Memory Doesn't Equal Expertise: Builders Ask Where Domain-Specific Agents Get Their Knowledge

sartomiki · reddit · 2026-09-10

The poster observes an awkward plateau in agent tooling: persistent context is starting to work — memory layers, vector stores, and MCP servers holding state across sessions — but few agents show real depth in a single domain. Most remain a generalist model with better memory.

His core argument: memory eliminates re-explaining, not the lack of expertise. An agent that remembers every contract you pasted still isn't a legal expert; it guesses once you ask something beyond what you provided.

He asks the community: where does knowledge for domain-specific agents actually come from (your own docs, curated datasets, fine-tuning)? Where does it fall short? And is "generalist + good retrieval" honestly enough for most use cases?

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