oc-create-skill

oc-create-skill is a skill for Claude Code, Codex from sequenzia/agent-alchemy. It costs 62 tokens per session (1,731 once invoked), scanned A, original, MIT.

A guided process for creating an OpenCode-compatible skill, which is a reusable set of instructions for the OpenCode coding assistant. It interviews the user, creates a properly formatted SKILL.md file, and validates it.

In plain words
What is it for?
Use it when creating a new OpenCode skill or a SKILL.md file. It helps define the skill’s purpose and requirements, then checks that the result follows the expected structure.
Why use it?
It turns an idea into a consistent skill file without requiring the author to know the required format. The interview gathers the details needed before generating the file.

Skill for Claude CodeCodex

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/oc-create-skill
Any agent
npx skills add sequenzia/agent-alchemy --skill oc-create-skill
Clone the repo
git clone --depth 1 https://github.com/sequenzia/agent-alchemy

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.

agentmods badge for oc-create-skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/sequenzia/agent-alchemy/oc-create-skill.svg)](https://agentmods.dev/skills/sequenzia/agent-alchemy/oc-create-skill)
Your own site
<a href="https://agentmods.dev/skills/sequenzia/agent-alchemy/oc-create-skill"><img src="https://agentmods.dev/badge/skills/sequenzia/agent-alchemy/oc-create-skill.svg" alt="Measured on agentmods" height="20"></a>
Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,731 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 $0.00062 $0.01731
Opus 5 $0.00031 $0.00865
Sonnet 5 $0.00012 $0.00346
Haiku 4.5 $0.00006 $0.00173

Measured 3d ago against content hash 8486e2df126f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

oc-create-skill 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 3d 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/opencode-tools/skills/oc-create-skill/SKILL.md · 230 lines

How it starts

The opening of the file, as written. The whole thing — 230 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Create OpenCode Skill

You are initiating the OpenCode skill creation workflow. This process guides the user through an interactive interview to gather requirements, generates a properly formatted SKILL.md file, and validates the result.

Critical Rules

AskUserQuestion is MANDATORY

IMPORTANT: You MUST use the AskUserQuestion tool for ALL questions to the user. Never ask questions through regular text output.

  • Every interview question → AskUserQuestion
  • Confirmation questions → AskUserQuestion
  • Clarifying questions → AskUserQuestion

Text output should only be used for summaries, explanations, and presenting information.


Phase 1: Load References

Read the OpenCode platform overview and skill guide:

  1. Read ${CLAUDE_PLUGIN_ROOT}/references/platform-overview.md
  2. Read ${CLAUDE_PLUGIN_ROOT}/references/skill-guide.md

Store the reference content internally for use throughout the workflow.


Phase 2: Interview

Gather requirements through a structured interview using AskUserQuestion.

Round 1: Basics

Ask these questions using AskUserQuestion (max 4 per call):

Question 1 — Skill Name:

  • Header: "Skill Name"
  • Question: "What should this skill be named? Use kebab-case (e.g., code-review, deploy-check)."
  • Options:
    • "I'll type the name" — Let me provide a custom name

Question 2 — Purpose:

  • Header: "Purpose"
  • Question: "What does this skill do? Describe its main function."
  • Options:
    • "Code analysis" — Analyzes code for patterns, issues, or quality
    • "Workflow automation" — Automates a multi-step process
    • "Content generation" — Generates code, docs, or other content

Question 3 — User-Invocable:

  • Header: "Invocable"
  • Question: "Should users be able to invoke this skill directly (via /skill-name)?"
  • Options:
    • "Yes (Recommended)" — Users can invoke it from the command dialog
    • "No" — Helper skill only loaded by other skills
  • multiSelect: false

Round 2: Details

Question 1 — Target Audience:

  • Header: "Audience"
  • Question: "Who is the primary user of this skill?"
  • Options:
    • "Developers" — Software developers working on code
    • "DevOps/SRE" — Operations and reliability engineers
    • "All users" — General-purpose, no specific expertise needed

Read the full file on GitHub · 230 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. 3d ago First seen · 230 lines · 62 tokens per session scan A 8486e2df126f

Subscribe to this mod's changes

oc-create-skill is a skill published in the GitHub repository sequenzia/agent-alchemy (43 stars, last pushed 3mo ago), licensed MIT. It adds 62 tokens to every session and 1,731 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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