chore: version packages

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

CHANGELOG.md

@@ -1,5 +1,19 @@
 # aicodeman
 
+## 1.12.2
+
+### Patch Changes
+
+- Codex input fixes: all four bugs reported by @DodgyBadger traced to one root cause (the zero-lag local-echo overlay buffering keystrokes until Enter, which starves codex's per-keystroke composer) and fixed in terminal-ui.js:
+  - Slash command picker never appeared in codex sessions (#222): the "/" sat in the overlay until Enter, so codex never saw it. Codex-mode sessions now use plain PTY echo (same branch as shell), so the picker pops and live-filters as you type.
+  - Arrow keys dead while typing, backspace dead after Ctrl+Backspace (#218): arrows were forwarded to a still-empty composer while typed text sat pending, and after a control-char flush the overlay swallowed every backspace. Codex bypasses the overlay entirely now; the shared overlay branch (claude/gemini/opencode) additionally flushes pending text on composer nav keys, then hands the session to pass-through until Enter/Ctrl+C, and forwards backspace instead of swallowing it when the overlay has no state.
+  - Pasting displaced the typed prompt (#219): bracketed pastes (xterm terminal.paste with DECSET 2004 active) were forwarded without flushing pending typed text, so the paste landed first. The shared branch now flushes typed text first and delays the paste sequence by 80ms, because codex's paste-burst handling drops keystrokes that arrive in the same PTY read as a bracketed paste (verified against codex 0.147.0 at the byte level).
+  - Long prompts overflowed the bottom of the screen (#220): long typed prompts existed only in the overlay DOM so codex never grew its composer; with plain PTY echo the composer grows and rewraps normally.
+
+  Verified end to end against a real codex 0.147.0 TUI driven by a headless browser: the pre-fix build reproduces all four bugs, the fixed build passes 17/17 assertions. New CI test file test/local-echo-codex-gating.test.ts (41 tests) pins the nav-key classifier, per-mode overlay gating, the flush helper, and pass-through routing. Known upstream limitation: Ctrl+Backspace deletes one character, not a word (xterm.js sends 0x08; word-delete needs kitty CSI-u encoding that xterm.js 6.0.0 cannot emit).
+
+  Mobile keyboard viewport settling fixes by @Lint111 (#229): coalesce keyboard viewport settling so rapid visualViewport resize events during keyboard show/hide no longer thrash the terminal fit, and only arm the settle logic on a real keyboard transition instead of every viewport resize.
+
 ## 1.12.1
 
 ### Patch Changes

CLAUDE.md

@@ -74,7 +74,7 @@ When user says "COM":
 
 CI runs `npm run check:lockfile` on every push/PR, so lockfile drift fails the build even if the `version-packages` script is bypassed.
 
-**Version**: 1.12.1 (must match `package.json`)
+**Version**: 1.12.2 (must match `package.json`)
 
 ## Project Overview
 
@@ -194,7 +194,7 @@ Codeman is a Claude Code session manager with web interface and autonomous Ralph
 
 **Docker cases**: a case can point at a **container**, with any of the five CLI backends running inside it. Like remote-SSH this is a **LOCATION OVERLAY on cases, never a sixth `SessionMode`**. Exactly one long-lived container **per case**, shared by all its sessions, so killing a session kills only that session's in-container tmux and **never** `docker stop` while siblings remain. The workspace is a real host dir bind-mounted at the **same absolute path**, which is what keeps file-routes/watchers on real host bytes and makes the in-container transcript projHash match the host. Credentials are **seeded** (RO mount, copied into the container once) rather than shared RW, so in-container CLIs never write refreshed tokens back to the host, and bind mounts are excluded from `docker commit` so exports stay secret-free. **NEVER a create-time `-e` for secrets, NEVER `--privileged`, NEVER the docker socket.** Config drift is detected via a label hash and a drifted launch is REFUSED rather than silently launched with stale config. ⚠️ On the loopback-only prod bind a container cannot reach 127.0.0.1, so in-container hooks need `CODEMAN_DOCKER_BRIDGE_HOOKS=1`; otherwise idle detection falls back to output-based. → [architecture-invariants#docker-cases](docs/architecture-invariants.md#docker-cases), `docs/docker-cases.md` (user guide), `docs/docker-cases-plan.md` (design)
 
