heatingplus.ro WebMCP audit

Rescan
audited Aug 28, 2026in 7s
53/ 100

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

WebMCP use64
Usefulness60
Human experience13
about:blank

No agent run recorded yet.

No steps recorded

Tools

/
search_products: fail

search_products

Cauta produse publice in catalogul Heating Plus dupa denumire, marca, model sau cod. Foloseste acest tool pentru recomandari si verificarea preturilor afisate; nu modifica magazinul sau cosul.Takes an action on the site.
pagehttps://heatingplus.ro/
implementation
viaimperative
entry pointdocument
registered after1186ms
executepresent
api surface
queryrequired
limitoptional
annotations
read onlynot declared
destructivenot declared
idempotentnot declared
open worldnot declared
untrusted contentnot declared
titlenot declared
2 findings
failAnnotations present
0 / 4
7 of 7 tools declare no readOnlyHint, so an agent cannot tell a read from a write without guessing from the name.
search_products, get_product_details, browse_category, compare_products, estimate_heating_need
fix
{
  name: "search_products",
  annotations: { readOnlyHint: true, destructiveHint: false, idempotentHint: true }
}
warningHuman parity
1 / 8
7 of 8 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_product_details, browse_category, compare_products, estimate_heating_need
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": "Cauta produse publice in catalogul Heating Plus dupa denumire, marca, model sau cod. Foloseste acest tool pentru recomandari si verificarea preturilor afisate; nu modifica magazinul sau cosul.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "query": {
        "type": "string",
        "minLength": 2,
        "maxLength": 100,
        "description": "Denumire, marca, model, cod sau expresie de cautare pentru produs."
      },
      "limit": {
        "type": "integer",
        "minimum": 1,
        "maximum": 10,
        "default": 6,
        "description": "Numarul maxim de rezultate returnate."
      }
    },
    "required": [
      "query"
    ],
    "additionalProperties": false
  },
  "annotations": {}
}
Showing search_products

Findings

WebMCP use

64 / 100 · weight 50
passTools registered
4 / 4
7 imperative tools and 1 declarative form registered across 1 page.
failReal-browser eligible
0 / 8
The page's code registers these tools, but a real visitor's browser does not get them yet: WebMCP needs a native modelContext or a current origin trial token, and this page has neither. The page does carry an origin-trial token, but it does not grant WebMCP on this origin. The 1 declarative form tool on the page stay usable regardless.
warningRegistration timing
2 / 4
The slowest tool took 1186.2000000476837ms to register, past the 1000ms an agent reading the registry at first paint would wait for. 1 further tool carried no measurable registration time.
toolget_site_policy
get_site_policy: registered at 1186.2000000476837ms
fix
// Register tools as soon as they're ready, not behind a deferred/async chunk.
document.modelContext.provideContext({ tools: [/* ... */] });
passCanonical entry point
4 / 4
All 7 tools register on the canonical document.modelContext entry point.
passSchema validity
5 / 5
All 7 tools declare a structurally valid object input schema.
passSchema quality
4 / 4
All 8 tool schemas describe their parameters and stay within Chrome's size guidance.
passStub detection
5 / 5
All 7 tools declare an execute handler.
failAnnotations present
0 / 4
7 of 7 tools declare no readOnlyHint, so an agent cannot tell a read from a write without guessing from the name.
toolsearch_products
search_products, get_product_details, browse_category, compare_products, estimate_heating_need
fix
{
  name: "search_products",
  annotations: { readOnlyHint: true, destructiveHint: false, idempotentHint: true }
}
not applicableAnnotation mismatch
0 / 3
No tool declares a readOnlyHint, so there is no safety claim to contradict.
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.
warningToolchange coherence
1 / 2
7 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

60 / 100 · weight 30
passNaming quality
2 / 2
All 8 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
4 / 8
The tool set covers 2 of the 4 things an agent needs on a commerce site; it cannot add to or read the cart or start checkout or place an order.

Human experience

13 / 100 · weight 20
warningHuman parity
1 / 8
7 of 8 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_product_details, browse_category, compare_products, estimate_heating_need
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
8
run time
7s
finished
Aug 28, 2026