Context engineering pipeline for Meshloop:
- Multi-language AST skeleton extraction (Rust, TypeScript, Python, Go, C#, PHP, C++, Markdown)
- Markdown AST document skeleton extraction with stable cache sentinels (ADR 0031)
- Public signature extraction and data-oblivious 1-bit/2-bit quantized retrieval (ADR 0029)
- Tier 1 bulk-reader provider resolution (CLI harnesses, Cloud APIs, Local Ollama)
- Prompt cache normalization for high cache hit rates (>80%)
- Token reduction metrics and verification