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e35a74f004* Add FastMCPApp — a Provider for composable MCP applications * Wire Prefab callable resolver via to_json(tool_resolver=) parameter * Remove inspect.signature compat check, use try/except until prefab 0.10.0 * Address review: fix add_tool registry gaps, normalize auth errors, bump prefab to 0.10.0 * Register global key after _add_component succeeds * Simplify: extract decorator dispatch, use get_fastmcp_meta, expose get_global_tool * Remove prek from Marvin workflows These workflows run Claude to respond to /marvin mentions — linting the repo is unnecessary and fails without renderer deps installed. * Return ResolvedTool from callable resolver, add contacts example The callable resolver now returns ResolvedTool (from prefab_ui) instead of a plain string, carrying metadata like unwrap_result that the renderer needs to correctly handle structuredContent envelopes. The unwrap_result flag is derived from the tool's x-fastmcp-wrap-result output schema marker. * Bump prefab-ui requirement to >=0.11.0 * Remove stale ty ignore comments now that prefab-ui 0.11 is published * Add fastmcp dev apps command with browser UI preview * Improve fastmcp dev apps: dropdown picker, reload flag, process cleanup - Replace Tabs with Pages+Select for tool picker (Rx-based reactive state) - Add --reload/--no-reload flag (default: True) to fastmcp dev apps - Kill entire process group on shutdown so port 8000 is freed properly - Suppress uvicorn websockets deprecation warning (websockets-sansio) - Bump prefab-ui to >=0.11.1 (fixes get_renderer_head bug in 0.11.0) - Add farewell tool to greet_server example for multi-tool testing * Add docs for fastmcp dev apps command * Fix orphaned server on startup failure, guard Unix-only signal handling * Show tool title in picker, remove editable prefab source * Bump prefab-ui to >=0.11.2 * Fail fast when prefab-ui is not installed * Add apps/development docs, link from prefab and sidebar * Fix optional field defaults, fail with non-zero on startup timeout
64 lines
1.4 KiB
Python
64 lines
1.4 KiB
Python
"""Minimal example demonstrating a @app=True tool with arguments.
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Usage:
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uv run python greet_server.py
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"""
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from __future__ import annotations
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from typing import Literal
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from prefab_ui.components import Badge, Column, Heading, Muted
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from fastmcp import FastMCP
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mcp = FastMCP("Greeter")
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GREETINGS: dict[str, str] = {
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"English": "Hello",
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"Spanish": "¡Hola",
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"French": "Bonjour",
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"Japanese": "こんにちは",
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"Arabic": "مرحبا",
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}
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@mcp.tool(app=True)
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def greet(
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name: str,
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language: Literal["English", "Spanish", "French", "Japanese", "Arabic"] = "English",
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) -> Column:
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"""Greet someone in their language."""
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word = GREETINGS[language]
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with Column(gap=3, css_class="p-8") as view:
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Heading(f"{word}, {name}!")
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Muted("Greeting rendered by FastMCP")
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Badge(language)
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return view
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FAREWELLS: dict[str, str] = {
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"English": "Goodbye",
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"Spanish": "Adiós",
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"French": "Au revoir",
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"Japanese": "さようなら",
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"Arabic": "مع السلامة",
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}
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@mcp.tool(app=True)
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def farewell(
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name: str,
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language: Literal["English", "Spanish", "French", "Japanese", "Arabic"] = "English",
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) -> Column:
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"""Say farewell in their language."""
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word = FAREWELLS[language]
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with Column(gap=3, css_class="p-8") as view:
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Heading(f"{word}, {name}!")
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Muted("Farewell rendered by FastMCP")
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Badge(language)
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return view
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if __name__ == "__main__":
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mcp.run()
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