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* fix(agents): answer Claude live control_request can_use_tool via exec policy Claude CLI emits stream-json control_request frames with subtype can_use_tool when it wants to use a native tool. The Claude live-session bridge previously dropped these frames, leaving Claude waiting for a control_response until the 180/600s no-output timeout fired (see #80819). Resolve the effective OpenClaw exec policy (per-agent tools.exec -> global tools.exec -> allowlist/on-miss defaults) once at session-start time and thread it through fingerprinting and the session record. When a can_use_tool request arrives: - Allow native Bash when the resolved policy is security=full, ask=off (matching the bypassPermissions semantics OpenClaw already documents). - Otherwise deny with a message that names the resolved policy and points the agent at OpenClaw MCP tools. Unsupported control_request subtypes get a structured error response instead of a silent no-op, and stray control_response frames are silently dropped. Adds spawn-test coverage for both allow and deny paths. Fixes #80819 * fix(agents): align Claude live control_request policy with backend defaults Resolve the effective exec policy through the same defaults that extensions/anthropic/cli-shared.ts:isOpenClawRequestedYolo and src/agents/exec-defaults.ts:resolveExecDefaults already use (security ?? "full", ask ?? "off") instead of falling back to a hand-rolled allowlist/on-miss default that disagreed with the rest of the codebase. Without this, a default-config OpenClaw deployment launches Claude with --permission-mode bypassPermissions but the bridge would still deny Bash control_requests, re-creating the #80819 stall for the very default-config case the issue reports. Also thread the effective Claude permission mode into the policy decision. Prefer the operator's explicit --permission-mode in argv, falling back to what normalizeClaudePermissionArgs would have inserted for an un-overridden launch. Native Bash is auto-allowed only when the effective mode is bypassPermissions AND tools.exec resolves to full/no-ask, so explicit raw-arg overrides like --permission-mode default or acceptEdits broaden Claude's native prompting and are honored by routing through deny. Adds a no-config regression test (default deployment allows Bash, no stall) and a permission-mode-override test (tools.exec full/off plus explicit --permission-mode default in raw args denies). Existing allow/deny tests continue to pass via the synthesized-mode fallback. * fix(agents): honor effective exec policy for Claude live Bash --------- Co-authored-by: Guillaume Thirry <g.thirry@gmail.com>
478 lines
18 KiB
Markdown
478 lines
18 KiB
Markdown
---
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summary: "Host exec approvals: policy knobs, allowlists, and the YOLO/strict workflow"
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read_when:
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- Configuring exec approvals or allowlists
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- Implementing exec approval UX in the macOS app
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- Reviewing sandbox-escape prompts and their implications
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title: "Exec approvals"
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sidebarTitle: "Exec approvals"
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---
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Exec approvals are the **companion app / node host guardrail** for letting
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a sandboxed agent run commands on a real host (`gateway` or `node`). A
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safety interlock: commands are allowed only when policy + allowlist +
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(optional) user approval all agree. Exec approvals stack **on top of**
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tool policy and elevated gating (unless elevated is set to `full`, which
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skips approvals).
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<Note>
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Effective policy is the **stricter** of `tools.exec.*` and approvals
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defaults; if an approvals field is omitted, the `tools.exec` value is
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used. Host exec also uses local approvals state on that machine - a
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host-local `ask: "always"` in `~/.openclaw/exec-approvals.json` keeps
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prompting even if session or config defaults request `ask: "on-miss"`.
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</Note>
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## Inspecting the effective policy
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| Command | What it shows |
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| ---------------------------------------------------------------- | -------------------------------------------------------------------------------------- |
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| `openclaw approvals get` / `--gateway` / `--node <id\|name\|ip>` | Requested policy, host policy sources, and the effective result. |
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| `openclaw exec-policy show` | Local-machine merged view. |
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| `openclaw exec-policy set` / `preset` | Synchronize the local requested policy with the local host approvals file in one step. |
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When a local scope requests `host=node`, `exec-policy show` reports that
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scope as node-managed at runtime instead of pretending the local
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approvals file is the source of truth.
