An agent-first Python CLI for Richards Heuer's Analysis of Competing Hypotheses (ACH) method. Langley stores a durable audit trail, compares evidence across hypotheses, supports sensitivity analysis, and generates portable EDSL Jobs for AI-assisted analytical work.
Read the illustrated guide · View the source
python -m pip install -e .
langley guide
langley init --title "Outage analysis" --question "What caused the outage?"
langley nextJSON is the default output. Add --human for terminal-oriented output. See
SPEC.md for the complete contract.