Diagnostic-only • Behavioural evidence • Bounded engagements

Invariant Systems

Invariant Systems is a structural diagnostic practice for adaptive systems. We classify behavioural regimes, identify invalid assumptions, and mark the boundaries of valid inference from behavioural evidence.

We do not optimise, tune, inspect model internals, or predict outcomes. We offer one bounded service: the SSDA.

Read the SSDA Check eligibility

What you get

Regime classification (stable / marginal / drifting / locked / outside valid learning regimes)
Invalid assumptions called out explicitly (stationarity, feedback, evaluation reliability)
Boundaries for safe reasoning: what cannot be inferred under current coupling
Low burden intake using behavioural evidence (no internals required)

Contact

Quiet inbound only. Send a short note with the system class and the evidence types you can provide.

Email: contact@invariantsystems.co.uk

If you are seeking optimisation, architecture advice, root-cause fixes, or internal audits, this is not the right fit.