Maintain Context in Long Sessions via Instant Compression
Use instant session compression to maintain context in long coding sessions.
Apply the /compress-fast command to clear old noise while retaining critical context during extended development sessions.
The Scenario
You have been working in the same terminal session for hours and the AI is starting to lose track of early variables or architecture decisions due to context limits.
Before & after
You manually copy-paste relevant snippets into a new chat window once the AI starts halluncinating due to a bloated context window. This manual 'reset' takes 5–10 minutes.
Use /compress-fast or the rewritten compression engine to instantly shrink your long-running session down to its essentials. This takes about 5 seconds and keeps the AI focused.
The Prompt
/compress-fast [CONTEXT_SUMMARY_OBJECTIVE]
The v0.18.0 release introduced /compress-fast, and v0.17.1 included a compression engine rewrite specifically to solve context loss during long tasks.
Source
Qwen Code Blog: AI Coding Updates and Guides | Qwen Code Docs"/compress-fast instant compression... compression engine rewrite solves the critical issue of losing context during long tasks."