Exocortex v0.5.0

What's New

Knowledge Wiki System (Karpathy-inspired)

• Wiki compilation — compile memories into interlinked markdown articles
• Incremental wiki refresh — only recompile stale articles (memory_wiki_refresh)
• Obsidian live sync — incrementally sync memories to an Obsidian vault (memory_obsidian_sync)
• Query-to-wiki promotion — persist analyses as wiki articles (memory_promote)
• Knowledge lint — one-command health audit: contradictions, stale claims, orphans, suggested topics (memory_lint)
• Web clipper — one-click URL ingest via MCP or REST (memory_clip, POST /api/library/clip)

Retrieval Improvements

• 97.0% Recall@5 on LongMemEval (up from prior baseline)
• Two-pass FTS search — AND then OR strategy for better precision
• Auto query expansion — server-side domain synonym expansion for embeddings
• LLM re-ranking — optional re-rank pass on top-N results (opt-in via search.rerank_enabled)
• Retrieval regression gate — 7 golden queries including production friction queries

New MCP Tools

• memory_lint — comprehensive knowledge-base audit
• memory_wiki_refresh — incremental wiki update
• memory_promote — promote analysis to wiki article
• memory_clip — web clipper URL ingest
• memory_correct — correct a memory with supersession chain
• memory_job_health — job outcome tracking with alert thresholds
• memory_obsidian_sync — incremental Obsidian vault sync

Import & Export

• Obsidian vault import — parses YAML frontmatter, wikilinks, infers tiers from folder structure
• ChatGPT/Claude import — auto-tags by topic, weights longer conversations higher
• Source immutability — ingested URLs flagged immutable, excluded from consolidation

Intelligence

• Temporal expiry detection — auto-expires memories with "tomorrow", "by Friday", "in 3 days"
• Auto entity categorization — technologies (≥0.9) and organizations (≥0.85) auto-typed
• LLM consolidation summaries — optional LLMSummarizer interface for higher-quality merges
• Provenance chain tracking — derivation depth, source trust, origin pipeline
• Content hash dedup — prevents duplicate consolidation summaries

Security

• Path traversal fixes, SQL injection hardening
• x402 replay attack prevention
• SAVEPOINT-based transaction nesting

Performance

• MCP tools consolidated 38 → 21
• Prepared statement caching, batch embeddings
• Embedding model selector (ConvoMem benchmark)