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modelcontextprotocol--pytho…/docs_src/completions/tutorial003.py
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chore: import upstream snapshot with attribution
2026-07-13 12:10:27 +08:00

41 lines
1.4 KiB
Python

from mcp_types import Completion, CompletionArgument, CompletionContext, PromptReference, ResourceTemplateReference
from mcp.server import MCPServer
mcp = MCPServer("GitHub Explorer")
LANGUAGES = ["go", "javascript", "python", "rust", "typescript"]
REPOS_BY_OWNER = {
"modelcontextprotocol": ["python-sdk", "typescript-sdk", "inspector"],
"pydantic": ["pydantic", "pydantic-ai", "logfire"],
}
@mcp.resource("github://repos/{owner}/{repo}")
def github_repo(owner: str, repo: str) -> str:
"""A GitHub repository."""
return f"Repository: {owner}/{repo}"
@mcp.prompt()
def review_code(language: str, code: str) -> str:
"""Review a snippet of code."""
return f"Review this {language} code:\n{code}"
@mcp.completion()
async def handle_completion(
ref: PromptReference | ResourceTemplateReference,
argument: CompletionArgument,
context: CompletionContext | None,
) -> Completion | None:
if isinstance(ref, PromptReference) and argument.name == "language":
return Completion(values=[lang for lang in LANGUAGES if lang.startswith(argument.value)])
if isinstance(ref, ResourceTemplateReference) and argument.name == "repo":
if context is None or context.arguments is None:
return None
repos = REPOS_BY_OWNER.get(context.arguments.get("owner", ""), [])
return Completion(values=[repo for repo in repos if repo.startswith(argument.value)])
return None