CLAUDE_CODE_BRIDGE_PROMPT_SHA256
Updated by Alex Sorokoletov
CLAUDE_CODE_BRIDGE_PROMPT_SHA256 is a Claude Code environment variable. Added between v2.1.238 and v2.1.241 and still present in v2.1.295. It is not in the official reference.
| Status | Present in v2.1.295 |
|---|---|
| Added | Added between v2.1.238 and v2.1.241 |
| Category | Sessions |
| Official docs | Not listed |
How to set it
For one session, export it in the shell that starts Claude Code:
export CLAUDE_CODE_BRIDGE_PROMPT_SHA256=<value>
claudeTo apply it to every session, add it to the env object of a settings file:
// ~/.claude/settings.json
{
"env": {
"CLAUDE_CODE_BRIDGE_PROMPT_SHA256": "<value>"
}
}Related variables
CLAUDE_BRIDGE_REATTACH_SEQ: Sequence number for the bridge reconnection protocol.CLAUDE_BRIDGE_REATTACH_SESSION: Session identity used during bridge reconnection.CLAUDE_BRIDGE_USE_CCR_V2: Toggle for CCR v2 bridge protocol — companion to the existing CLAUDE_CODE_USE_CCR_V2 introduced in v2.1.69.CLAUDE_CODE_BRIDGE_SESSION_IDCLAUDE_CODE_RESUME_PROMPT: Set the prompt injected when resuming a session.CLAUDE_BG_CARRIED_PROMPTS_SHA256CLAUDE_BRIDGE_REATTACH_GROUPINGCLAUDE_BRIDGE_REATTACH_NO_BACKFILL
Frequently asked questions
Which Claude Code version has CLAUDE_CODE_BRIDGE_PROMPT_SHA256?
Added between v2.1.238 and v2.1.241 and still present in v2.1.295.
How do I set CLAUDE_CODE_BRIDGE_PROMPT_SHA256?
Export it before starting Claude Code (export CLAUDE_CODE_BRIDGE_PROMPT_SHA256=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.