What problem does it solve? Engineers repeatedly re-attempt fixes that were already tried, merged, and reverted in the Zeus Lightning wallet repository, wasting effort and risking regressions. This Skill provides a verified chronicle of every major investigation — symptom, root cause, evidence (commit hashes and PRs), and status — so no one re-fights a settled battle. ## Core Features & Use Cases - Incident Chronicle: Twelve documented failure entries (FA-1 through FA-12) covering iCloud keychain migrations, React Native/Fabric upgrades, settings corruption, Tor TLS, navigation regressions, LDK Node crashes, embedded LND database flips, and more, each with verified commit hashes and lessons. - Meta-Pattern Detection: Documents the rapid-revert policy (MP-1) and the stalled-branch graveyard (MP-2), teaching you to check for revert-<PR#> branches before trusting any merged fix. - Verification Commands: Provides copy-paste git and grep one-liners to confirm any cited hash, version pin, or migration flag against the current master snapshot. - Use Case: Before proposing a keychain cleanup migration, consult FA-1 to learn that three prior attempts failed, deletion is deliberately disabled, and the standing rule is namespace-and-retain. ## Quick Start Ask the assistant to check the Zeus failure chronicle before attempting a fix for stale wallet data appearing on a new iOS device.