toolResultMap.set(msg.toolId, msg);
+    }
+  }
+  for (const msg of normalized) {
+    if (msg.kind === 'tool_use' && msg.toolId && toolResultMap.has(msg.toolId)) {
+      const tr = toolResultMap.get(msg.toolId);
+      msg.toolResult = { content: tr.content, isError: tr.isError };
+    }
+  }
+
+  return {
+    messages: normalized,
+    total,
+    hasMore,
+    offset,
+    limit,
+    tokenUsage,
+  };
+}

server/providers/cursor/adapter.js

@@ -1,18 +1,18 @@
 /**
  * Cursor provider adapter.
  *
- * Normalizes Cursor CLI session history into NormalizedMessage format.
+ * Normalizes Cursor CLI realtime NDJSON events into NormalizedMessage format.
+ * History loading lives in ./sessions.js.
  * @module adapters/cursor
  */
 
-import path from 'path';
-import os from 'os';
-import crypto from 'crypto';
-import { createNormalizedMessage, generateMessageId } from '../types.js';
+import { createNormalizedMessage } from '../types.js';
 
 const PROVIDER = 'cursor';
 
 /**
+<<<<<<< HEAD
+=======
  * Load raw blobs from Cursor's SQLite store.db, parse the DAG structure,
  * and return sorted message blobs in chronological order.
  * @param {string} sessionId
@@ -129,6 +129,7 @@ async function loadCursorBlobs(sessionId, projectPath) {
 }
 
