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opencode

opencode is a skill for Claude Code, Codex from kortix-ai/kortix-registry. It costs 129 tokens per session (4,226 once invoked), scanned B, original, no licence file.

An in-depth reference for OpenCode, the AI-agent framework used in this environment.

In plain words
What is it for?
Use it when working with OpenCode configuration, extensions, tools, commands, or session behavior.
Why use it?
It gives agents guidance on how OpenCode agents, skills, tools, commands, and sessions work.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

not rated 8repo 8mo ago B scan 129 tokens no licence

Good fit Use it when working with OpenCode configuration, extensions, tools, commands, or session behavior.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/kortix-ai/kortix-registry/opencode
View source ↗ kortix-ai/kortix-registry
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 kortix-ai/kortix-registry --skill opencode
Clone the repo
git clone --depth 1 https://github.com/kortix-ai/kortix-registry

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 opencode

README.md
[![agentmods](https://agentmods.dev/badge/skills/kortix-ai/kortix-registry/opencode/github.svg)](https://agentmods.dev/skills/kortix-ai/kortix-registry/opencode)
Your own site
<a href="https://agentmods.dev/skills/kortix-ai/kortix-registry/opencode"><img src="https://agentmods.dev/badge/skills/kortix-ai/kortix-registry/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.

agentmods 80×15 button for opencode

Your own site · 80×15
<a href="https://agentmods.dev/skills/kortix-ai/kortix-registry/opencode"><img src="https://agentmods.dev/badge/skills/kortix-ai/kortix-registry/opencode.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 129 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,226 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 5.1 $0.00129 $0.04226
Opus 5.5 $0.00052 $0.01690
Sonnet 5.5 $0.00026 $0.00845
Haiku 4.5 $0.00013 $0.00423

Measured 2mo ago against content hash 9a5fdab8ec65, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

opencode scanned grade B with 1 finding 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 2mo 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.

Enumerates other installed skillsmediumAgent snooping

Other skills' SKILL.md files reveal prompts, capabilities and secrets that should be invisible to peers.

2. **Project external dirs:** Walk up from project dir looking for `.claude/skills/`, `.agents/skills/`
files/skills/opencode/SKILL.md · 507 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2mo ago First seen · 507 lines · 129 tokens per session scan B 9a5fdab8ec65

Subscribe to this mod's changes

opencode is a skill published in the GitHub repository kortix-ai/kortix-registry (8 stars, last pushed 8mo ago), with no licence file. It adds 129 tokens to every session and 4,226 once invoked, about $0.0005 per session on Opus 5.5. A static security scan graded it B with 1 finding (enumerates other installed skills). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Building agents
Related

opencode compared with skills from other repositories

opencode next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
opencodekortix-ai/kortix-registrySkill88mo agononeB129Claude Code, Codex
imagegenopenai/codexSkill133kyesterdayApache-2.0A113Codex
playwright-climicrosoft/playwrightSkill99kyesterdayApache-2.0A19Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79k4d agoMITA200Claude Code, Codex
systematic-debuggingobra/superpowersSkill313k3d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143kyesterdayMITA95Claude Code
next-partial-prefetching-adoptionvercel/next.jsSkill143kyesterdayMITA103Claude Code