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Align with spec #3002: optional clientInfo, serverInfo in result _meta (#3143)

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Max 2026-07-23 12:00:36 +01:00 • committed by GitHub
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14
examples/stories/reconnect/client.py
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@ -15,7 +15,11 @@ async def main(targets: TargetFactory, *, mode: str = "auto") -> None:
discovered = client.session.discover_result
assert discovered is not None, "mode='auto' against a modern server populates discover_result"
assert client.protocol_version == LATEST_MODERN_VERSION
assert client.server_info.name == "reconnect-example"
# On the 2026 era, server identity is an optional serverInfo stamp in the
# result _meta; an anonymous server reads as None. This one stamps it.
info = client.server_info
assert info is not None, "the server stamps serverInfo into its results"
assert info.name == "reconnect-example"
assert LATEST_MODERN_VERSION in discovered.supported_versions
result = await client.call_tool("add", {"a": 2, "b": 3})
@ -28,11 +32,13 @@ async def main(targets: TargetFactory, *, mode: str = "auto") -> None:
# Reconnect: a version pin plus the cached DiscoverResult adopts the prior state with
# zero round-trips on entry. A Client cannot be re-entered after exit, so targets()
# yields a fresh one. Without prior_discover= a bare pin would synthesize a blank
# server_info — the cache is what makes the era-neutral accessors useful here.
# yields a fresh one. Without prior_discover= a bare pin would leave server_info
# None — the cache is what carries the server's identity stamp across reconnects.
async with Client(targets(), mode=LATEST_MODERN_VERSION, prior_discover=rehydrated) as second:
assert second.protocol_version == LATEST_MODERN_VERSION
assert second.server_info.name == "reconnect-example"
info = second.server_info
assert info is not None, "the cached DiscoverResult carries the serverInfo stamp"
assert info.name == "reconnect-example"
assert second.server_capabilities.tools is not None
assert second.session.discover_result == rehydrated