Batho v1 Technical Whitepaper

Bidirectional AST Traversal & Hypergraph Orchestrator

Document Version: 1.0.0
Date: May 2026
Classification: Public — Enterprise Technical Reference
Author: Batho Core Team
Status: Production-Ready

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Executive Summary

Batho (Bidirectional AST Traversal & Hypergraph Orchestrator) is a deterministic, production-grade code intelligence engine that transforms raw codebases into queryable, time-aware structured hypergraphs. Version 1 delivers a complete toolchain for AST extraction, semantic graph construction, LLM-optimized context compression, temporal versioning, and governance automation — designed for polyglot enterprises managing millions of lines of code across hundreds of repositories.

Key Value Propositions

Metric	Value
Supported Languages	40+ via tree-sitter
Context Compression	Up to 10x for LLM injection
Incremental Patch Speed	10–100x faster than full re-index
Test Coverage	859+ automated tests
Cache Hit Rate	>95% on typical PR-sized changes
Snapshot Retention	90 days default, configurable
Max Indexed Files	200,000 per repository

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System Architecture at a Glance

Figure 1: Batho v1 System Architecture Overview - High-level data flow from source inputs through the core engine to consumption interfaces.

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List of Figures

Figure	Title	Section
Figure 1	Batho v1 System Architecture Overview	Overview
Figure 2	High-Level System Architecture	Architecture Overview
Figure 3	Data Flow Pipeline	Architecture Overview
Figure 4	Subsystem Interactions	Core Subsystems
Figure 5	Graph Consistency Model	Code Graph Engine
Figure 6	Cross-File Resolution Process	Code Graph Engine
Figure 7	Token Budget Algorithm	BSG Compression
Figure 8	Incremental Patch Lifecycle	Time Machine
Figure 9	Git Hooks Architecture	Git Hooks Enterprise
Figure 10	Dashboard Architecture	Interactive Dashboard
Figure 11	Bridge Modes	Artifact Bridge & MCP
Figure 12	Security Architecture Overview	Security & Governance
Figure 13	Zero-Code-Execution Guarantee	Security & Governance
Figure 14	BSG Interceptor Pipeline	Security & Governance
Figure 15	Interceptor Sequence	Security & Governance
Figure 16	Audit Logging Pipeline	Security & Governance
Figure 17	Integrity Chain	Security & Governance
Figure 18	Chain of Custody Flow	Security & Governance
Figure 19	Threat Model	Security & Governance
Figure 20	Cache Strategy	Performance & Scalability
Figure 21	Deployment Architecture	Deployment & Operations
Figure 22	Configuration Loading Flow	Deployment & Operations
Figure 23	CI/CD Pipeline Flow	Deployment & Operations
Figure 24	Command Taxonomy	Deployment & Operations
Figure 25	Monitoring Stack	Deployment & Operations
Figure 26	Backup Flow	Deployment & Operations
Figure 27	Schema Dependency Graph	Appendix

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Table of Contents

1. Architecture Overview
2. Core Subsystems
3. Deterministic Code Graph Engine
4. BSG Compression & LLM Injection
5. Time Machine & Incremental Patching
6. Git Hooks Enterprise
7. Interactive Dashboard
8. Artifact Bridge & MCP Integration
9. Security & Governance
10. Performance & Scalability
11. Deployment & Operations
12. Appendix: Schema Reference

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Document Control

Version	Date	Author	Changes
1.0.0	2026-05-17	Batho Core Team	Initial whitepaper for Batho v1

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For the latest documentation, visit:

• CLI Reference: batho --help
• Dashboard: batho dashboard --root .
• API Docs: batho bridge serve --root .