Why does Claude Code use Markdown files instead of vector databases ?

Markdown keeps it dead simple—no infra, live LLM picks semantically. Vectors scale but shallow-match and drift.

What are the four memory types in Claude Code?

User (prefs), feedback (wins/losses), project (decisions), reference (externals). Hard boundaries, no tag mess.

Nope—forces sharp curation. Users with 200+ prune junk, write better descriptions. Behavioral win.

Claude Code's memory system bets big on simplicity—Markdown files over vector DBs. It's a middle finger to AI complexity, and it just might work.

theAIcatchup Apr 08, 2026 4 min read 28 views

Claude Code prioritizes live code reads over stored facts to avoid memory drift. 𝕏
Four strict memory types enforce clarity over free-form tags. 𝕏
LLM queries beat vectors for small-scale, transparent retrieval in coding sessions. 𝕏

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Community-driven. Code-first.

#AI memory systems #Anthropic #Claude Code #vector databases

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Originally reported by Dev.to