Add a first-party .NET client (proposal)#206
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First-party .NET client for the Agent Host Protocol: a hand-written JSON-RPC client + multi-host runtime over a pluggable ITransport (WebSocket transport included), generated wire types, and DI integration. Includes OpenTelemetry-native self-instrumentation (a single ActivitySource + Meter named from the generated AhpTelemetryNames holder), the host-* dropped- event stream values from the shared telemetry contract, reconnect-supervisor metrics, an OtelExport example, and recorder-based telemetry tests.
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A complete .NET / NuGet client for AHP 0.3.0, at full cross-language parity with the Rust / Kotlin / Swift / TypeScript / Go clients — including the annotations channel (#195).
Opening as a draft: a 6th first-party client is a maintenance + ownership commitment only you can sign off on, so I'd love a scope decision before you spend review time. I'm happy to keep it updated as the protocol evolves.
What's here
Microsoft.AgentHostProtocol.Abstractions(generated wire types + transport/serializer interfaces),Microsoft.AgentHostProtocol(reducers +AhpClient+MultiHostClient),Microsoft.AgentHostProtocol.WebSockets.scripts/generate-csharp.ts(wired intogenerate.ts+ the CI generated-source-freshness check) — a protocol change is one regen, not N hand-edits.Design notes
[JsonPolymorphic](which drops unknown variants).JsonNamingPolicy+ records over per-property attributes for concision.Notes for review
Microsoft.AgentHostProtocol.*(yours). I'll wire the pack-and-publish workflow to match your TS/Kotlin lane, leaving the signing key on your side. (Ownership and publishing are the scope questions in A .NET client for AHP #214.)main. This PR's unique change isclients/dotnet/+ the codegen / CI / release wiring.The scope decision lives in #214: if you want a first-party .NET client, I'll own it, maintain it, and wire the publishing under
Microsoft.AgentHostProtocol.*.