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feat: emergency circuit breaker, contributor wiki, key management & formal verification - #478

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ExcelDsigN-tech:mainfrom
Junman140:feat/circuit-breaker-wiki-keys-verification
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feat: emergency circuit breaker, contributor wiki, key management & formal verification#478
Junman140 wants to merge 1 commit into
ExcelDsigN-tech:mainfrom
Junman140:feat/circuit-breaker-wiki-keys-verification

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Summary

Implements the protocol's security & operability hardening across four issues:

Verification

  • cargo fmt --all --check, cargo clippy -p circuit_breaker -p lending_pool -p agent_vault -p loan_manager --lib, and cargo test all pass.
  • scripts/key-management/scan-secrets.sh passes (no hardcoded secrets).

Closes #458
Closes #438
Closes #463
Closes #464

…ormal verification

- Add CircuitBreaker Soroban contract (global/contract/function pause,
  3-of-5 governance override with timelock, 72h auto-expiry) (closes ExcelDsigN-tech#458)
- Integrate breaker into lending_pool, agent_vault, loan_manager
- Add contributor wiki (architecture, deployment, troubleshooting,
  onboarding) (closes ExcelDsigN-tech#438)
- Add secure key-management docs + HSM/MPC provider scaffold, rotation &
  emergency-revocation scripts, and a no-hardcoded-secrets scan (closes ExcelDsigN-tech#463)
- Document formal verification strategy + invariants (CVL-style) and add an
  invariants fuzz target (closes ExcelDsigN-tech#464)
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drips-wave Bot commented Aug 25, 2026

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@Junman140 Great news! 🎉 Based on an automated assessment of this PR, the linked Wave issue(s) no longer count against your application limits.

You can now already apply to more issues while waiting for a review of this PR. Keep up the great work! 🚀

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📥 Commits

Reviewing files that changed from the base of the PR and between 0599a27 and b623942.

