Replace general-purpose workaround pattern with named subagent types:
- plan-phase: researcher and planner now spawn as gsd-phase-researcher/gsd-planner
- new-project: 4 researcher spawns now use gsd-project-researcher
- research-phase: researcher spawns now use gsd-phase-researcher
- quick: planner revision now uses gsd-planner
- diagnose-issues: debug agents now use gsd-debugger (matches template spec)
Removes 'First, read agent .md file' prompt prefix — named agent types
auto-load their .md file as system prompt, making the workaround redundant.
Preserves intentional general-purpose orchestrator spawns in discuss-phase
and plan-phase (auto-advance) where the agent runs an entire workflow.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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