# browser_cookie_set

A write tool on the Termux Browser Pilot MCP server.

Agent View of the PolicyLayer registry record for `browser_cookie_set`. HTML page: https://policylayer.com/tools/salviz-termux-browser-pilot/browser-cookie-set

## Facts

- Tool: `browser_cookie_set`
- Server: Termux Browser Pilot (`salviz/termux-browser-pilot`) — https://policylayer.com/tools/salviz-termux-browser-pilot.md
- Homepage: https://github.com/salviz/termux-browser-pilot
- Risk category: Write (Medium 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": "browser_cookie_set",
    "arguments": {}
  }
}
```

## Why browser_cookie_set is rated Medium

Setting cookies is a reversible write operation that modifies browser state. It could be misused to inject malicious cookies, impersonate users, or manipulate site behavior, but lacks the irreversibility of destructive operations or the financial impact of transactions. High severity due to potential authentication/session hijacking implications in an automated browser context.

From the tool's own definition: "Tool name 'browser_cookie_set' indicates cookie creation or modification. No description provided, but the context of browser automation and sibling tools like 'browser_auth_save' and 'browser_attr_set' establish this as a data modification operation."

## Use case

AI agents use browser_cookie_set to create or update resources in Termux Browser Pilot, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Termux Browser Pilot environment.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Termux Browser Pilot:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "browser_cookie_set": {
      "limits": [
        {
          "counter": "browser_cookie_set_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Termux Browser Pilot (147)

- `browser_auth_delete` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-auth-delete.md
- `browser_console_clear` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-console-clear.md
- `browser_cookies_clear` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-cookies-clear.md
- `browser_dialog_clear` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-dialog-clear.md
- `browser_events_clear` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-events-clear.md
- `browser_headers_clear` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-headers-clear.md
- `browser_mock_clear` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-mock-clear.md
- `browser_mutations_clear` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-mutations-clear.md
- `browser_network_clear` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-network-clear.md
- `browser_profile_delete` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-profile-delete.md
- `browser_responses_clear` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-responses-clear.md
- `browser_session_delete` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-session-delete.md
- `browser_snapshot_delete` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-snapshot-delete.md
- `browser_storage_clear` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-storage-clear.md
- `browser_storage_remove` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-storage-remove.md
- `browser_tab_close` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-tab-close.md
- `browser_unblock` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-unblock.md
- `browser_window_close` — Destructive — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-window-close.md
- `browser_attr_remove` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-attr-remove.md
- `browser_attr_set` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-attr-set.md
- `browser_auth_load` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-auth-load.md
- `browser_back` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-back.md
- `browser_block` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-block.md
- `browser_check` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-check.md
- `browser_click` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-click.md
- `browser_console_start` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-console-start.md
- `browser_console_stop` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-console-stop.md
- `browser_cookies_load` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-cookies-load.md
- `browser_css_inject` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-css-inject.md
- `browser_css_remove` — Execute — https://policylayer.com/tools/salviz-termux-browser-pilot/browser-css-remove.md
- …and 117 more: https://policylayer.com/tools/salviz-termux-browser-pilot.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=salviz-termux-browser-pilot · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/salviz-termux-browser-pilot