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Context window management. Auto-triggered when context is filling up. Triggers smart compaction and preserves critical information across compaction boundaries. Called by L1 orchestrators at context thresholds.
Context window management for long sessions. Detects when context is approaching limits, triggers smart compaction preserving critical decisions and progress, and coordinates with session-bridge to save state before compaction. Prevents the common failure mode of losing important context mid-workflow.
Context-engine also manages behavioral mode injection via contexts/ directory. Three modes are available:
| Mode | File | When to Use |
|---|---|---|
dev | contexts/dev.md | Active coding — bias toward action, code-first |
research | contexts/research.md | Investigation — read widely, evidence-based |
review | contexts/review.md | Code review — systematic, severity-labeled |
Mode activation: Orchestrators (cook, team, rescue) can set the active mode by writing to .rune/active-context.md. The session-start hook injects the active context file into the session. Mode switches mid-session are supported — the orchestrator updates the file and references the new behavioral rules.
npx skills add Rune-kit/rune --skill context-engineHow clear and easy to understand the SKILL.md instructions are, rated from 1 to 5.
Clear and well structured, with only minor parts that might need a second read.
How directly an agent can act on the SKILL.md instructions, rated from 1 to 5.
Mostly actionable with clear steps; only a few small gaps remain.