therapyworld.org WebMCP audit

Rescan
audited Aug 28, 2026in 6s
81/ 100

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

WebMCP use91
Usefulness100
Human experience25
about:blank

No agent run recorded yet.

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Tools

/
search_therapists: warning

search_therapists

Search accredited UK therapists, counsellors, and psychotherapists on Therapy World with full multi-filter support: keywords, location & radius, modality (in-person/online/phone), fee caps, working days & shifts, specialisms (anxiety, depression, trauma, ADHD), therapy types (CBT, EMDR), pronouns, languages, and wheelchair accessibility.Answers a question. Declared read only.
pagehttps://www.therapyworld.org/
implementation
viaimperative
entry pointdocument
registered after1101ms
executepresent
api surface
queryoptional
locationoptional
distanceoptional
modalityoptional
max_priceoptional
min_priceoptional
daysoptional
shiftsoptional
issueoptional
therapy_typeoptional
client_typeoptional
pronounsoptional
languageoptional
wheelchair_accessibleoptional
verified_onlyoptional
limitoptional
pageoptional
annotations
read onlytrue
destructivenot declared
idempotentnot declared
open worldnot declared
untrusted contentnot declared
titlenot declared
2 findings
warningSchema quality
3 / 4
1 of 4 tool schemas are harder for an agent to use than they need to be: search_therapists 2 parameter descriptions are over Chrome's 150-character guidance.
search_therapists: 2 parameter descriptions are over Chrome's 150-character guidance
fix
{
  name: "search_therapists",
  inputSchema: {
    type: "object",
    properties: {
      query: { type: "string", description: "What to search for" }
    },
    required: ["query"]
  }
}
warningHuman parity
2 / 8
3 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_therapists, get_therapy_specialties, get_emergency_helplines
fix
<!-- Give the tool a visible counterpart: a declarative form is one the person can see and use too. -->
<form toolname="search_therapists" tooldescription="...">
  <!-- the same action, as UI -->
</form>
tool json
{
  "name": "search_therapists",
  "description": "Search accredited UK therapists, counsellors, and psychotherapists on Therapy World with full multi-filter support: keywords, location & radius, modality (in-person/online/phone), fee caps, working days & shifts, specialisms (anxiety, depression, trauma, ADHD), therapy types (CBT, EMDR), pronouns, languages, and wheelchair accessibility.",
  "inputSchema": {
    "type": "object",
    "properties": {
      "query": {
        "type": "string",
        "description": "Mental health condition, specialization, issue, or therapist name (e.g. \"Anxiety\", \"ADHD\", \"Depression\", \"CBT\", \"Couples Counselling\", \"Dr. Jane Smith\")."
      },
      "location": {
        "type": "string",
        "description": "UK City, town, or postcode area (e.g. \"London\", \"Manchester\", \"Birmingham\", \"SW1A 1AA\", \"Leeds\")."
      },
      "distance": {
        "type": "number",
        "description": "Search radius in miles around the location/postcode (e.g. 5, 10, 25)."
      },
      "modality": {
        "type": "string",
        "enum": [
          "in_person",
          "online",
          "telephone",
          "home_visit"
        ],
        "description": "Session modality: \"in_person\", \"online\", \"telephone\", or \"home_visit\"."
      },
      "max_price": {
        "type": "number",
        "description": "Maximum fee per session in GBP (£) (e.g. 50, 75, 100)."
      },
      "min_price": {
        "type": "number",
        "description": "Minimum fee per session in GBP (£)."
      },
      "days": {
        "type": "string",
        "description": "Available day(s) of the week (e.g. \"Monday\", \"Saturday\", or comma-separated \"Monday,Wednesday\")."
      },
      "shifts": {
        "type": "string",
        "description": "Available shift/time of day: \"Morning\", \"Afternoon\", \"Evening\", or \"Night\"."
      },
      "issue": {
        "type": "string",
        "description": "Specific mental health issue or category (e.g. \"Anxiety\", \"Trauma\", \"Depression\", \"ADHD\", \"OCD\", \"Bereavement\", \"Eating disorders\", \"LGBTQ+ counselling\", \"Menopause\")."
      },
      "therapy_type": {
        "type": "string",
        "description": "Therapeutic approach/modality (e.g. \"CBT\", \"Psychodynamic\", \"Integrative\", \"EMDR\", \"Humanistic\", \"Hypnotherapy\", \"DBT\", \"Person-centred\")."
      },
      "client_type": {
        "type": "string",
        "description": "Target client group (e.g. \"Adults\", \"Children\", \"Couples\", \"Families\", \"Young people\")."
      },
      "pronouns": {
        "type": "string",
        "description": "Therapist pronouns (e.g. \"He/Him\", \"She/Her\", \"They/Them\")."
      },
      "language": {
        "type": "string",
        "description": "Spoken language (e.g. \"English\", \"Spanish\", \"French\", \"Hindi\", \"Urdu\", \"Polish\")."
      },
      "wheelchair_accessible": {
        "type": "boolean",
        "description": "Filter for wheelchair accessible therapy rooms/practices."
      },
      "verified_only": {
        "type": "boolean",
        "description": "Filter for accredited / verified therapists only."
      },
      "limit": {
        "type": "integer",
        "description": "Maximum number of results to return (default 10, max 50)."
      },
      "page": {
        "type": "integer",
        "description": "Page number for pagination (default 1)."
      }
    }
  },
  "annotations": {
    "readOnlyHint": true
  }
}
Showing search_therapists

Findings

WebMCP use

91 / 100 · weight 50
passTools registered
4 / 4
3 imperative tools and 1 declarative form registered across 1 page.
passReal-browser eligible
8 / 8
A real browser exposes modelContext natively on this page, so the tools registered here are visible to an agent today.
warningRegistration timing
2 / 4
The slowest tool took 1101.6000001430511ms to register, past the 1000ms an agent reading the registry at first paint would wait for. 1 further tool carried no measurable registration time.
toolget_therapy_specialties
get_therapy_specialties: registered at 1101.6000001430511ms
fix
// Register tools as soon as they're ready, not behind a deferred/async chunk.
document.modelContext.provideContext({ tools: [/* ... */] });
passCanonical entry point
4 / 4
All 3 tools register on the canonical document.modelContext entry point.
passSchema validity
5 / 5
All 3 tools declare a structurally valid object input schema.
warningSchema quality
3 / 4
1 of 4 tool schemas are harder for an agent to use than they need to be: search_therapists 2 parameter descriptions are over Chrome's 150-character guidance.
toolsearch_therapists
search_therapists: 2 parameter descriptions are over Chrome's 150-character guidance
fix
{
  name: "search_therapists",
  inputSchema: {
    type: "object",
    properties: {
      query: { type: "string", description: "What to search for" }
    },
    required: ["query"]
  }
}
passStub detection
5 / 5
All 3 tools declare an execute handler.
passAnnotations present
4 / 4
All 3 tools declare a readOnlyHint, so an agent knows which calls change state.
passAnnotation mismatch
3 / 3
No tool claims to be read-only while its name says it writes (3 declared hints 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
3 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 4 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.
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

25 / 100 · weight 20
warningHuman parity
2 / 8
3 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.
toolsearch_therapists
search_therapists, get_therapy_specialties, get_emergency_helplines
fix
<!-- Give the tool a visible counterpart: a declarative form is one the person can see and use too. -->
<form toolname="search_therapists" 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