-**External CLI modes (OpenCode, Codex, Gemini, Antigravity)**: `isExternalCliMode()` in `session.ts` gates Claude-specific behavior off (Ralph tracker, BashToolParser, token/CLI-info parsing, ❯-prompt readiness); these CLIs render their own TUIs, so readiness is output stabilization instead. All four **require tmux with no direct PTY fallback**, because secrets are injected via socket-scoped `tmux setenv` and never on the spawn command line. ⚠️ `run*()` in `session-ui.js` MUST unwrap the `{success,data}` envelope; reading the raw shape silently breaks the run. → [architecture-invariants#external-cli-modes-opencode-codex-gemini](docs/architecture-invariants.md#external-cli-modes-opencode-codex-gemini)
+**External CLI modes (OpenCode, Codex, Gemini, Antigravity)**: `isExternalCliMode()` in `session.ts` gates Claude-specific behavior off (Ralph tracker, BashToolParser, token/CLI-info parsing, ❯-prompt readiness); these CLIs render their own TUIs, so readiness is output stabilization instead. All four **require tmux with no direct PTY fallback**, because secrets are injected via socket-scoped `tmux setenv` and never on the spawn command line. ⚠️ `run*()` in `session-ui.js` MUST unwrap the `{success,data}` envelope; reading the raw shape silently breaks the run. ⚠️ **The local-echo overlay is DISABLED for codex sessions** (`_updateLocalEchoState` in terminal-ui.js, same branch as shell): codex's composer reacts per keystroke ("/" pops a live-filtering picker, arrows edit server-side state, the composer grows as it wraps), so buffer-until-Enter starved it into issues #218/#219/#220/#222. Codex also **drops keystrokes that share a PTY read with a bracketed paste**, so flushed text and the paste sequence must go out as separate delayed writes (mirroring the Enter branch's delayed `\r`). Tests: `test/local-echo-codex-gating.test.ts`. → [architecture-invariants#external-cli-modes-opencode-codex-gemini](docs/architecture-invariants.md#external-cli-modes-opencode-codex-gemini)
 
 **Run launch synchronization**: the Run entrypoint holds an in-flight lock and disables `#runBtn` for the whole launch (≥500ms), so a double click cannot create duplicate sessions with the same `w<n>-<case>` name. `_ensureCreatedSessionVisible()` runs before `selectSession()`, and `_onSessionCreated()` stays an idempotent upsert, so POST-first and SSE-first ordering both produce exactly one rendered tab. → [architecture-invariants#run-launch-synchronization](docs/architecture-invariants.md#run-launch-synchronization)
 

docs/architecture-invariants.md

@@ -22,6 +22,8 @@ Implementation detail extracted from `CLAUDE.md` so that file stays small enough
 
