# Harness matrix — bootstrap ModTrick on every code agent

| Harness | Skill path | Project file | Invoke | Notes |
|---------|------------|--------------|--------|-------|
| **Grok Build** | `~/.grok/skills/modtrick/SKILL.md` | `AGENTS.md` | `/modtrick`, “everything is a mod” | May need session reload after skill install |
| **Claude Code** | `~/.claude/skills/modtrick/SKILL.md` | `CLAUDE.md` or `AGENTS.md` | skill description triggers | Prefer Skill tool |
| **Codex** | `.codex/skills/modtrick/` or user skills | `AGENTS.md` | read AGENTS first | Keep ONBOARD link in AGENTS.md |
| **Cursor** | `.cursor/skills/modtrick/` | `.cursor/rules/modtrick.mdc` | rules on `mods/**` | `alwaysApply: false` recommended |
| **Generic LLM IDE** | n/a | `AGENTS.md` + `llms.txt` | open bootstrap.json | Fetch URLs always work |

## Universal first action

```
GET https://modtrick.com/agents/bootstrap.json
```

If DNS not ready:

```
GET https://modtrick.pages.dev/agents/bootstrap.json
```

## Install command (all Windows agents)

```powershell
python "C:\Users\New Owner\Documents\modtrick\pkg\install.py"
```

Or from site after deploy:

```powershell
iwr https://modtrick.com/pkg/install.py -OutFile install-modtrick.py
py install-modtrick.py
```