codaquest.com WebMCP audit

Name: codaquest.com WebMCP audit
Creator: ora

Rescan

audited Aug 28, 2026in 5s

53/ 100

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

WebMCP use67

Usefulness50

Human experience20

about:blank

No agent run recorded yet.

No steps recorded

Tools

codaquest_get_pricing

Read Codaquest's published prices for weekly coding courses, school-holiday camps and the Codaquest+ membership. Prices are in EUR including VAT. Use this instead of reading numbers off the page.Takes an action on the site.

pagehttps://www.codaquest.com/

implementation

viaimperative

entry pointdocument

registered after690ms

executepresent

api surfaceTakes no parameters.

annotations

read onlynot declared

destructivenot declared

idempotentnot declared

open worldnot declared

untrusted contentnot declared

titlenot declared

2 findings

failAnnotations present

0 / 4

4 of 4 tools declare no readOnlyHint, so an agent cannot tell a read from a write without guessing from the name.

codaquest_get_pricing, codaquest_get_contact, codaquest_read_page_as_markdown, codaquest_open_free_trial_booking

fix

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

warningHuman parity

1.6 / 8

4 of 5 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.

codaquest_get_pricing, codaquest_get_contact, codaquest_read_page_as_markdown, codaquest_open_free_trial_booking

fix

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

tool json

{
  "name": "codaquest_get_pricing",
  "description": "Read Codaquest's published prices for weekly coding courses, school-holiday camps and the Codaquest+ membership. Prices are in EUR including VAT. Use this instead of reading numbers off the page.",
  "inputSchema": {
    "type": "object",
    "properties": {}
  },
  "annotations": {}
}

Findings

WebMCP use

67 / 100 · weight 50

passTools registered

4 / 4

4 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 1 declarative form tool on the page stay usable regardless.

passRegistration timing

4 / 4

Every measured tool registered within 689.7000000476837ms of navigation. 1 further tool carried no measurable registration time.

toolcodaquest_get_contact

passCanonical entry point

4 / 4

All 4 tools register on the canonical document.modelContext entry point.

passSchema validity

5 / 5

All 4 tools declare a structurally valid object input schema.

warningSchema quality

3.2 / 4

1 of 5 tool schemas are harder for an agent to use than they need to be: codaquest_read_page_as_markdown declares no required list, so an agent cannot tell which parameters are mandatory.

toolcodaquest_read_page_as_markdown

codaquest_read_page_as_markdown: declares no required list, so an agent cannot tell which parameters are mandatory

fix

{
  name: "codaquest_read_page_as_markdown",
  inputSchema: {
    type: "object",
    properties: {
      query: { type: "string", description: "What to search for" }
    },
    required: ["query"]
  }
}

passStub detection

5 / 5

All 4 tools declare an execute handler.

failAnnotations present

0 / 4

4 of 4 tools declare no readOnlyHint, so an agent cannot tell a read from a write without guessing from the name.

toolcodaquest_get_pricing

codaquest_get_pricing, codaquest_get_contact, codaquest_read_page_as_markdown, codaquest_open_free_trial_booking

fix

{
  name: "codaquest_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

4 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

50 / 100 · weight 30

warningNaming quality

1 / 2

Tool naming makes selection harder than it needs to be: 2 names are over Chrome's 30-character guidance; 5 names do not start with a verb (codaquest_get_pricing).

toolcodaquest_read_page_as_markdown

fix

{ name: "codaquest_read_page_as_markdown" /* short, unique, verb-based */ }

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.

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

20 / 100 · weight 20

warningHuman parity

1.6 / 8

toolcodaquest_get_pricing

codaquest_get_pricing, codaquest_get_contact, codaquest_read_page_as_markdown, codaquest_open_free_trial_booking

fix

<!-- Give the tool a visible counterpart: a declarative form is one the person can see and use too. -->
<form toolname="codaquest_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: 5
run time: 5s
finished: Aug 28, 2026