gitnexus-plan — implementation-ready engineering plans

Produce an implementation-ready plan for an engineering task. GitNexus is the navigation layer (where to look), statement-level PDG is the constraint layer (what gates and feeds the behavior), and your native targeted source reads are the verification layer (what is actually true right now). The output is a plan document plus a compact, machine-readable implementation context pack that a follow-up implementation agent (gitnexus-work, or any executor) can consume without repeating the investigation.

/gitnexus-plan <task description>
/gitnexus-plan impact_depth:3 depth:deep <task description>   # knob overrides, see Configuration