 /**
+>>>>>>> refactor/split-server-index
  * Normalize a realtime NDJSON event from Cursor CLI into NormalizedMessage(s).
  * History uses normalizeCursorBlobs (SQLite DAG), this handles streaming NDJSON.
  * @param {object|string} raw - A parsed NDJSON event or a raw text line
@@ -146,203 +147,3 @@ export function normalizeMessage(raw, sessionId) {
   }
   return [];
 }
-
-/**
- * @type {import('../types.js').ProviderAdapter}
- */
-export const cursorAdapter = {
-  normalizeMessage,
-  /**
-   * Fetch session history for Cursor from SQLite store.db.
-   */
-  async fetchHistory(sessionId, opts = {}) {
-    const { projectPath = '', limit = null, offset = 0 } = opts;
-
-    try {
-      const blobs = await loadCursorBlobs(sessionId, projectPath);
-      const allNormalized = cursorAdapter.normalizeCursorBlobs(blobs, sessionId);
-
-      // Apply pagination
-      if (limit !== null && limit > 0) {
-        const start = offset;
-        const page = allNormalized.slice(start, start + limit);
-        return {
-          messages: page,
-          total: allNormalized.length,
-          hasMore: start + limit < allNormalized.length,
-          offset,
-          limit,
-        };
-      }
-
-      return {
-        messages: allNormalized,
-        total: allNormalized.length,
-        hasMore: false,
-        offset: 0,
-        limit: null,
-      };
-    } catch (error) {
-      // DB doesn't exist or is unreadable — return empty
-      console.warn(`[CursorAdapter] Failed to load session ${sessionId}:`, error.message);
-      return { messages: [], total: 0, hasMore: false, offset: 0, limit: null };
-    }
-  },
-
-  /**
-   * Normalize raw Cursor blob messages into NormalizedMessage[].
-   * @param {any[]} blobs - Raw cursor blobs from store.db ({id, sequence, rowid, content})
-   * @param {string} sessionId
-   * @returns {import('../types.js').NormalizedMessage[]}
-   */
-  normalizeCursorBlobs(blobs, sessionId) {
-    const messages = [];
-    const toolUseMap = new Map();
-
-    // Use a fixed base timestamp so messages have stable, monotonically-increasing
-    // timestamps based on their sequence number rather than wall-clock time.
-    const baseTime = Date.now();
-
-    for (let i = 0; i < blobs.length; i++) {
-      const blob = blobs[i];
-      const content = blob.content;
-      const ts = new Date(baseTime + (blob.sequence ?? i) * 100).toISOString();
-      const baseId = blob.id || generateMessageId('cursor');
-
-      try {
-        if (!content?.role || !content?.content) {
-          // Try nested message format
-          if (content?.message?.role && content?.message?.content) {
-            if (content.message.role === 'system') continue;
-            const role = content.message.role === 'user' ? 'user' : 'assistant';
-            let text = '';
-            if (Array.isArray(content.message.content)) {
-              text = content.message.content
-                .map(p => typeof p === 'string' ? p : p?.text || '')
-                .filter(Boolean)
-                .join('\n');
-            } else if (typeof content.message.content === 'string') {
-              text = content.message.content;
-            }
-            if (text?.trim()) {
-              messages.push(createNormalizedMessage({
-                id: baseId,
-                sessionId,
-                timestamp: ts,
-                provider: PROVIDER,
-                kind: 'text',
-                role,
-                content: text,
-                sequence: blob.sequence,
-                rowid: blob.rowid,
-              }));
-            }
-          }
-          continue;
-        }
-
-        if (content.role === 'system') continue;
-
-        // Tool results
-        if (content.role === 'tool') {
-          const toolItems = Array.isArray(content.content) ? content.content : [];
-          for (const item of toolItems) {
-            if (item?.type !== 'tool-result') continue;
-            const toolCallId = item.toolCallId || content.id;
-            messages.push(createNormalizedMessage({
-              id: `${baseId}_tr`,
-              sessionId,
-              timestamp: ts,
-              provider: PROVIDER,
-              kind: 'tool_result',
-              toolId: toolCallId,
-              content: item.result || '',
-              isError: false,
-            }));
-          }
-          continue;
-        }
-
-        const role = content.role === 'user' ? 'user' : 'assistant';
-
-        if (Array.isArray(content.content)) {
-          for (let partIdx = 0; partIdx < content.content.length; partIdx++) {
-            const part = content.content[partIdx];
-
-            if (part?.type === 'text' && part?.text) {
-              messages.push(createNormalizedMessage({
-                id: `${baseId}_${partIdx}`,
-                sessionId,
-                timestamp: ts,
-                provider: PROVIDER,
-                kind: 'text',
-                role,
-                content: part.text,
-                sequence: blob.sequence,
-                rowid: blob.rowid,
-              }));
-            } else if (part?.type === 'reasoning' && part?.text) {
-              messages.push(createNormalizedMessage({
-                id: `${baseId}_${partIdx}`,
-                sessionId,
-                timestamp: ts,
-                provider: PROVIDER,
-                kind: 'thinking',
-                content: part.text,
-              }));
-            } else if (part?.type === 'tool-call' || part?.type === 'tool_use') {
-              const toolName = (part.toolName || part.name || 'Unknown Tool') === 'ApplyPatch'
-                ? 'Edit' : (part.toolName || part.name || 'Unknown Tool');
-              const toolId = part.toolCallId || part.id || `tool_${i}_${partIdx}`;
-              messages.push(createNormalizedMessage({
-                id: `${baseId}_${partIdx}`,
-                sessionId,
-                timestamp: ts,
-                provider: PROVIDER,
-                kind: 'tool_use',
-                toolName,
-                toolInput: part.args || part.input,
-                toolId,
-              }));
-              toolUseMap.set(toolId, messages[messages.length - 1]);
-            }
-          }
-        } else if (typeof content.content === 'string' && content.content.trim()) {
-          messages.push(createNormalizedMessage({
-            id: baseId,
-            sessionId,
-            timestamp: ts,
-            provider: PROVIDER,
-            kind: 'text',
-            role,
-            content: content.content,
-            sequence: blob.sequence,
-            rowid: blob.rowid,
-          }));
-        }
-      } catch (error) {
-        console.warn('Error normalizing cursor blob:', error);
-      }
-    }
-
-    // Attach tool results to tool_use messages
-    for (const msg of messages) {
-      if (msg.kind === 'tool_result' && msg.toolId && toolUseMap.has(msg.toolId)) {
-        const toolUse = toolUseMap.get(msg.toolId);
-        toolUse.toolResult = {
-          content: msg.content,
-          isError: msg.isError,
-        };
-      }
-    }
-
-    // Sort by sequence/rowid
-    messages.sort((a, b) => {
-      if (a.sequence !== undefined && b.sequence !== undefined) return a.sequence - b.sequence;
-      if (a.rowid !== undefined && b.rowid !== undefined) return a.rowid - b.rowid;
-      return new Date(a.timestamp).getTime() - new Date(b.timestamp).getTime();
-    });
-
-    return messages;
-  },
-};

