papatartufi.com WebMCP audit

Name: papatartufi.com WebMCP audit
Creator: ora

Rescan

audited Sep 11, 2026in 16s

43/ 100100% of the applicable check weight evaluated

2 tools registered. Strongest in tool quality, weakest in trust.

Shared experience62

Tool selection0

Tool quality98

Trust0

https://papatartufi.com

Tools

0 read, 0 write, 2 undeclared

Loading map

scan_images_c2pa

Scan every <img> on the current page for C2PA Content Credentials (content provenance metadata) and return a per-image summary: whether a manifest is present, the claim generator (the tool that produced or edited the image), the title, and the signer name. Use this to find which images on a page carry provenance data. Note: provenance is decoded but NOT cryptographically verified.No behaviour hints declared. Agents should treat it as possibly state-changing.

pagehttps://papatartufi.com/en

implementation

viaimperative

entry pointdocument

registered after1017ms

executepresent

api surface

limitoptional

annotations

read onlynot declared

untrusted contentnot declared

titlenot declared

1 finding

failAnnotations present

weight 5

2 of 2 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.)

scan_images_c2pa, inspect_image_c2pa

fix

{
  name: "scan_images_c2pa",
  // 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 }
}

tool json

{
  "name": "scan_images_c2pa",
  "description": "Scan every <img> on the current page for C2PA Content Credentials (content provenance metadata) and return a per-image summary: whether a manifest is present, the claim generator (the tool that produced or edited the image), the title, and the signer name. Use this to find which images on a page carry provenance data. Note: provenance is decoded but NOT cryptographically verified.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "limit": {
        "type": "integer",
        "minimum": 1,
        "maximum": 100,
        "default": 25,
        "description": "Maximum number of images to fetch and scan (default 25, max 100)."
      }
    },
    "required": []
  },
  "annotations": {}
}

Findings

Shared experience

62 / 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.

warningPage experience

weight 16

3 of 4 page-experience marks came back short: clarity The main content is obscured by placeholder images, making it unclear what to do..

clarity: weak; readability: weak; obstruction: weak

warningHuman parity

weight 8

The page the person sees came back short of the agent surface (3 of 4 page-experience marks came back short: clarity The main content is obscured by placeholder images, making it u...), so the two are not sharing an equal experience.

fix

// Make the tool's effect visible on the page the person is looking at:
// update the same UI your existing human flow uses when your_tool_name runs,
// so the person co-browsing sees what the agent just did.
execute: async (args, { signal }) => {
  const result = await performAction(args, signal);
  renderResultInPage(result); // the human-visible half of the same action
  return result;
}

Tool selection

0 / 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.

failTool selection

weight 12

An agent chose an existing tool and built a schema-valid call that held up on 0 of 3 canonical intents; on "Open the document I was working on most recently." no tool on the page served it. Nothing was executed, so this verifies selection, not outcomes.

failCoverage vs. site type

weight 7

The tool set covers 0 of the 3 things an agent needs on a editor site; it cannot open or read a document or edit or write content or save, publish, or share the result.

Tool quality

98 / 100 · weight 25

warningRegistration timing

weight 1

The slowest tool took 1017ms to register, past the 1000ms an agent reading the registry at first paint would wait for.

toolinspect_image_c2pa

inspect_image_c2pa: registered at 1017ms

fix

// Register tools as soon as they're ready, not behind a deferred/async chunk.
document.modelContext.registerTool({ /* ... */ });

passCanonical entry point

weight 3

All 2 tools register on the canonical document.modelContext entry point.

passSchema validity

weight 4

All 2 declared input schemas are structurally valid object schemas.

passSchema quality

weight 4

All 2 tool schemas describe their parameters, and every description stays within Chrome's size guidance.

passNaming quality

weight 2

All 2 tool names are consistent, verb-led, and within Chrome's size guidance.

passStub detection

weight 4

All 2 tools declare an execute handler.

passRegistration errors

weight 2

No tool registration threw during the capture.

passDescription quality

weight 5

All 2 rated tool descriptions say what the tool does, when to use it, and what it returns.

Trust

0 / 100 · weight 20

failAnnotations present

weight 5

2 of 2 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.)

toolscan_images_c2pa

scan_images_c2pa, inspect_image_c2pa

fix

{
  name: "scan_images_c2pa",
  // 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 }
}

not applicableAnnotation mismatch

weight 5

No tool declares a readOnlyHint, so there is no safety claim to contradict.

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

0% across 3 intents

Open the document I was working on most recently.missed

choseno toolexpected document openkind not applicable

No tool was picked for this intent.

arguments

{}

Add a short summary paragraph at the top.missed

choseno toolexpected content editkind not applicable

No tool was picked for this intent.

arguments

{}

Save it and give me a link I can share.missed

choseno toolexpected save or sharekind not applicable

No tool was picked for this intent.

arguments

{}

model: gemini-2.5-flash

Add the tools this site is missing

Our scanner reads your website and suggests the right WebMCP tools for it.

The open source webmcp plugin teaches your coding agent to audit a site, implement tools on document.modelContext, and verify them in a real browser. npx @ora-ai/webmcp-verify runs the verification on its own. No signup, no hosted service.

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: 2
invoked: not invoked; a live audit calls them
run time: 16s
finished: Sep 11, 2026

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