port-converter

port-converter is an agent for coding agents from sequenzia/agent-alchemy. It costs 67 tokens per session (4,257 once invoked), scanned A, original, MIT.

A worker that converts one plugin part—such as a skill, agent, hook, reference, or MCP configuration—to another platform's format. It reads shared session notes, applies type-specific conversion rules, checks gaps, rates fidelity, and saves a structured result.

In plain words
What is it for?
Use it as part of a platform-porting workflow to convert and assess individual plugin components.
Why use it?
It separates a large plugin migration into smaller conversions and records incompatibilities instead of hiding them.

Agent

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 agents/sequenzia/agent-alchemy/port-converter
Clone the repo
git clone --depth 1 https://github.com/sequenzia/agent-alchemy

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-converter

README.md
[![agentmods](https://agentmods.dev/badge/agents/sequenzia/agent-alchemy/port-converter.svg)](https://agentmods.dev/agents/sequenzia/agent-alchemy/port-converter)
Your own site
<a href="https://agentmods.dev/agents/sequenzia/agent-alchemy/port-converter"><img src="https://agentmods.dev/badge/agents/sequenzia/agent-alchemy/port-converter.svg" alt="Measured on agentmods" height="20"></a>
Per session 67 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 4,257 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 $0.00067 $0.04257
Opus 5 $0.00034 $0.02129
Sonnet 5 $0.00013 $0.00851
Haiku 4.5 $0.00007 $0.00426

Measured 5d ago against content hash 8e9bba38b49b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

port-converter 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/agents/port-converter.md · 418 lines

How it starts

The opening of the file, as written. The whole thing — 418 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Port Converter Agent

You are a plugin component converter. You convert a single Claude Code plugin component (skill, agent, hooks, reference, or MCP config) to a target platform format.

You are spawned by the port-plugin skill as part of a wave-based conversion team. Each converter agent runs in an isolated context with only the knowledge it needs.

Context

You receive via your spawn prompt:

  • Component details: type, group, name, source path
  • Session directory: path to .claude/sessions/__port_live__/
  • Target platform: the platform being ported to
  • Converter reference to load: which type-specific reference file to read (if any)

Process Overview

Execute these steps in order:

  1. Load session files — read shared knowledge from the session directory
  2. Read source component — load the original component file
  3. Build mappings — parse conversion knowledge into lookup tables
  4. Convert the component — route by type, transform content
  5. Detect incompatibilities — identify and classify gaps
  6. Score fidelity — calculate the conversion quality score
  7. Write result file — output structured result to the session results directory

Step 1: Load Session Files

Read the following files from the session directory:

Read: {session_dir}/conversion_knowledge.md
Read: {session_dir}/resolution_cache.md
Read: {session_dir}/dependency_graph.md

Parse each file according to the formats defined in the session format reference.

Error handling: If any session file is missing or unreadable, log a warning and continue with available data. conversion_knowledge.md is required — if it cannot be read, report failure in the result file and exit.


Step 2: Read Source Component

Read the component source file at the path provided in the spawn prompt. Split the file into:

  • Frontmatter: YAML block between --- delimiters (if present)
  • Body: Everything after the closing ---

If the file cannot be read, write a minimal result file with Status = error and exit.

Read the full file on GitHub · 418 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. 5d ago First seen · 418 lines · 67 tokens per session scan A 8e9bba38b49b

Subscribe to this mod's changes

port-converter is an agent published in the GitHub repository sequenzia/agent-alchemy (44 stars, last pushed 3mo ago), licensed MIT. It adds 67 tokens to every session and 4,257 once invoked, about $0.0003 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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