goldziher - Elixir 1.14+ OTP 25+, pattern matching extensively,
mix formatnon-negotiable. - Configure
.formatter.exswith:inputsand:import_depsfor consistent formatting across team. - Linting: a linter (e.g., Credo
--strict), type checking: Dialyzer (viadialyxir). - Security:
mix_auditfor dependency CVE scanning, a SAST tool (e.g., Sobelow) for static analysis. Run both in CI. - Testing: ExUnit with
describeblocks,doctestfor examples, a coverage tool (e.g., excoveralls) at 80%+. - Documentation: ExDoc for generation,
@moduledocon all modules,@doc+@specon public functions. {:ok, value}/{:error, reason}tuples — never raise for expected errors.withfor multi-step ops, guard clauses for function overloading.- OTP: GenServer for state, Supervisor for fault tolerance,
|>pipe for transforms. - Dependencies: commit
mix.lock,hexwith~>constraints. - Anti-patterns: mutable state outside processes, long-running NIFs,
String.to_atomwith user input.
Elixir Conventions by goldziher · d6f8526
npx skillmds@latest add goldziher/elixir-conventions File contents
---name: elixir-conventionsdescription: Elixir code conventions covering Elixir 1.14+/OTP 25+, pattern matching, mix format, Credo/Dialyzer, ExUnit, ExDoc, OTP process patterns, and dependency security. Load when writing or reviewing Elixir code.---- Elixir 1.14+ OTP 25+, pattern matching extensively, `mix format` non-negotiable.- Configure `.formatter.exs` with `:inputs` and `:import_deps` for consistent formatting across team.- Linting: a linter (e.g., Credo `--strict`), type checking: Dialyzer (via `dialyxir`).- Security: `mix_audit` for dependency CVE scanning, a SAST tool (e.g., Sobelow) for static analysis. Run both in CI.- Testing: ExUnit with `describe` blocks, `doctest` for examples, a coverage tool (e.g., excoveralls) at 80%+.- Documentation: ExDoc for generation, `@moduledoc` on all modules, `@doc` + `@spec` on public functions.- `{:ok, value}` / `{:error, reason}` tuples — never raise for expected errors.- `with` for multi-step ops, guard clauses for function overloading.- OTP: GenServer for state, Supervisor for fault tolerance, `|>` pipe for transforms.- Dependencies: commit `mix.lock`, `hex` with `~>` constraints.- Anti-patterns: mutable state outside processes, long-running NIFs, `String.to_atom` with user input.
goldziher/ai-rulez/tree/main/internal/builtins/languages/elixir/skills/elixir-conventions commit d6f8526ccd
Frequently asked questions
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Elixir code conventions covering Elixir 1.14+/OTP 25+, pattern matching, mix format, Credo/Dialyzer, ExUnit, ExDoc, OTP process patterns, and dependency security. Load when writing or reviewing Elixir code. It is listed under Security on SkillMD.
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