Show HN: LangGraph architecture that scales (hexagonal pattern, 110 tests)

Summary

SageCompass SageCompass is an augmented decision system that checks whether a business idea actually needs AI before anyone spends time and money building it. You Do What? “It's a virtual consultant that applies consistent logic to every AI idea and tells you - with numbers - if it’s worth doing or not.” Human equivalent SagePass equivalent Consultant asking "What problem are we solving?" Stage 1 – Problem framing & information gathering Analyst turning that into measurable goals Stage 2 – Goals & KPIs Data scientist checking "Do we have data for this?" Stage 3 – Feasibility Executive deciding "Is this worth doing?" Stage 4 – Decision synthesis Encompassing roles/Agents (v4) Agent Simple metaphor Stage Problem Framing Agent Business analysis Stage 1 Business Information Agent Business analysis Stage 1 Business Goal Agent Strategy translator Stage 2 KPI Agent Performance analysis Stage 2 Eligibility Agent Eligibility specialist Stage 3 Solution Design Agent Senior Engineer Stage 4 Cost estimation Agent Operation Manager Stage 4 Decision Agent Executive summarizer Stage 4 Project structure Local requirements Python 3 (>=v3.13) uv (>=v0.9.13) ddev (>=v1.24.10) Directory structure . ├── docs/ # Documentation assets │ ├── mermaids/ # Mermaid exports/diagrams │ └── assets/ # Images, htmls ├── drupal/ # Drupal site root/ │ ├── .ddev/ # DDEV orchestration │ └── README.md ├── gradio-ui/ # Runnable Gradio UI surface (uv-managed) │ └── README.md ├── langgraph/ # Runnable LangGraph backend (uv-managed) │ └── README.md ├── AGENTS.md # Top level AGENTS directives (Codex mirror) ├── CLAUDE.md # Top level CLAUDE directives ├── CHANGELOG.md # Required changelog (update under [Unreleased]) ├── README.md # This file └── LICENSE # MIT Getting started Install tooling Install DDEV Install uv and Python 3.12+. Create the virtual environments for the different layouts # Installing Drupal ddev start ddev drush site:install --existing-config -y ddev drush uli # to get the login url. IMPORTAN...