server/providers/cursor/config.js

@@ -0,0 +1 @@
+// TODO: migrate GET/POST /config from server/routes/cursor.js

server/providers/cursor/index.js

@@ -0,0 +1,8 @@
+/**
+ * Cursor provider barrel.
+ * Assembles the ProviderAdapter from adapter + sessions.
+ */
+import { normalizeMessage } from './adapter.js';
+import { fetchHistory, normalizeCursorBlobs } from './sessions.js';
+
+export const cursorAdapter = { normalizeMessage, fetchHistory, normalizeCursorBlobs };

server/providers/cursor/mcp.js

@@ -0,0 +1 @@
+// TODO: migrate MCP CRUD endpoints from server/routes/cursor.js

server/providers/cursor/sessions.js

@@ -0,0 +1,330 @@
+/**
+ * Cursor provider session history.
+ *
+ * Reads Cursor's SQLite store.db, walks the DAG, and returns
+ * NormalizedMessage[] for a given session.
+ * @module providers/cursor/sessions
+ */
+
+import path from 'path';
+import os from 'os';
+import crypto from 'crypto';
+import { createNormalizedMessage, generateMessageId } from '../types.js';
+
+const PROVIDER = 'cursor';
+
+/**
+ * Load raw blobs from Cursor's SQLite store.db, parse the DAG structure,
+ * and return sorted message blobs in chronological order.
+ * @param {string} sessionId
+ * @param {string} projectPath - Absolute project path (used to compute cwdId hash)
+ * @returns {Promise<Array<{id: string, sequence: number, rowid: number, content: object}>>}
+ */
+async function loadCursorBlobs(sessionId, projectPath) {
+  // Lazy-import better-sqlite3 so the module doesn't fail if it's unavailable
+  const { default: Database } = await import('better-sqlite3');
+
+  const cwdId = crypto.createHash('md5').update(projectPath || process.cwd()).digest('hex');
+  const storeDbPath = path.join(os.homedir(), '.cursor', 'chats', cwdId, sessionId, 'store.db');
+
+  const db = new Database(storeDbPath, { readonly: true, fileMustExist: true });
+
+  try {
+    const allBlobs = db.prepare('SELECT rowid, id, data FROM blobs').all();
+
+    const blobMap = new Map();
+    const parentRefs = new Map();
+    const childRefs = new Map();
+    const jsonBlobs = [];
+
+    for (const blob of allBlobs) {
+      blobMap.set(blob.id, blob);
+
+      if (blob.data && blob.data[0] === 0x7B) {
+        try {
+          const parsed = JSON.parse(blob.data.toString('utf8'));
+          jsonBlobs.push({ ...blob, parsed });
+        } catch {
+          // skip unparseable blobs
+        }
+      } else if (blob.data) {
+        const parents = [];
+        let i = 0;
+        while (i < blob.data.length - 33) {
+          if (blob.data[i] === 0x0A && blob.data[i + 1] === 0x20) {
+            const parentHash = blob.data.slice(i + 2, i + 34).toString('hex');
+            if (blobMap.has(parentHash)) {
+              parents.push(parentHash);
+            }
+            i += 34;
+          } else {
+            i++;
+          }
+        }
+        if (parents.length > 0) {
+          parentRefs.set(blob.id, parents);
+          for (const parentId of parents) {
+            if (!childRefs.has(parentId)) childRefs.set(parentId, []);
+            childRefs.get(parentId).push(blob.id);
+          }
+        }
+      }
+    }
+
+    // Topological sort (DFS)
+    const visited = new Set();
+    const sorted = [];
+    function visit(nodeId) {
+      if (visited.has(nodeId)) return;
+      visited.add(nodeId);
+      for (const pid of (parentRefs.get(nodeId) || [])) visit(pid);
+      const b = blobMap.get(nodeId);
+      if (b) sorted.push(b);
+    }
+    for (const blob of allBlobs) {
+      if (!parentRefs.has(blob.id)) visit(blob.id);
+    }
+    for (const blob of allBlobs) visit(blob.id);
+
+    // Order JSON blobs by DAG appearance
+    const messageOrder = new Map();
+    let orderIndex = 0;
+    for (const blob of sorted) {
+      if (blob.data && blob.data[0] !== 0x7B) {
+        for (const jb of jsonBlobs) {
+          try {
+            const idBytes = Buffer.from(jb.id, 'hex');
+            if (blob.data.includes(idBytes) && !messageOrder.has(jb.id)) {
