New Tool Injects Instructions into Claude Code Based on Context Usage
A developer frustrated with Claude Code hitting context limits mid-task has created a tool that monitors context usage and injects custom instructions when thresholds are crossed — allowing Claude to act on warnings before it is too late.
The Problem
Claude Code auto-compaction often happens at the worst times. The standard 20% warning usually comes too late to do anything useful, resulting in lost context and interrupted workflows.
The Solution
The cc-context-awareness tool uses the status line and hooks to set custom warning thresholds. The key innovation: messages get injected mid-task (inside the agentic loop), so Claude can actually act on them.
Use Cases
- Deterministic handoffs — At 75% context, Claude writes a session summary to a memory file, then suggests /compact. After compaction, it reads the file and continues.
- Graduated warnings — Gentle nudge at 60%, serious warning at 80%, full stop at 95%. Good for long sessions with progressive nudges.
- Autonomous agent loops — Write state and close out at 50-60% usage, staying well below the "dumb zone" where quality degrades.
- Long-horizon tasks — Multi-file refactors, extended debugging. Checkpoint and wrap up before quality drops.
Installation
One-liner install:
curl -fsSL https://raw.githubusercontent.com/sdi2200262/cc-context-awareness/main/install.sh | bashThe tool installs as a skill, so you can ask Claude to help configure thresholds, change bar styles, and customize behavior.
📖 Read the full source: r/ClaudeAI
👀 See Also
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