 **External CLI modes (OpenCode, Codex, Gemini, Antigravity)**: `isExternalCliMode()` in `session.ts` (`mode === 'opencode' || 'codex' || 'gemini' || 'antigravity'`) gates Claude-specific behavior — Ralph tracker, BashToolParser, token/CLI-info parsing, and ❯-prompt readiness detection are all skipped (these CLIs render their own TUIs; readiness = output stabilization instead). All four modes **require tmux — no direct PTY fallback** — because secrets are injected via `tmux setenv` (socket-scoped `${this.tmux()} setenv`, never on the spawn command line): OpenCode gets `OPENCODE_CONFIG_CONTENT` etc., Codex gets `OPENAI_API_KEY`/`CODEX_API_KEY`/`CODEX_HOME` (`setCodexEnvVars`), Gemini gets `GEMINI_API_KEY`/`GOOGLE_API_KEY`/`GOOGLE_CLOUD_PROJECT`/`GOOGLE_APPLICATION_CREDENTIALS`/`GOOGLE_GENAI_USE_VERTEXAI` etc. (`setGeminiEnvVars`, all in `tmux-manager.ts`). Codex specifics: command built by `buildCodexCommand()` (`--model`, `resume <id>`, `--dangerously-bypass-approvals-and-sandbox` from the `codexConfig` payload / `codexDangerouslyBypassApprovals` app setting; `renderMode` is schema-coerced to `'hybrid'`, the only supported mode). Gemini specifics: command built by `buildGeminiCommand()` (`--skip-trust` always, `--approval-mode <default|auto_edit|yolo|plan>` defaulting to `yolo` for parity with Claude's `--dangerously-skip-permissions`, `--model`, `--resume` from the `geminiConfig` payload); availability via `GET /api/gemini/status` — session/quick-start routes fail with `OPERATION_FAILED` + install hint (`npm install -g @google/gemini-cli`) when missing. Codex AND Gemini export `COLORTERM=truecolor` + unset `NO_COLOR` (other modes unset `COLORTERM`); Gemini joins `isAltScreenStripMode()` (Codex/Claude/Gemini are Ink TUIs that repaint inline → strip alt-screen/`3J` so scrollback survives). Codex availability via `GET /api/codex/status`. Antigravity specifics: command built by `buildAntigravityCommand()` (`--model`, `--conversation <id>` resume, `--dangerously-skip-permissions` from the `antigravityConfig` payload); availability via `GET /api/antigravity/status` — routes fail with `OPERATION_FAILED` + install hint (`curl -fsSL https://antigravity.google/cli/install.sh | bash`) when missing. Unlike the other three it is NOT an npm package (standalone binary, `~/.local/bin/agy`), which is why `docker/agent.Dockerfile` installs it with its own `--dir /usr/local/bin` step rather than in the `npm install -g` line, and why it does NOT join `isAltScreenStripMode()`. Frontend: run-mode dropdown → `runCodex()`/`runGemini()` in `session-ui.js` ("Run CX"/"Run GM" labels), App Settings → Codex CLI tab; Respawn/Ralph options are Claude-only, so session options open on the Summary tab for external CLI sessions. ⚠️ `run*()` MUST unwrap the `{success,data}` envelope (`(await res.json()).data.available` / `data.data.sessionId`) — reading the raw shape silently breaks the run. Tests: `test/run-mode-ui.test.ts` + `test/gemini-mode.test.ts` (vm-sandbox harness, no real DOM).
 
+**Codex input path (issues #218/#219/#220/#222)**: the local-echo overlay is **DISABLED for codex-mode sessions** (`_updateLocalEchoState` in terminal-ui.js, same branch as shell). Codex's composer is interactive per keystroke: typing "/" pops a live-filtering command picker (#222 was "picker never appears" because the "/" sat in the overlay until Enter), the composer grows/rewraps as it fills (#220: a long typed prompt existed ONLY in the overlay DOM, so codex never grew the composer), arrows and Ctrl+Backspace edit server-side state (#218: arrows were forwarded to an EMPTY composer while the typed text sat pending; the `\x08` control-char flush then left the overlay stateless so `\x7f` was swallowed as "nothing to remove"), and pastes arrive bracketed (#219: `terminal.paste()` wraps in `\x1b[200~..201~`, which the multi-byte-ESC branch forwarded WITHOUT flushing pending text, so the paste landed before it). The shared overlay branch (claude/gemini/opencode still buffer) gained three fixes: bracketed pastes flush pending text first, composer nav keys (`isComposerNavKey` allowlist in `CodemanTerminalInput` — arrows/Home/End/Delete/PgUp/PgDn incl. modifiers, deliberately excluding DA/CPR/DSR query responses) flush and hand the session to **pass-through** (plain PTY echo until Enter/Ctrl+C, because after cursor movement the append-only overlay cannot track edits), and a backspace that finds no overlay state is FORWARDED instead of swallowed. ⚠️ **Codex drops keystrokes that arrive in the same PTY read as a bracketed paste** (upstream `bottom_pane/paste_burst.rs` holds rapid chars for paste classification; verified against codex 0.147.0 by writing `hello\x1b[200~PASTED\x1b[201~` into the tmux client PTY in one write → composer shows only `PASTED`, while a 100ms gap yields `helloPASTED`), so the flush sends the typed text immediately and delays the paste sequence by 80ms — the same two-phase shape as the Enter branch's delayed `\r`. Related protocol fact: xterm.js sends `0x08` for Ctrl+Backspace, which codex's keymap binds to delete-ONE-char (`ctrl(Char('h'))`); real word-delete needs the kitty CSI-u encoding (`\x1b[127;5u`), which xterm.js 6.0.0 cannot emit (kitty support lands in 6.1.0-beta) — an upstream limitation, not a Codeman bug. E2E technique: codex 0.147 reaches its composer with any dummy key in `$CODEX_HOME/auth.json` (`{"OPENAI_API_KEY":"sk-test-..."}`), so a real TUI can be driven headlessly (envOverrides `CODEX_HOME` rides the `CODEX_*` allowlist) without real credentials. Tests: `test/local-echo-codex-gating.test.ts` (vm harness: nav-key classifier truth table, per-mode gating, flush helper, pass-through routing).
+
 ### Remote sessions over SSH
 