+              messageOrder.set(jb.id, orderIndex++);
+            }
+          } catch { /* skip */ }
+        }
+      }
+    }
+
+    const sortedJsonBlobs = jsonBlobs.sort((a, b) => {
+      const oa = messageOrder.get(a.id) ?? Number.MAX_SAFE_INTEGER;
+      const ob = messageOrder.get(b.id) ?? Number.MAX_SAFE_INTEGER;
+      return oa !== ob ? oa - ob : a.rowid - b.rowid;
+    });
+
+    const messages = [];
+    for (let idx = 0; idx < sortedJsonBlobs.length; idx++) {
+      const blob = sortedJsonBlobs[idx];
+      const parsed = blob.parsed;
+      if (!parsed) continue;
+      const role = parsed?.role || parsed?.message?.role;
+      if (role === 'system') continue;
+      messages.push({
+        id: blob.id,
+        sequence: idx + 1,
+        rowid: blob.rowid,
+        content: parsed,
+      });
+    }
+
+    return messages;
+  } finally {
+    db.close();
+  }
+}
+
+/**
+ * Normalize raw Cursor blob messages into NormalizedMessage[].
+ * @param {any[]} blobs - Raw cursor blobs from store.db ({id, sequence, rowid, content})
+ * @param {string} sessionId
+ * @returns {import('../types.js').NormalizedMessage[]}
+ */
+export function normalizeCursorBlobs(blobs, sessionId) {
+  const messages = [];
+  const toolUseMap = new Map();
+
+  // Use a fixed base timestamp so messages have stable, monotonically-increasing
+  // timestamps based on their sequence number rather than wall-clock time.
+  const baseTime = Date.now();
+
+  for (let i = 0; i < blobs.length; i++) {
+    const blob = blobs[i];
+    const content = blob.content;
+    const ts = new Date(baseTime + (blob.sequence ?? i) * 100).toISOString();
+    const baseId = blob.id || generateMessageId('cursor');
+
+    try {
+      if (!content?.role || !content?.content) {
+        // Try nested message format
+        if (content?.message?.role && content?.message?.content) {
+          if (content.message.role === 'system') continue;
+          const role = content.message.role === 'user' ? 'user' : 'assistant';
+          let text = '';
+          if (Array.isArray(content.message.content)) {
+            text = content.message.content
+              .map(p => typeof p === 'string' ? p : p?.text || '')
+              .filter(Boolean)
+              .join('\n');
+          } else if (typeof content.message.content === 'string') {
+            text = content.message.content;
+          }
+          if (text?.trim()) {
+            messages.push(createNormalizedMessage({
+              id: baseId,
+              sessionId,
+              timestamp: ts,
+              provider: PROVIDER,
+              kind: 'text',
+              role,
+              content: text,
+              sequence: blob.sequence,
+              rowid: blob.rowid,
+            }));
+          }
+        }
+        continue;
+      }
+
+      if (content.role === 'system') continue;
+
+      // Tool results
+      if (content.role === 'tool') {
+        const toolItems = Array.isArray(content.content) ? content.content : [];
+        for (const item of toolItems) {
+          if (item?.type !== 'tool-result') continue;
+          const toolCallId = item.toolCallId || content.id;
+          messages.push(createNormalizedMessage({
+            id: `${baseId}_tr`,
+            sessionId,
+            timestamp: ts,
+            provider: PROVIDER,
+            kind: 'tool_result',
+            toolId: toolCallId,
+            content: item.result || '',
+            isError: false,
+          }));
+        }
+        continue;
+      }
+
+      const role = content.role === 'user' ? 'user' : 'assistant';
+
+      if (Array.isArray(content.content)) {
+        for (let partIdx = 0; partIdx < content.content.length; partIdx++) {
+          const part = content.content[partIdx];
+
+          if (part?.type === 'text' && part?.text) {
+            messages.push(createNormalizedMessage({
+              id: `${baseId}_${partIdx}`,
