Merge pull request #628 from Randalix/fix/codex-submit-paste

fix(tmux): submit text as a bracketed paste so Codex does not swallow Enter

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

docs/architecture-invariants.md

@@ -119,7 +119,7 @@ Spawn commands are pinned as literal strings in `test/cli-registry-spawn-golden.
 
 ### Input delivery and WS resilience
 
-**Input**: `session.writeViaMux()` for programmatic/curl input — tmux `send-keys -l` (literal) + `send-keys Enter`. Single-line only (fire-and-once). Interactive **browser** input goes through a durable **exactly-once** layer: each frame carries a stable `clientId` + monotonic per-session `seq`, persisted to localStorage until the server ACKs (`{t:'ia',seq}` over WS, or HTTP 2xx), so a dropped link/reconnect can't lose or double-deliver a prompt. A duplicate is ACKed as `{t:'ia',seq,dup:true,last}` so a client whose persisted counter rolled back below the server's watermark can lift itself out instead of typing into a silently dead terminal (`docs/reliable-input-delivery.md`). **WS resilience** (#149): the upgrade URL carries `cid = clientId + ':' + perTabNonce`, and `ws-connection-registry.ts` supersedes only same-TAB reconnects (two tabs on one session coexist; input frames keep the bare `clientId` for seq dedup); reconnects back off exponentially (attempts preserved across `_connectWs`), and the header connection chip renders from a real `_wsState` lifecycle (`connecting`/`connected`/`fallback`/`reconnecting`/`disconnected`).
+**Input**: `session.writeViaMux()` for programmatic/curl input — the text as one tmux bracketed paste (`paste-buffer -p`, so Codex cannot fold the Enter into a paste burst) + `send-keys Enter`. A single character is typed with `send-keys -l` instead (`submitsAsKeys()`): Claude Code's and Codex's selection dialogs ignore a pasted `3`, and the Enter then confirms the highlighted option. Single-line only (fire-and-once). Interactive **browser** input goes through a durable **exactly-once** layer: each frame carries a stable `clientId` + monotonic per-session `seq`, persisted to localStorage until the server ACKs (`{t:'ia',seq}` over WS, or HTTP 2xx), so a dropped link/reconnect can't lose or double-deliver a prompt. A duplicate is ACKed as `{t:'ia',seq,dup:true,last}` so a client whose persisted counter rolled back below the server's watermark can lift itself out instead of typing into a silently dead terminal (`docs/reliable-input-delivery.md`). **WS resilience** (#149): the upgrade URL carries `cid = clientId + ':' + perTabNonce`, and `ws-connection-registry.ts` supersedes only same-TAB reconnects (two tabs on one session coexist; input frames keep the bare `clientId` for seq dedup); reconnects back off exponentially (attempts preserved across `_connectWs`), and the header connection chip renders from a real `_wsState` lifecycle (`connecting`/`connected`/`fallback`/`reconnecting`/`disconnected`).
 
 ### Per-session env overrides: exact-key allowlist and CLAUDE_CONFIG_DIR
 

docs/cron-guide.md

@@ -204,7 +204,7 @@ trailing carriage return:
 
 | Mode    | Mechanism                                                       | Use when                                         |
 | ------- | --------------------------------------------------------------- | ------------------------------------------------ |
-| `typed` | `session.writeViaMux()` — tmux `send-keys -l` (literal) + Enter | Default; behaves like a human typing the prompt. |
+| `typed` | `session.writeViaMux()` — the text as a tmux bracketed paste + Enter (a single character is typed, so a dialog answer selects) | Default; like a human pasting the prompt and pressing Enter. |
 | `paste` | `session.write()` — writes directly to the PTY/mux              | Bulk paste-style delivery.                       |
 
 > ⚠️ **Single-line only — enforced.** Like all programmatic input in Codeman,

docs/orchestrator-loop-architecture.md

@@ -244,7 +244,7 @@ RalphLoop.tick() → assignTasks()  // OR OrchestratorLoop does its own assignme
 session.sendInput(task.prompt)
   │
   ▼
-writeViaMux() → tmux send-keys -l "prompt..." + Enter
+writeViaMux() → tmux paste-buffer -p (prompt as one bracketed paste) + Enter
   │
   ▼
 Claude CLI receives prompt, executes, outputs results