agentline.cloud WebMCP audit

Name: agentline.cloud WebMCP audit
Creator: ora

Rescan

audited Aug 28, 2026in 6s

28/ 100

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

WebMCP use48

Usefulness13

Human experience0

about:blank

No agent run recorded yet.

No steps recorded

Tools

get_pricing

Get AgentLine pricing details for AI voice calls, phone numbers, and SMS.Registered without an execute function, so calling it does nothing.

pagehttps://agentline.cloud/

implementation

viaimperative

entry pointdocument

registered after1005ms

executemissing

api surfaceTakes no parameters.

annotations

read onlynot declared

destructivenot declared

idempotentnot declared

open worldnot declared

untrusted contentnot declared

titlenot declared

3 findings

failStub detection

0 / 5

Every registered tool is a facade: none declares an execute handler, so an agent that calls one gets nothing back.

get_pricing, get_features, get_skill_file

fix

{
  name: "get_pricing",
  execute: async (args) => {
    // Perform the real action here - return live data, not a static placeholder.
    return result;
  }
}

failAnnotations present

0 / 4

3 of 3 tools declare no readOnlyHint, so an agent cannot tell a read from a write without guessing from the name.

get_pricing, get_features, get_skill_file

fix

{
  name: "get_pricing",
  annotations: { readOnlyHint: true, destructiveHint: false, idempotentHint: true }
}

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.

get_pricing, get_features, get_skill_file

fix

<!-- Give the tool a visible counterpart: a declarative form is one the person can see and use too. -->
<form toolname="get_pricing" tooldescription="...">
  <!-- the same action, as UI -->
</form>

tool json

{
  "name": "get_pricing",
  "description": "Get AgentLine pricing details for AI voice calls, phone numbers, and SMS.",
  "inputSchema": {
    "type": "object",
    "properties": {}
  },
  "annotations": {}
}

Findings

WebMCP use

48 / 100 · weight 50

warningTools registered

2 / 4

3 tools registered across 1 page, but not one of the 3 JavaScript tools declares an execute handler, so an agent finds them and can run none of them.

fix

document.modelContext.provideContext({
  tools: [{ name: "your_tool_name", description: "...", inputSchema: { type: "object", properties: {} }, execute: async (args) => { /* ... */ } }],
});

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.

warningRegistration timing

2 / 4

The slowest tool took 1005.0999999046326ms to register, past the 1000ms an agent reading the registry at first paint would wait for.

toolget_features

get_features: registered at 1005.0999999046326ms

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 3 tools register on the canonical document.modelContext entry point.

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.

failStub detection

0 / 5

Every registered tool is a facade: none declares an execute handler, so an agent that calls one gets nothing back.

toolget_pricing

get_pricing, get_features, get_skill_file

fix

{
  name: "get_pricing",
  execute: async (args) => {
    // Perform the real action here - return live data, not a static placeholder.
    return result;
  }
}

failAnnotations present

0 / 4

3 of 3 tools declare no readOnlyHint, so an agent cannot tell a read from a write without guessing from the name.

toolget_pricing

get_pricing, get_features, get_skill_file

fix

{
  name: "get_pricing",
  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

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

13 / 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.

failTool selection

0 / 14

Not one of the 3 registered tools can be called, so no intent an agent arrives with is servable regardless of which tool it picks.

not applicableCoverage vs. site type

0 / 8

This tool set does not place the site in a category with a known expected tool shape, so there is no coverage baseline to score it against.

Human experience

0 / 100 · weight 20

warningHuman parity

0 / 8

toolget_pricing

get_pricing, get_features, get_skill_file

fix

<!-- Give the tool a visible counterpart: a declarative form is one the person can see and use too. -->
<form toolname="get_pricing" 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: 6s
finished: Aug 28, 2026