oc-create-command

A guided workflow for creating an OpenCode command, which is a reusable Markdown instruction invoked by OpenCode. It collects the command name and purpose, supports $VARIABLE settings, and validates the result.

In plain words
What is it for?
Use it when creating a new OpenCode command, especially one with configurable inputs or a repeatable multi-step workflow.
Why use it?
It turns an informal idea into a correctly structured command file and checks that the file is valid.

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

Made for: Claude Code, Codex.

Per session 58 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,455 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 $0.00058 $0.01455
Opus 5 $0.00029 $0.00727
Sonnet 5 $0.00012 $0.00291
Haiku 4.5 $0.00006 $0.00145

Measured 2d ago against content hash 8418bfb1d75b, 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-command 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.

claude/opencode-tools/skills/oc-create-command/SKILL.md · 198 lines

How it starts

The opening of the file, as written. The whole thing — 198 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Create OpenCode Command

You are initiating the OpenCode command creation workflow. This process guides the user through an interactive interview to gather requirements, generates a properly formatted command markdown 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.


Phase 1: Load References

Read the OpenCode platform overview and command guide:

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

Phase 2: Interview

Gather requirements through a structured interview.

Round 1: Basics

Question 1 — Command Name:

  • Header: "Command Name"
  • Question: "What should this command be named? It will be invoked as /{name}. Use kebab-case."
  • Options:
    • "I'll type the name" — Let me provide a custom name

Question 2 — Purpose:

  • Header: "Purpose"
  • Question: "What does this command do?"
  • Options:
    • "Workflow shortcut" — Automates a frequently used multi-step process
    • "Template task" — Structured prompt with variable inputs
    • "Scripted operation" — Executes specific tool sequences
    • "Custom" — I'll describe it

Question 3 — Description:

  • Header: "Description"
  • Question: "Briefly describe what this command does (shown in the command list)."
  • Options:
    • "I'll type a description" — Let me write a custom description

Round 2: Variables & Model

Question 1 — Variables:

  • Header: "Variables"
  • Question: "Does the command need user-provided input via $VARIABLE placeholders?"
  • Options:
    • "Yes, I'll list them" — I need specific named variables
    • "Just $ARGUMENTS" — A single free-text argument
    • "No variables" — The command works without user input
  • multiSelect: false

If "Yes":

Question 2 — Variable Names:

  • Header: "Var Names"
  • Question: "List the variable names (e.g., FILE_PATH, TARGET_BRANCH, OUTPUT_FORMAT). Each becomes a $VARIABLE prompt."
  • Options:
    • "I'll type them" — Let me list the variable names

Read the full file on GitHub · 198 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 · 198 lines · 58 tokens per session scan A 8418bfb1d75b

Subscribe to this mod's changes

oc-create-command is a skill published in the GitHub repository sequenzia/agent-alchemy (43 stars, last pushed 3mo ago), licensed MIT. It adds 58 tokens to every session and 1,455 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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