fix: always load version from package.json at runtime

codex-cli/build.mjs

@@ -72,6 +72,9 @@ if (isDevBuild) {
 esbuild
   .build({
     entryPoints: ["src/cli.tsx"],
+    // Do not bundle the contents of package.json at build time: always read it
+    // at runtime.
+    external: ["../package.json"],
     bundle: true,
     format: "esm",
     platform: "node",

codex-cli/src/app.tsx

@@ -5,7 +5,7 @@ import type { ResponseItem } from "openai/resources/responses/responses";
 import TerminalChat from "./components/chat/terminal-chat";
 import TerminalChatPastRollout from "./components/chat/terminal-chat-past-rollout";
 import { checkInGit } from "./utils/check-in-git";
-import { CLI_VERSION, type TerminalChatSession } from "./utils/session.js";
+import { CLI_VERSION, type TerminalChatSession } from "./session.js";
 import { onExit } from "./utils/terminal";
 import { ConfirmInput } from "@inkjs/ui";
 import { Box, Text, useApp, useStdin } from "ink";

codex-cli/src/components/chat/terminal-chat-input.tsx

@@ -10,12 +10,12 @@ import type {
 import MultilineTextEditor from "./multiline-editor";
 import { TerminalChatCommandReview } from "./terminal-chat-command-review.js";
 import TextCompletions from "./terminal-chat-completions.js";
+import { setSessionId } from "../../session.js";
 import { loadConfig } from "../../utils/config.js";
 import { getFileSystemSuggestions } from "../../utils/file-system-suggestions.js";
 import { expandFileTags } from "../../utils/file-tag-utils";
 import { createInputItem } from "../../utils/input-utils.js";
 import { log } from "../../utils/logger/log.js";
-import { setSessionId } from "../../utils/session.js";
 import { SLASH_COMMANDS, type SlashCommand } from "../../utils/slash-commands";
 import {
   loadCommandHistory,
@@ -584,7 +584,7 @@ export default function TerminalChatInput({
 
         try {
           const os = await import("node:os");
-          const { CLI_VERSION } = await import("../../utils/session.js");
+          const { CLI_VERSION } = await import("../../session.js");
           const { buildBugReportUrl } = await import(
             "../../utils/bug-report.js"
           );

codex-cli/src/components/chat/terminal-chat-past-rollout.tsx

@@ -1,4 +1,4 @@
-import type { TerminalChatSession } from "../../utils/session.js";
+import type { TerminalChatSession } from "../../session.js";
 import type { ResponseItem } from "openai/resources/responses/responses";
 
 import TerminalChatResponseItem from "./terminal-chat-response-item";

codex-cli/src/components/chat/terminal-chat.tsx

@@ -10,6 +10,7 @@ import TerminalMessageHistory from "./terminal-message-history.js";
 import { formatCommandForDisplay } from "../../format-command.js";
 import { useConfirmation } from "../../hooks/use-confirmation.js";
 import { useTerminalSize } from "../../hooks/use-terminal-size.js";
+import { CLI_VERSION } from "../../session.js";
 import { AgentLoop } from "../../utils/agent/agent-loop.js";
 import { ReviewDecision } from "../../utils/agent/review.js";
 import { generateCompactSummary } from "../../utils/compact-summary.js";
@@ -24,7 +25,6 @@ import {
   uniqueById,
 } from "../../utils/model-utils.js";
 import { createOpenAIClient } from "../../utils/openai-client.js";
-import { CLI_VERSION } from "../../utils/session.js";
 import { shortCwd } from "../../utils/short-path.js";
 import { saveRollout } from "../../utils/storage/save-rollout.js";
 import ApprovalModeOverlay from "../approval-mode-overlay.js";

codex-cli/src/session.ts

@@ -0,0 +1,60 @@
+// Note that "../package.json" is marked external in build.mjs. This ensures
+// that the contents of package.json will always be read at runtime, which is
+// preferable so we do not have to make a temporary change to package.json in
+// the source tree to update the version number in the code.
+import pkg from "../package.json" with { type: "json" };
+
+// Read the version directly from package.json.
+export const CLI_VERSION: string = (pkg as { version: string }).version;
+export const ORIGIN = "codex_cli_ts";
+
+export type TerminalChatSession = {
+  /** Globally unique session identifier */
+  id: string;
+  /** The OpenAI username associated with this session */
+  user: string;
+  /** Version identifier of the Codex CLI that produced the session */
+  version: string;
+  /** The model used for the conversation */
+  model: string;
+  /** ISO timestamp noting when the session was persisted */
+  timestamp: string;
+  /** Optional custom instructions that were active for the run */
+  instructions: string;
+};
+
+let sessionId = "";
+
+/**
+ * Update the globally tracked session identifier.
+ * Passing an empty string clears the current session.
+ */
+export function setSessionId(id: string): void {
+  sessionId = id;
+}
+
+/**
+ * Retrieve the currently active session identifier, or an empty string when
+ * no session is active.
+ */
+export function getSessionId(): string {
+  return sessionId;
+}
+
+let currentModel = "";
+
+/**
+ * Record the model that is currently being used for the conversation.
+ * Setting an empty string clears the record so the next agent run can update it.
+ */
+export function setCurrentModel(model: string): void {
+  currentModel = model;
+}
+
+/**
+ * Return the model that was last supplied to {@link setCurrentModel}.
+ * If no model has been recorded yet, an empty string is returned.
+ */
+export function getCurrentModel(): string {
+  return currentModel;
+}

codex-cli/src/utils/agent/agent-loop.ts

@@ -11,6 +11,13 @@ import type {
 } from "openai/resources/responses/responses.mjs";
 import type { Reasoning } from "openai/resources.mjs";
 
+import {
+  ORIGIN,
+  CLI_VERSION,
+  getSessionId,
+  setCurrentModel,
+  setSessionId,
+} from "../../session.js";
 import {
   OPENAI_TIMEOUT_MS,
   OPENAI_ORGANIZATION,
@@ -22,13 +29,6 @@ import {
 import { log } from "../logger/log.js";
 import { parseToolCallArguments } from "../parsers.js";
 import { responsesCreateViaChatCompletions } from "../responses.js";
-import {
-  ORIGIN,
-  CLI_VERSION,
-  getSessionId,
-  setCurrentModel,
-  setSessionId,
-} from "../session.js";
 import { handleExecCommand } from "./handle-exec-command.js";
 import { HttpsProxyAgent } from "https-proxy-agent";
 import { randomUUID } from "node:crypto";

codex-cli/src/utils/check-updates.ts

@@ -1,7 +1,7 @@
 import type { AgentName } from "package-manager-detector";
 
 import { detectInstallerByPath } from "./package-manager-detector";
-import { CLI_VERSION } from "./session";
+import { CLI_VERSION } from "../session";
 import boxen from "boxen";
 import chalk from "chalk";
 import { getLatestVersion } from "fast-npm-meta";

codex-cli/tests/check-updates.test.ts

@@ -9,7 +9,7 @@ import {
   renderUpdateCommand,
 } from "../src/utils/check-updates";
 import { detectInstallerByPath } from "../src/utils/package-manager-detector";
-import { CLI_VERSION } from "../src/utils/session";
+import { CLI_VERSION } from "../src/session";
 
 // In-memory FS mock
 let memfs: Record<string, string> = {};