More MCP tools backfired: knowledge graphs fixed shallow agent answers in a stock research MCP
SnowSilent7695 · reddit · 2026-09-03
A data analyst shares three months of lessons from a stock-research MCP: a tool-per-question design produced superficially correct but shallow answers, and adding tools or instructions didn't help. Rebuilding the foundation around better data models and knowledge graphs markedly improved answer depth — e.g., the MCP wasn't surprised by a negative market reaction to strong headline earnings, unlike ChatGPT. His takeaway: invest in data modeling, not tool count.
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