| name | naming-conventions |
| description | Naming-convention lens consulted BEFORE writing code — camelCase in code, snake_case at the DB boundary, and one consistent name per concept across layers. Appended to impl-conventions.txt by the stack-conventions pack. Also usable standalone. |
naming-conventions
When: consulted by plan-writer (to record naming decisions in Decisões Técnicas) and by implement-feature (to apply them while coding), in projects where the stack-conventions pack is installed. Not a review lens — this shapes code as it is written, not after.
Scope: names the code introduces — identifiers, DB columns/tables, API fields, files. Advisory knowledge, makes no edits.
Conventions
- Code identifiers:
camelCase for variables/functions/properties, PascalCase for types/classes/components, SCREAMING_SNAKE for module-level constants. One name per concept — do not rename a thing as it crosses functions (userId stays userId, not uid then user_id then id).
- Database boundary:
snake_case for tables and columns (created_at, user_id). Tables plural (users), columns singular. The mapping camelCase (code) ↔ snake_case (DB) is EXPLICIT — declared once in the ORM/mapper (Prisma @map/@@map, or the query layer), never scattered per-query. A plan that adds a table must state this mapping.
- API fields: pick one wire casing per API and hold it —
camelCase JSON is the common default for TS stacks; do not mix camelCase and snake_case in the same payload. The wire shape is a contract, independent of the DB casing.
- Booleans: prefix with
is/has/can (isActive, hasAccess). Avoid negated names (isNotDisabled).
- Files: match the surrounding tree's existing convention (
kebab-case.ts vs PascalCase.tsx) — consistency with siblings beats any absolute rule.
Applying
- In
plan-writer: when the plan adds a table, column, or API field, record the code↔DB↔wire names and the mapping site in Decisões Técnicas. Ambiguity here becomes a clarify question, not a coin-flip at implement time.
- In
implement-feature: before naming a new identifier, match how the surrounding code already names the same concept. New name only when no sibling exists.
Whitelist over blacklist for any allowed-value naming (source/role/type checks): name the allowed set, not the banned one — see the constitution's authorization rule.
