DecisionGraph Core

Based on the Causal Reachability Model

DecisionGraph Corev0.4.8

Deterministic Decision Kernel for Replayable Human Judgment

Infrastructure for replayable, immutable, auditable decision graphs — defining what is reachable, not just what is allowed.

Core Concepts

Foundational ideas and operational structures for AI-native systems.

From defining what is possible → to controlling it → to redesigning the web.

Causal Reachability Model (CRM)

Theory

Define what is reachable. Security emerges from structure, not rules.

Explore the model

→ Algorithm Spec

GTCA v0.2
AI-Native Control Plane

Operations

Operationalize reachability. Control what AI can see and do in real time.

Agentic Semantic Web

Vision

Extend reachability to the internet. From URLs to meaning-based routing.

Determinism

Same input → same output. Stable ordering and replay across time.

Immutability

After commit, the graph is append-only. Changes are expressed via supersession.

Replay

Reconstruct graph state as-of a boundary (commitId / timestamp) deterministically.

Deterministic validation in CI

DecisionGraph Core validates the structure of decisions — not just code. If a decision depends on a superseded assumption, CI fails deterministically. The code didn't change. The assumption did.

izzy@macbook — decisiongraph lint ./decisions
% decisiongraph lint ./decisions --strict
Resolving GraphStore from ./decisions …
✔ [01-security-policy.decisionlog.json] 2 ops applied
✔ [02-adr-auth-strategy.decisionlog.json] 3 ops applied
✖ [03-adr-passwordless.decisionlog.json] op rejected: add_edge
DEPENDENCY_ON_SUPERSEDED
path : graphs.G:adr-auth.edges.E:adr-042-depends-sec
target: N:sec-017 (status: Superseded)
N:adr-042 Use passwordless auth [dev-team-alpha]
└─ depends_on ──▶ N:sec-017 Passkey policy [SUPERSEDED]
──────────────────────────────────────────
✖ Validation failed 1 error · 0 warnings
exit code 1

The code did not change. The assumption did.

Ecosystem

Companion projects built on top of DecisionGraph Core.

TraceOS

Built on DecisionGraph Core — an append-only WHY engine for causal evidence, replay, and audit trails.

Latest release

v0.4.8 Upgraded `actions/checkout` and `actions/setup-node` to v5 across all workflows