CLAUDE_CODE_SKIP_PRECOMPACT_LOAD
Updated by Alex Sorokoletov
CLAUDE_CODE_SKIP_PRECOMPACT_LOAD is a Claude Code environment variable: Optimize large session file loading. Its release history is not tracked here. It is not in the official reference.
| Status | Present in v2.1.294 |
|---|---|
| Category | Context and compaction |
| Official docs | Not listed |
How to set it
For one session, export it in the shell that starts Claude Code:
export CLAUDE_CODE_SKIP_PRECOMPACT_LOAD=<value>
claudeTo apply it to every session, add it to the env object of a settings file:
// ~/.claude/settings.json
{
"env": {
"CLAUDE_CODE_SKIP_PRECOMPACT_LOAD": "<value>"
}
}Release notes that mention it
Related variables
CLAUDE_CODE_DISABLE_PRECOMPACT_SKIP: Disable skipping pre-compaction checks.CLAUDE_AFTER_LAST_COMPACT: Request only conversation logs after last compaction.CLAUDE_AUTOCOMPACT_PCT_OVERRIDE: Set when auto-compaction triggers (percentage threshold).CLAUDE_CODE_AUTO_COMPACT_WINDOW: Controls the token window threshold at which automatic context compaction kicks in.CLAUDE_CODE_AUTO_MODE_PRIOR_ASSISTANT_CONTEXT: Feeds prior assistant turns into the decision, so the classifier can see the reasoning behind an edit.CLAUDE_CODE_AUTO_MODE_SIBLING_CONTEXT: Includes sibling files (or sessions) when classifying.CLAUDE_CODE_DISABLE_1M_CONTEXT: Disable extended 1M token context window.CLAUDE_CODE_SAVE_HOOK_ADDITIONAL_CONTEXT: Extra context passed to save hooks.
Frequently asked questions
What does CLAUDE_CODE_SKIP_PRECOMPACT_LOAD do?
Optimize large session file loading
Which Claude Code version has CLAUDE_CODE_SKIP_PRECOMPACT_LOAD?
Its release history is not tracked here.
How do I set CLAUDE_CODE_SKIP_PRECOMPACT_LOAD?
Export it before starting Claude Code (export CLAUDE_CODE_SKIP_PRECOMPACT_LOAD=value), or add it to the "env" object in ~/.claude/settings.json to apply it to every session.
All variables, searchable: Claude Code environment variables.