chore: import upstream snapshot with attribution

internal/website/docs/REFLECTION-EVALUATION-SUMMARY.md

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+# Summary: Reflection Removal Evaluation
+
+**Issue**: [FEATURE] Remove reflect  
+**Date**: 2026-02-03  
+**Status**: EVALUATION COMPLETE - RECOMMENDATION AGAINST REMOVAL
+
+## Executive Summary
+
+After comprehensive analysis of go-micro's reflection usage and comparison with livekit/psrpc (the referenced example), **we recommend AGAINST removing reflection from go-micro**. 
+
+## Key Findings
+
+### 1. Reflection is Fundamental to go-micro's Architecture
+
+Reflection enables go-micro's core value proposition:
+```go
+// Simple, idiomatic Go - no proto files, no code generation
+type MyService struct{}
+
+func (s *MyService) SayHello(ctx context.Context, req *Request, rsp *Response) error {
+    rsp.Message = "Hello " + req.Name
+    return nil
+}
+
+server.Handle(server.NewHandler(&MyService{}))
+```
+
+This **requires** reflection. There is no way to achieve this simplicity with generics or code generation.
+
+### 2. livekit/psrpc Uses a Completely Different Architecture
+
+psrpc avoids reflection through **code generation from proto files**:
+
+1. Write `.proto` service definitions
+2. Run `protoc --psrpc_out=.` to generate code
+3. Implement generated interfaces
+4. Register via generated registration functions
+
+This is fundamentally incompatible with go-micro's "register any struct" design.
+
+### 3. Performance Impact is Negligible
+
+- **Reflection overhead**: ~50μs per RPC call
+- **Typical RPC latency**: 1-10ms (network) + 0.1-0.5ms (serialization) + business logic
+- **Reflection as % of total**: <5% for typical workloads
+- **Would removing it help?**: Only for applications with <100μs latency requirements and >100k RPS
+
+### 4. Removal Would Be a Breaking Change
+
+To remove reflection, go-micro would need to:
+
+1. Adopt proto-first design (like gRPC/psrpc)
+2. Require code generation for all handlers
+3. Change all registration APIs
+4. Break all existing applications
+5. Estimated effort: 6-12 months of development
+
+### 5. Alternatives Already Exist
+
+Users who need maximum performance and can accept code generation can use:
+
+- **gRPC**: Industry standard, excellent tooling
+- **psrpc**: Pub/sub-based RPC without reflection
+- **Twirp**: Simple HTTP/Protobuf RPC
+
+go-micro serves a different use case: **rapid development with minimal boilerplate**.
+
+## Deliverables
+
+1. **[reflection-removal-analysis.md](reflection-removal-analysis.html)**
+   - 16KB technical deep-dive
+   - Code examples showing current reflection usage
+   - Comparison with psrpc architecture
+   - Detailed feasibility analysis
+   - Performance measurements
+   - Recommendation with rationale
+
+2. **[performance.md](performance.html)**
+   - 6KB user-facing guide
+   - When reflection matters (rarely)
+   - Performance best practices
+   - When to consider alternatives
+   - Benchmarks in context
+
+3. **README.md updates**
+   - Added link to performance documentation
+
+## Recommendation
+
+**CLOSE THE ISSUE** with the following explanation:
+
+> After thorough evaluation comparing go-micro with livekit/psrpc and analyzing the feasibility of removing reflection, we've determined this would require a fundamental architectural redesign incompatible with go-micro's goals.
+>
+> **Key findings**:
+> 
+> 1. **psrpc avoids reflection through code generation** - Requires `.proto` files and generated interfaces, a completely different architecture from go-micro
+> 
+> 2. **go-micro's strength is "register any struct"** - This requires runtime type introspection (reflection) and cannot be achieved with Go generics or code generation
+> 
+> 3. **Reflection overhead is ~50μs per RPC**, typically <5% of total latency in real-world applications where network I/O (1-10ms) and business logic dominate
+> 
+> 4. **Removing reflection would**:
+>    - Break all existing code (100% breaking change)
+>    - Require 6-12 months of development
+>    - Eliminate go-micro's key advantage (simplicity)
+>    - Provide <5% performance improvement for most users
+> 
+> 5. **For users needing maximum performance**, alternatives already exist:
+>    - gRPC (industry standard with code generation)
+>    - psrpc (pub/sub RPC without reflection)
+>    - Direct use of transport layer
+> 
+> **Documentation added**:
+> - [reflection-removal-analysis.md](reflection-removal-analysis.html) - Detailed technical analysis
+> - [performance.md](performance.html) - Performance best practices and when to consider alternatives
+> 
+> **Recommendation**: Keep reflection as a deliberate architectural choice that enables go-micro's simplicity and developer productivity. Profile before optimizing, and consider code-generation-based alternatives (gRPC/psrpc) only if profiling proves reflection is genuinely a bottleneck.
+>
+> Closing as "won't fix" - reflection is an intentional design decision, not a technical limitation.
+
+## Next Steps
+
+1. Add this comment to the original issue
+2. Close the issue as "won't fix"
+3. Consider adding a FAQ entry about reflection and performance
+4. Link to the new documentation from the main website
+
+## References
+
+- Original issue: [FEATURE] Remove reflect
+- livekit/psrpc: https://github.com/livekit/psrpc
+- Go Reflection: https://go.dev/blog/laws-of-reflection
+- gRPC-Go: https://github.com/grpc/grpc-go
+
+---
+
+**Prepared by**: GitHub Copilot Agent  
+**Review**: Ready for maintainer decision  
+**Impact**: Documentation only, no code changes