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Import revised sep and update the sep number (#21)

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Interceptor SEP has been moved from
https://github.com/modelcontextprotocol/modelcontextprotocol/issues/1763
to
https://github.com/modelcontextprotocol/modelcontextprotocol/issues/2624
.
This PR updates the SEP references over the codebase and import revised
SEP

Signed-off-by: Ukjae Jeong <jeongukjae@gmail.com>
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Ukjae Jeong 2026-06-16 05:16:21 +01:00 • committed by GitHub
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4
csharp/sdk/CLAUDE.md
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@ -1,7 +1,7 @@
# MCP Interceptors - C# SDK
## What this is
C# implementation of gateway-level interceptors from [SEP-1763](https://github.com/modelcontextprotocol/modelcontextprotocol/issues/1763). NuGet package additive to the official [C# MCP SDK](https://github.com/modelcontextprotocol/csharp-sdk) (v1.1.0). Focus is on the protocol-level extension (client → interceptor server → server), NOT in-process middleware.
C# implementation of gateway-level interceptors from [SEP-2624](https://github.com/modelcontextprotocol/modelcontextprotocol/issues/2624). NuGet package additive to the official [C# MCP SDK](https://github.com/modelcontextprotocol/csharp-sdk) (v1.1.0). Focus is on the protocol-level extension (client → interceptor server → server), NOT in-process middleware.
## Build & test
```
@ -19,7 +19,7 @@ dotnet test # 66 tests across the interceptor test project
**`InterceptingMcpClient` is composition**: `McpClient` has an internal constructor; subclassing is `[Experimental]`. We wrap it as a concrete class exposing `.Inner` for direct access.
## Chain execution order (SEP-1763)
## Chain execution order (SEP-2624)
- **Request phase (sending)**: Mutations (sequential by priority ↑) → Validations (parallel) → Sinks (fire-and-forget)
- **Response phase (receiving)**: Validations (parallel) → Sinks (fire-and-forget) → Mutations (sequential by priority ↑)
- Lower `PriorityHint` executes first; ties broken alphabetically by name