| A public API, interface, or widely-used contract; backward compatibility; deprecation; "is this breaking?" | hyrums-law |
| Input validation, parsing, protocol/format handling, strict-vs-lenient acceptance | postels-law |
| Security, auth, encryption, or relying on a hidden algorithm/design for safety | kerckhoffs-principle |
| Performance work, optimization, "make it faster", complex structures for speed | knuths-optimization-principle, wirths-law |
| Compute/hardware-trend assumptions ("hardware will catch up") | moores-law |
| Clever/terse code, one-liners, hard-to-debug logic, readability tradeoffs | kernighans-law |
| A homegrown config language, rules engine, DSL, or templating/scripting layer | greenspuns-tenth-rule |
| An ORM/framework/library leaking its internals; an abstraction breaking down | leaky-abstractions |
| Adding a new framework/library/datastore, or proposing a rewrite | choose-boring-technology |
| Building a big new system from scratch / a big-bang rewrite | galls-law |
| Module boundaries, service splits, ownership, org-shaped architecture | conways-law |
| Code review process, how many reviewers, bug-finding via more eyes | linuss-law |
| Metrics, OKRs, KPIs, velocity, anything people are scored on | goodharts-law |
| Time estimates, schedules, "how long will this take", missed deadlines | hofstadters-law, parkinsons-law |
| Scope/feature creep, "let's also add…", a product expanding past its purpose | zawinskis-law |
| Promotions, career ladders, IC→manager moves, team competence/fit | peter-principle |
| Product-team culture, motivation, engagement, outsourcing decisions | doerrs-law |
| A legacy system that won't die / a tool prolonging the problem it solves | shirky-principle |
| Eliciting feedback, getting answers, drafting a question or PR description | cunninghams-law |
| UI layout, click/touch targets, button placement, menus | fitts-law |
| Claims about AI creativity / machines "originating" ideas | lady-lovelaces-objection |
| Growth/adoption claims, "exponential", "will double", market-size math | norvigs-law |