Luna Agent – Custom AI agent in ~2300 lines of Python, no frameworks

Show HN: Luna Agent – Custom AI agent in ~2300 lines of Python, no frameworks

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Hey HN. I evaluated three agent frameworks for a homelab project, one had 400K lines of code (and 42K exposed instances on Shodan), one was 9 days old, and the third was so thin I'd rebuild most of it anyway. None worked for me.So I built my own in ~2300 lines of Python. No frameworks, 8 runtime dependencies, 106 tests.What it does: - Persistent memory via SQLite (FTS5 keyword search + sqlite-vec embeddings + recency decay, fused with Reciprocal Rank Fusion) - MCP tool integration — add capabilities by editing a JSON file - Native tools with safety guardrails (bash blocklist, timeouts, output caps) - Discord interface with session isolation - Structured JSON logging for every operation - Con

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Website: nonatofabio.github.io/blog/post.html?slug=luna_agent