+              sessionId,
+              timestamp: ts,
+              provider: PROVIDER,
+              kind: 'text',
+              role,
+              content: part.text,
+              sequence: blob.sequence,
+              rowid: blob.rowid,
+            }));
+          } else if (part?.type === 'reasoning' && part?.text) {
+            messages.push(createNormalizedMessage({
+              id: `${baseId}_${partIdx}`,
+              sessionId,
+              timestamp: ts,
+              provider: PROVIDER,
+              kind: 'thinking',
+              content: part.text,
+            }));
+          } else if (part?.type === 'tool-call' || part?.type === 'tool_use') {
+            const toolName = (part.toolName || part.name || 'Unknown Tool') === 'ApplyPatch'
+              ? 'Edit' : (part.toolName || part.name || 'Unknown Tool');
+            const toolId = part.toolCallId || part.id || `tool_${i}_${partIdx}`;
+            messages.push(createNormalizedMessage({
+              id: `${baseId}_${partIdx}`,
+              sessionId,
+              timestamp: ts,
+              provider: PROVIDER,
+              kind: 'tool_use',
+              toolName,
+              toolInput: part.args || part.input,
+              toolId,
+            }));
+            toolUseMap.set(toolId, messages[messages.length - 1]);
+          }
+        }
+      } else if (typeof content.content === 'string' && content.content.trim()) {
+        messages.push(createNormalizedMessage({
+          id: baseId,
+          sessionId,
+          timestamp: ts,
+          provider: PROVIDER,
+          kind: 'text',
+          role,
+          content: content.content,
+          sequence: blob.sequence,
+          rowid: blob.rowid,
+        }));
+      }
+    } catch (error) {
+      console.warn('Error normalizing cursor blob:', error);
+    }
+  }
+
+  // Attach tool results to tool_use messages
+  for (const msg of messages) {
+    if (msg.kind === 'tool_result' && msg.toolId && toolUseMap.has(msg.toolId)) {
+      const toolUse = toolUseMap.get(msg.toolId);
+      toolUse.toolResult = {
+        content: msg.content,
+        isError: msg.isError,
+      };
+    }
+  }
+
+  // Sort by sequence/rowid
+  messages.sort((a, b) => {
+    if (a.sequence !== undefined && b.sequence !== undefined) return a.sequence - b.sequence;
+    if (a.rowid !== undefined && b.rowid !== undefined) return a.rowid - b.rowid;
+    return new Date(a.timestamp).getTime() - new Date(b.timestamp).getTime();
+  });
+
+  return messages;
+}
+
+/**
+ * Fetch session history for Cursor from SQLite store.db.
+ * @param {string} sessionId
+ * @param {object} opts
+ * @param {string} [opts.projectPath='']
+ * @param {number|null} [opts.limit=null]
+ * @param {number} [opts.offset=0]
+ * @returns {Promise<{messages: import('../types.js').NormalizedMessage[], total: number, hasMore: boolean, offset: number, limit: number|null}>}
+ */
+export async function fetchHistory(sessionId, opts = {}) {
+  const { projectPath = '', limit = null, offset = 0 } = opts;
+
+  try {
+    const blobs = await loadCursorBlobs(sessionId, projectPath);
+    const allNormalized = normalizeCursorBlobs(blobs, sessionId);
+
+    // Apply pagination
+    if (limit !== null && limit > 0) {
+      const start = offset;
+      const page = allNormalized.slice(start, start + limit);
+      return {
+        messages: page,
+        total: allNormalized.length,
+        hasMore: start + limit < allNormalized.length,
+        offset,
+        limit,
+      };
+    }
+
+    return {
+      messages: allNormalized,
+      total: allNormalized.length,
+      hasMore: false,
+      offset: 0,
+      limit: null,
+    };
+  } catch (error) {
+    // DB doesn't exist or is unreadable — return empty
+    console.warn(`[CursorAdapter] Failed to load session ${sessionId}:`, error.message);
+    return { messages: [], total: 0, hasMore: false, offset: 0, limit: null };
+  }
+}

