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Architecture Decision Records

Each ADR records a structural judgment about how autonomous AI agents should be built and operated — discovered through implementation and operation of contemplative-agent, not prescribed top-down.

Index

ADR	Title	Status
0001	Security by Absence	accepted
0002	Deterministic Prohibition at the Scaffolding Layer	accepted
0003	Untrusted Content Boundary	accepted
0004	Single External Adapter Per Agent	accepted
0005	Human Approval Gate for Behavior-Modifying Commands	accepted
0006	Causal Traceability	accepted
0007	Scaffolding Visibility	accepted
0008	One Agent, One Human (experimental)	experimental
0009	Triage Before Autonomy (experimental)	experimental
0010	Phase Separation Between Design and Operation (experimental)	experimental

ADR-0001, 0002, and 0003 form a prohibition-strength hierarchy: absence (strongest) → scaffolding enforcement → untrusted boundary (probabilistic, weakest). Walk the hierarchy top-down when designing a prohibition.

ADRs 0009 and 0010 form a triage pair. ADR-0009 sits before the other ADRs in the order of application: it triages whether the work is in the Autonomous Agentic Loop Quadrant (where all ten ADRs are load-bearing), the LLM Workflow Quadrant (where 0001–0007 apply), or out of scope (Script / Algorithmic Search Quadrants). ADR-0010 surfaces the Phase-crossing decision when an Autonomous Agentic Loop Quadrant component is placed in the operation phase of a deployment. Phase (design vs operation) is independent of Quadrant — every Quadrant can appear in either phase. See ../quadrants/ for the navigator. Together, the ten ADRs and the four Business AI Quadrants form the repository's two-axis structure.

Format

Each ADR follows: Status / Date / Context / Decision / Alternatives Considered / Consequences. The intent is that the decision — what should be constrained, and who is responsible — persists across implementation changes.

See ../thesis.md for the underlying thesis (accountability distribution, not capability distribution), ../quadrants/ for the adoption navigator, and ../manifesto.md for the open questions this work does not attempt to answer.