Supercode Autoinvoke Skill Gate

You install a lot of skills globally. Most of them are meant for you to invoke — not for the model to grab on its own.

Claude Code, Codex, and OpenCode 2 beta already have a way to say "don't auto-invoke me". OpenCode v1 just ignores it, so the model sees every installed skill and may pick the wrong one by itself.

This plugin stops the model from auto-using your manual-only skills. It removes those manual-only skills from <available_skills> in the system prompt, so the model never considers them.

• Smaller prompt, fewer tokens, less deliberating over which skill to pick.
• Fewer surprise side effects from a skill firing when you didn't ask for it.
• Nothing is blocked: /my-skill or "use my-skill" still works — it just never happens automatically.

How to mark a skill as manual-only

Any one of these is enough:

• Claude Code — in SKILL.md frontmatter:

  ---
  disable-model-invocation: true
  ---
  

• OpenCode v2 — in SKILL.md frontmatter:

  ---
  metadata:
    opencode/autoinvoke: false
  ---
  

• Codex — in agents/openai.yaml next to SKILL.md:

  policy:
    allow_implicit_invocation: false
  

Only real booleans count (true / false, no quotes).

Install

Install with the OpenCode CLI:

opencode plugin add @glaicer/supercode-autoinvoke-skill-gate

• --global installs into the global config (~/.config/opencode); default is local (.opencode in the current project).
• --force replaces an already-installed version.
• Restart OpenCode after installing.

Manual install also works: add the package to the plugins array in opencode.json (OpenCode v1 uses the plugin array instead):

{
  "$schema": "https://opencode.ai/config.json",
  "plugins": ["@glaicer/supercode-autoinvoke-skill-gate"]
}

Restart OpenCode after saving.

Put it last in your plugins (or v1 plugin) list so no later plugin re-adds the filtered skills.

On OpenCode v2 the plugin sets the native autoinvoke: false flag on Explicit-only skills instead of patching the system prompt; on v1 it filters <available_skills> via the experimental.chat.system.transform hook.

Install on OpenCode v1

On OpenCode v1 install plugin version 0.1.2. Pin the version in the spec below; a bare package name resolves to latest:

opencode plugin @glaicer/supercode-autoinvoke-skill-gate@0.1.2 --global

• --global (-g) writes into the global config (~/.config/opencode/opencode.json); default is project-local (.opencode/opencode.json).
• If the plugin is already configured without a version, rerun with --force (-f) to replace that entry with the pinned spec — otherwise the command reports Already configured and keeps the unpinned entry.

Manual install also works: put the pinned spec in the plugin array (v1's key, not plugins) of opencode.json:

{
  "$schema": "https://opencode.ai/config.json",
  "plugin": ["@glaicer/supercode-autoinvoke-skill-gate@0.1.2"]
}

v1 resolves the npm spec (including the version) and installs it automatically at startup — no npm install needed. Restart OpenCode after saving.