Add Auto permission mode

Claude Code now ships `--permission-mode auto`, where a safety classifier
approves routine actions and blocks risky ones without prompting. Expose it
as a fifth mode between Accept Edits and Bypass: terminals, resumed sessions,
the tab badge, and the scheduler's task runner all map it to the flag.

Headless scheduled runs don't stall in Auto (blocked actions are denied, not
prompted), so the task editor shows a softer note instead of the stall warning.

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

HOW-TO-USE.md

@@ -469,6 +469,7 @@ replaces the old Full Permissions on/off switch.
 | **Plan** | Proposes a plan and makes no changes | `--permission-mode plan` |
 | **Default** | Asks before each tool call | *(nothing — Claude Code's own default)* |
 | **Accept Edits** | Auto-approves file edits; other tools still prompt | `--permission-mode acceptEdits` |
+| **Auto** | A safety classifier approves routine actions and blocks risky ones, without prompting | `--permission-mode auto` |
 | **Bypass** | Auto-approves every tool call | `--dangerously-skip-permissions` |
 
 New projects start in **Default**. Projects created before permission modes existed keep behaving
@@ -480,12 +481,17 @@ the way they did: one that had Full Permissions on becomes **Bypass**, one that
 > has Docker socket access or reaches services on your network. The Overview tab tells you whether
 > the in-container sandbox is also on.
 
+**Auto** sits between Accept Edits and Bypass: Claude Code's own classifier reviews each action,
+lets routine work through and blocks things that look risky (such as destructive or
+exfiltrating commands) — no prompts either way. Whether it is available depends on your Claude
+Code account and model; see Claude Code's documentation on permission modes.
+
 ### When a change takes effect
 
 - **Terminals** — the mode is applied when a terminal is opened, so it affects terminals you open
   from then on. A Claude session that is already running keeps the permissions it started with;
   close the tab and open a new terminal to change it. The badge on each terminal tab shows the mode
-  that terminal was launched with (`plan`, `ask`, `edits`, `bypass`).
+  that terminal was launched with (`plan`, `ask`, `edits`, `auto`, `bypass`).
 - **Resumed sessions** — a session resumed from the **Sessions** tab uses the project's current
   mode.
 - **Scheduled tasks** — these now honour the permission mode too (they previously always ran with
@@ -494,8 +500,9 @@ the way they did: one that had Full Permissions on becomes **Bypass**, one that
   mode change to reach the scheduler.
 
 > Scheduled tasks run headless (`claude -p`) and cannot answer a permission prompt. In any mode
-> other than **Bypass**, a task may simply stop early when Claude Code asks for approval. Its run
-> log records which mode it used.
+> other than **Auto** or **Bypass**, a task may simply stop early when Claude Code asks for
+> approval. In **Auto**, actions the classifier blocks are denied and the run carries on without
+> them. Its run log records which mode it used.
 
 ---
 
@@ -1349,7 +1356,8 @@ Scheduled runs use the project's [permission mode](#permission-modes) — they n
 with `--dangerously-skip-permissions`. Because the mode travels into the container as an
 environment variable, **stop and start the project** after changing it for the scheduler to see the
 change. Remember that a headless run cannot answer a permission prompt, so in any mode other than
-**Bypass** a task may stop early when Claude Code asks for approval; the run log records the mode
+**Auto** or **Bypass** a task may stop early when Claude Code asks for approval (in Auto, blocked
+actions are denied instead); the run log records the mode
 that was used.
 
 ### Creating Tasks

README.md

@@ -114,7 +114,7 @@ progress modal.
 
