/vt-d-2-plan

Phase 2 - Design and architecture planning. Runs one planning pipeline for the active spec — research, technical plan, plan-checker validation loop, and task breakdown — using the conceptual-orchestrator for research and architecture decisions.

Appears in: knowledge-work / Phases, unified-product-development / Implementation phases
Implemented by: plugins/vt-product-dev/skills/workflow-2-plan/SKILL.md
Output contract: multi-step

Agents

Orchestrator: not declared. This phase's SKILL.md carries no agent: field, so which orchestrator it routes to is not machine-readable. Prose mentions are deliberately not used here: /vt-d-0-start name-drops three orchestrators and dispatches none of them.

Declared agent requirements (SPEC-189):

Agent	Role
plan-checker	gate-critical
strategic-mentor	advisory

Hooks

Hooks are triggered by tools, not by phases — there is no phase binding to read. See the hooks reference for which hook intercepts which tool; any step that writes a file passes the Write/Edit hooks, and any step that runs a command passes the Bash hooks.