What is phoenix-framework?

A guide for Phoenix, an Elixir web framework used to build websites and web applications. It covers the web layer, including controllers, views, and LiveView pages that update without full page reloads.

It supports work on routes, controllers, HTML pages, LiveView interfaces, authentication, database-backed features, and development commands.

It helps an agent use Phoenix conventions and related tools correctly when changing or extending a Phoenix application.

phoenix-framework — Skill for Claude Code and Codex by agentjido

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 agentjido/jido_managed_agents --skill phoenix-framework

Clone the repo

git clone --depth 1 https://github.com/agentjido/jido_managed_agents

Made for: Claude Code, Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/agentjido/jido_managed_agents/phoenix-framework/github.svg)](https://agentmods.dev/skills/agentjido/jido_managed_agents/phoenix-framework)

Your own site

<a href="https://agentmods.dev/skills/agentjido/jido_managed_agents/phoenix-framework"><img src="https://agentmods.dev/badge/skills/agentjido/jido_managed_agents/phoenix-framework/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/agentjido/jido_managed_agents/phoenix-framework"><img src="https://agentmods.dev/badge/skills/agentjido/jido_managed_agents/phoenix-framework.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 29 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 624 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.

Model	Per session	Once invoked
Fable 5.1	$0.00029	$0.00624
Opus 5.5	$0.00012	$0.00250
Sonnet 5.5	$0.00006	$0.00125
Haiku 4.5	$0.00003	$0.00062

Measured 1mo ago against content hash 4411e66296a4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

phoenix-framework 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 1mo 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.

.amp/skills/phoenix-framework/SKILL.md · 57 lines

How it starts

The opening of the file, as written. The whole thing — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Additional References

Searching Documentation

mix usage_rules.search_docs "search term" -p phoenix -p phoenix_ecto -p phoenix_html -p phoenix_live_dashboard -p phoenix_live_reload -p phoenix_live_view

Available Mix Tasks

mix compile.phoenix
mix phx - Prints Phoenix help information
mix phx.digest - Digests and compresses static files
mix phx.digest.clean - Removes old versions of static assets.
mix phx.gen - Lists all available Phoenix generators
mix phx.gen.auth - Generates authentication logic for a resource
mix phx.gen.auth.hashing_library
mix phx.gen.auth.injector
mix phx.gen.auth.migration
mix phx.gen.cert - Generates a self-signed certificate for HTTPS testing
mix phx.gen.channel - Generates a Phoenix channel
mix phx.gen.context - Generates a context with functions around an Ecto schema
mix phx.gen.embedded - Generates an embedded Ecto schema file
mix phx.gen.html - Generates context and controller for an HTML resource
mix phx.gen.json - Generates context and controller for a JSON resource
mix phx.gen.live - Generates LiveView, templates, and context for a resource
mix phx.gen.notifier - Generates a notifier that delivers emails by default
mix phx.gen.presence - Generates a Presence tracker
mix phx.gen.release - Generates release files and optional Dockerfile for release-based deployments
mix phx.gen.schema - Generates an Ecto schema and migration file
mix phx.gen.secret - Generates a secret
mix phx.gen.socket - Generates a Phoenix socket handler
mix phx.routes - Prints all routes
mix phx.server - Starts applications and their servers
mix compile.phoenix_live_view
mix phoenix_live_view.upgrade

Read the full file on GitHub · 57 lines

Files

What ships with it

5 files 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.

1mo ago First seen · 57 lines · 29 tokens per session scan A 4411e66296a4

Subscribe to this mod's changes

phoenix-framework is a skill published in the GitHub repository agentjido/jido_managed_agents (23 stars, last pushed 21d ago), licensed Apache-2.0. It adds 29 tokens to every session and 624 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-30.

Backend and APIs application elixir example jido managed-agents phoenix

phoenix

Use when building an Elixir web app with Phoenix — contexts, Ecto schemas, changesets and migrations, LiveView, channels and PubSub, the generators, and the boundary between domain logic and the web layer. Covers the classic LiveView over-rendering and Ecto N+1 traps. NOT pure OTP work with no web or Ecto layer …

ericrisco/rsc-harness · 89 tokens

phoenix-framework

Getting it into your agent

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Nothing flagged

How it starts

Additional References

Searching Documentation

Available Mix Tasks

What ships with it

What this file has done since we first saw it

Other skills, from other repositories

phoenix

elixir-expert

elixir-phoenix-full

elixir-phoenix-work

elixir-phoenix-help

elixir-phoenix-liveview-patterns