 **Remote sessions (SSH)**: Sessions can run the agent inside a durable `tmux -L codeman-remote new-session -A` **on a remote host** so it survives the SSH drop (COD-104), and can also **discover + attach** to `codeman-*` sessions another Codeman launched there — attached (`owned:false`) sessions **detach, never kill** on tab close (COD-105). **Shared/collaborative** (COD-106): remote set-options are scoped per-session (never `-g`) and `window-size latest` lets multiple clients attach the same session at different viewports without clamping to the smallest; a client count surfaces a "shared · N" badge. **Auto-reconnect** (COD-108): a bounded-backoff watcher re-establishes a dropped remote session's local ssh pane and reattaches the still-running durable remote tmux (kill-switch `remoteAutoReconnect`, default ON); the pure pieces (backoff schedule, per-session reconnect state, `decideReconnect` eligibility) live in `src/remote-reconnect.ts` (tests: `test/remote-auto-reconnect.test.ts`), while `tmux-manager.ts` owns the live pane probe + timers. Owned sessions propagate `kill-session` to the remote on close; non-owned never do. ⚠️ Command-injection surface (COD-107): all ssh command lines flow through the single shell-safe `buildSshConnectionArgs()` — every user field (`-J jumpHost`, `-i identity`, `-o`) is `shellescape`d; never hand-build an ssh line elsewhere. Full design: `docs/remote-sessions.md`.

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "aicodeman",
-  "version": "1.12.1",
+  "version": "1.12.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "aicodeman",
-      "version": "1.12.1",
+      "version": "1.12.2",
       "hasInstallScript": true,
       "license": "MIT",
       "workspaces": [

package.json

@@ -1,6 +1,6 @@
 {
   "name": "aicodeman",
-  "version": "1.12.1",
+  "version": "1.12.2",
   "description": "Mission control for AI coding agents - run 20 autonomous agents with real-time monitoring and session persistence",
   "type": "module",
   "main": "dist/index.js",

src/web/public/terminal-ui.js

@@ -44,6 +44,23 @@
   // Bound on page keys emitted from one gesture batch, mirroring the SGR tick
   // cap: a fling must not build a backlog that keeps paging after it stops.
   const PAGE_KEY_MAX_PER_BATCH = 3;
+  // Composer navigation keys as xterm.js encodes user keystrokes: plain and
+  // modified arrows (CSI A-D, CSI 1;mA-D, SS3 A-D), Home/End (CSI H/F, SS3
+  // H/F, CSI 1~/4~), Insert/Delete/PgUp/PgDn (CSI 2~/3~/5~/6~, optional
+  // modifier). Deliberately EXCLUDES terminal query responses that also
+  // arrive via onData (DA `\x1b[?1;2c`, CPR `\x1b[12;34R`) and function
+  // keys, so only genuine cursor/editing keys trigger the local-echo flush.
+  // eslint-disable-next-line no-control-regex
+  const COMPOSER_NAV_KEY_PATTERN = /^\x1b(?:\[(?:[ABCDHF]|1;[2-8][ABCDHF]|[1-8](?:;[2-8])?~)|O[ABCDHF])$/;
+  // Prefix xterm.js puts on terminal.paste() payloads while the application
+  // has bracketed-paste mode (DECSET 2004) enabled. Codex, Claude Code and
+  // tmux all enable it, so browser pastes arrive as one onData chunk of
+  // `\x1b[200~<text>\x1b[201~`.
+  const BRACKETED_PASTE_START = '\x1b[200~';
+
+  function isComposerNavKey(data) {
+    return COMPOSER_NAV_KEY_PATTERN.test(data);
+  }
 
