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name: principle-guard-the-context-window description: "Apply when context is filling up: large outputs, long files, repeated reads, fan-out planning. Route bulk to subagents; keep summaries in the main thread, not raw payloads." disable-model-invocation: true

Guard the Context Window

Why: Context overflow degrades reasoning quality, creates compression artifacts, and halts progress.

Pattern:

• Size phases and cap scope. Limit files per phase, set turn budgets, account for mechanism costs.