[duplicate-code] Duplicate Code Analysis Report

[github-actions]

Analysis of commit 0002a45a80fc9f317a02a360f672148395c74b40 — triggered by @lpcox

Summary

Static analysis of the Go source files changed in the latest push found 3 significant duplication patterns across the config, mcp, and logger packages. Two patterns involve pure copy-paste blocks (no existing abstraction); one involves intentional-but-growing per-type boilerplate that is already partially consolidated.

Detected Patterns

This analysis found 3 significant duplication patterns:

1. W3C Hex-ID validation copy-paste in validation_tracing.go — Severity: Medium — See sub-issue [duplicate-code] Duplicate Code Pattern: W3C Hex-ID Validation Copy-Paste in validation_tracing.go #7559
2. listTools/listResources/listPrompts structural clone in connection_methods.go — Severity: Low — See sub-issue [duplicate-code] Duplicate Code Pattern: listTools/listResources/listPrompts Structural Clones in connection_methods.go #7560
3. Logger Init*/Close*/global-var boilerplate across 5 files — Severity: Low — See sub-issue [duplicate-code] Duplicate Code Pattern: Logger Init/Close/Global-Var Boilerplate Across 5 Files #7561

Overall Impact

• Total Duplicated Lines: ~128 lines across 3 patterns
• Affected Files: 7 source files
• Maintainability Risk: Low-to-Medium — the most actionable fix (validation_tracing.go) is self-contained and low-risk
• Refactoring Priority: Pattern Configure as a Go CLI tool #1 first (quick, isolated win); patterns Lpcox/initial implementation #2 and Lpcox/initial implementation #3 are lower priority given existing partial abstractions

Next Steps

1. Review individual pattern sub-issues for detailed analysis
2. Start with [duplicate-code] Duplicate Code Pattern: W3C Hex-ID Validation Copy-Paste in validation_tracing.go #7559 (validation helper) as a safe, isolated refactor
3. Evaluate patterns Lpcox/initial implementation #2 and Lpcox/initial implementation #3 against the Go SDK constraints and API-stability trade-offs described in each sub-issue

Analysis Metadata

• Analyzed Files: 120+ Go source files (excluding *_test.go and test/)
• Detection Method: Semantic analysis + structural pattern matching
• Commit: 0002a45a80fc9f317a02a360f672148395c74b40
• Analysis Date: 2026-06-15