generated: '2026-09-10'
method: searched
source: >-
  https://trickybird.com/webmcp (HTTP 200, fetched 2026-09-10) and the Agents section of
  https://trickybird.com/llms.txt (HTTP 200, text/plain, fetched 2026-09-10). Corroborating
  measurement notes at https://trickybird.com/webmcp/tool-metadata-on-the-wire.
name: TrickyBird WebMCP (in-page browser-tab tools)
status: experimental
note: >-
  TrickyBird's only agent surface: WebMCP tools its own pages register into
  document.modelContext in a compatible Chromium tab. This is NOT a hosted or local MCP server —
  the tools exist only while a TrickyBird page is open in Chrome 149-156 (origin trial token
  carried by this origin) or a Chrome launched with --enable-features=WebMCP; Firefox and Safari
  have no document.modelContext. Clients read tools with document.modelContext.getTools() and
  call document.modelContext.executeTool(). The provider serves no /.well-known/webmcp.json
  manifest (probed 404 2026-09-10); the tool surface is documented in prose at /webmcp. The
  gateway refuses WebMCP on every document it proxies, so a page opened THROUGH TrickyBird can
  register no tools — only TrickyBird's own first-party pages carry them. The site description
  says "13 named tools"; the /webmcp reference enumerates 12 distinct tool names (recorded
  below), registered 17 times across 10 page patterns.
deployment:
  mode: none
  transport: in-page (WebMCP / document.modelContext)
  auth: none
  verified: searched
  note: >-
    No remote MCP endpoint an agent can POST to and no stdio package to install; recorded so the
    in-page surface is not conflated with a hosted MCP server.
tool_count: 12
registrations: 17
all_tools_no_auth: true
tools:
- name: open_site
  pages: ['/']
  category: navigation
  description: Open a website through TrickyBird in this tab. The proxied page loads in place of this one.
  input: {url: string}
  returns: [ok, invalid_url, busy, cancelled, failed]
- name: cancel_launch
  pages: ['/', '/unblock/<slug>']
  category: navigation
  description: Stop an open_site or open_this_site launch on this page, before it navigates.
  input: none
  returns: [cancelled, nothing_to_cancel]
- name: open_this_site
  pages: ['/unblock/<slug>']
  category: navigation
  description: Open the site this page is about through TrickyBird in this tab.
  input: none
  returns: [ok, busy, cancelled, failed]
- name: list_checked_sites
  pages: ['/', '/unblock', '/status']
  category: read
  description: List the sites TrickyBird publishes checked pages for. Read-only, opens nothing.
  input: none
- name: get_site_status
  pages: ['/', '/unblock', '/status']
  category: read
  description: 'Return what TrickyBird publishes for one checked site: status, category, page address and the date.'
  input: {domain: string}
  returns: [renders, unknown_site]
- name: get_faq
  pages: ['/faq']
  category: read
  description: Return the questions and answers TrickyBird publishes on its FAQ page.
  input: none
- name: get_security_overview
  pages: ['/security']
  category: read
  description: Return the sections TrickyBird publishes on its security page.
  input: none
- name: get_comparison
  pages: ['/compare']
  category: read
  description: Return the comparison TrickyBird publishes between a web proxy and a VPN.
  input: none
- name: get_article
  pages: ['/learn/<slug>']
  category: read
  description: 'Return the explainer this page is about: title, answer, opening, sections and questions.'
  input: none
- name: get_site_guide
  pages: ['/unblock/<slug>']
  category: read
  description: Return what TrickyBird publishes for the site this page is about.
  input: none
- name: list_articles
  pages: ['/learn']
  category: read
  description: List the explainers TrickyBird publishes, in order.
  input: none
- name: get_leak_test
  pages: ['/proof']
  category: read
  description: Return the leak test TrickyBird publishes on its proof page.
  input: none
x-evidence:
  fetched: '2026-09-10'
  url: https://trickybird.com/webmcp
  http_status: 200
  corroboration:
  - url: https://trickybird.com/llms.txt
    http_status: 200
  - url: https://trickybird.com/.well-known/webmcp.json
    http_status: 404