   function isTerminalQueryResponse(data) {
     return TERMINAL_QUERY_RESPONSE_PATTERN.test(data) || TERMINAL_OSC_RESPONSE_PATTERN.test(data);
@@ -81,6 +98,8 @@
   global.CodemanTerminalInput = {
     isTerminalQueryResponse,
     shouldSuppressTerminalQueryResponse,
+    isComposerNavKey,
+    BRACKETED_PASTE_START,
     USER_SCROLL_STICKY_SUPPRESS_MS,
     TOUCH_COMPAT_MOUSE_SUPPRESS_MS,
     REPLAY_ESCAPE_RE,
@@ -868,11 +887,23 @@ Object.assign(CodemanApp.prototype, {
         }
         this._lastTerminalData = { data, time: performance.now() };
 
+        // ── Local Echo Pass-through ──
+        // After a composer nav key (arrow/Home/End/Delete) the real cursor may
+        // sit mid-text, where the overlay's append-only buffering would corrupt
+        // both the preview and the submitted text. Such sessions are handed
+        // back to plain PTY echo until Enter or Ctrl+C submits/cancels the
+        // composer line (see the nav-key branch below).
+        const echoPassthrough =
+          this._localEchoEnabled && this._echoPassthroughSessions?.has(this.activeSessionId);
+        if (echoPassthrough && (data === '\r' || data === '\x03')) {
+          this._echoPassthroughSessions.delete(this.activeSessionId);
+        }
+
         // ── Local Echo Mode ──
         // When enabled, keystrokes are buffered locally in the overlay for
         // instant visual feedback.  Nothing is sent to the PTY until Enter
         // (or a control char) is pressed — avoids out-of-order char delivery.
-        if (this._localEchoEnabled) {
+        if (this._localEchoEnabled && !echoPassthrough) {
           if (data === '\x7f') {
             const source = this._localEchoOverlay?.removeChar();
             if (source === 'flushed') {
@@ -889,9 +920,16 @@ Object.assign(CodemanApp.prototype, {
               }
               this._pendingInput += data;
               flushInput();
+            } else if (source === false) {
+              // Nothing pending, nothing flushed, nothing detected. The
+              // composer may still hold text the overlay cannot see (buffer
+              // detection is suppressed after a control-char flush), so
+              // forward the backspace instead of swallowing it (issue #218);
+              // an empty composer ignores it.
+              this._pendingInput += data;
+              flushInput();
             }
             // 'pending' = removed unsent text (no PTY backspace needed)
-            // false = nothing to remove (swallow the backspace)
             return;
           }
           if (/^[\r\n]+$/.test(data)) {
@@ -933,6 +971,41 @@ Object.assign(CodemanApp.prototype, {
             // Single-byte ESC (user pressing Escape) still falls through to
             // the control char handler below.
             if (data.length > 1 && data.charCodeAt(0) === 27) {
+              // Bracketed paste (terminal.paste() while DECSET 2004 is on):
+              // flush typed-but-unsent overlay text FIRST so the pasted block
+              // lands after it in the composer, not before it (issue #219).
+              // The paste sequence gets its own delayed write: Codex's
+              // paste-burst handling drops keystrokes that arrive in the SAME
+              // PTY read as a bracketed paste (verified against codex 0.147),
+              // mirroring the delayed \r in the Enter branch above.
+              if (data.startsWith(window.CodemanTerminalInput.BRACKETED_PASTE_START)) {
+                const hadPending = !!this._localEchoOverlay?.pendingText;
+                this._flushLocalEchoPending();
+                if (hadPending) {
+                  flushInput();
+                  setTimeout(() => {
+                    this._pendingInput += data;
+                    flushInput();
+                  }, 80);
+                } else {
+                  this._pendingInput += data;
+                  flushInput();
+                }
+                return;
+              }
+              // Composer nav keys (arrows, Home/End, Delete, PgUp/PgDn):
+              // flush unsent text so the key edits the real composer state,
+              // then hand the session to plain PTY echo until Enter/Ctrl+C.
+              // The cursor may now sit mid-text, where append-only buffering
+              // cannot track edits (issue #218).
+              if (window.CodemanTerminalInput.isComposerNavKey(data)) {
+                this._flushLocalEchoPending();
+                if (!this._echoPassthroughSessions) this._echoPassthroughSessions = new Set();
+                this._echoPassthroughSessions.add(this.activeSessionId);
+                this._pendingInput += data;
+                flushInput();
+                return;
+              }
               // Multi-byte escape sequence — forward to PTY without clearing
               // overlay/flushed state (terminal response, not user input)
               this._pendingInput += data;
@@ -2311,6 +2384,23 @@ Object.assign(CodemanApp.prototype, {
     }
   },
 
