Smart contracts are unforgiving. Once deployed, bugs cost real money, real reputation and — worst of all — real user trust. At BreakNRoot, we treat every mainnet deployment as a one-way door and engineer accordingly. Here is the checklist we run on every production contract.
Threat Model Before You Write A Line Of Solidity
Before any code is written, we map the full threat surface: reentrancy, oracle manipulation, flashloan attacks, front-running, privileged role abuse and upgrade paths. Every assumption is written down and challenged.
We identify the economic invariants that must always hold, and we turn them into property tests that run on every commit.
Defensive Engineering Patterns
We default to the safest primitives: checks-effects-interactions, pull-over-push payments, reentrancy guards, pausable circuits, and strict role-based access with timelocks on every privileged action.
- Checks-effects-interactions on every state mutation
- ReentrancyGuard on all external entry points
- Timelocked multisig for every privileged action
- Upgrade proxies only when upgradeability is explicitly required
- Invariant tests as first-class citizens
Fuzzing, Invariants And Formal Methods
Unit tests are the floor, not the ceiling. Every contract we ship is fuzzed with Foundry invariant tests, static-analyzed with Slither, and — for high-value contracts — symbolically executed.
We run property tests against 10,000+ randomized scenarios per commit, and we fail the build the moment an invariant is broken.
Deploy Like Your Reputation Depends On It — Because It Does
Every mainnet deploy is preceded by a full testnet rehearsal on a forked environment, an external audit, a bug bounty, and a staged rollout with on-chain monitoring. We never deploy on a Friday.
We monitor every contract 24/7 with alerts on unusual flows, privileged calls and balance drifts. The moment something looks off, a human is paged.
Security is not a final step before mainnet — it is the operating system of every Web3 project we touch. The contracts we ship are boring on purpose, and that is exactly why they stay safe.
