nw-fp-erlang-elixir SKILL.md skillA
nw-fp-erlang-elixir from nwave-ai/nwave is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nwave-ai/nwave/nw-fp-erlang-elixir@git:20261102.c67d57bPins git:20261102.c67d57b in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- nwave-ai/nwave
- Path
nWave/skills/nw-fp-erlang-elixir/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261102.c67d57b, committed Nov 2, 2026
- Size
- 8,949 bytes
- Repository stars
- 633
- License
- MIT
Erlang/Elixir language-specific patterns, OTP as the effect model, and runtime-enforced immutability.
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
# FP in Erlang/Elixir -- Functional Software Crafter Skill
Cross-references: [fp-principles](../nw-fp-principles/SKILL.md) | [fp-domain-modeling](../nw-fp-domain-modeling/SKILL.md) | [pbt-erlang-elixir](../nw-pbt-erlang-elixir/SKILL.md)
## When to Choose Erlang/Elixir
- Best for: fault-tolerant distributed systems | massive concurrency (millions of lightweight processes) | soft
real-time (telecom, messaging, payments) | hot code reload without downtime
- Not ideal for: CPU-bound numeric computation | teams needing static types at compile time | small scripts where
the BEAM's operational surface (release, clustering) is pure overhead
Elixir is shown below (more common entry point); Erlang differs in syntax, not in the model -- both compile to
BEAM bytecode and share OTP, so every pattern below applies to Erlang under a different concrete syntax.
## [STARTER] Quick Setup
```bash
mix new order_service --sup
cd order_service
# Add stream_data to mix.exs deps for property-based testing
mix deps.get && mix test
```
**Test runner**: `mix test`. Add `{:stream_data, "~> 1.0", only: :test}` to `deps`.
## [STARTER] Type System for Domain Modeling
…Read the whole file at its exact version.
How to install
mdr add nwave-ai/nwave/nw-fp-erlang-elixir@sha256:e2dabf23ba87d341The line at the top of this page pins the label git:20261102.c67d57b, 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_dpfv5im3dxrqlcj6)
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Versions
The registry has recorded 1 version of this file, committed on Nov 2, 2026.
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 (8949 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
nwave-ai/nwave · 633 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_dpfv5im3dxrqlcj6 GET https://markdownregistry.com/api/v1/resolve?ref=nwave-ai/nwave/nw-fp-erlang-elixir GET https://markdownregistry.com/api/v1/blob/e2dabf23ba87d34108fdc23ba422c8ff48bce4d164b060ce09db195ee8902e14
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.