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If the companion app UI is **not available**, any request that would
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normally prompt is resolved by the **ask fallback** (default: `deny`).
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<Tip>
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Native chat approval clients can seed channel-specific affordances on the
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pending approval message. For example, Matrix seeds reaction shortcuts
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(`✅` allow once, `❌` deny, `♾️` allow always) while still leaving
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`/approve ...` commands in the message as a fallback.
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</Tip>
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## Where it applies
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Exec approvals are enforced locally on the execution host:
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- **Gateway host** → `openclaw` process on the gateway machine.
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- **Node host** → node runner (macOS companion app or headless node host).
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### Trust model
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- Gateway-authenticated callers are trusted operators for that Gateway.
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- Paired nodes extend that trusted operator capability onto the node host.
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- Exec approvals reduce accidental execution risk, but are **not** a per-user auth boundary or filesystem read-only policy.
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- Once approved, a command can mutate files according to the selected host or sandbox filesystem permissions.
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- Approved node-host runs bind canonical execution context: canonical cwd, exact argv, env binding when present, and pinned executable path when applicable.
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- For shell scripts and direct interpreter/runtime file invocations, OpenClaw also tries to bind one concrete local file operand. If that bound file changes after approval but before execution, the run is denied instead of executing drifted content.
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- File binding is intentionally best-effort, **not** a complete semantic model of every interpreter/runtime loader path. If approval mode cannot identify exactly one concrete local file to bind, it refuses to mint an approval-backed run instead of pretending full coverage.
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### macOS split
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- The **node host service** forwards `system.run` to the **macOS app** over local IPC.
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- The **macOS app** enforces approvals and executes the command in UI context.
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## Settings and storage
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Approvals live in a local JSON file on the execution host:
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```text
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~/.openclaw/exec-approvals.json
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```
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Example schema:
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```json
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{
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"version": 1,
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"socket": {
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"path": "~/.openclaw/exec-approvals.sock",
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"token": "base64url-token"
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},
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"defaults": {
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"security": "deny",
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"ask": "on-miss",
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"askFallback": "deny",
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"autoAllowSkills": false
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},
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"agents": {
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"main": {
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"security": "allowlist",
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"ask": "on-miss",
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"askFallback": "deny",
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"autoAllowSkills": true,
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"allowlist": [
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{
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"id": "B0C8C0B3-2C2D-4F8A-9A3C-5A4B3C2D1E0F",
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"pattern": "~/Projects/**/bin/rg",
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"source": "allow-always",
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"commandText": "rg -n TODO",
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"lastUsedAt": 1737150000000,
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"lastUsedCommand": "rg -n TODO",
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"lastResolvedPath": "/Users/user/Projects/.../bin/rg"
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}
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]
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}
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}
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}
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```
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## Policy knobs
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### `exec.security`
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<ParamField path="security" type='"deny" | "allowlist" | "full"'>
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- `deny` - block all host exec requests.
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- `allowlist` - allow only allowlisted commands.
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- `full` - allow everything (equivalent to elevated).
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</ParamField>
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### `exec.ask`
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<ParamField path="ask" type='"off" | "on-miss" | "always"'>
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- `off` - never prompt.
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- `on-miss` - prompt only when the allowlist does not match.
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- `always` - prompt on every command. `allow-always` durable trust does **not** suppress prompts when effective ask mode is `always`.
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</ParamField>
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### `askFallback`
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<ParamField path="askFallback" type='"deny" | "allowlist" | "full"'>
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Resolution when a prompt is required but no UI is reachable.
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- `deny` - block.
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- `allowlist` - allow only if allowlist matches.
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- `full` - allow.
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</ParamField>
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### `tools.exec.strictInlineEval`
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<ParamField path="strictInlineEval" type="boolean">
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When `true`, OpenClaw treats inline code-eval forms as approval-only
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even if the interpreter binary itself is allowlisted. Defense-in-depth
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for interpreter loaders that do not map cleanly to one stable file
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operand.
