Design doc for collapsing the five parallel agent-dispatch sites
(defaultAgentRunner, runHeadlessPrompt, runSingleAgent, runUnitViaSwarm,
slice-parallel-orchestrator) onto one runtime with three orthogonal
axes — persistence, isolation, routing.
590 lines, ~5200 words. Includes:
- Problem statement with five concrete pain points from this session's
swarm convergence rounds (spawn hangs, inbox cache, checkpoint
synthesis, ledger isolation, etc.)
- Worked-out TypeScript interface
- Mapping of each existing site to runtime options (table)
- 8-step migration plan in blast-radius order (~4-5 days focused work)
- Open questions
No source-code changes. Implementation comes later.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