+  /**
+   * Flush the local-echo overlay's unsent text into `_pendingInput` (no
+   * trailing Enter) and reset overlay + flushed-state tracking. Used before
+   * forwarding sequences that must arrive AFTER the typed text (bracketed
+   * paste, composer nav keys). The caller forwards its own sequence: nav keys
+   * ride the same write, pastes get a delayed second write because codex
+   * drops keys that share a PTY read with a bracketed paste.
+   */
+  _flushLocalEchoPending() {
+    const text = this._localEchoOverlay?.pendingText || '';
+    this._localEchoOverlay?.clear();
+    this._localEchoOverlay?.suppressBufferDetection();
+    this._flushedOffsets?.delete(this.activeSessionId);
+    this._flushedTexts?.delete(this.activeSessionId);
+    if (text) this._pendingInput += text;
+  },
+
   /**
    * Update local echo overlay state based on settings.
    * Enabled whenever the setting is on — works during idle AND busy.
@@ -2350,8 +2440,14 @@ Object.assign(CodemanApp.prototype, {
             }
           },
         });
-      } else if (session.mode === 'shell') {
+      } else if (session.mode === 'shell' || session.mode === 'codex') {
         // Shell mode: the shell provides its own PTY echo so the overlay isn't needed.
+        // Codex mode: the composer is fully interactive per keystroke. Typing
+        // "/" pops a live-filtering command picker (issue #222), the composer
+        // grows and rewraps as it fills (#220), pastes are bracketed (#219)
+        // and arrows/history edit server-side state (#218). Buffering
+        // keystrokes until Enter starves all of that, so codex sessions use
+        // plain PTY echo like shell.
         // Disable it by clearing any pending text.
         this._localEchoOverlay.clear();
         this._localEchoEnabled = false;
@@ -2755,7 +2851,11 @@ Object.assign(CodemanApp.prototype, {
   /** Insert editable text at the active prompt without pressing Enter. */
   insertTerminalText(text) {
     if (!this.activeSessionId || !text) return;
-    if (this._localEchoEnabled && this._localEchoOverlay) {
+    if (
+      this._localEchoEnabled &&
+      this._localEchoOverlay &&
+      !this._echoPassthroughSessions?.has(this.activeSessionId)
+    ) {
       this._localEchoOverlay.appendText(text);
     } else {
       this.sendInput(text).catch(() => {});

