port-master

port-master is a skill for Claude Code, Codex from sequenzia/agent-alchemy. It costs 182 tokens per session (11,238 once invoked), scanned A, original, MIT.

A converter that rewrites Claude Code plugins into platform-neutral files for other coding-agent systems.

In plain words
What is it for?
It converts plugin skills, agents, and hooks into separate generic components, or combines them into skills in flatten mode.
Why use it?
It removes Claude Code-specific implementation details, so developers can understand and adapt a plugin without learning Claude Code’s internals.

Skill for Claude CodeCodex

Installs and runs on its own, but its text points at files inside its plugin — anything it tells you to read at a ${CLAUDE_PLUGIN_ROOT} path is only there once the plugin is installed. Installing the plugin gets both.

Part of the agent-alchemy-plugin-tools plugin — 6 skills, 2 agents 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/sequenzia/agent-alchemy/port-master
Any agent
npx skills add sequenzia/agent-alchemy --skill port-master
Clone the repo
git clone --depth 1 https://github.com/sequenzia/agent-alchemy

Made for: Claude Code, Codex.

Or install agent-alchemy-plugin-tools, the plugin that ships this one along with the rest of its 6 skills, 2 agents.

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 port-master

README.md
[![agentmods](https://agentmods.dev/badge/skills/sequenzia/agent-alchemy/port-master.svg)](https://agentmods.dev/skills/sequenzia/agent-alchemy/port-master)
Your own site
<a href="https://agentmods.dev/skills/sequenzia/agent-alchemy/port-master"><img src="https://agentmods.dev/badge/skills/sequenzia/agent-alchemy/port-master.svg" alt="Measured on agentmods" height="20"></a>
Per session 182 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 11,238 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 $0.00182 $0.11238
Opus 5 $0.00091 $0.05619
Sonnet 5 $0.00036 $0.02248
Haiku 4.5 $0.00018 $0.01124

Measured 5d ago against content hash 86908d21f9e4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

port-master 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.

claude/plugin-tools/skills/port-master/SKILL.md · 1,028 lines

How it starts

The opening of the file, as written. The whole thing — 1,028 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Port Master

Extract the platform-agnostic intent from Claude Code plugins, producing clean markdown files that any agent harness developer can read and adapt. The output preserves the what and why of each skill, agent, and hook while removing implementation details tied to Claude Code.

The goal is portability through clarity — a developer familiar with any agent framework should be able to read the output and integrate it into their system without needing to understand Claude Code's internals.

Three output modes are supported:

  • Full mode (default): Produces skills, agents, and hooks — preserves the original component structure in generic format. Supports two output layouts:
    • Per-group (default): Each plugin group gets its own subdirectory with separate manifest and integration guide.
    • Unified (--unified): All groups merged into a single directory — one manifest, one integration guide, components organized by type. Cross-group dependencies become internal. Only meaningful when converting multiple groups.
  • Flatten mode (--flatten): Produces skills only — agents are converted to skills, hooks are absorbed into a lifecycle-hooks skill. Use this for agent harnesses that only support skills and not agents or hooks.
  • Nested mode (--nested): Agents become pure markdown instruction files nested within their parent skill's agents/ directory. Hooks are absorbed into a lifecycle-hooks skill. Use this for harnesses that support sub-agent delegation but use skills as the primary organizational unit.

Complete ALL 5 phases. After completing each phase, immediately proceed to the next without waiting for user prompts.

Critical Rules

AskUserQuestion is MANDATORY

Use the AskUserQuestion tool for ALL questions to the user. Never ask questions through regular text output.

  • Selection questions → AskUserQuestion
  • Confirmation questions → AskUserQuestion
  • Clarifying questions → AskUserQuestion

Text output is only for status updates, summaries, and informational context.

Read the full file on GitHub · 1,028 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 · 1,028 lines · 182 tokens per session scan A 86908d21f9e4

Subscribe to this mod's changes

port-master is a skill published in the GitHub repository sequenzia/agent-alchemy (44 stars, last pushed 3mo ago), licensed MIT. It adds 182 tokens to every session and 11,238 once invoked, about $0.0009 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 2026-08-30.

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