chore: import upstream snapshot with attribution

mkdocs.yml

@@ -0,0 +1,201 @@
+site_name: MCP Python SDK
+site_description: The official Python SDK for the Model Context Protocol
+
+repo_name: modelcontextprotocol/python-sdk
+repo_url: https://github.com/modelcontextprotocol/python-sdk
+edit_uri: edit/main/docs/
+site_url: https://py.sdk.modelcontextprotocol.io/v2/
+
+# TODO(Marcelo): Add Anthropic copyright?
+# copyright: © Model Context Protocol 2025 to present
+
+# The "API Reference" entry is a placeholder: `scripts/docs/gen_ref_pages.py`
+# generates the `docs/api/` tree and `scripts/docs/build_config.py` splices the
+# real nested nav in before the build. See `scripts/docs/build.sh`.
+nav:
+  - MCP Python SDK: index.md
+  - "What's new in v2": whats-new.md
+  - Get started:
+      - get-started/index.md
+      - Installation: get-started/installation.md
+      - First steps: get-started/first-steps.md
+      - Connect to a real host: get-started/real-host.md
+      - Testing: get-started/testing.md
+  - Servers:
+      - servers/index.md
+      - Tools: servers/tools.md
+      - Structured Output: servers/structured-output.md
+      - Resources: servers/resources.md
+      - URI templates: servers/uri-templates.md
+      - Prompts: servers/prompts.md
+      - Completions: servers/completions.md
+      - "Images, audio & icons": servers/media.md
+      - Handling errors: servers/handling-errors.md
+  - Inside your handler:
+      - handlers/index.md
+      - The Context: handlers/context.md
+      - Dependencies: handlers/dependencies.md
+      - Lifespan: handlers/lifespan.md
+      - Elicitation: handlers/elicitation.md
+      - Multi-round-trip requests: handlers/multi-round-trip.md
+      - Sampling and roots: handlers/sampling-and-roots.md
+      - Progress: handlers/progress.md
+      - Logging: handlers/logging.md
+      - Subscriptions: handlers/subscriptions.md
+  - Running your server:
+      - run/index.md
+      - Add to an existing app: run/asgi.md
+      - Deploy & scale: run/deploy.md
+      - Authorization: run/authorization.md
+      - OpenTelemetry: run/opentelemetry.md
+      - Serving legacy clients: run/legacy-clients.md
+  - Clients:
+      - client/index.md
+      - Callbacks: client/callbacks.md
+      - Transports: client/transports.md
+      - OAuth: client/oauth-clients.md
+      - Identity assertion: client/identity-assertion.md
+      - Multiple servers: client/session-groups.md
+      - Subscriptions: client/subscriptions.md
+      - Caching: client/caching.md
+  - Protocol versions: protocol-versions.md
+  - Deprecated features: deprecated.md
+  - Advanced:
+      - advanced/index.md
+      - The low-level Server: advanced/low-level-server.md
+      - Pagination: advanced/pagination.md
+      - Middleware: advanced/middleware.md
+      - Extensions: advanced/extensions.md
+      - MCP Apps: advanced/apps.md
+  - Troubleshooting: troubleshooting.md
+  - Migration Guide: migration.md
+  - API Reference: api/
+
+theme:
+  name: "material"
+  custom_dir: docs/.overrides
+  font:
+    text: Inter
+    code: JetBrains Mono
+  icon:
+    logo: mcp
+  favicon: favicon.svg
+  palette:
+    - media: "(prefers-color-scheme)"
+      scheme: default
+      primary: black
+      accent: black
+      toggle:
+        icon: material/lightbulb
+        name: "Switch to light mode"
+    - media: "(prefers-color-scheme: light)"
+      scheme: default
+      primary: black
+      accent: black
+      toggle:
+        icon: material/lightbulb-outline
+        name: "Switch to dark mode"
+    - media: "(prefers-color-scheme: dark)"
+      scheme: slate
+      primary: black
+      accent: white
+      toggle:
+        icon: material/lightbulb-auto-outline
+        name: "Switch to system preference"
+  features:
+    - search.suggest
+    - search.highlight
+    - content.tabs.link
+    - content.code.annotate
+    - content.code.copy
+    - content.code.select
+    - navigation.footer
+    - navigation.indexes
+    - navigation.instant
+    - navigation.instant.prefetch
+    - navigation.instant.progress
+    - navigation.path
+    - navigation.prune
+    - navigation.sections
+    - navigation.top
+    - navigation.tracking
+    - toc.follow
+
+extra_css:
+  - extra.css
+
+markdown_extensions:
+  - tables
+  - abbr
+  - admonition
+  - attr_list
+  - def_list
+  - footnotes
+  - md_in_html
+  - pymdownx.betterem
+  - pymdownx.details
+  - pymdownx.caret
+  - pymdownx.critic
+  - pymdownx.mark
+  # Code examples live as complete, importable, tested files under `docs_src/`
+  # and are included into pages with `--8<-- "docs_src/<chapter>/tutorialNNN.py"`
+  # (resolved against the repo root, which is the build's working directory).
+  # `check_paths: true` turns a renamed/deleted example into a build failure
+  # instead of a silently empty code block.
+  - pymdownx.snippets:
+      base_path: [.]
+      check_paths: true
+  - pymdownx.tilde
+  - pymdownx.inlinehilite
+  - pymdownx.highlight:
+      pygments_lang_class: true
+  - pymdownx.superfences:
+      custom_fences:
+        - name: mermaid
+          class: mermaid
+          format: pymdownx.superfences.fence_code_format
+  # Zensical re-implements the emoji extension; the generator/index functions
+  # live under `zensical.extensions.emoji`, not `material.extensions.emoji`.
+  - pymdownx.emoji:
+      emoji_index: zensical.extensions.emoji.twemoji
+      emoji_generator: zensical.extensions.emoji.to_svg
+      options:
+        custom_icons:
+          - docs/.overrides/.icons
+  - pymdownx.tabbed:
+      alternate_style: true
+  - pymdownx.tasklist:
+      custom_checkbox: true
+  - sane_lists # this means you can start a list from any number
+
+# Zensical natively watches these beyond docs/: page content is assembled
+# from src/ (mkdocstrings) and docs_src/ (snippet includes), so serve
+# live-reload must react to both.
+watch:
+  - src
+  - docs_src
+
+# Zensical natively re-implements `search`, `glightbox` and `mkdocstrings`; it
+# does not run arbitrary MkDocs plugins or hooks. The former `gen-files`,
+# `literate-nav` and `llms_txt` hook are handled by the standalone scripts
+# under `scripts/docs/` (see scripts/docs/build.sh). The `social` plugin was
+# dropped: Zensical has no social-card support, and the cards were gated on
+# ENABLE_SOCIAL_CARDS, which no workflow ever set.
+plugins:
+  - search
+  - glightbox
+  - mkdocstrings:
+      handlers:
+        python:
+          paths: [src, src/mcp-types]
+          options:
+            relative_crossrefs: true
+            members_order: source
+            separate_signature: true
+            show_signature_annotations: true
+            signature_crossrefs: true
+            group_by_category: false
+          inventories:
+            - url: https://docs.python.org/3/objects.inv
+            - url: https://docs.pydantic.dev/latest/objects.inv
+            - url: https://typing-extensions.readthedocs.io/en/latest/objects.inv