# run_javascript Execute JavaScript in a Safari tab. Use list_tabs to find window/tab indices. Returns the result as a string. Agent View of the PolicyLayer registry record for `run_javascript`. HTML page: https://policylayer.com/tools/io-github-heznpc-iconnect/run-javascript ## Facts - Tool: `run_javascript` - Server: Iconnect (`iconnect-mcp`) — https://policylayer.com/tools/io-github-heznpc-iconnect.md - Install: `npx -y iconnect-mcp` - Homepage: https://github.com/heznpc/iConnect - Risk category: Execute (High risk) - Registry record: grade F, identity unverified - Server rate-limited: no - Parameters: 0 - Recommended policy verdict: Rate-limited ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "run_javascript", "arguments": {} } } ``` ## Why run_javascript is rated High This tool directly executes code (JavaScript) in a browser context, which can access sensitive information, manipulate web pages, trigger network requests, and interact with user data. The high severity reflects that JavaScript execution in Safari can access localStorage, cookies, DOM state, and potentially exfiltrate data or perform unwanted actions on any website loaded in that tab. From the tool's own definition: "Tool explicitly states 'Execute JavaScript in a Safari tab' with ability to run code and return results." ## Use case AI agents invoke run_javascript to trigger actions in Iconnect. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started. ## Recommended policy (PolicyLayer) Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Iconnect: ```json { "version": "1", "default": "deny", "tools": { "run_javascript": { "limits": [ { "counter": "run_javascript_rate", "window": "minute", "max": 10, "scope": "grant" } ] } } } ``` ## Other tools on Iconnect (278) - `delete_contact` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-contact.md - `delete_event` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-event.md - `delete_note` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-note.md - `delete_photos` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-photos.md - `delete_playlist` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-playlist.md - `delete_reminder` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-reminder.md - `delete_reminder_list` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-reminder-list.md - `delete_shortcut` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/delete-shortcut.md - `memory_forget` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/memory-forget.md - `move_note` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/move-note.md - `remove_from_playlist` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/remove-from-playlist.md - `semantic_clear` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/semantic-clear.md - `spotlight_clear` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/spotlight-clear.md - `trash_file` — Destructive — https://policylayer.com/tools/io-github-heznpc-iconnect/trash-file.md - `activate_tab` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/activate-tab.md - `ai_agent` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/ai-agent.md - `ai_chat` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/ai-chat.md - `ai_plan_metrics` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/ai-plan-metrics.md - `connect_bluetooth` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/connect-bluetooth.md - `disconnect_bluetooth` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/disconnect-bluetooth.md - `edit_shortcut` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/edit-shortcut.md - `event_subscribe` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/event-subscribe.md - `generate_image` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/generate-image.md - `generate_text` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/generate-text.md - `gws_raw` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/gws-raw.md - `import_shortcut` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/import-shortcut.md - `keynote_start_slideshow` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/keynote-start-slideshow.md - `launch_app` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/launch-app.md - `local_llm_generate` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/local-llm-generate.md - `minimize_window` — Execute — https://policylayer.com/tools/io-github-heznpc-iconnect/minimize-window.md - …and 248 more: https://policylayer.com/tools/io-github-heznpc-iconnect.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-heznpc-iconnect · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-heznpc-iconnect