intro

intro is a skill for Claude Code from oliver-kriska/claude-elixir-phoenix. It costs 44 tokens per session (575 once invoked), scanned A, original, MIT.

An interactive tutorial for learning the Elixir and Phoenix plugin's commands, workflow, and features. It presents the material in six sections and lets the learner choose where to continue.

In plain words
What is it for?
Learning what the plugin can do, how its main workflows fit together, and where to find its command reference.
Why use it?
It gives new users a guided introduction instead of requiring them to understand the plugin's commands in advance.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter. Also seen: mentions subagents; names the AskUserQuestion tool.

Part of the phx plugin — 50 skills, 26 agents, 10 hooks shipped together

Good fit Learning what the plugin can do, how its main workflows fit together, and where to find its command reference.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/oliver-kriska/claude-elixir-phoenix/intro
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add oliver-kriska/claude-elixir-phoenix --skill intro
Clone the repo
git clone --depth 1 https://github.com/oliver-kriska/claude-elixir-phoenix

Made for: Claude Code.

Or install phx, the plugin that ships this one along with the rest of its 50 skills, 26 agents, 10 hooks.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for intro

README.md
[![agentmods](https://agentmods.dev/badge/skills/oliver-kriska/claude-elixir-phoenix/intro.svg)](https://agentmods.dev/skills/oliver-kriska/claude-elixir-phoenix/intro)
Your own site
<a href="https://agentmods.dev/skills/oliver-kriska/claude-elixir-phoenix/intro"><img src="https://agentmods.dev/badge/skills/oliver-kriska/claude-elixir-phoenix/intro.svg" alt="Measured on agentmods" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 575 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00044 $0.00575
Opus 5 $0.00022 $0.00287
Sonnet 5 $0.00009 $0.00115
Haiku 4.5 $0.00004 $0.00057

Measured 5d ago against content hash 38d2bf2b1907, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

intro scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

plugins/elixir-phoenix/skills/intro/SKILL.md · 66 lines

How it starts

The opening of the file, as written. The whole thing — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Plugin Introduction Tutorial

Interactive walkthrough of the Elixir/Phoenix plugin in 6 sections (~5 min).

Arguments

  • $ARGUMENTS may contain --section N to jump to a specific section (1-6)
  • No arguments = start from Section 1

Execution Flow

  1. Read ${CLAUDE_SKILL_DIR}/references/tutorial-content.md for all section content
  2. Parse $ARGUMENTS for --section N flag (1-6)
  3. If --section N specified, jump directly to that section
  4. Otherwise start from Section 1

Section Presentation Loop

For each section:

  1. Present the section content completely — do NOT abbreviate or summarize. Every paragraph, table, and code block in the reference file must appear in output — as visible response text emitted BEFORE the AskUserQuestion call; content composed only in thinking is invisible to the user
  2. After presenting, use AskUserQuestion with options:
    • If sections remain: "Next: [next section title]", "Skip to Cheat Sheet", "Stop here"
    • If on final section (6): no question needed, end with closing message

Section Titles

N Title
1 Welcome
2 Core Workflow Commands
3 Knowledge & Safety Net
4 Hooks & Behavioral Rules
5 Init, Review & Gaps
6 Cheat Sheet & Next Steps

Iron Laws

  1. ONE section at a time — never dump all content at once
  2. User controls pace — always offer to stop between sections
  3. Clean formatting — use tables and code blocks, not walls of text
  4. NEVER skip the user's questions — tutorial is interactive, not a monologue; if the user asks a question mid-section, answer it before continuing

Closing Message

After Section 6 (or when user stops):

You're all set! Try `/phx:plan` with your next feature to see the workflow in action.
Run `/phx:intro --section N` anytime to revisit a specific section.

Notes

  • This runs in main conversation context (not a subagent)
  • Reference file is readable since skill runs in user's session
  • Keep tone welcoming but concise — developers don't want fluff

Read the full file on GitHub · 66 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 66 lines · 44 tokens per session scan A 38d2bf2b1907

Subscribe to this mod's changes

intro is a skill published in the GitHub repository oliver-kriska/claude-elixir-phoenix (541 stars, last pushed 3d ago), licensed MIT. It adds 44 tokens to every session and 575 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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