flock

When writing code against an external library, framework, SDK, or API, look up its CURRENT documentation with the context7 MCP tools instead of relying on memory. Use whenever you import/call a third-party package or hit an unfamiliar or fast-moving API.

Before telling the user a coding task is done, actually verify it — build, run the relevant tests/linter, and confirm the change does what was asked with no regressions. Use whenever you are about to claim a change is finished, fixed, or working.