test/local-echo-codex-gating.test.ts

@@ -0,0 +1,240 @@
+/**
+ * @fileoverview Local-echo gating and input-ordering helpers for codex
+ * sessions (issues #218/#219/#220/#222).
+ *
+ * Codex's composer is interactive per keystroke: typing "/" pops a
+ * live-filtering command picker (#222), the composer grows as it wraps
+ * (#220), pastes arrive bracketed (#219) and arrows edit server-side state
+ * (#218). The buffer-until-Enter local echo overlay starves all of that, so
+ * codex-mode sessions must use plain PTY echo like shell. The shared overlay
+ * branch (claude/gemini/opencode) additionally flushes typed-but-unsent text
+ * before forwarding bracketed pastes and composer nav keys, and hands the
+ * session to pass-through after a nav key.
+ *
+ * Loaded via `vm` with a stubbed context (no jsdom), mirroring
+ * test/input-send-order.test.ts. End-to-end behavior was verified against a
+ * real codex 0.147.0 TUI in tmux through a headless browser.
+ */
+import { readFileSync } from 'node:fs';
+import { performance } from 'node:perf_hooks';
+import { resolve } from 'node:path';
+import vm from 'node:vm';
+import { describe, expect, it, vi } from 'vitest';
+
+type OverlayStub = {
+  pendingText: string;
+  cleared: number;
+  suppressed: number;
+  prompts: unknown[];
+  clear(): void;
+  suppressBufferDetection(): void;
+  setPrompt(p: unknown): void;
+  appendText: ReturnType<typeof vi.fn>;
+};
+
+type AppInstance = {
+  activeSessionId: string | null;
+  sessions: Map<string, { mode: string }>;
+  terminal?: { focus: () => void };
+  _localEchoEnabled?: boolean;
+  _localEchoOverlay?: OverlayStub;
+  _pendingInput: string;
+  _flushedOffsets?: Map<string, number>;
+  _flushedTexts?: Map<string, string>;
+  _echoPassthroughSessions?: Set<string>;
+  loadAppSettingsFromStorage: () => Record<string, unknown>;
+  sendInput: ReturnType<typeof vi.fn>;
+  _updateLocalEchoState(): void;
+  _flushLocalEchoPending(): void;
+  insertTerminalText(text: string): void;
+};
+
+function loadContext() {
+  const read = (f: string) => readFileSync(resolve(import.meta.dirname, `../src/web/public/${f}`), 'utf8');
+  const windowStub: Record<string, unknown> = {
+    addEventListener: vi.fn(),
+    removeEventListener: vi.fn(),
+  };
+  const context = vm.createContext({
+    console,
+    performance,
+    setInterval: vi.fn(),
+    clearInterval: vi.fn(),
+    setTimeout,
+    clearTimeout,
+    requestAnimationFrame: vi.fn(),
+    HTMLCanvasElement: class HTMLCanvasElement {},
+    WebSocket: { OPEN: 1 },
+    fetch: vi.fn(),
+    document: { addEventListener: vi.fn(), documentElement: { dataset: {} } },
+    localStorage: {
+      length: 0,
+      key: vi.fn(),
+      getItem: vi.fn(),
+      setItem: vi.fn(),
+      removeItem: vi.fn(),
+    },
+    window: windowStub,
+    MobileDetection: {
+      isTouchDevice: () => true,
+      isHandheldDevice: () => false,
+      getDeviceType: () => 'desktop',
+    },
+  });
+  vm.runInContext(
+    `${read('constants.js')}\n${read('app.js')}\n${read('terminal-ui.js')}\nglobalThis.__CodemanApp = CodemanApp;`,
+    context
+  );
+  const CodemanApp = (context as unknown as { __CodemanApp: { prototype: object } }).__CodemanApp;
+  return {
+    CodemanApp,
+    terminalInput: (windowStub as { CodemanTerminalInput?: Record<string, unknown> }).CodemanTerminalInput!,
+  };
+}
+
+const { CodemanApp, terminalInput } = loadContext();
+const isComposerNavKey = terminalInput.isComposerNavKey as (data: string) => boolean;
+
+function makeOverlay(pending = ''): OverlayStub {
+  return {
+    pendingText: pending,
+    cleared: 0,
+    suppressed: 0,
+    prompts: [],
+    clear() {
+      this.cleared++;
+      this.pendingText = '';
+    },
+    suppressBufferDetection() {
+      this.suppressed++;
+    },
+    setPrompt(p: unknown) {
+      this.prompts.push(p);
+    },
+    appendText: vi.fn(),
+  };
+}
+
+function makeApp(mode: string, overlay = makeOverlay()): AppInstance {
+  const app = Object.create(CodemanApp.prototype) as AppInstance;
+  app.activeSessionId = 's1';