⛔ Files ignored due to path filters (1)
  • contracts/Cargo.lock is excluded by !**/*.lock
📒 Files selected for processing (106)
  • contracts/Cargo.toml
  • contracts/FORMAL_VERIFICATION.md
  • contracts/agent_vault/src/events.rs
  • contracts/agent_vault/src/lib.rs
  • contracts/circuit_breaker/Cargo.toml
  • contracts/circuit_breaker/src/lib.rs
  • contracts/circuit_breaker/src/test.rs
  • contracts/fuzz/Cargo.toml
  • contracts/fuzz/fuzz_targets/invariants_fuzz.rs
  • contracts/fuzz_campaign.sh
  • contracts/lending_pool/src/events.rs
  • contracts/lending_pool/src/lib.rs
  • contracts/lending_pool/src/test.rs
  • contracts/lending_pool/test_snapshots/test/test_accept_admin_with_no_proposed_returns_error.1.json
  • contracts/lending_pool/test_snapshots/test/test_admin_transfer_flow.1.json
  • contracts/lending_pool/test_snapshots/test/test_deposit_after_withdraw_frees_cap_space.1.json
  • contracts/lending_pool/test_snapshots/test/test_deposit_blocked_when_paused.1.json
  • contracts/lending_pool/test_snapshots/test/test_deposit_exceeds_cap_panics.1.json
  • contracts/lending_pool/test_snapshots/test/test_deposit_flow.1.json
  • contracts/lending_pool/test_snapshots/test/test_deposit_unauthorized.1.json
  • contracts/lending_pool/test_snapshots/test/test_deposit_withdraw_invariants.1.json
  • contracts/lending_pool/test_snapshots/test/test_deposit_withdraw_invariants.2.json
  • contracts/lending_pool/test_snapshots/test/test_deposit_withdraw_invariants.3.json
  • contracts/lending_pool/test_snapshots/test/test_deposit_withdraw_invariants.4.json
  • contracts/lending_pool/test_snapshots/test/test_deposit_withdraw_invariants.5.json
  • contracts/lending_pool/test_snapshots/test/test_deposit_withdraw_invariants.6.json
  • contracts/lending_pool/test_snapshots/test/test_deposit_within_cap_succeeds.1.json
  • contracts/lending_pool/test_snapshots/test/test_double_initialize_returns_error.1.json
  • contracts/lending_pool/test_snapshots/test/test_emergency_withdraw_bypasses_pause_and_cooldown.1.json
  • contracts/lending_pool/test_snapshots/test/test_full_loan_cycle_with_interest.1.json
  • contracts/lending_pool/test_snapshots/test/test_get_admin_returns_initialized_admin.1.json
  • contracts/lending_pool/test_snapshots/test/test_immediate_withdraw_panics_when_cooldown_active.1.json
  • contracts/lending_pool/test_snapshots/test/test_insufficient_balance_withdraw_panic.1.json
  • contracts/lending_pool/test_snapshots/test/test_negative_deposit_panic.1.json
  • contracts/lending_pool/test_snapshots/test/test_negative_withdraw_panic.1.json
  • contracts/lending_pool/test_snapshots/test/test_no_cap_allows_unlimited_deposits.1.json
  • contracts/lending_pool/test_snapshots/test/test_pool_stats.1.json
  • contracts/lending_pool/test_snapshots/test/test_pro_rata_yield_distribution_on_withdrawal.1.json
  • contracts/lending_pool/test_snapshots/test/test_set_and_get_max_pool_size.1.json
  • contracts/lending_pool/test_snapshots/test/test_set_negative_max_pool_size_panics.1.json
  • contracts/lending_pool/test_snapshots/test/test_share_price_increases_when_interest_arrives.1.json
  • contracts/lending_pool/test_snapshots/test/test_subsequent_depositor_does_not_dilute_existing_holders.1.json
  • contracts/lending_pool/test_snapshots/test/test_upgrade_requires_admin_auth.1.json
  • contracts/lending_pool/test_snapshots/test/test_version_is_initialized.1.json
  • contracts/lending_pool/test_snapshots/test/test_withdraw_blocked_when_paused.1.json
  • contracts/lending_pool/test_snapshots/test/test_withdraw_flow.1.json
  • contracts/lending_pool/test_snapshots/test/test_withdraw_reduces_total_deposits.1.json
  • contracts/lending_pool/test_snapshots/test/test_withdraw_returns_principal_plus_interest.1.json
  • contracts/lending_pool/test_snapshots/test/test_withdraw_succeeds_after_cooldown.1.json
  • contracts/loan_manager/src/events.rs
  • contracts/loan_manager/src/lib.rs
  • contracts/loan_manager/test_snapshots/test/test_access_controls_unauthorized_repay.1.json
  • contracts/loan_manager/test_snapshots/test/test_admin_transfer_via_propose_accept.1.json
  • contracts/loan_manager/test_snapshots/test/test_approve_already_approved_loan.1.json
  • contracts/loan_manager/test_snapshots/test/test_approve_loan_fails_when_pool_has_insufficient_liquidity.1.json