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</ParamField>
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Examples that strict mode catches:
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- `python -c`
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- `node -e`, `node --eval`, `node -p`
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- `ruby -e`
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- `perl -e`, `perl -E`
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- `php -r`
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- `lua -e`
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- `osascript -e`
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In strict mode these commands still need explicit approval, and
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`allow-always` does not persist new allowlist entries for them
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automatically.
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### `tools.exec.commandHighlighting`
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<ParamField path="commandHighlighting" type="boolean" default="false">
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Controls only presentation in exec approval prompts. When enabled,
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OpenClaw may attach parser-derived command spans so Web approval
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prompts can highlight command tokens. Set it to `true` to enable
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command text highlighting.
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</ParamField>
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This setting does **not** change `security`, `ask`, allowlist matching,
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strict inline-eval behavior, approval forwarding, or command execution.
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It can be set globally under `tools.exec.commandHighlighting` or per
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agent under `agents.list[].tools.exec.commandHighlighting`.
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## YOLO mode (no-approval)
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If you want host exec to run without approval prompts, you must open
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**both** policy layers - requested exec policy in OpenClaw config
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(`tools.exec.*`) **and** host-local approvals policy in
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`~/.openclaw/exec-approvals.json`.
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YOLO is the default host behavior unless you tighten it explicitly:
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| Layer | YOLO setting |
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| --------------------- | -------------------------- |
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| `tools.exec.security` | `full` on `gateway`/`node` |
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| `tools.exec.ask` | `off` |
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| Host `askFallback` | `full` |
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<Warning>
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**Important distinctions:**
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- `tools.exec.host=auto` chooses **where** exec runs: sandbox when available, otherwise gateway.
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- YOLO chooses **how** host exec is approved: `security=full` plus `ask=off`.
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- In YOLO mode, OpenClaw does **not** add a separate heuristic command-obfuscation approval gate or script-preflight rejection layer on top of the configured host exec policy.
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- `auto` does not make gateway routing a free override from a sandboxed session. A per-call `host=node` request is allowed from `auto`; `host=gateway` is only allowed from `auto` when no sandbox runtime is active. For a stable non-auto default, set `tools.exec.host` or use `/exec host=...` explicitly.
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</Warning>
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CLI-backed providers that expose their own noninteractive permission mode
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can follow this policy. Claude CLI adds
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`--permission-mode bypassPermissions` when OpenClaw's effective exec
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policy is YOLO. For OpenClaw-managed Claude live sessions, OpenClaw's
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effective exec policy is authoritative over Claude's native permission mode:
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YOLO normalizes live launches to `--permission-mode bypassPermissions`, and
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restrictive effective exec policy normalizes live launches to
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`--permission-mode default`, even if raw Claude backend args specify another
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mode.
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If you want a more conservative setup, tighten OpenClaw exec policy back to
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`allowlist` / `on-miss` or `deny`.
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### Persistent gateway-host "never prompt" setup
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<Steps>
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<Step title="Set the requested config policy">
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```bash
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openclaw config set tools.exec.host gateway
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openclaw config set tools.exec.security full
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openclaw config set tools.exec.ask off
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openclaw gateway restart
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```
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</Step>
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<Step title="Match the host approvals file">
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```bash
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openclaw approvals set --stdin <<'EOF'
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{
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version: 1,
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defaults: {
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security: "full",
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ask: "off",
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askFallback: "full"
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}
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}
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EOF
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```
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</Step>
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</Steps>
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### Local shortcut
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```bash
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openclaw exec-policy preset yolo
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```
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That local shortcut updates both:
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- Local `tools.exec.host/security/ask`.
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- Local `~/.openclaw/exec-approvals.json` defaults.
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It is intentionally local-only. To change gateway-host or node-host
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approvals remotely, use `openclaw approvals set --gateway` or
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`openclaw approvals set --node <id|name|ip>`.
