frankensearch-integration-for-rust-projects
Made by JeffComplete guide for integrating frankensearch hybrid search into Rust projects. Covers fresh integration, fixing stalled/buggy integrations, and migrating from ad-hoc search. Use when: frankensearch, hybrid search, two-tier search, TwoTierSearcher, IndexBuilder, EmbedderStack, RRF fusion, semantic search integration, search migration, search broken, search stalled.
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Frankensearch Integration for Rust Projects
A start-to-finish guide for integrating frankensearch hybrid search into any Rust project, from green-field to migration to diagnosing stalled integrations. Drawn from 3 production integrations with 82+ bugs cataloged.
- 4-phase workflow: Fresh Integration, Migration, Diagnosis, Optimization
- 27 real pitfalls cataloged with root causes and fixes, drawn from 82+ production bugs
- Complete frankensearch public API reference (IndexBuilder, TwoTierSearcher, EmbedderStack)
- 4 sync-to-async bridge patterns with full Rust implementations
- 9-step feature-gated migration playbook with RRF precision parity testing
- 3 detailed case studies: xf (full cutover), CASS (partial), mcp_agent_mail (bridge pattern)
Distilled from real integration work across CASS (session search), xf (X archive search), and mcp_agent_mail_rust (agent coordination), this 2,248-line skill turns those lessons into playbooks.
Includes: complete API reference, 4 sync-to-async bridge patterns, a 9-step migration playbook with parity testing, 27 cataloged pitfalls across 8 categories, 5-level diagnostic triage, and 3 detailed case studies showing what worked and what broke.
The cardinal rule: use TwoTierSearcher, not custom orchestration. Every project that rolled its own eventually ripped it out.