blitzreels.com WebMCP audit

Name: blitzreels.com WebMCP audit
Creator: ora

Rescan

audited Aug 28, 2026in 6s

52/ 100

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

WebMCP use73

Usefulness50

Human experience0

about:blank

No agent run recorded yet.

No steps recorded

Tools

blitzreels_navigate

Navigate the current BlitzReels window to a relative path on blitzreels.com (e.g. '/pricing', '/editor', '/docs').Takes an action on the site.

pagehttps://blitzreels.com/

implementation

viaimperative

entry pointprovideContext

registered after404ms

executepresent

api surface

pathrequired

annotations

read onlynot declared

destructivenot declared

idempotentnot declared

open worldnot declared

untrusted contentnot declared

titlenot declared

3 findings

warningNaming quality

1 / 2

Tool naming makes selection harder than it needs to be: 4 names do not start with a verb (blitzreels_navigate).

fix

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

warningAnnotations present

1 / 4

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

blitzreels_navigate, blitzreels_open_editor, blitzreels_get_api_resources

fix

{
  name: "blitzreels_navigate",
  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.

blitzreels_navigate, blitzreels_open_editor, blitzreels_get_api_resources, open_blitzreels_trial

fix

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

tool json

{
  "name": "blitzreels_navigate",
  "description": "Navigate the current BlitzReels window to a relative path on blitzreels.com (e.g. '/pricing', '/editor', '/docs').",
  "inputSchema": {
    "type": "object",
    "properties": {
      "path": {
        "type": "string",
        "description": "Path on the BlitzReels site, starting with '/'. Must stay same-origin."
      }
    },
    "required": [
      "path"
    ],
    "additionalProperties": false
  },
  "annotations": {}
}

Findings

WebMCP use

73 / 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 478.7999999523163ms of navigation.

toolopen_blitzreels_trial

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.

warningAnnotations present

1 / 4

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

toolblitzreels_navigate

blitzreels_navigate, blitzreels_open_editor, blitzreels_get_api_resources

fix

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

passAnnotation mismatch

3 / 3

No tool claims to be read-only while its name says it writes (1 declared hint checked).

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: 4 names do not start with a verb (blitzreels_navigate).

toolblitzreels_navigate

fix

{ name: "blitzreels_navigate" /* 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

0 / 100 · weight 20

warningHuman parity

0 / 8

toolblitzreels_navigate

blitzreels_navigate, blitzreels_open_editor, blitzreels_get_api_resources, open_blitzreels_trial

fix

<!-- Give the tool a visible counterpart: a declarative form is one the person can see and use too. -->
<form toolname="blitzreels_navigate" 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: 6s
finished: Aug 28, 2026