bot-agents/.agents/memory/naming-id-match.md

description

description
Deno's camelcase is Oxlint id-match ^_*[^_]*_*$|^[^a-z]*$; leading _ for unused vars; rename snake_case imports; PascalCase types; single-letter type params

Oxlint has no camelcase. Its built-in id-match replaces it, set in configs.project (user decision 2026-10-16, replacing a ~400-line port):

"id-match": ["error", "^_*[^_]*_*$|^[^a-z]*$", {
  properties: false, classFields: false, onlyDeclarations: false,
  ignoreDestructuring: true,
}],

Meaning (Deno's is_underscored): after trimming leading and trailing underscores, the name has no _, or the name has no lowercase ASCII letter. id-match can't tell what kind of name it sees, so one regex accepts every valid style; other rules decide which style goes where.

const userName = 1; // ok
class UserStore {} // ok here; pascal-case-types enforces PascalCase
const MAX_SIZE = 10; // ok: no lowercase, so UPPER_SNAKE passes
const _unused = 1; // ok: leading _ marks an unused binding
const user_name = 1; // error

• Leading underscores stay allowed for unused parameters and variables (items.map((_item, index) => index)). The user considered banning them and kept them for exactly this.
• Rename snake_case imports at the import (user wants this flagged): import { parse_args as parseArgs } from "some-lib";
• declare lines and snake_case globals are rare and accepted as they are.
• Types: classes, interfaces, type aliases, enums are PascalCase (pascal-case-types from explicit-types' naming config); string-union members are UPPER_SNAKE_CASE; no enum.
• Type parameters: the user wants single capital letters (T, K), not Item; explicit-types PR 2 adds single-capital-type-params to naming. Write new code that way already.
• No autofix exists for id-match; rename by hand.

Known differences from Deno's camelcase (against its 130 test cases): it misses 9 (unquoted object keys like { bar_baz: 1 } and { bar_baz }, shorthand destructuring in parameters, { a_b: a_b }, { foo: bar_baz = 1 }) and over-reports 17 (non-renamed imports, assignments to unresolved globals, 11 ambient declare cases). Beyond Deno it also checks type parameters, interface and type-literal members, class methods, and labels. The user accepted these differences.