oc-update-command

A workflow for bringing an existing OpenCode command file up to date with current OpenCode guidance. It finds the command, reviews it, updates it, and checks the result.

In plain words
What is it for?
Use it to update or migrate an OpenCode command, fix problems in a command file, or modernize a command found in your project or user configuration.
Why use it?
It helps remove outdated command patterns and reduces the chance that an existing command no longer follows the platform’s current rules.

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

Made for: Claude Code, Codex.

Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,163 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 $0.01163
Opus 5 $0.00031 $0.00581
Sonnet 5 $0.00012 $0.00233
Haiku 4.5 $0.00006 $0.00116

Measured 2d ago against content hash b1eb54a31c6b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

oc-update-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-update-command/SKILL.md · 177 lines

How it starts

The opening of the file, as written. The whole thing — 177 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Update OpenCode Command

You are initiating the OpenCode command update workflow. This process locates an existing command, researches current platform best practices, analyzes the command for issues, and applies updates with validation.

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: Locate Command

Find the command to update.

If $ARGUMENTS is provided:

  1. Check if the argument is a file path — read it directly
  2. If it's a command name — search for {name}.md in known directories

If no arguments:

  1. Search for OpenCode commands in the workspace:
    • Glob for .opencode/commands/*.md
    • Glob for ~/.config/opencode/commands/*.md
  2. Present found commands using AskUserQuestion:
    • Header: "Select Command"
    • Question: "Which command would you like to update?"
    • Options: List found commands (up to 4; include "Other" for custom path)

Read the selected command file and store its contents.


Phase 3: Research

Spawn the researcher agent to check latest documentation:

Task:
  subagent_type: "agent-alchemy-opencode-tools:oc-researcher"
  prompt: |
    Research the latest OpenCode documentation for command format compatibility.

    Artifact type: command
    Current artifact content:
    ---
    {contents of the command file}
    ---

    Specific questions:
    1. Are there any new command frontmatter fields?
    2. Has the $VARIABLE system changed?
    3. Are there new command discovery paths?
    4. Any changes to the model override behavior?

    Reference guide: ${CLAUDE_PLUGIN_ROOT}/references/command-guide.md

Phase 4: Analyze

Compare the existing command against current best practices:

Read the full file on GitHub · 177 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 · 177 lines · 62 tokens per session scan A b1eb54a31c6b

Subscribe to this mod's changes

oc-update-command 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 1,163 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.

Related

Other skills, from other repositories

rulesync

Generates and syncs AI rule configuration files (.cursorrules, CLAUDE.md, copilot-instructions.md) across 20+ coding tools from a single source. Use when syncing AI rules, running rulesync commands, importing or generating rule files, or managing shared AI coding configurations.

dyoshikawa/rulesync · 64 tokens

establishing-project-context

Use when the user asks to establish shared project language, or project work exposes a conflicting, renamed, or deprecated domain term that needs active semantic modeling. Routine small tasks stay on the fast path.

GanyuanRan/Aegis · 45 tokens

autoprompt

Explicit-only useful-first orchestration. Invoke /autoprompt to turn a mission into one executable roadmap, build dependency-safe lanes, and verify the result with independent reviewers. Never infer invocation from ordinary requests. Never resume from leftover artifacts without an explicit resume instruction.

Spielewoy/autoprompt-skill · 56 tokens

memstack-business-gdpr

Use this skill when the user says 'GDPR', 'data protection', 'privacy compliance', 'DPA', 'DSAR', 'data subject request', 'cookie consent', 'privacy audit', 'CCPA', or asks 'do I need GDPR for this repo'. Scans the repository to detect what personal data is collected, classifies sensitivity, determines whether GDPR…

cwinvestments/memstack · 121 tokens

echo

Use when the user references past sessions, asks 'what did we do', 'do you remember', 'last session', 'recall', or 'continue from'.

cwinvestments/memstack · 35 tokens

backend-builder

Используй только внутри активного Codex Project Autopilot-проекта по утверждённому плану; не включай для обычных backend-задач вне автопилота.

hashgraph-online/awesome-codex-plugins · 43 tokens