97

Use when designing or reviewing a public API, exported function signature, module boundary, exported type/interface, or any contract other code depends on

Use when considering, evaluating, or performing a refactor, restructure, cross-file rename, or cleanup

Use when writing, reviewing, or changing build scripts, CI workflows, deploy pipelines, repo setup, or evaluating a new tool/dependency

Use when writing or reviewing functions, classes, naming, or non-trivial logic (≥3 lines)

Use when writing or reviewing error handling, floating-point math, concurrent code, remote calls, singletons/globals, hot-path data structures, or high-volume log statements

Use when introducing, reviewing, or renaming a top-level type, table, or domain concept; or choosing where state lives (in-memory vs persistent)

Use when writing or reviewing request handlers, RPCs, or background jobs for production; adding tracing, metrics, or structured-log calls; or making diagnosability decisions

Use when writing or reviewing code that parses user input, builds SQL/shell commands, handles secrets/credentials, hashes passwords, changes auth checks, deserializes untrusted data, or constructs paths/URLs from input

Use when about to commit, finish a task, open a PR, summarize work for the user, or when the user asks for a review or summary — NOT just on autonomous commits, which are rare in OpenCode usage

Use when writing or reviewing tests, designing test data, naming a test, choosing what to assert, or writing test helpers/mocks/fixtures

Use when starting any coding task — establishes the 97 trigger map so principles fire when relevant

Use when gathering or interpreting requirements, estimating effort, or communicating with stakeholders/customers about what to build