mana.am WebMCP audit

Name: mana.am WebMCP audit
Creator: ora

Rescan

audited Aug 28, 2026in 5s

53/ 100

2 tools registered. Strongest in usefulness, weakest in human experience.

WebMCP use45

Usefulness100

Human experience0

about:blank

No agent run recorded yet.

No steps recorded

Tools

/en/

list_mana_agent_docs

List Mana product and API documents available to agents.Takes an action on the site.

pagehttps://mana.am/en/

implementation

viaimperative

entry pointnavigator

registered after395ms

executepresent

api surface

include_urlsoptional

annotations

read onlynot declared

destructivenot declared

idempotentnot declared

open worldnot declared

untrusted contentnot declared

titlenot declared

4 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: [/* ... */] });

warningSchema quality

0 / 4

2 of 2 tool schemas are harder for an agent to use than they need to be: list_mana_agent_docs 1 parameter has no description (include_urls).

list_mana_agent_docs: 1 parameter has no description (include_urls); get_mana_agent_doc: 1 parameter has no description (doc)

fix

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

failAnnotations present

0 / 4

2 of 2 tools declare no readOnlyHint, so an agent cannot tell a read from a write without guessing from the name.

list_mana_agent_docs, get_mana_agent_doc

fix

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

warningHuman parity

0 / 8

2 of 2 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.

list_mana_agent_docs, get_mana_agent_doc

fix

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

tool json

{
  "name": "list_mana_agent_docs",
  "description": "List Mana product and API documents available to agents.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "include_urls": {
        "type": "boolean",
        "default": true
      }
    },
    "additionalProperties": false
  },
  "annotations": {}
}

Findings

WebMCP use

45 / 100 · weight 50

passTools registered

4 / 4

2 tools 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.

passRegistration timing

4 / 4

Every measured tool registered within 395.59999990463257ms of navigation.

toolget_mana_agent_doc

failCanonical entry point

0 / 4

Every tool registers through the deprecated navigator.modelContext alias; move them to document.modelContext before the alias is removed.

toollist_mana_agent_docs

fix

// Use the canonical entry point - navigator.modelContext is deprecated.
document.modelContext.provideContext({ tools: [/* ... */] });

passSchema validity

5 / 5

All 2 tools declare a structurally valid object input schema.

warningSchema quality

0 / 4

2 of 2 tool schemas are harder for an agent to use than they need to be: list_mana_agent_docs 1 parameter has no description (include_urls).

toollist_mana_agent_docs

list_mana_agent_docs: 1 parameter has no description (include_urls); get_mana_agent_doc: 1 parameter has no description (doc)

fix

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

passStub detection

5 / 5

All 2 tools declare an execute handler.

failAnnotations present

0 / 4

2 of 2 tools declare no readOnlyHint, so an agent cannot tell a read from a write without guessing from the name.

toollist_mana_agent_docs

list_mana_agent_docs, get_mana_agent_doc

fix

{
  name: "list_mana_agent_docs",
  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.

failRegistration errors

0 / 2

4 tool registrations threw during the capture, so the registry an agent reads is incomplete.

duplicate tool name registered: list_mana_agent_docs

fix

try {
  document.modelContext.provideContext({ tools: [/* ... */] });
} catch (err) {
  console.error("WebMCP registration failed", err);
}

warningToolchange coherence

1 / 2

2 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

100 / 100 · weight 30

passNaming quality

2 / 2

All 2 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.

passCoverage vs. site type

8 / 8

The tool set covers the whole core docs flow: search or browse the catalog, read a page or article, navigate the documentation tree.

Human experience

0 / 100 · weight 20

warningHuman parity

0 / 8

toollist_mana_agent_docs

list_mana_agent_docs, get_mana_agent_doc

fix

<!-- Give the tool a visible counterpart: a declarative form is one the person can see and use too. -->
<form toolname="list_mana_agent_docs" 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: 2
run time: 5s
finished: Aug 28, 2026