server/providers/gemini/adapter.js

@@ -5,8 +5,6 @@
  * @module adapters/gemini
  */
 
-import sessionManager from '../../sessionManager.js';
-import { getGeminiCliSessionMessages } from '../../projects.js';
 import { createNormalizedMessage, generateMessageId } from '../types.js';
 
 const PROVIDER = 'gemini';
@@ -72,115 +70,3 @@ export function normalizeMessage(raw, sessionId) {
 
   return [];
 }
-
-/**
- * @type {import('../types.js').ProviderAdapter}
- */
-export const geminiAdapter = {
-  normalizeMessage,
-  /**
-   * Fetch session history for Gemini.
-   * First tries in-memory session manager, then falls back to CLI sessions on disk.
-   */
-  async fetchHistory(sessionId, opts = {}) {
-    let rawMessages;
-    try {
-      rawMessages = sessionManager.getSessionMessages(sessionId);
-
-      // Fallback to Gemini CLI sessions on disk
-      if (rawMessages.length === 0) {
-        rawMessages = await getGeminiCliSessionMessages(sessionId);
-      }
-    } catch (error) {
-      console.warn(`[GeminiAdapter] Failed to load session ${sessionId}:`, error.message);
-      return { messages: [], total: 0, hasMore: false, offset: 0, limit: null };
-    }
-
-    const normalized = [];
-    for (let i = 0; i < rawMessages.length; i++) {
-      const raw = rawMessages[i];
-      const ts = raw.timestamp || new Date().toISOString();
-      const baseId = raw.uuid || generateMessageId('gemini');
-
-      // sessionManager format: { type: 'message', message: { role, content }, timestamp }
-      // CLI format: { role: 'user'|'gemini'|'assistant', content: string|array }
-      const role = raw.message?.role || raw.role;
-      const content = raw.message?.content || raw.content;
-
-      if (!role || !content) continue;
-
-      const normalizedRole = (role === 'user') ? 'user' : 'assistant';
-
-      if (Array.isArray(content)) {
-        for (let partIdx = 0; partIdx < content.length; partIdx++) {
-          const part = content[partIdx];
-          if (part.type === 'text' && part.text) {
-            normalized.push(createNormalizedMessage({
-              id: `${baseId}_${partIdx}`,
-              sessionId,
-              timestamp: ts,
-              provider: PROVIDER,
-              kind: 'text',
-              role: normalizedRole,
-              content: part.text,
-            }));
-          } else if (part.type === 'tool_use') {
-            normalized.push(createNormalizedMessage({
-              id: `${baseId}_${partIdx}`,
-              sessionId,
-              timestamp: ts,
-              provider: PROVIDER,
-              kind: 'tool_use',
-              toolName: part.name,
-              toolInput: part.input,
-              toolId: part.id || generateMessageId('gemini_tool'),
-            }));
-          } else if (part.type === 'tool_result') {
-            normalized.push(createNormalizedMessage({
-              id: `${baseId}_${partIdx}`,
-              sessionId,
-              timestamp: ts,
-              provider: PROVIDER,
-              kind: 'tool_result',
-              toolId: part.tool_use_id || '',
-              content: part.content === undefined ? '' : String(part.content),
-              isError: Boolean(part.is_error),
-            }));
-          }
-        }
-      } else if (typeof content === 'string' && content.trim()) {
-        normalized.push(createNormalizedMessage({
-          id: baseId,
-          sessionId,
-          timestamp: ts,
-          provider: PROVIDER,
-          kind: 'text',
-          role: normalizedRole,
-          content,
-        }));
-      }
-    }
-
-    // Attach tool results to tool_use messages
-    const toolResultMap = new Map();
-    for (const msg of normalized) {
-      if (msg.kind === 'tool_result' && msg.toolId) {
-        toolResultMap.set(msg.toolId, msg);
-      }
-    }
-    for (const msg of normalized) {
-      if (msg.kind === 'tool_use' && msg.toolId && toolResultMap.has(msg.toolId)) {
-        const tr = toolResultMap.get(msg.toolId);
-        msg.toolResult = { content: tr.content, isError: tr.isError };
-      }
-    }
-
-    return {
-      messages: normalized,
-      total: normalized.length,
-      hasMore: false,
-      offset: 0,
-      limit: null,
-    };
-  },
-};

server/providers/gemini/index.js

@@ -0,0 +1,8 @@
+/**
+ * Gemini provider barrel.
+ * Assembles the ProviderAdapter from adapter + sessions.
+ */
+import { normalizeMessage } from './adapter.js';
+import { fetchHistory } from './sessions.js';
+
+export const geminiAdapter = { normalizeMessage, fetchHistory };

