ns-code-coder
Code Coder
Central execution worker for ad-hoc diffs (and C2 under ns-code-autonomous). Not front door — host picks entry per ../ns-harness/references/code-skill-routing.md.
Workflow mode (mandatory)
Fixed workflow, not loose checklist. Steps in order; handoffs = named skills or harness bridges (coder-agent / reviewer-agent per ../ns-harness/references/subagent-dispatch.md). No platform Task personas or improvised review.
Canonical review gate: ../ns-harness/references/review-gate-workflow.md — steps 7–9 ad-hoc / C2 only. Review only via reviewer-agent then ns-code-reviewer (MUST bridge when available; else skill direct); max 3 rounds; Critical fix requires re-review mandatory; no success without pass or blocked. After Approved: Living specs (8) if match, then Final report (9).
Exception — SDD handoff mode: caller run-implementation / execution-handoff.md (or dispatch says SDD task mode): skip review gate + living specs. Parent owns review at version closure. See When invoked under execution-handoff.