# wavexis_perf_css_coverage

Get CSS code coverage.

Agent View of the PolicyLayer registry record for `wavexis_perf_css_coverage`. HTML page: https://policylayer.com/tools/wavexis-mcp/wavexis-perf-css-coverage

## Facts

- Tool: `wavexis_perf_css_coverage`
- 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_perf_css_coverage",
    "arguments": {}
  }
}
```

## Why wavexis_perf_css_coverage is rated Low

This tool queries performance metrics (CSS code coverage) from the browser's developer tools API. It retrieves static analysis data about which CSS rules are used vs. unused. No code execution, no state modification, no destructive actions, no financial operations. Pure read access to performance telemetry. Confidence is high because the description is clear and unambiguous.

From the tool's own definition: "Tool name contains 'get' semantic (retrieve CSS coverage data). Description states 'Get CSS code coverage' — a data retrieval operation with no modification, deletion, or execution side effects."

## Use case

AI agents call wavexis_perf_css_coverage 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_perf_css_coverage": {}
  }
}
```

## 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`

---

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