quick

quick is a skill for Claude Code from oliver-kriska/claude-elixir-phoenix. It costs 31 tokens per session (792 once invoked), scanned A, original, MIT.

A guide for making small Elixir and Phoenix code changes directly, without a separate planning process.

In plain words
What is it for?
Use it for small tasks such as adding validations, changing routes, updating components, creating migrations, or fixing a redirect.
Why use it?
It keeps narrowly scoped changes focused while still requiring checks such as compilation, formatting, and security review.

Skill for Claude Code

Written for Claude Code: effort in frontmatter.

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

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.

agentmods
npx agentmods add skills/oliver-kriska/claude-elixir-phoenix/quick
Any agent
npx skills add oliver-kriska/claude-elixir-phoenix --skill quick
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 quick

README.md
[![agentmods](https://agentmods.dev/badge/skills/oliver-kriska/claude-elixir-phoenix/quick.svg)](https://agentmods.dev/skills/oliver-kriska/claude-elixir-phoenix/quick)
Your own site
<a href="https://agentmods.dev/skills/oliver-kriska/claude-elixir-phoenix/quick"><img src="https://agentmods.dev/badge/skills/oliver-kriska/claude-elixir-phoenix/quick.svg" alt="Measured on agentmods" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 792 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00031 $0.00792
Opus 5 $0.00015 $0.00396
Sonnet 5 $0.00006 $0.00158
Haiku 4.5 $0.00003 $0.00079

Measured 2d ago against content hash 38aee127ba09, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

quick 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 2d 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/quick/SKILL.md · 156 lines

How it starts

The opening of the file, as written. The whole thing — 156 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Quick Mode

Skip the planning ceremony. Get working code fast.

Usage

/phx:quick Add pagination to posts
/phx:quick Fix the login redirect bug
/phx:quick Add CSV export to reports

Arguments

$ARGUMENTS = What to implement

How It Differs

Normal Mode Quick Mode
Spawn research agents No agents
Create plan document Mental model only
Parallel review Optional single review
Multiple iterations Single pass

Workflow

  1. Understand - Read relevant files (max 3)
  2. Implement - Write code directly
  3. Verify - Quick compile check
  4. Done - No ceremony

Iron Laws

  1. NEVER skip verification — run mix compile --warnings-as-errors after every change, even in quick mode
  2. DO NOT touch files outside the stated scope — quick mode means minimal blast radius; if a fix requires changes across multiple domains, escalate to /phx:plan
  3. NEVER bypass security checks for speed — auth, input validation, and XSS rules apply regardless of change size

Rules in Quick Mode

Still Enforced (Iron Laws)

  • ✓ No process without runtime reason
  • ✓ No DB in mount
  • ✓ Security basics (no SQL injection, etc.)
  • ✓ Run mix format

Skipped

  • ✗ Parallel agent research
  • ✗ Written plan document
  • ✗ Multiple review passes
  • ✗ Documentation updates

When to Use

Good for:

  • Bug fixes with clear solution
  • Small features (<100 lines)
  • Refactoring with tests
  • Adding fields/columns
  • UI tweaks

Not for:

  • New authentication flows
  • Payment integration
  • Data migrations
  • Architectural changes
  • Anything touching security

Quick Patterns

Add Field

/quick Add phone field to users

→ Migration + schema + changeset + form field

Fix Bug

/quick Fix: posts not showing for admin users

→ Find issue + fix + verify

Add Endpoint

/quick Add GET /api/health endpoint

→ Route + controller + response

Escape Hatch

Read the full file on GitHub · 156 lines

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. 2d ago First seen · 156 lines · 31 tokens per session scan A 38aee127ba09

Subscribe to this mod's changes

quick is a skill published in the GitHub repository oliver-kriska/claude-elixir-phoenix (538 stars, last pushed yesterday), licensed MIT. It adds 31 tokens to every session and 792 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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