 ## Permission Modes
 
-`PermissionMode` in `models/project.rs` replaces the old `full_permissions` boolean. Four states,
+`PermissionMode` in `models/project.rs` replaces the old `full_permissions` boolean. Five states,
 mapped to CLI flags by `PermissionMode::cli_args()`:
 
 | Mode | Serialized | CLI args passed to `claude` |
@@ -122,6 +122,7 @@ mapped to CLI flags by `PermissionMode::cli_args()`:
 | **Plan** | `plan` | `--permission-mode plan` |
 | **Default** | `default` | *(none)* |
 | **Accept Edits** | `acceptEdits` | `--permission-mode acceptEdits` |
+| **Auto** | `auto` | `--permission-mode auto` |
 | **Bypass** | `bypass` | `--dangerously-skip-permissions` |
 
 `Project.permission_mode` is `Option<PermissionMode>`; `effective_permission_mode()` falls back to
@@ -531,7 +532,7 @@ Triple-C includes optional speech-to-text powered by [Faster Whisper](https://gi
 | `app/src/components/layout/StatusBar.tsx` | Project/terminal counts, Notes toggle, STT mic |
 | `app/src/components/projects/ProjectRow.tsx` | Select-only sidebar row; opens Project Home, with hover start/stop and terminal controls |
 | `app/src/components/projects/ProjectList.tsx` | Project list in sidebar |
-| `app/src/components/projects/PermissionModeControl.tsx` | Plan / Default / Accept Edits / Bypass segmented control |
+| `app/src/components/projects/PermissionModeControl.tsx` | Plan / Default / Accept Edits / Auto / Bypass segmented control |
 | `app/src/components/ui/` | Shared primitives: `Modal`, `Button`, `Toggle`, `Field`, `SegmentedControl`, `StatusIndicator`, `SaveIndicator`, `OverflowMenu`, `ToastHost`, `Tooltip` |
 | `app/src/hooks/useKeyboardShortcuts.ts` | `Ctrl+T`, `Ctrl+Shift+W`, `Ctrl+Tab`, `Ctrl+1..9`, `Ctrl+Shift+←/→` |
 | `app/src/hooks/useContainerProgress.ts` | `container-progress` event → inline progress lines |

TECHNICAL.md

@@ -186,7 +186,7 @@ host keychain secrets.
 
 ### Permission Modes
 
-`PermissionMode` (`models/project.rs`) is a four-state enum replacing the earlier `full_permissions`
+`PermissionMode` (`models/project.rs`) is a five-state enum replacing the earlier `full_permissions`
 boolean. It reaches Claude Code by two different routes:
 
 | Mode | `cli_args()` — interactive terminals | `as_env_value()` — scheduler |
@@ -194,6 +194,7 @@ boolean. It reaches Claude Code by two different routes:
 | `Plan` | `--permission-mode plan` | `plan` |
 | `Default` | *(no flag)* | `default` |
 | `AcceptEdits` | `--permission-mode acceptEdits` | `acceptEdits` |
+| `Auto` | `--permission-mode auto` | `auto` |
 | `Bypass` | `--dangerously-skip-permissions` | `bypass` |
 
 `Project.permission_mode` is `Option<PermissionMode>`, and `effective_permission_mode()` resolves
@@ -474,7 +475,7 @@ triple-c/
     │       │   ├── ProjectRow.tsx        # Select-only sidebar row
     │       │   ├── ProjectList.tsx       # Sidebar project list
     │       │   ├── AddProjectDialog.tsx  # New-project dialog
-    │       │   ├── PermissionModeControl.tsx # Plan/Default/Accept Edits/Bypass
+    │       │   ├── PermissionModeControl.tsx # Plan/Default/Accept Edits/Auto/Bypass
     │       │   ├── ConfirmRemoveModal.tsx    # Project removal confirmation
     │       │   └── *Editor.tsx / *Modal.tsx  # EnvVars, PortMappings,
     │       │                                 # ClaudeInstructions, ClaudeCodeSettings —

app/src-tauri/src/commands/terminal_commands.rs

@@ -469,6 +469,20 @@ mod tests {
         assert!(!cmd[2].contains(" -n "), "empty name must add no flag: {}", cmd[2]);
     }
 
