ewp

EWP (Epistemic Warrant Protocol) is a deterministic protocol that defines the boundary between what an AI agent's memory contains and what the agent is epistemically justified in accepting. It is described as "an epistemic protocol, not an action-authorization framework" and "a deterministic layer above stores and below decision-making." The protocol computes warrant via a function `warrant_now(evidence_view, policy, evaluated_at) -> WarrantView`, which is deterministic and performs no I/O or LLM inference. It separates evidence storage from warrant evaluation and action gating, with the principle that "Memory is evidence, not truth." The repository provides a reference implementation and conformance suite, including a deterministic warrant kernel, SQLite and JSON adapters, and an MCP façade for serving evidence to agents like Claude. EWP does not persist a single truth badge; instead, it evaluates multiple axes such as acceptance, conflict, verification, currency, and sufficiency. It enforces that verification is evidence with method, scope, source, and time, not a proposition badge, and that endogenous processing cannot manufacture external verification. The protocol is designed to prevent common collapses like treating stored as true or repeated as corroborated, and it maintains that "Warrant is computed, not persisted as truth."