# browser_localstorage_delete

A destructive tool on the Playwright MCP server.

Agent View of the PolicyLayer registry record for `browser_localstorage_delete`. HTML page: https://policylayer.com/tools/hanato238-playwright-mcp/browser-localstorage-delete

## Facts

- Tool: `browser_localstorage_delete`
- Server: Playwright (`hanato238/playwright-mcp`) — https://policylayer.com/tools/hanato238-playwright-mcp.md
- Homepage: https://github.com/Hanato238/playwright-mcp
- Risk category: Destructive (Critical risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Hidden

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "browser_localstorage_delete",
    "arguments": {}
  }
}
```

## Why browser_localstorage_delete is rated Critical

This tool deletes client-side storage data (localStorage) in the browser, which cannot be undone. While the description is empty, the naming convention ('_delete') and the Playwright/browser automation context make the destructive intent clear. The high confidence is slightly reduced due to lack of descriptive detail, but the name alone justifies the Destructive category over Execute.

From the tool's own definition: "Tool name 'browser_localstorage_delete' combined with server context (browser automation via Playwright) indicates irreversible deletion of localStorage data. The 'delete' verb is explicit, and localStorage operations are destructive by nature."

## Use case

AI agents call browser_localstorage_delete to permanently remove resources in Playwright, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

## Recommended policy (PolicyLayer)

Verdict: **Hidden**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Playwright:

```json
{
  "version": "1",
  "default": "deny",
  "hide": [
    "browser_localstorage_delete"
  ]
}
```

## Other tools on Playwright (65)

- `browser_cookie_clear` — Destructive — https://policylayer.com/tools/hanato238-playwright-mcp/browser-cookie-clear.md
- `browser_cookie_delete` — Destructive — https://policylayer.com/tools/hanato238-playwright-mcp/browser-cookie-delete.md
- `browser_localstorage_clear` — Destructive — https://policylayer.com/tools/hanato238-playwright-mcp/browser-localstorage-clear.md
- `browser_sessionstorage_clear` — Destructive — https://policylayer.com/tools/hanato238-playwright-mcp/browser-sessionstorage-clear.md
- `browser_sessionstorage_delete` — Destructive — https://policylayer.com/tools/hanato238-playwright-mcp/browser-sessionstorage-delete.md
- `browser_click` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-click.md
- `browser_close` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-close.md
- `browser_drag` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-drag.md
- `browser_drop` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-drop.md
- `browser_evaluate` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-evaluate.md
- `browser_handle_dialog` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-handle-dialog.md
- `browser_hide_highlight` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-hide-highlight.md
- `browser_hover` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-hover.md
- `browser_mouse_click_xy` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-mouse-click-xy.md
- `browser_mouse_down` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-mouse-down.md
- `browser_mouse_drag_xy` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-mouse-drag-xy.md
- `browser_mouse_move_xy` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-mouse-move-xy.md
- `browser_mouse_up` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-mouse-up.md
- `browser_mouse_wheel` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-mouse-wheel.md
- `browser_navigate` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-navigate.md
- `browser_navigate_back` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-navigate-back.md
- `browser_network_request` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-network-request.md
- `browser_network_state_set` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-network-state-set.md
- `browser_pdf_save` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-pdf-save.md
- `browser_press_key` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-press-key.md
- `browser_resize` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-resize.md
- `browser_resume` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-resume.md
- `browser_route` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-route.md
- `browser_run_code_unsafe` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-run-code-unsafe.md
- `browser_select_option` — Execute — https://policylayer.com/tools/hanato238-playwright-mcp/browser-select-option.md
- …and 35 more: https://policylayer.com/tools/hanato238-playwright-mcp.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=hanato238-playwright-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/hanato238-playwright-mcp