v0.5.0

What's New in v0.5.0

MCP Structured Content & Compact Mode

• All MCP tools now return dual content (text summary) + structuredContent (JSON)
• Compact mode (compact: true) omits provenance receipts for ~60% smaller responses
• MCP query guide prompt for tool selection guidance

Search & Retrieval Improvements

• Reciprocal Rank Fusion (RRF) replaces naive merge for hybrid search — better result ordering
• Smart expansion detection skips unnecessary vector search when FTS5 already provides strong matches
• Enhanced snippet extraction with better context windows

Provenance & Traceability

• Line-range references in provenance for precise source linking
• Fact dependency graph visualization via BFS traversal

User-Friendly Identifiers

• Docid short hash system — memorable identifiers instead of raw integer IDs

Caching & Performance

• LLM response caching schema and store methods
• Structured JSON logging with configurable level filtering

Ingestion & Content Processing

• Configurable tool capture filtering for ingestion
• ContentSanitizer now strips system-reminder, local-command-caveat, and other Claude Code internal tags
• Relative time formatting in recall output (just now → Xm ago → Xh ago → Xd ago)

Developer Tools

• --brief flag for doctor command for automated workflows

Bug Fixes

• Preserve SQLite PRAGMAs across connection reconnects
• Fix timestamp-only churn in publish output

Internal

• Significant code quality improvements: method decomposition, N+1 query fixes, duplicate extraction
• Research studies: QMD restudy (plugin format, structured MCP) and claude-supermemory study (context injection)

Full Changelog: https://github.com/codenamev/claude_memory/blob/main/CHANGELOG.md#050---2026-02-04