jobspipe.dev WebMCP audit

Name: jobspipe.dev WebMCP audit
Creator: ora

Rescan

audited Aug 28, 2026in 5s

63/ 100

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

WebMCP use69

Usefulness95

Human experience0

about:blank

No agent run recorded yet.

No steps recorded

Tools

search_job_postings

Search live job postings from the JobsPipe dataset. Returns normalized rows (title, budget, skills, client country, posted date) from the public Jobs API. The first 100 results are available without authentication.Takes an action on the site.

pagehttps://jobspipe.dev/

implementation

viaimperative

entry pointprovideContext

registered after631ms

executepresent

api surface

limitoptional

offsetoptional

sortoptional

orderoptional

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.

search_job_postings, scan_company_tech_stack, get_api_catalog, navigate_to_page

fix

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

warningHuman parity

0 / 8

4 of 4 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.

search_job_postings, scan_company_tech_stack, get_api_catalog, navigate_to_page

fix

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

tool json

{
  "name": "search_job_postings",
  "description": "Search live job postings from the JobsPipe dataset. Returns normalized rows (title, budget, skills, client country, posted date) from the public Jobs API. The first 100 results are available without authentication.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "limit": {
        "type": "integer",
        "minimum": 1,
        "maximum": 200,
        "description": "Number of postings to return (max 200)."
      },
      "offset": {
        "type": "integer",
        "minimum": 0,
        "description": "Number of postings to skip for pagination."
      },
      "sort": {
        "type": "string",
        "enum": [
          "posted_on",
          "title",
          "budget",
          "hourly_min",
          "proposals",
          "client_total_spent",
          "client_rating",
          "client_country",
          "tier"
        ],
        "description": "Field to sort by."
      },
      "order": {
        "type": "string",
        "enum": [
          "asc",
          "desc"
        ],
        "description": "Sort direction."
      }
    },
    "required": []
  },
  "annotations": {}
}

Findings

WebMCP use

69 / 100 · weight 50

passTools registered

4 / 4

4 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 630.7000000476837ms of navigation.

toolget_api_catalog

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.

passSchema quality

4 / 4

All 4 tool schemas describe their parameters and stay within Chrome's size guidance.

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.

toolsearch_job_postings

search_job_postings, scan_company_tech_stack, get_api_catalog, navigate_to_page

fix

{
  name: "search_job_postings",
  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

95 / 100 · weight 30

warningNaming quality

1.5 / 2

Tool naming makes selection harder than it needs to be: 2 names do not start with a verb (scan_company_tech_stack).

toolscan_company_tech_stack

fix

{ name: "scan_company_tech_stack" /* 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.

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

toolsearch_job_postings

search_job_postings, scan_company_tech_stack, get_api_catalog, navigate_to_page

fix

<!-- Give the tool a visible counterpart: a declarative form is one the person can see and use too. -->
<form toolname="search_job_postings" 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: 4
run time: 5s
finished: Aug 28, 2026