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### Node host
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For a node host, apply the same approvals file on that node instead:
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```bash
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openclaw approvals set --node <id|name|ip> --stdin <<'EOF'
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{
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version: 1,
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defaults: {
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security: "full",
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ask: "off",
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askFallback: "full"
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}
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}
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EOF
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```
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<Note>
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**Local-only limitations:**
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- `openclaw exec-policy` does not synchronize node approvals.
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- `openclaw exec-policy set --host node` is rejected.
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- Node exec approvals are fetched from the node at runtime, so node-targeted updates must use `openclaw approvals --node ...`.
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</Note>
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### Session-only shortcut
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- `/exec security=full ask=off` changes only the current session.
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- `/elevated full` is a break-glass shortcut that also skips exec approvals for that session.
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If the host approvals file stays stricter than config, the stricter host
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policy still wins.
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## Allowlist (per agent)
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Allowlists are **per agent**. If multiple agents exist, switch which agent
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you are editing in the macOS app. Patterns are glob matches.
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Patterns can be resolved binary path globs or bare command-name globs.
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Bare names match only commands invoked through `PATH`, so `rg` can match
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`/opt/homebrew/bin/rg` when the command is `rg`, but **not** `./rg` or
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`/tmp/rg`. Use a path glob when you want to trust one specific binary
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location.
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Legacy `agents.default` entries are migrated to `agents.main` on load.
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Shell chains such as `echo ok && pwd` still need every top-level segment
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to satisfy allowlist rules.
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Examples:
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- `rg`
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- `~/Projects/**/bin/peekaboo`
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- `~/.local/bin/*`
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- `/opt/homebrew/bin/rg`
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### Restricting arguments with argPattern
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Add `argPattern` when an allowlist entry should match a binary and a
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specific argument shape. OpenClaw evaluates the regular expression
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against the parsed command arguments, excluding the executable token
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(`argv[0]`). For hand-authored entries, arguments are joined with a
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single space, so anchor the pattern when you need an exact match.
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```json
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{
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"version": 1,
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"agents": {
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"main": {
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"allowlist": [
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{
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"pattern": "python3",
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"argPattern": "^safe\\.py$"
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}
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]
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}
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}
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}
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```
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That entry allows `python3 safe.py`; `python3 other.py` is an allowlist
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miss. If a path-only entry for the same binary is also present, unmatched
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arguments can still fall back to that path-only entry. Omit the path-only
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entry when the goal is to restrict the binary to the declared arguments.
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Entries saved by approval flows can use an internal separator format for
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exact argv matching. Prefer the UI or approval flow to regenerate those
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entries instead of hand-editing the encoded value. If OpenClaw cannot
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parse argv for a command segment, entries with `argPattern` do not match.
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Each allowlist entry supports:
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| Field | Meaning |
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| ------------------ | ------------------------------------------------------------- |
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| `pattern` | Resolved binary path glob or bare command-name glob |
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| `argPattern` | Optional argv regex; omitted entries are path-only |
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| `id` | Stable UUID used for UI identity |
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| `source` | Entry source, such as `allow-always` |
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| `commandText` | Command text captured when an approval flow created the entry |
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| `lastUsedAt` | Last-used timestamp |
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| `lastUsedCommand` | Last command that matched |
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| `lastResolvedPath` | Last resolved binary path |
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## Auto-allow skill CLIs
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When **Auto-allow skill CLIs** is enabled, executables referenced by
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known skills are treated as allowlisted on nodes (macOS node or headless
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node host). This uses `skills.bins` over the Gateway RPC to fetch the
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skill bin list. Disable this if you want strict manual allowlists.
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<Warning>
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- This is an **implicit convenience allowlist**, separate from manual path allowlist entries.
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- It is intended for trusted operator environments where Gateway and node are in the same trust boundary.
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- If you require strict explicit trust, keep `autoAllowSkills: false` and use manual path allowlist entries only.
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</Warning>
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## Safe bins and approval forwarding
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For safe bins (the stdin-only fast-path), interpreter binding details, and
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how to forward approval prompts to Slack/Discord/Telegram (or run them as
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native approval clients), see
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[Exec approvals - advanced](/tools/exec-approvals-advanced).
