LLMs and embeddings: separate tasks, even with one provider
Distinguish text generation from vector generation, then verify ChatCrystal model settings, connection tests, and index rebuilding boundaries.
曾亮懿
#ChatCrystal
#AI
#Vector search
Page 5 of 6
Blog
Notes on frontend engineering and AI coding: problems, implementation choices and lessons learned.
曾亮懿 Note Relations and Graph Views: Discover, Project, and Verify
Trace ChatCrystal relation APIs, candidate discovery, and graph projections, keeping generated edges and tag co-occurrence within verified boundaries.
曾亮懿
#ChatCrystal
#Knowledge graph
#Relations
Ollama Local Workflow: Generation, Vectors, and Retrieval
Run local LLMs with Ollama: test generation endpoints, embedding dimensions, vector consistency, and ChatCrystal integration boundaries offline.
曾亮懿
#ChatCrystal
#Ollama
#Local-first
Recover a debugging solution: retrieve, read, then verify reuse
Use a constructed debugging scenario to check notes, vectors, and search results, then compare the original conversation with the current project.
曾亮懿
#ChatCrystal
#Semantic search
#Debugging
Semantic Search and Context: Finding Hidden Code Dependencies
Combine vector search with one-hop graph relation expansion in code refactoring, keeping similarity scores, candidates, and sources verifiable on disk.
曾亮懿
#ChatCrystal
#Semantic search
#Knowledge graph
Semantic Search: Candidate Deduplication and Graph Context
Trace query vectors, candidate growth, lexical boosts, and relation expansion in ChatCrystal, distinguishing list filtering from semantic retrieval.
曾亮懿
#ChatCrystal
#Semantic search
#RAG
Vectra index recovery: separate state, cleanup, and rebuilding
Diagnose semantic-search failures across note status, Vectra files, and cleanup tasks, then choose a single-note or full-index recovery path.
曾亮懿
#ChatCrystal
#Vectra
#Troubleshooting
Integrating PaddleOCR-VL: Building a Document Inspection Tool
Connect to Baidu PaddleOCR-VL using Python standard library: manage async polling, coordinate bounding boxes, and build a document proofreading UI.
曾亮懿
#Python
#JavaScript
#PaddleOCR-VL
#Document Parsing
Why translate: none Failed Only in Production
Debug Lightning CSS transform merging in production. Learn why !important fails and use Tailwind variable overrides and layer orders to fix displacement.
曾亮懿
#CSS
#Tailwind
#Build
#Debugging
Exporting ChatCrystal Notes to Obsidian
Export every page of ChatCrystal notes, build Obsidian links with stable IDs, and distinguish a readable snapshot from editing and incremental synchronization.
曾亮懿
#ChatCrystal
#Obsidian
#Node.js
#Knowledge management
Choosing a Local Vector Store: Vectra, Chroma, and hnswlib
Compare Vectra, Chroma, and hnswlib through ChatCrystal’s deployment constraints: integration, retrieval cost, backups, and recovery boundaries.
曾亮懿
#ChatCrystal
#TypeScript
#Vector search
#Architecture
Understanding Five AI Conversation Data Formats
How ChatCrystal parses Claude Code, Codex, Cursor, Trae, and Copilot records, and where JSONL messages, event streams, SQLite KV stores, and snapshots differ.
曾亮懿
#ChatCrystal
#TypeScript
#AI
#Data parsing
From writing to code
Explore ChatCrystal, developer tools and daily learning notes on my GitHub. Questions about the implementation are welcome.