living-ark-webmcp.vercel.app WebMCP audit

Name: living-ark-webmcp.vercel.app WebMCP audit
Creator: ora

Rescan

audited Sep 4, 2026in 13s

95/ 100100% of the applicable check weight evaluated

8 tools registered. Strongest in shared experience, weakest in trust.

Shared experience100

Tool selection100

Tool quality93

Trust85

https://living-ark-webmcp.vercel.app

Tools

5 read, 3 write

Loading map

inspect_ark

Inspect the live Living Ark at its current canonical revision. Returns global stability, critical systems, resources, and exact crisis counts. This tool is read-only.Answers a question. Declared read only.

pagehttps://living-ark-webmcp.vercel.app/

implementation

viaimperative

entry pointdocument

registered after210ms

executepresent

api surfaceTakes no parameters.

annotations

read onlytrue

untrusted contentnot declared

titlenot declared

0 findingsNo check named this tool.

tool json

{
  "name": "inspect_ark",
  "description": "Inspect the live Living Ark at its current canonical revision. Returns global stability, critical systems, resources, and exact crisis counts. This tool is read-only.",
  "inputSchema": {
    "type": "object",
    "properties": {},
    "additionalProperties": false
  },
  "annotations": {
    "readOnlyHint": true
  }
}

Findings

Shared experience

100 / 100 · weight 30

not applicableVisible effect

weight 6

Not invoked on this run: this audit did not call any tool. Scheduled re-audits only read the registry; a live audit from the report page calls the tools that declare readOnlyHint: true.

passPage experience

weight 16

The page a person sees holds up next to the agent surface: a working interface, visible actions, readable content, nothing in the way.

passHuman parity

weight 8

The person co-browsing can see and use this page - the same page the agent's tools act on.

Tool selection

100 / 100 · weight 25

not applicableInvoke success rate

weight 6

Not invoked on this run: this audit did not call any tool. Scheduled re-audits only read the registry; a live audit from the report page calls the tools that declare readOnlyHint: true.

passTool selection

weight 12

An agent chose an existing, callable tool and built a schema-valid call for all 3 canonical intents, each matching the kind of tool its intent needs. Nothing was executed, so this verifies selection, not outcomes.

not applicableCoverage vs. site type

weight 7

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.

Tool quality

93 / 100 · weight 25

passRegistration timing

weight 1

Every measured tool registered within 213ms of navigation.

toolvalidate_thermal_capability

passCanonical entry point

weight 3

All 8 tools register on the canonical document.modelContext entry point.

passSchema validity

weight 4

All 8 declared input schemas are structurally valid object schemas.

warningSchema quality

weight 4

3 of 8 tool schemas are harder for an agent to use than they need to be: author_thermal_capability 1 parameter has no description (definition).

toolauthor_thermal_capability

author_thermal_capability: 1 parameter has no description (definition); simulate_thermal_capability: 1 parameter has no description (candidateId); validate_thermal_capability: 1 parameter has no descr

fix

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

warningNaming quality

weight 2

Tool naming makes selection harder than it needs to be: 1 name does not start with a verb (author_thermal_capability).

toolauthor_thermal_capability

fix

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

passStub detection

weight 4

All 8 tools declare an execute handler.

passRegistration errors

weight 2

No tool registration threw during the capture.

passDescription quality

weight 5

All 8 rated tool descriptions say what the tool does, when to use it, and what it returns.

Trust

85 / 100 · weight 20

warningAnnotations present

weight 5

2 of 7 read-shaped tools do not declare readOnlyHint: true, so an agent has to treat them as possible writes and ask before calling. (Declaring readOnlyHint: false earns nothing - it is the default.)

toolsimulate_thermal_capability

simulate_thermal_capability, validate_thermal_capability

fix

{
  name: "simulate_thermal_capability",
  // Declare readOnlyHint: true on tools that truly have no side effects -
  // that is the claim that lets an agent relax confirmation on reads.
  // (false is the default, so declaring it adds no information.)
  annotations: { readOnlyHint: true }
}

passAnnotation mismatch

weight 5

No tool claims to be read-only while its own name or description says it writes (8 declared hints checked).

not applicableUntrusted content hint

weight 3

No tool's contract suggests it returns text written by somebody other than the site, so there is nothing to flag as untrusted.

not applicableHint vs. observed

weight 4

Not invoked on this run: this audit did not call any tool. Scheduled re-audits only read the registry; a live audit from the report page calls the tools that declare readOnlyHint: true.

not applicableInjection surface

weight 3

No tool's metadata carries instruction-shaped text aimed at the agent reading it. This check only ever flags; it never credits a site.

Tool selection

100% across 3 intents

I want to inspect ark on this site.ok

choseinspect_arkexpected inspect arkkind matched

arguments

{}

I want to read arkscript manual on this site.ok

choseread_arkscript_manualexpected read arkscript manualkind matched

arguments

{}

I want to author thermal capability on this site.ok

choseauthor_thermal_capabilityexpected author thermal capabilitykind matched

arguments

{
  "definition": {
    "name": "example_capability",
    "description": "This is an example thermal capability for demonstration purposes.",
    "parameters": [
      {
        "name": "targetTemperature",
        "description": "The desired temperature for the thermal operation.",
        "type": "number",
        "minimum": 0,
        "maximum": 100,
        "default": 50
      }
    ],
    "program": "function example_capability(targetTemperature) { return targetTemperature * 2; }"
  }
}

model: gemini-2.5-flash

Add the tools this site is missing

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how this was captured

observed via: capture shim (Chromium 151.0.7922.34)
chrome: 151.0.7922.34
capture shim: v3
spec snapshot: 2026-08-26
mode: fast
pages: 1 - entry page only
tools: 8
invoked: not invoked; a live audit calls them
run time: 13s
finished: Sep 4, 2026

Checked the way in-browser agents discover tools: the top-level document's modelContext registry, read after the page settles.