A guide for using OpenCode, an open-source command-line coding agent, from Kheish. It covers setup, compatibility, and when to delegate work to it.

Use it for feature work, refactoring, code review, or coding sessions that run for a long time, provided OpenCode is installed and authenticated.

It gives the agent the instructions needed to find and use the OpenCode program correctly.

opencode — Skill for Claude Code and Codex by graniet/kheish

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.

Any agent

npx skills add graniet/kheish --skill opencode

Clone the repo

git clone --depth 1 https://github.com/graniet/kheish

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/graniet/kheish/opencode/github.svg)](https://agentmods.dev/skills/graniet/kheish/opencode)

Your own site

<a href="https://agentmods.dev/skills/graniet/kheish/opencode"><img src="https://agentmods.dev/badge/skills/graniet/kheish/opencode/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/graniet/kheish/opencode"><img src="https://agentmods.dev/badge/skills/graniet/kheish/opencode.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,983 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin 81% copy Near-identical to another mod 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.

Model	Per session	Once invoked
Fable 5.1	$0.00000	$0.01983
Opus 5.5	$0.00000	$0.00793
Sonnet 5.5	$0.00000	$0.00397
Haiku 4.5	$0.00000	$0.00198

Measured 1mo ago against content hash ef8a7d34e161, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

opencode 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 1mo 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.

Origin

This is a copy

81% identical to opencode — 43 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/autonomous-ai-agents/opencode/SKILL.md · 239 lines

How it starts

The opening of the file, as written. The whole thing — 239 lines — stays where its author put it; the contents beside it link to each section on GitHub.

description: Delegate coding tasks to OpenCode CLI agent for feature implementation, refactoring, PR review, and long-running autonomous sessions. Requires the opencode CLI installed and authenticated. version: 1.2.0 license: MIT metadata: catalog: tags: - Coding-Agent - OpenCode - Autonomous - Refactoring - Code-Review related_skills: - claude-code - codex ---

Kheish Compatibility

This skill is repo-local and stays inactive until explicitly activated.

When the original instructions refer to legacy tool names, use these Kheish mappings:

terminal => bash
web_extract => web_fetch, plus web_search when discovery is needed
search_files => grep_search and glob_search
browser_* tools require a browser-capable surfaced tool or MCP; if none is available, use the closest available surface and say so explicitly

When the instructions mention local helper files, resolve them from ${KHEISH_SKILL_DIR}.

OpenCode CLI

Use OpenCode as an autonomous coding worker orchestrated by Kheish terminal/process tools. OpenCode is a provider-agnostic, open-source AI coding agent with a TUI and CLI.

When to Use

User explicitly asks to use OpenCode
You want an external coding agent to implement/refactor/review code
You need long-running coding sessions with progress checks
You want parallel task execution in isolated workdirs/worktrees

Prerequisites

OpenCode installed: npm i -g opencode-ai@latest or brew install anomalyco/tap/opencode
Auth configured: opencode auth login or set provider env vars (OPENROUTER_API_KEY, etc.)
Verify: opencode auth list should show at least one provider
Git repository for code tasks (recommended)
pty=true for interactive TUI sessions

Binary Resolution (Important)

Shell environments may resolve different OpenCode binaries. If behavior differs between your terminal and Kheish, check:

terminal(command="which -a opencode")
terminal(command="opencode --version")

Read the full file on GitHub · 239 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.

1mo ago First seen · 239 lines · 0 tokens per session scan A ef8a7d34e161

Subscribe to this mod's changes

opencode is a skill published in the GitHub repository graniet/kheish (221 stars, last pushed 2mo ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 1,983 tokens. A static security scan graded it A with 0 findings. It is 81% identical to opencode, differing in 43 lines, and is treated as a copy.

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