Claude Code Outage Recovery

3 hooks that saved my work during the April 6-8 incidents

Hook 1: Pre-compact checkpoint

Auto-saves all uncommitted changes before /compact runs. During the April 7 outage, this hook had saved 3 checkpoints before the session died.

#!/bin/bash
# PreCompact hook — auto-commit before context compression
cd "$(git rev-parse --show-toplevel 2>/dev/null)" || exit 0
if [ -n "$(git status --porcelain)" ]; then
  git add -A
  git commit -m "checkpoint: pre-compact $(date +%Y%m%d-%H%M%S)" --no-verify 2>/dev/null
  echo "Checkpoint saved."
fi
echo "Context compressed. Wait for instructions before resuming."

Hook 2: Session state backup

Logs the HEAD commit at session start. When a session dies, you know exactly where to resume.

#!/bin/bash
# SessionStart hook — log recovery point
echo "$(date +%Y-%m-%dT%H:%M:%S) $(git rev-parse HEAD 2>/dev/null)" \
  >> /tmp/cc-sessions.log
echo "Recovery point: $(git rev-parse --short HEAD 2>/dev/null)"

Hook 3: Periodic auto-commit

Creates a checkpoint every 50 tool calls. Insurance against unexpected disconnections during long autonomous sessions.

#!/bin/bash
# PostToolUse hook — auto-commit every 50 operations
counter="/tmp/cc-autocommit-$$"
count=0
[ -f "$counter" ] && count=$(cat "$counter")
count=$((count + 1))
echo "$count" > "$counter"

if [ $((count % 50)) -eq 0 ]; then
  cd "$(git rev-parse --show-toplevel 2>/dev/null)" || exit 0
  if [ -n "$(git status --porcelain)" ]; then
    git add -A
    git commit -m "auto: checkpoint at $count tool calls" --no-verify 2>/dev/null
  fi
fi

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