server/providers/gemini/sessions.js

@@ -0,0 +1,121 @@
+/**
+ * Gemini session history fetcher.
+ *
+ * Extracted from adapter.js — pure data-access concern.
+ * @module providers/gemini/sessions
+ */
+
+import sessionManager from '../../sessionManager.js';
+import { getGeminiCliSessionMessages } from '../../projects.js';
+import { createNormalizedMessage, generateMessageId } from '../types.js';
+
+const PROVIDER = 'gemini';
+
+/**
+ * Fetch session history for Gemini.
+ * First tries in-memory session manager, then falls back to CLI sessions on disk.
+ * @param {string} sessionId
+ * @param {object} opts
+ * @returns {Promise<{messages: import('../types.js').NormalizedMessage[], total: number, hasMore: boolean, offset: number, limit: number|null}>}
+ */
+export async function fetchHistory(sessionId, opts = {}) {
+  let rawMessages;
+  try {
+    rawMessages = sessionManager.getSessionMessages(sessionId);
+
+    // Fallback to Gemini CLI sessions on disk
+    if (rawMessages.length === 0) {
+      rawMessages = await getGeminiCliSessionMessages(sessionId);
+    }
+  } catch (error) {
+    console.warn(`[GeminiAdapter] Failed to load session ${sessionId}:`, error.message);
+    return { messages: [], total: 0, hasMore: false, offset: 0, limit: null };
+  }
+
+  const normalized = [];
+  for (let i = 0; i < rawMessages.length; i++) {
+    const raw = rawMessages[i];
+    const ts = raw.timestamp || new Date().toISOString();
+    const baseId = raw.uuid || generateMessageId('gemini');
+
+    // sessionManager format: { type: 'message', message: { role, content }, timestamp }
+    // CLI format: { role: 'user'|'gemini'|'assistant', content: string|array }
+    const role = raw.message?.role || raw.role;
+    const content = raw.message?.content || raw.content;
+
+    if (!role || !content) continue;
+
+    const normalizedRole = (role === 'user') ? 'user' : 'assistant';
+
+    if (Array.isArray(content)) {
+      for (let partIdx = 0; partIdx < content.length; partIdx++) {
+        const part = content[partIdx];
+        if (part.type === 'text' && part.text) {
+          normalized.push(createNormalizedMessage({
+            id: `${baseId}_${partIdx}`,
+            sessionId,
+            timestamp: ts,
+            provider: PROVIDER,
+            kind: 'text',
+            role: normalizedRole,
+            content: part.text,
+          }));
+        } else if (part.type === 'tool_use') {
+          normalized.push(createNormalizedMessage({
+            id: `${baseId}_${partIdx}`,
+            sessionId,
+            timestamp: ts,
+            provider: PROVIDER,
+            kind: 'tool_use',
+            toolName: part.name,
+            toolInput: part.input,
+            toolId: part.id || generateMessageId('gemini_tool'),
+          }));
+        } else if (part.type === 'tool_result') {
+          normalized.push(createNormalizedMessage({
+            id: `${baseId}_${partIdx}`,
+            sessionId,
+            timestamp: ts,
+            provider: PROVIDER,
+            kind: 'tool_result',
+            toolId: part.tool_use_id || '',
+            content: part.content === undefined ? '' : String(part.content),
+            isError: Boolean(part.is_error),
+          }));
+        }
+      }
+    } else if (typeof content === 'string' && content.trim()) {
+      normalized.push(createNormalizedMessage({
+        id: baseId,
+        sessionId,
+        timestamp: ts,
+        provider: PROVIDER,
+        kind: 'text',
+        role: normalizedRole,
+        content,
+      }));
+    }
+  }
+
+  // Attach tool results to tool_use messages
+  const toolResultMap = new Map();
+  for (const msg of normalized) {
+    if (msg.kind === 'tool_result' && msg.toolId) {
+      toolResultMap.set(msg.toolId, msg);
+    }
+  }
+  for (const msg of normalized) {
+    if (msg.kind === 'tool_use' && msg.toolId && toolResultMap.has(msg.toolId)) {
+      const tr = toolResultMap.get(msg.toolId);
+      msg.toolResult = { content: tr.content, isError: tr.isError };
+    }
+  }
+
+  return {
+    messages: normalized,
+    total: normalized.length,
+    hasMore: false,
+    offset: 0,
+    limit: null,
+  };
+}

server/providers/registry.js

@@ -8,10 +8,10 @@
  * @module providers/registry
  */
 
-import { claudeAdapter } from './claude/adapter.js';
-import { cursorAdapter } from './cursor/adapter.js';
-import { codexAdapter } from './codex/adapter.js';
-import { geminiAdapter } from './gemini/adapter.js';
+import { claudeAdapter } from './claude/index.js';
+import { cursorAdapter } from './cursor/index.js';
+import { codexAdapter } from './codex/index.js';
+import { geminiAdapter } from './gemini/index.js';
 
 import * as claudeStatus from './claude/status.js';
 import * as cursorStatus from './cursor/status.js';