# browser_get_localstorage

A read tool on the Looking Glass MCP server.

Agent View of the PolicyLayer registry record for `browser_get_localstorage`. HTML page: https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-get-localstorage

## Facts

- Tool: `browser_get_localstorage`
- Server: Looking Glass (`looking-glass-mcp`) — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp.md
- Install: `npx -y looking-glass-mcp`
- Homepage: https://github.com/Sahib-Sawhney-WH/LookingGlass
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 1
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `key` | string | no | Specific key to retrieve (or omit for all) |

Parameters from the server's own tool schema.

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

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

## Why browser_get_localstorage is rated Low

localStorage retrieval is a read operation that accesses stored browser data without side effects. Although the description is empty (lowering confidence slightly), the name clearly indicates data retrieval rather than write, execute, or destructive operations. Low severity because localStorage typically contains non-sensitive application state, though confidence is moderated due to lack of explicit documentation.

From the tool's own definition: "Tool name 'browser_get_localstorage' indicates retrieval of localStorage data from the browser. The 'get' prefix strongly suggests a read operation that queries existing data without modification."

## Use case

AI agents call browser_get_localstorage to retrieve information from Looking Glass without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

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

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "browser_get_localstorage": {}
  }
}
```

## Other tools on Looking Glass (70)

- `browser_clean_slate` — Destructive — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-clean-slate.md
- `browser_clear_history` — Destructive — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-clear-history.md
- `browser_clear_mocks` — Destructive — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-clear-mocks.md
- `browser_clear_storage` — Destructive — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-clear-storage.md
- `browser_close` — Destructive — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-close.md
- `session_end` — Destructive — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/session-end.md
- `test_chaos_clear` — Destructive — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/test-chaos-clear.md
- `vault_delete` — Destructive — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/vault-delete.md
- `browser_click` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-click.md
- `browser_drag` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-drag.md
- `browser_evaluate` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-evaluate.md
- `browser_explore` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-explore.md
- `browser_fill_and_submit` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-fill-and-submit.md
- `browser_go` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-go.md
- `browser_go_back` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-go-back.md
- `browser_go_forward` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-go-forward.md
- `browser_hover` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-hover.md
- `browser_login` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-login.md
- `browser_mock_route` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-mock-route.md
- `browser_navigate` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-navigate.md
- `browser_performance_audit` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-performance-audit.md
- `browser_press_key` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-press-key.md
- `browser_recover` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-recover.md
- `browser_resolve_element` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-resolve-element.md
- `browser_scroll` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-scroll.md
- `browser_select_option` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-select-option.md
- `browser_smart_click` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-smart-click.md
- `browser_tab_new` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-tab-new.md
- `browser_tab_select` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-tab-select.md
- `browser_type` — Execute — https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-mcp/browser-type.md
- …and 40 more: https://policylayer.com/tools/io-github-sahib-sawhney-wh-looking-glass-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=io-github-sahib-sawhney-wh-looking-glass-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-sahib-sawhney-wh-looking-glass-mcp