Phase 0 of the Dynamic Context Management epic (#1671): the ADR (documentation) plus a non-shipping reference example under examples/dynamic-context-management/ — the Option-E predicate fact-store parser/selector, a self-contained --check/--write/--select index generator, a sample index, and a runnable demo.
The example is intentionally excluded from the build (src/->bin/lib/), the npm package files[], the installer, and the CI test suite (tests/) — nothing here is compiled into or installed with GSD. Production implementation lands in a later phase.
Resolves#1672
Refs #1671
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
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