# wavexis_sessionstorage_get

Get a sessionStorage value by key.

Agent View of the PolicyLayer registry record for `wavexis_sessionstorage_get`. HTML page: https://policylayer.com/tools/wavexis-mcp/wavexis-sessionstorage-get

## Facts

- Tool: `wavexis_sessionstorage_get`
- Server: Wavexis (`MathiasPaulenko/wavexis-mcp`) — https://policylayer.com/tools/wavexis-mcp.md
- Homepage: https://github.com/MathiasPaulenko/wavexis-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": "wavexis_sessionstorage_get",
    "arguments": {}
  }
}
```

## Why wavexis_sessionstorage_get is rated Low

This tool retrieves client-side session storage data without modifying or deleting it. SessionStorage is a read-only query operation with no side effects. Blast radius is minimal: an attacker gains visibility into session data (potentially sensitive, e.g., tokens or user state) but cannot modify it, delete it, or trigger actions. Classified as Read with low severity.

From the tool's own definition: "Tool name and description indicate retrieval of sessionStorage data: 'Get a sessionStorage value by key' — no mutation, deletion, or side effects."

## Use case

AI agents call wavexis_sessionstorage_get to retrieve information from Wavexis 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 Wavexis:

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

## Other tools on Wavexis (194)

- `wavexis_cache_storage_delete` — Destructive — https://policylayer.com/tools/wavexis-mcp/wavexis-cache-storage-delete.md
- `wavexis_cookies_clear` — Destructive — https://policylayer.com/tools/wavexis-mcp/wavexis-cookies-clear.md
- `wavexis_cookies_delete` — Destructive — https://policylayer.com/tools/wavexis-mcp/wavexis-cookies-delete.md
- `wavexis_dom_remove` — Destructive — https://policylayer.com/tools/wavexis-mcp/wavexis-dom-remove.md
- `wavexis_extension_uninstall` — Destructive — https://policylayer.com/tools/wavexis-mcp/wavexis-extension-uninstall.md
- `wavexis_indexeddb_clear` — Destructive — https://policylayer.com/tools/wavexis-mcp/wavexis-indexeddb-clear.md
- `wavexis_localstorage_clear` — Destructive — https://policylayer.com/tools/wavexis-mcp/wavexis-localstorage-clear.md
- `wavexis_localstorage_delete` — Destructive — https://policylayer.com/tools/wavexis-mcp/wavexis-localstorage-delete.md
- `wavexis_overlay_clear` — Destructive — https://policylayer.com/tools/wavexis-mcp/wavexis-overlay-clear.md
- `wavexis_reset_permissions` — Destructive — https://policylayer.com/tools/wavexis-mcp/wavexis-reset-permissions.md
- `wavexis_sessionstorage_clear` — Destructive — https://policylayer.com/tools/wavexis-mcp/wavexis-sessionstorage-clear.md
- `wavexis_sessionstorage_delete` — Destructive — https://policylayer.com/tools/wavexis-mcp/wavexis-sessionstorage-delete.md
- `wavexis_webauthn_remove_credential` — Destructive — https://policylayer.com/tools/wavexis-mcp/wavexis-webauthn-remove-credential.md
- `wavexis_act` — Execute — https://policylayer.com/tools/wavexis-mcp/wavexis-act.md
- `wavexis_activate_tab` — Execute — https://policylayer.com/tools/wavexis-mcp/wavexis-activate-tab.md
- `wavexis_animation_pause` — Execute — https://policylayer.com/tools/wavexis-mcp/wavexis-animation-pause.md
- `wavexis_animation_play` — Execute — https://policylayer.com/tools/wavexis-mcp/wavexis-animation-play.md
- `wavexis_animation_set_rate` — Execute — https://policylayer.com/tools/wavexis-mcp/wavexis-animation-set-rate.md
- `wavexis_back` — Execute — https://policylayer.com/tools/wavexis-mcp/wavexis-back.md
- `wavexis_block_requests` — Execute — https://policylayer.com/tools/wavexis-mcp/wavexis-block-requests.md
- `wavexis_bluetooth_adapter_state` — Execute — https://policylayer.com/tools/wavexis-mcp/wavexis-bluetooth-adapter-state.md
- `wavexis_bluetooth_device_connect` — Execute — https://policylayer.com/tools/wavexis-mcp/wavexis-bluetooth-device-connect.md
- `wavexis_bluetooth_device_disconnect` — Execute — https://policylayer.com/tools/wavexis-mcp/wavexis-bluetooth-device-disconnect.md
- `wavexis_browser_context_create` — Execute — https://policylayer.com/tools/wavexis-mcp/wavexis-browser-context-create.md
- `wavexis_cast_start` — Execute — https://policylayer.com/tools/wavexis-mcp/wavexis-cast-start.md
- `wavexis_cast_stop` — Execute — https://policylayer.com/tools/wavexis-mcp/wavexis-cast-stop.md
- `wavexis_check` — Execute — https://policylayer.com/tools/wavexis-mcp/wavexis-check.md
- `wavexis_click` — Execute — https://policylayer.com/tools/wavexis-mcp/wavexis-click.md
- `wavexis_crawl` — Execute — https://policylayer.com/tools/wavexis-mcp/wavexis-crawl.md
- `wavexis_debug_pause` — Execute — https://policylayer.com/tools/wavexis-mcp/wavexis-debug-pause.md
- …and 164 more: https://policylayer.com/tools/wavexis-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`

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