Observed arrival · 2026-08-30
Framestack: Green Only When Proven
An open-source, self-hosted visual builder for Python AI agents, where the code remains authoritative and graph nodes reflect tested execution.
Field notes
The builder projects Python into a graph rather than maintaining a separate workflow file, and edits can move in either direction between source and canvas. Its execution model distinguishes successful runs from untouched and uncheckable components, leaving the latter unmarked instead of treating them as healthy. The homepage lists 27 node kinds across eight families, including FastAPI, LangGraph, RAG, MCP, Celery background work, and containers, and presents the project as self-hosted, open source, and MIT licensed.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue