ID360-Bridge: A Ledger-Based Action Architecture for Attributable Human Agency Under Post-Stroke Executive Impairment

Post-stroke cognitive impairment can affect executive functions involved in planning, sequencing, monitoring, rule-following, and complex goal-directed action. Such impairment may remain functionally relevant after clinically mild stroke and may not be fully captured by brief screening. The resulting problem extends beyond accessibility: a person may retain preferences, goals, rights, and legal authority while their functional ability to express, review, supervise, or execute complex action fluctuates. Existing work already provides supported decision-making, bounded authorization, revocation, runtime policy enforcement, monitoring, provenance, and workflow automation; these are not claimed as novel primitives. ID360-Bridge proposes a capacity-adaptive socio-technical action architecture that couples those established governance mechanisms to an interaction layer designed for a human principal whose functional ability to authorize and supervise execution may fluctuate, while authorization validity remains explicitly represented and is not silently changed by interface adaptation. The architecture distinguishes attributable authorization (L0), capacity-adaptive interaction (L1), an explicit runtime constraint/action-envelope function, bounded delegated execution (L2), and a persistent authorization and context state. Each authorization event also records the interaction conditions under which it was obtained; those conditions are process metadata, not a capacity score and not evidence that the person understood or failed to understand the decision. The Ledger Principle is used as a typed vocabulary and genealogy for state-to-consequence relations, not as an evidentiary or explanatory dependency. The proposed contribution is therefore narrower than bounded delegation itself: it is the coupling between changing interaction conditions and independently governed authorization validity in a post-stroke assistive context. ID360-Bridge remains a conceptual and early-validation architecture. Claims that it reduces task burden, preserves agency in practice, prevents downstream harm, or improves clinical outcomes remain hypotheses requiring staged empirical evaluation.