  • contracts/loan_manager/test_snapshots/test/test_approve_loan_flow.1.json
  • contracts/loan_manager/test_snapshots/test/test_approve_loan_insufficient_pool_liquidity.1.json
  • contracts/loan_manager/test_snapshots/test/test_approve_nonexistent_loan.1.json
  • contracts/loan_manager/test_snapshots/test/test_borrower_max_active_loans_blocks_new_requests.1.json
  • contracts/loan_manager/test_snapshots/test/test_borrower_max_active_loans_enforced_and_released_on_repay.1.json
  • contracts/loan_manager/test_snapshots/test/test_cancel_pending_loan.1.json
  • contracts/loan_manager/test_snapshots/test/test_cancel_pending_loan_returns_collateral.1.json
  • contracts/loan_manager/test_snapshots/test/test_check_default_already_repaid.1.json
  • contracts/loan_manager/test_snapshots/test/test_check_default_not_past_due.1.json
  • contracts/loan_manager/test_snapshots/test/test_check_default_respects_default_window.1.json
  • contracts/loan_manager/test_snapshots/test/test_check_default_success.1.json
  • contracts/loan_manager/test_snapshots/test/test_check_defaults_batch.1.json
  • contracts/loan_manager/test_snapshots/test/test_collateral_is_seized_on_batch_default.1.json
  • contracts/loan_manager/test_snapshots/test/test_collateral_is_seized_on_default.1.json
  • contracts/loan_manager/test_snapshots/test/test_configurable_interest_rate_and_default_term.1.json
  • contracts/loan_manager/test_snapshots/test/test_deposit_collateral_and_auto_release_on_full_repayment.1.json
  • contracts/loan_manager/test_snapshots/test/test_deposit_collateral_rejects_non_active_loan.1.json
  • contracts/loan_manager/test_snapshots/test/test_full_repayment_ignores_minimum_amount.1.json
  • contracts/loan_manager/test_snapshots/test/test_get_borrower_loans.1.json
  • contracts/loan_manager/test_snapshots/test/test_late_full_repayment_applies_score_penalty.1.json
  • contracts/loan_manager/test_snapshots/test/test_legacy_zero_interest_config_falls_back_to_default.1.json
  • contracts/loan_manager/test_snapshots/test/test_loan_request_failure_low_score.1.json
  • contracts/loan_manager/test_snapshots/test/test_loan_request_success.1.json
  • contracts/loan_manager/test_snapshots/test/test_minimum_repayment_amount_enforced.1.json
  • contracts/loan_manager/test_snapshots/test/test_overdue_partial_repayment_still_reduces_principal.1.json
  • contracts/loan_manager/test_snapshots/test/test_overdue_repayment_charges_late_fee.1.json
  • contracts/loan_manager/test_snapshots/test/test_partial_repayment_tracks_split_balances.1.json
  • contracts/loan_manager/test_snapshots/test/test_query_functions.1.json
  • contracts/loan_manager/test_snapshots/test/test_reject_pending_loan.1.json
  • contracts/loan_manager/test_snapshots/test/test_reject_pending_loan_returns_collateral.1.json
  • contracts/loan_manager/test_snapshots/test/test_repayment_flow.1.json
  • contracts/loan_manager/test_snapshots/test/test_request_loan_above_max_amount_fails.1.json
  • contracts/loan_manager/test_snapshots/test/test_request_loan_negative_amount.1.json
  • contracts/loan_manager/test_snapshots/test/test_set_admin_updates_admin_immediately.1.json
  • contracts/loan_manager/test_snapshots/test/test_set_interest_rate_zero_rejected.1.json
  • contracts/loan_manager/test_snapshots/test/test_small_loan_interest_accrual_precision.1.json
  • contracts/loan_manager/test_snapshots/test/test_small_repayment_does_not_change_score.1.json
  • contracts/loan_manager/test_snapshots/test/test_upgrade_requires_admin_auth.1.json
  • docs/security/key-management.md
  • docs/wiki/README.md
  • docs/wiki/architecture.md
  • docs/wiki/deployment.md
  • docs/wiki/onboarding.md
  • docs/wiki/troubleshooting.md
  • scripts/key-management/.secrets.allow
  • scripts/key-management/emergency-revoke.sh
  • scripts/key-management/key-ceremony.md
  • scripts/key-management/provider.sh
  • scripts/key-management/provider.ts
  • scripts/key-management/rotate-key.sh
  • scripts/key-management/scan-secrets.sh

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// --- CLI entrypoint used by provider.sh -------------------------------

async function main() {
const [action, type, ref] = process.argv.slice(2);
Comment thread contracts/fuzz/fuzz_targets/invariants_fuzz.rs
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