Context Partitioning — Manifest-First Dispatch

The Problem

Without explicit context isolation, the main orchestrator context window accumulates:

• Full file reads that were only needed once
• Subagent outputs that are already committed to disk
• Skill files that don't apply to the current task
• Historical reasoning that compaction will destroy anyway

Result: context bloat → compaction → rule violations → wrong output.

The Solution: Manifest-First

Rule: Before dispatching ANY subagent, the orchestrator MUST produce a typed manifest. The manifest is the subagent's entire world — it reads NOTHING outside its manifest.