Proven templates. AI-powered execution.
Requirements and architecture specs are not afterthoughts. They are living contracts that agents reference during generation and testing.
Our templates de-risk the agentic cycle, and AI-powered execution makes that cycle run at machine speed. Management gains traceability: every line of code can be mapped back to documented requirements and architectural decisions.
Where human judgment defines the guardrails, agentic execution fills the lanes. The templates keep both in sync.
Strategic decisions stay human. Tactical execution goes agentic. The templates are the handshake that makes both possible.The systems42 idea in one sentence
Three loops keep the spec alive.
AI fills and checks the spec. Humans decide where it matters.
Ingest
Humans provide raw input. AI turns it into clean markdown, files it into the matching spec sections, cross-links it and asks when something does not fit.
AI, started by a humanAudit
Time-triggered or on demand, AI checks the spec against rules, guardrails and constraints and adds every finding to the backlog.
AI, scheduled or on demandClarify
Humans pick an open point, discuss it with the AI, and have the outcome written back into the spec or the rules.
Humans and AI togetherOne spec. Eighteen drawers.
req42 for requirements, arc42 for architecture, six sections they share. Together they are the single source of truth from which code is generated and tested.
Both templates have been used for more than 20 years, in many countries and domains. systems42 does not replace them. It makes them executable.
req42
arc42
Common
Stay tuned. Public release early 2027.
We are testing the approach with many examples. As soon as we have solid results we will publish systems42 so that you can start directly with your own projects.
Part of the 42 family.
For more than 20 years we have created pragmatic open-source tools to support your development efforts.