+    /// Auto mode is passed as a `--permission-mode` value, not its own flag.
+    #[test]
+    fn build_terminal_cmd_passes_auto_permission_mode() {
+        let mut p = project("anthropic", serde_json::Value::Null);
+        p.permission_mode = Some(crate::models::project::PermissionMode::Auto);
+        let cmd = build_claude_terminal_cmd(&p, None, None);
+
+        assert!(
+            cmd[2].contains("exec claude '--permission-mode' 'auto'"),
+            "got: {}",
+            cmd[2]
+        );
+    }
+
     /// The Bedrock-profile path keeps its AWS validation *and* gains the
     /// prelude, immediately before the exec.
     #[test]

app/src-tauri/src/models/project.rs

@@ -166,6 +166,9 @@ pub enum PermissionMode {
     Default,
     /// Auto-accept file edits, prompt for everything else.
     AcceptEdits,
+    /// Claude Code's classifier approves safe actions and blocks risky ones,
+    /// without prompting.
+    Auto,
     /// Skip all permission prompts.
     Bypass,
 }
@@ -180,6 +183,7 @@ impl PermissionMode {
             PermissionMode::AcceptEdits => {
                 vec!["--permission-mode".to_string(), "acceptEdits".to_string()]
             }
+            PermissionMode::Auto => vec!["--permission-mode".to_string(), "auto".to_string()],
             PermissionMode::Bypass => vec!["--dangerously-skip-permissions".to_string()],
         }
     }
@@ -191,6 +195,7 @@ impl PermissionMode {
             PermissionMode::Plan => "plan",
             PermissionMode::Default => "default",
             PermissionMode::AcceptEdits => "acceptEdits",
+            PermissionMode::Auto => "auto",
             PermissionMode::Bypass => "bypass",
         }
     }

app/src/components/layout/MainTabs.tsx

@@ -26,6 +26,7 @@ const MODE_BADGE: Record<PermissionMode, { text: string; className: string }> =
   plan: { text: "plan", className: "bg-[var(--bg-tertiary)] text-[var(--text-secondary)]" },
   default: { text: "ask", className: "bg-[var(--bg-tertiary)] text-[var(--text-secondary)]" },
   acceptEdits: { text: "edits", className: "bg-[var(--accent-muted)] text-[var(--accent)]" },
+  auto: { text: "auto", className: "bg-[var(--accent-muted)] text-[var(--accent)]" },
   bypass: { text: "bypass", className: "bg-[var(--warning-muted)] text-[var(--warning)]" },
 };
 

app/src/components/projects/PermissionModeControl.test.tsx

@@ -75,11 +75,11 @@ describe("PermissionModeControl", () => {
     vi.clearAllMocks();
   });
 
-  it("renders all four modes as a radio group with the effective one checked", () => {
+  it("renders all five modes as a radio group with the effective one checked", () => {
     render(<PermissionModeControl project={baseProject} onChange={onChange} />);
     const group = screen.getByRole("radiogroup", { name: "Permission mode" });
     expect(group).toBeInTheDocument();
-    expect(screen.getAllByRole("radio")).toHaveLength(4);
+    expect(screen.getAllByRole("radio")).toHaveLength(5);
     expect(screen.getByRole("radio", { name: "Default" })).toHaveAttribute(
       "aria-checked",
       "true",
@@ -92,6 +92,14 @@ describe("PermissionModeControl", () => {
     expect(onChange).toHaveBeenCalledWith("acceptEdits");
   });
 
+  it("offers Auto between Accept Edits and Bypass", () => {
+    render(<PermissionModeControl project={baseProject} onChange={onChange} />);
+    const labels = screen.getAllByRole("radio").map((r) => r.textContent);
+    expect(labels).toEqual(["Plan", "Default", "Accept Edits", "Auto", "Bypass"]);
+    fireEvent.click(screen.getByRole("radio", { name: "Auto" }));
+    expect(onChange).toHaveBeenCalledWith("auto");
+  });
+
   it("moves selection with the arrow keys", () => {
     render(<PermissionModeControl project={baseProject} onChange={onChange} />);
     fireEvent.keyDown(screen.getByRole("radiogroup", { name: "Permission mode" }), {

app/src/components/projects/PermissionModeControl.tsx

@@ -9,6 +9,11 @@ export const PERMISSION_MODES: Segment<PermissionMode>[] = [
     label: "Accept Edits",
     hint: "File edits are auto-approved; other tools still prompt.",
   },
+  {
+    value: "auto",
+    label: "Auto",
+    hint: "A safety classifier approves routine actions and blocks risky ones, without prompting.",
+  },
   {
     value: "bypass",
     label: "Bypass",

app/src/components/projects/home/TaskEditorModal.test.tsx

@@ -159,12 +159,18 @@ describe("TaskEditorModal", () => {
   });
 
   it("warns that a headless run cannot answer a permission prompt", async () => {
-    // Bypass is the only mode where an unattended run is safe from stalling.
+    // Bypass (and Auto, below) are the modes where an unattended run cannot stall.
     await renderEditor(null, { ...baseProject, permission_mode: "bypass" });
     expect(screen.getByText(/headless/i)).toBeInTheDocument();
     expect(screen.queryByText(/cannot answer a permission prompt/i)).toBeNull();
   });
 
+  it("tells Auto mode that blocked actions are denied, not prompted", async () => {
+    await renderEditor(null, { ...baseProject, permission_mode: "auto" });
+    expect(screen.queryByText(/cannot answer a permission prompt/i)).toBeNull();
+    expect(screen.getByText(/blocks are denied/i)).toBeInTheDocument();
+  });
+
   it("spells out the stall risk in any non-Bypass mode", async () => {
     await renderEditor(null, { ...baseProject, permission_mode: "default" });
     expect(screen.getByText(/cannot answer a permission prompt/i)).toBeInTheDocument();

app/src/components/projects/home/TaskEditorModal.tsx

@@ -301,11 +301,17 @@ export default function TaskEditorModal({ project, task, onClose, onSaved }: Pro
             terminal attached, using this project’s permission mode (
             <strong className="text-[var(--text-primary)]">{modeLabel}</strong>).
           </p>
-          {mode !== "bypass" && (
+          {mode === "auto" && (
+            <p className="text-xs text-[var(--text-secondary)]">
+              In Auto mode nothing prompts: actions the safety classifier blocks are denied and the
+              run carries on without them, so check the log if a task seems to have skipped a step.
+            </p>
+          )}
+          {mode !== "bypass" && mode !== "auto" && (
             <p className="text-xs text-[var(--warning)]">
               A headless run cannot answer a permission prompt. In {modeLabel} mode the task may
-              stall and produce an empty log; set the mode to Bypass in the Config tab for
-              unattended runs.
+              stall and produce an empty log; set the mode to Auto or Bypass in the Config tab
+              for unattended runs.
             </p>
           )}
         </div>

app/src/lib/types.ts

@@ -126,7 +126,7 @@ export const CUSTOM_ENDPOINT_BACKENDS: readonly Backend[] = [
 ];
 
 /** Mirrors Rust `PermissionMode` (serde camelCase). */
-export type PermissionMode = "plan" | "default" | "acceptEdits" | "bypass";
+export type PermissionMode = "plan" | "default" | "acceptEdits" | "auto" | "bypass";
 
 export type BedrockAuthMethod = "static_credentials" | "profile" | "bearer_token";
 

container/triple-c-task-runner

@@ -61,12 +61,14 @@ TASK_TYPE=$(jq -r '.type' "$TASK_FILE")
 # project's permission setting. Keep this mapping in sync with
 # PermissionMode::cli_args() in app/src-tauri/src/models/project.rs.
 # NOTE: headless `claude -p` runs cannot answer a permission prompt, so any
-# mode other than "bypass" means the task may stop early when Claude Code asks
-# for permission. Unset or unrecognized values pass no flag (Claude's default).
+# mode other than "bypass" or "auto" means the task may stop early when Claude
+# Code asks for permission. In "auto", actions the classifier blocks are
+# denied rather than prompted, so the run continues without them. Unset or unrecognized values pass no flag (Claude's default).
 PERMISSION_ARGS=()
 case "${TRIPLE_C_PERMISSION_MODE:-}" in
     plan)        PERMISSION_ARGS=(--permission-mode plan) ;;
     acceptEdits) PERMISSION_ARGS=(--permission-mode acceptEdits) ;;
+    auto)        PERMISSION_ARGS=(--permission-mode auto) ;;
     bypass)      PERMISSION_ARGS=(--dangerously-skip-permissions) ;;
     *)           PERMISSION_ARGS=() ;;
 esac