locus-engine 🦀⚡

Deterministic AST Safety Guard, Lossless CST Green-Red Tree, 32 Enterprise Invariants, Inter-Procedural SSA Taint Engine, SIMD Hardware-Accelerated Vector Search, Multi-Agent Swarm OCC & 28-Tool Model Context Protocol Server in 100% Safe Rust.

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⚡ Overview & Vision

Modern AI code generation agents (Claude Code, Cursor, Copilot, Antigravity, Devin) and multi-agent swarms face critical engineering bottlenecks:

1. Probabilistic Syntax, Concurrency & Security Regressions: AI agents frequently introduce SQL injections, unhandled floating promises, React state race conditions, event listener leaks, path traversals, unclosed JSX and HTML tags, illegal conditional hook calls, server secret leaks in "use client" files, panic-inducing .unwrap() traps, circular memory leaks, and async-mutex deadlocks.
2. Multi-Agent Write Collisions & Workspace Drift: Autonomous agents working in parallel without symbol-level coordination overwrite concurrent workspace changes and break shared contracts.
3. Context Inflation & Blind Refactoring: Feeding entire source files into LLM prompts wastes up to 80% of token budgets, while modifying shared symbols without blast-radius and taint analysis causes silent downstream failures.

locus-engine (v1.6.0) bridges stochastic AI models and deterministic systems engineering through pure safe Rust in microsecond time:

• 🌲 Lossless Concrete Syntax Tree (query_cst): Pure-Rust Green-Red Tree architecture preserving 100% of formatting, comments, and trivia.
• 🛡️ 32-Pass Deterministic AST Safety Firewall (check_safety): Bitset-driven scanner enforcing 32 formal enterprise invariants in < 0.20 ms.
• 🌊 Inter-Procedural SSA Taint Engine v2 (audit_taint_path): Cross-file call-graph tracking, sanitizer proof chains, and cryptographically verified audit certificates with SHA-256 fingerprints.
• ⚡ SIMD Hardware-Accelerated Vector Search (simd_vector_search): AVX2 256-bit and ARM NEON 128-bit chunked arithmetic with zero-heap allocation query paths.
• 🐝 Swarm Consensus & Optimistic Concurrency Control (acquire_subtree_lease, verify_occ_token): Hierarchical wildcard module leases, monotonic OCC version tokens, and Wait-For Graph deadlock resolution.
• 🩹 Deterministic AST Self-Healing Engine (morph_ast, auto_remediate): Automatically closes unclosed JSX tags, fixes deep null property access, and hoists conditional React hooks.
• 💾 Multi-File ACID Workspace Transactions (begin_tx, stage_tx, commit_tx, rollback_tx): Staged in-memory AST verification ensuring zero disk corruption and zero workspace drift.
• 🔌 Model Context Protocol Server (28 Native Tools): JSON-RPC 2.0 stdio server providing 28 native sovereign tools for modern AI environments.

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🎬 Visual Showcase & Live Capabilities

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📊 Empirical Benchmarks & Performance Metrics (v1.6.0)

Benchmarked under optimized release profile:

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🏛️ System Architecture

flowchart TD
    subgraph MultiAgentSwarm ["Multi-Agent Swarm and Developer"]
        AgentA["Agent Alpha (Worker)"]
        AgentB["Agent Beta (Reviewer)"]
    end

    subgraph Governance ["Swarm Consensus and OCC Governance"]
        LeaseReg["LeaseRegistry: Wildcard Subtree Locks"]
        OCC["OCC Monotonic Versioning and Deadlock Resolution Engine"]
    end

    subgraph Ingestion ["Ingestion, CST and SIMD Search"]
        CST["Lossless Green-Red Tree CST"]
        SIMD["AVX2 and NEON Hardware-Accelerated Vector Search"]
    end

    subgraph SafetyPipeline ["AstGuard: 32-Rule Safety Firewall"]
        Invariants["32 Enterprise AST Invariant Passes"]
        Taint["Inter-Procedural SSA Taint Engine and TaintAuditCertificate"]
        AutoFix["AutoFixer: Deterministic Self-Healing and AST Morphing"]
    end

    subgraph TransactionCoordinator ["ACID Workspace Transaction"]
        ShadowBuf["ShadowBuffer: In-Memory Staging"]
        DiskCommit{"All Invariants and Files Pass?"}
        CommitOk["Atomic Disk Commit"]
        Rollback["Zero-Drift Rollback"]
    end

    subgraph RuntimeInterfaces ["Exposed Runtime Targets"]
        MCP["MCP Server (28 Native Tools)"]
        CLI["CLI Binary"]
        WASM["WebAssembly Bridge"]
        LIB["Pure Safe Rust Crate"]
    end

    MultiAgentSwarm --> Governance
    Governance --> Ingestion
    Ingestion --> SafetyPipeline
    SafetyPipeline --> TransactionCoordinator
    TransactionCoordinator --> RuntimeInterfaces

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📄 License & Commercial Rights

locus-engine is published under the Business Source License 1.1 (BSL 1.1). Non-commercial use is free under BSL terms. Commercial deployments require licensing from the author.