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mev-beta/docs/8_reports/enhancements/arbitrum_integration_plan.md
Krypto Kajun 850223a953 fix(multicall): resolve critical multicall parsing corruption issues 
- Added comprehensive bounds checking to prevent buffer overruns in multicall parsing
- Implemented graduated validation system (Strict/Moderate/Permissive) to reduce false positives
- Added LRU caching system for address validation with 10-minute TTL
- Enhanced ABI decoder with missing Universal Router and Arbitrum-specific DEX signatures
- Fixed duplicate function declarations and import conflicts across multiple files
- Added error recovery mechanisms with multiple fallback strategies
- Updated tests to handle new validation behavior for suspicious addresses
- Fixed parser test expectations for improved validation system
- Applied gofmt formatting fixes to ensure code style compliance
- Fixed mutex copying issues in monitoring package by introducing MetricsSnapshot
- Resolved critical security vulnerabilities in heuristic address extraction
- Progress: Updated TODO audit from 10% to 35% complete

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-10-17 00:12:55 -05:00

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Arbitrum Integration Enhancement Plan

Goal

Ensure all Arbitrum network integrations (sequencer monitor, ABI decoders, RPC failover) are production-grade and resilient.

Tasks

  1. Sequencer & Parser

    • Validate monitor.ArbitrumMonitor handles all transaction types; add tests with real block samples.
    • Remove placeholder logging in createArbitrumMonitor, confirm default path uses full sequencer reader.

  2. ABI Decoding

    • Expand coverage in pkg/arbitrum/parser for multicall variants, custom protocols.
    • Add fuzz/property tests for decoder correctness.

  3. Connection Management

    • Audit pkg/arbitrum/connection.go for failover, rate limiting, and health checks.
    • Document required environment variables (ARBITRUM_RPC_ENDPOINT, ARBITRUM_WS_ENDPOINT), default policies.

  4. Logging & Metrics

    • Ensure errors and reconnection attempts emit structured logs and Prometheus metrics.

  5. Docs

    • Update docs/6_operations/DEPLOYMENT_GUIDE.md with operator steps for Arbitrum endpoints.

References

  • pkg/arbitrum, pkg/monitor
  • docs/6_operations
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