netgear.com WebMCP audit

Rescan
audited Aug 28, 2026in 8s
66/ 100

3 tools registered. Strongest in WebMCP use, weakest in human experience.

WebMCP use84
Usefulness80
Human experience0
about:blank

No agent run recorded yet.

No steps recorded

Tools

/
search-products: fail

search-products

Search the NETGEAR product catalog by keyword. Returns products with name, price, URL, image, and availability.Answers a question. Declared read only.
pagehttps://www.netgear.com/
implementation
viaimperative
entry pointnavigator
registered after1282ms
executepresent
api surface
queryrequired
maxResultsoptional
annotations
read onlytrue
destructivenot declared
idempotenttrue
open worldnot declared
untrusted contentnot declared
titlenot declared
2 findings
failCanonical entry point
0 / 4
Every tool registers through the deprecated navigator.modelContext alias; move them to document.modelContext before the alias is removed.
fix
// Use the canonical entry point - navigator.modelContext is deprecated.
document.modelContext.provideContext({ tools: [/* ... */] });
warningHuman parity
0 / 8
3 of 3 tools run through the JavaScript API with no visible counterpart, so the person co-browsing cannot see what the agent is offered. Declarative forms (or at least a title annotation) close the gap.
search-products, get-categories, get-cart
fix
<!-- Give the tool a visible counterpart: a declarative form is one the person can see and use too. -->
<form toolname="search-products" tooldescription="...">
  <!-- the same action, as UI -->
</form>
tool json
{
  "name": "search-products",
  "description": "Search the NETGEAR product catalog by keyword. Returns products with name, price, URL, image, and availability.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "query": {
        "type": "string",
        "description": "Search keywords (e.g. \"mesh wifi\", \"gigabit switch\")"
      },
      "maxResults": {
        "type": "integer",
        "description": "Max results to return (1-50, default 10)",
        "minimum": 1,
        "maximum": 50
      }
    },
    "required": [
      "query"
    ]
  },
  "annotations": {
    "readOnlyHint": true,
    "idempotentHint": true
  }
}
Showing search-products

Findings

WebMCP use

84 / 100 · weight 50
passTools registered
4 / 4
3 tools registered across 1 page. Capture caveat (not scored against the site): the page replaced modelContext on navigator, so imperative tools may be under-reported
passReal-browser eligible
8 / 8
A real browser exposes modelContext natively on this page, so the tools registered here are visible to an agent today.
warningRegistration timing
2 / 4
The slowest tool took 1282.5ms to register, past the 1000ms an agent reading the registry at first paint would wait for.
toolget-cart
get-cart: registered at 1282.5ms
fix
// Register tools as soon as they're ready, not behind a deferred/async chunk.
document.modelContext.provideContext({ tools: [/* ... */] });
failCanonical entry point
0 / 4
Every tool registers through the deprecated navigator.modelContext alias; move them to document.modelContext before the alias is removed.
toolsearch-products
fix
// Use the canonical entry point - navigator.modelContext is deprecated.
document.modelContext.provideContext({ tools: [/* ... */] });
passSchema validity
5 / 5
All 3 tools declare a structurally valid object input schema.
passSchema quality
4 / 4
All 3 tool schemas describe their parameters and stay within Chrome's size guidance.
passStub detection
5 / 5
All 3 tools declare an execute handler.
passAnnotations present
4 / 4
All 3 tools declare a readOnlyHint, so an agent knows which calls change state.
passAnnotation mismatch
3 / 3
No tool claims to be read-only while its name says it writes (3 declared hints checked).
not applicableUntrusted content hint
0 / 2
No tool's contract suggests it returns text written by somebody other than the site, so there is nothing to flag as untrusted.
passRegistration errors
2 / 2
No tool registration threw during the capture. Capture caveat (not scored against the site): the page replaced modelContext on navigator, so imperative tools may be under-reported
warningToolchange coherence
1 / 2
3 tools were registered but the page never dispatched a toolchange event, so an agent subscribed to registry updates never learns they exist.
fix
document.modelContext.dispatchEvent(new Event("toolchange"));
not applicableInjection surface
0 / 3
The injection-surface model hop returned no usable result, so tool contracts were not reviewed for injection surface.

Usefulness

80 / 100 · weight 30
passNaming quality
2 / 2
All 3 tool names are consistent, verb-led, and within Chrome's size guidance.
not applicableDescription quality
0 / 6
The description-quality model hop returned no usable result, so descriptions were not rated.
not applicableTool selection
0 / 14
The tool-selection model hop returned no usable result.
warningCoverage vs. site type
6 / 8
The tool set covers 3 of the 4 things an agent needs on a commerce site; it cannot start checkout or place an order.

Human experience

0 / 100 · weight 20
warningHuman parity
0 / 8
3 of 3 tools run through the JavaScript API with no visible counterpart, so the person co-browsing cannot see what the agent is offered. Declarative forms (or at least a title annotation) close the gap.
toolsearch-products
search-products, get-categories, get-cart
fix
<!-- Give the tool a visible counterpart: a declarative form is one the person can see and use too. -->
<form toolname="search-products" tooldescription="...">
  <!-- the same action, as UI -->
</form>
not applicablePage experience
0 / 12
The page-experience model hop returned no usable result, so the page was not graded.

Tool selection

The tool-selection model hop returned no usable result.
how this was captured
chrome
148.0.7778.96
capture shim
v1
spec snapshot
2026-08
mode
fast
pages
1
tools
3
run time
8s
finished
Aug 28, 2026