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feat(circuit-breaker): allow configuring thresholds via environment variables

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Makes circuit breaker thresholds configurable via environment variables
while maintaining backward compatibility with default values.

Usage:
  CB_NO_PROGRESS_THRESHOLD=10 ralph --monitor
  CB_SAME_ERROR_THRESHOLD=8 CB_OUTPUT_DECLINE_THRESHOLD=80 ralph

Configurable thresholds:
- CB_NO_PROGRESS_THRESHOLD (default: 3)
- CB_SAME_ERROR_THRESHOLD (default: 5)
- CB_OUTPUT_DECLINE_THRESHOLD (default: 70)
- CB_PERMISSION_DENIAL_THRESHOLD (default: 2)

Fixes #99
Credit: @zerone0x (PR #111)
This commit is contained in:
Test User 2026-02-02 09:36:48 -07:00
parent fe94cbd02b
commit c05499c176
1 changed files with 6 additions and 4 deletions
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10
lib/circuit_breaker.sh
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@ -16,10 +16,12 @@ CB_STATE_OPEN="OPEN" # Failure detected, execution halted
RALPH_DIR="${RALPH_DIR:-.ralph}"
CB_STATE_FILE="$RALPH_DIR/.circuit_breaker_state"
CB_HISTORY_FILE="$RALPH_DIR/.circuit_breaker_history"
CB_NO_PROGRESS_THRESHOLD=3 # Open circuit after N loops with no progress
CB_SAME_ERROR_THRESHOLD=5 # Open circuit after N loops with same error
CB_OUTPUT_DECLINE_THRESHOLD=70 # Open circuit if output declines by >70%
CB_PERMISSION_DENIAL_THRESHOLD=2 # Open circuit after N loops with permission denials (Issue #101)
# Configurable thresholds - override via environment variables:
# Example: CB_NO_PROGRESS_THRESHOLD=10 ralph --monitor
CB_NO_PROGRESS_THRESHOLD=${CB_NO_PROGRESS_THRESHOLD:-3} # Open circuit after N loops with no progress
CB_SAME_ERROR_THRESHOLD=${CB_SAME_ERROR_THRESHOLD:-5} # Open circuit after N loops with same error
CB_OUTPUT_DECLINE_THRESHOLD=${CB_OUTPUT_DECLINE_THRESHOLD:-70} # Open circuit if output declines by >70%
CB_PERMISSION_DENIAL_THRESHOLD=${CB_PERMISSION_DENIAL_THRESHOLD:-2} # Open circuit after N loops with permission denials (Issue #101)
# Colors
RED='\033[0;31m'