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## Control UI editing
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Use the **Control UI → Nodes → Exec approvals** card to edit defaults,
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per-agent overrides, and allowlists. Pick a scope (Defaults or an agent),
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tweak the policy, add/remove allowlist patterns, then **Save**. The UI
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shows last-used metadata per pattern so you can keep the list tidy.
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The target selector chooses **Gateway** (local approvals) or a **Node**.
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Nodes must advertise `system.execApprovals.get/set` (macOS app or
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headless node host). If a node does not advertise exec approvals yet,
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edit its local `~/.openclaw/exec-approvals.json` directly.
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CLI: `openclaw approvals` supports gateway or node editing - see
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[Approvals CLI](/cli/approvals).
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## Approval flow
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When a prompt is required, the gateway broadcasts
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`exec.approval.requested` to operator clients. The Control UI and macOS
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app resolve it via `exec.approval.resolve`, then the gateway forwards the
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approved request to the node host.
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For `host=node`, approval requests include a canonical `systemRunPlan`
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payload. The gateway uses that plan as the authoritative
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command/cwd/session context when forwarding approved `system.run`
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requests.
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That matters for async approval latency:
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- The node exec path prepares one canonical plan up front.
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- The approval record stores that plan and its binding metadata.
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- Once approved, the final forwarded `system.run` call reuses the stored plan instead of trusting later caller edits.
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- If the caller changes `command`, `rawCommand`, `cwd`, `agentId`, or `sessionKey` after the approval request was created, the gateway rejects the forwarded run as an approval mismatch.
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## System events
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Exec lifecycle is surfaced as system messages:
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- `Exec running` (only if the command exceeds the running notice threshold).
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- `Exec finished`.
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These are posted to the agent's session after the node reports the event.
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Denied exec approvals are terminal: OpenClaw can report the denial to the
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operator or direct chat route, but it does not post `Exec denied` back into the
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agent session or wake agent work.
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Gateway-host exec approvals emit the same lifecycle events when the
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command finishes (and optionally when running longer than the threshold).
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Approval-gated execs reuse the approval id as the `runId` in these
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messages for easy correlation.
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## Denied approval behavior
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When an async exec approval is denied, OpenClaw treats the request as terminal.
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It can show a concise denial to the operator or direct chat route, but it does
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not send denial guidance back through the agent session. That keeps a denied
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command from becoming another model turn and prevents the agent from reusing
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output from an earlier run of the same command.
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## Implications
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- **`full`** is powerful; prefer allowlists when possible.
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- **`ask`** keeps you in the loop while still allowing fast approvals.
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- Per-agent allowlists prevent one agent's approvals from leaking into others.
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- Approvals only apply to host exec requests from **authorized senders**. Unauthorized senders cannot issue `/exec`.
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- `/exec security=full` is a session-level convenience for authorized operators and skips approvals by design. To hard-block host exec, set approvals security to `deny` or deny the `exec` tool via tool policy.
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## Related
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<CardGroup cols={2}>
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<Card title="Exec approvals - advanced" href="/tools/exec-approvals-advanced" icon="gear">
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Safe bins, interpreter binding, and approval forwarding to chat.
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</Card>
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<Card title="Exec tool" href="/tools/exec" icon="terminal">
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Shell command execution tool.
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</Card>
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<Card title="Elevated mode" href="/tools/elevated" icon="shield-exclamation">
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Break-glass path that also skips approvals.
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</Card>
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<Card title="Sandboxing" href="/gateway/sandboxing" icon="box">
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Sandbox modes and workspace access.
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</Card>
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<Card title="Security" href="/gateway/security" icon="lock">
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Security model and hardening.
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</Card>
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<Card title="Sandbox vs tool policy vs elevated" href="/gateway/sandbox-vs-tool-policy-vs-elevated" icon="sliders">
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When to reach for each control.
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</Card>
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<Card title="Skills" href="/tools/skills" icon="sparkles">
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Skill-backed auto-allow behavior.
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</Card>
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</CardGroup>
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