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Real-World Applications

While the Case Studies chapter demonstrates aspect-rs patterns in isolation, this chapter documents real-world applications of the aspect-rs methodology to production open-source projects.

These applications serve as validation for the RE2026 research project, showing that AOP patterns work across different Rust architectures in practice, not just in contrived examples.

Projects

  • ZeroClaw – A 130K-line Rust AI agent framework (~29K stars). Fine-grained Tool trait with per-tool wrappers.
  • Claw-Code-Parity – A Rust port of an AI agent harness (~3.4K stars). Coarse-grained ToolExecutor trait with executor-level wrappers.
  • Dual-Repo Progress Report – Comparative analysis and contribution progress across both projects.

Key Finding

Both projects exhibit a 92% applicability rate (11 out of 12 aspect-rs patterns) despite having fundamentally different tool system architectures. This confirms that crosscutting concerns are orthogonal to business logic design choices – they emerge from the same non-functional requirements regardless of abstraction granularity.