elixir-idioms SKILL.md skillA
elixir-idioms from oliver-kriska/claude-elixir-phoenix is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add oliver-kriska/claude-elixir-phoenix/elixir-idioms@git:20260611.6d29364Pins git:20260611.6d29364 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- oliver-kriska/claude-elixir-phoenix
- Path
plugins/elixir-phoenix/skills/elixir-idioms/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260611.6d29364, committed Jun 11, 2026
- First version recorded
- Mar 21, 2026
- Size
- 4,890 bytes
- Repository stars
- 573
- License
- MIT
OTP/BEAM patterns and Elixir idioms — GenServer, Supervisor, Task, Registry, pattern matching, with chains, pipes. Use when designing processes or debugging BEAM issues.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Elixir Idioms Reference for writing idiomatic Elixir code with BEAM-aware patterns. ## Iron Laws — Never Violate These 1. **NO PROCESS WITHOUT A RUNTIME REASON** — Processes model concurrency, state, isolation—NOT code structure 2. **MESSAGES ARE COPIED** — Keep messages small (except binaries >64 bytes) 3. **GUARDS USE `and`/`or`/`not`** — Never use short-circuit operators in guards (guards require boolean operands) 4. **CHANGESETS FOR EXTERNAL DATA** — Use `cast/4` for user input, `change/2` for internal 5. **RESCUE ONLY FOR EXTERNAL CODE** — Never use rescue for control flow 6. **NO DYNAMIC ATOM CREATION** — `String.to_atom(user_input)` causes memory leak (atoms aren't GC'd) 7. **@external_resource FOR COMPILE-TIME FILES** — Modules reading files at compile time MUST declare `@external_resource` 8. **SUPERVISE ALL LONG-LIVED PROCESSES** — Never bare `GenServer.start_link`/`Agent.start_link` in production. Use supervision trees 9. **WRAP THIRD-PARTY LIBRARY APIs** — Always facade external deps behind a project-owned module. Enables swapping without touching callers …
Read the whole file at its exact version.
How to install
mdr add oliver-kriska/claude-elixir-phoenix/elixir-idioms@sha256:3078687a08f343d4The line at the top of this page pins the label git:20260611.6d29364, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_hy52ldi5c7csmwcj)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Mar 21, 2026 and Jun 11, 2026, about one every 20 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260611.6d29364 latest | 2026-06-11 | 6d29364 | 4,890 B | A | view · diff |
| git:20260604.dcd8bc0 | 2026-06-04 | dcd8bc0 | 4,508 B | A | view · diff |
| git:20260401.f2ab67a | 2026-04-01 | f2ab67a | 4,359 B | A | view · diff |
| git:20260325.d20c8dd | 2026-03-25 | d20c8dd | 4,509 B | A | view · diff |
| git:20260321.4e9d9e9 | 2026-03-21 | 4e9d9e9 | 4,486 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4890 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
oliver-kriska/claude-elixir-phoenix · 573 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_hy52ldi5c7csmwcj GET https://markdownregistry.com/api/v1/resolve?ref=oliver-kriska/claude-elixir-phoenix/elixir-idioms GET https://markdownregistry.com/api/v1/blob/3078687a08f343d4b3882dc3b112f00249d283a58ce27c861cae3c2c9198ee6a
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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