speclang

Use when the user describes a feature, requirement, or behavior in natural language that should be formalized into a speclang .spec file. Also use when creating new features, adding functionality, or modifying behavior in a project that has speclang specs (.spec files). Triggers: user says 'write a spec for', 'add a feature', 'build X', or when the project contains .spec files and new functionality is being planned.

Use after implementation is complete and before merging, committing final work, or creating PRs in a project that has speclang specs (.spec files) — run specrun verify against the project's spec files to confirm the implementation satisfies its specification.