Optional node: calibrated historical base-rates under the stock analysis

[grahammccain]

TradingGoose nails the individual-stock-analysis + portfolio split that a lot of frameworks blur — nice work.

One optional addition that tends to earn its place: for a (ticker, date), a calibrated forward-return distribution over the cohort of real historical analogs — receipts under the analysis rather than another confident narrative (the "Oracle Fallacy" most agents fall into). Historical, never a forecast; the 80% band held 80.8% across 302,880 cases. Chart Library serves it as an MCP node.

Because you clearly care about showing the work, the reference crew includes a with/without answer-lift comparison so the benefit is measurable, not asserted: https://github.com/grahammccain/chart-library-agent-crew

Glad to open an off-by-default PR adding it as an optional node — and equally fine if it's not for you.

— Graham, chartlibrary.io