+  app.sessions = new Map([['s1', { mode }]]);
+  app._localEchoOverlay = overlay;
+  app._pendingInput = '';
+  app._flushedOffsets = new Map([['s1', 3]]);
+  app._flushedTexts = new Map([['s1', 'abc']]);
+  app.loadAppSettingsFromStorage = () => ({ localEchoEnabled: true });
+  app.sendInput = vi.fn().mockResolvedValue(undefined);
+  return app;
+}
+
+describe('CodemanTerminalInput.isComposerNavKey', () => {
+  it.each([
+    '\x1b[A',
+    '\x1b[B',
+    '\x1b[C',
+    '\x1b[D',
+    '\x1b[H',
+    '\x1b[F',
+    '\x1bOA',
+    '\x1bOD',
+    '\x1bOH',
+    '\x1bOF',
+    '\x1b[1;5C', // Ctrl+Right
+    '\x1b[1;2A', // Shift+Up
+    '\x1b[3~', // Delete
+    '\x1b[3;5~', // Ctrl+Delete
+    '\x1b[5~', // PgUp
+    '\x1b[6~', // PgDn
+    '\x1b[1~', // Home variant
+    '\x1b[4~', // End variant
+  ])('classifies %j as a composer nav key', (seq) => {
+    expect(isComposerNavKey(seq)).toBe(true);
+  });
+
+  it.each([
+    '\x1b[?1;2c', // DA1 response
+    '\x1b[>0;276;0c', // DA2 response
+    '\x1b[12;34R', // CPR response
+    '\x1b[1;3R', // CPR response (small coords)
+    '\x1b[0n', // DSR response
+    '\x1b[15~', // F5 (function keys stay out)
+    '\x1b[200~hi\x1b[201~', // bracketed paste
+    '\x1b[?u', // kitty keyboard query response
+    '\x1bOP', // F1
+    '\x1b',
+    'a',
+    'abc',
+    '\r',
+  ])('does NOT classify %j as a composer nav key', (seq) => {
+    expect(isComposerNavKey(seq)).toBe(false);
+  });
+
+  it('exports the bracketed paste prefix xterm puts on terminal.paste()', () => {
+    expect(terminalInput.BRACKETED_PASTE_START).toBe('\x1b[200~');
+  });
+});
+
+describe('_updateLocalEchoState mode gating', () => {
+  it('disables the overlay for codex sessions even with the setting ON (issues #218/#219/#220/#222)', () => {
+    const overlay = makeOverlay('pending');
+    const app = makeApp('codex', overlay);
+    app._updateLocalEchoState();
+    expect(app._localEchoEnabled).toBe(false);
+    expect(overlay.cleared).toBeGreaterThan(0);
+  });
+
+  it('disables the overlay for shell sessions (PTY provides its own echo)', () => {
+    const app = makeApp('shell');
+    app._updateLocalEchoState();
+    expect(app._localEchoEnabled).toBe(false);
+  });
+
+  it.each(['claude', 'gemini', 'opencode'])('keeps the overlay enabled for %s sessions', (mode) => {
+    const overlay = makeOverlay();
+    const app = makeApp(mode, overlay);
+    app._updateLocalEchoState();
+    expect(app._localEchoEnabled).toBe(true);
+    expect(overlay.prompts.length).toBeGreaterThan(0);
+  });
+});
+
+describe('_flushLocalEchoPending', () => {
+  it('moves pending text into _pendingInput and resets overlay + flushed tracking', () => {
+    const overlay = makeOverlay('hello');
+    const app = makeApp('claude', overlay);
+    app._flushLocalEchoPending();
+    expect(app._pendingInput).toBe('hello');
+    expect(overlay.cleared).toBe(1);
+    expect(overlay.suppressed).toBe(1);
+    expect(app._flushedOffsets!.has('s1')).toBe(false);
+    expect(app._flushedTexts!.has('s1')).toBe(false);
+  });
+
+  it('appends nothing when the overlay is empty', () => {
+    const app = makeApp('claude', makeOverlay(''));
+    app._flushLocalEchoPending();
+    expect(app._pendingInput).toBe('');
+  });
+});
+
+describe('insertTerminalText pass-through routing', () => {
+  it('appends to the overlay while local echo is buffering', () => {
+    const overlay = makeOverlay();
+    const app = makeApp('claude', overlay);
+    app._localEchoEnabled = true;
+    app.insertTerminalText('path.txt');
+    expect(overlay.appendText).toHaveBeenCalledWith('path.txt');
+    expect(app.sendInput).not.toHaveBeenCalled();
+  });
+
+  it('sends directly while the session is in nav-key pass-through', () => {
+    const overlay = makeOverlay();
+    const app = makeApp('claude', overlay);
+    app._localEchoEnabled = true;
+    app._echoPassthroughSessions = new Set(['s1']);
+    app.insertTerminalText('path.txt');
+    expect(app.sendInput).toHaveBeenCalledWith('path.txt');
+    expect(overlay.appendText).not.toHaveBeenCalled();
+  });
+});