# get_storage_key_for_frame

Get the storage key for a specific frame. Args: frame_id: Frame ID to get storage key for Returns: Storage key for the frame

Agent View of the PolicyLayer registry record for `get_storage_key_for_frame`. HTML page: https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/get-storage-key-for-frame

## Facts

- Tool: `get_storage_key_for_frame`
- Server: Chrome Devtools (`benjaminr/chrome-devtools-mcp`) — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp.md
- Homepage: https://github.com/benjaminr/chrome-devtools-mcp
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

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

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

## Why get_storage_key_for_frame is rated Low

This tool retrieves metadata about a frame's storage key without creating, modifying, deleting, or executing any operations. It has no side effects and returns information only. Despite being part of a DevTools suite with other tools capable of destructive operations (clear_all_cookies, clear_storage_for_origin), this specific tool is purely informational and falls squarely within the Read category.

From the tool's own definition: "Tool description states 'Get the storage key for a specific frame' with a return value of 'Storage key for the frame'. The verb 'Get' and the action of retrieving/querying a storage key without modification indicates a read-only operation."

## Use case

AI agents call get_storage_key_for_frame to retrieve information from Chrome Devtools 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 Chrome Devtools:

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

## Other tools on Chrome Devtools (46)

- `clear_all_cookies` — Destructive — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/clear-all-cookies.md
- `clear_storage_for_origin` — Destructive — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/clear-storage-for-origin.md
- `clear_console` — Execute — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/clear-console.md
- `connect_to_browser` — Execute — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/connect-to-browser.md
- `evaluate_in_all_frames` — Execute — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/evaluate-in-all-frames.md
- `execute_javascript` — Execute — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/execute-javascript.md
- `focus_element` — Execute — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/focus-element.md
- `inspect_console_object` — Execute — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/inspect-console-object.md
- `navigate_to_url` — Execute — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/navigate-to-url.md
- `override_storage_quota` — Execute — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/override-storage-quota.md
- `start_chrome` — Execute — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/start-chrome.md
- `start_chrome_and_connect` — Execute — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/start-chrome-and-connect.md
- `start_css_coverage_tracking` — Execute — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/start-css-coverage-tracking.md
- `track_indexeddb` — Execute — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/track-indexeddb.md
- `disconnect_from_browser` — Other — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/disconnect-from-browser.md
- `collect_css_class_names` — Read — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/collect-css-class-names.md
- `describe_element` — Read — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/describe-element.md
- `get_all_cookies` — Read — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/get-all-cookies.md
- `get_background_colors` — Read — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/get-background-colors.md
- `get_computed_styles` — Read — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/get-computed-styles.md
- `get_connection_status` — Read — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/get-connection-status.md
- `get_console_error_summary` — Read — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/get-console-error-summary.md
- `get_console_logs` — Read — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/get-console-logs.md
- `get_cookies` — Read — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/get-cookies.md
- `get_document` — Read — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/get-document.md
- `get_element_at_position` — Read — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/get-element-at-position.md
- `get_element_attributes` — Read — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/get-element-attributes.md
- `get_element_box_model` — Read — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/get-element-box-model.md
- `get_element_outer_html` — Read — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/get-element-outer-html.md
- `get_inline_styles` — Read — https://policylayer.com/tools/benjaminr-chrome-devtools-mcp/get-inline-styles.md
- …and 16 more: https://policylayer.com/tools/benjaminr-chrome-devtools-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=benjaminr-chrome-devtools-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/benjaminr-chrome-devtools-mcp