Trajectory formats

Format	Role	Specification
Events	Canonical HTTP-first event record	RFC-0002
Storyline	Normalized session and tool-call projection	RFC-0001
ACTF	JSON trajectory interchange	RFC-0004
ATIF	External interchange supported by pChronicle	Storyline mapping
AgenticMD	Human-readable live and materialized view	AgenticMD reference

Canonical events and derived projections have different fidelity and ownership. See Trajectory storage before choosing a format as a persistence boundary.