feat: add Codex plugin support

.agents/plugins/marketplace.json

@@ -0,0 +1,21 @@
+{
+    "name": "propulsion",
+    "interface": {
+        "displayName": "Propulsion",
+        "developerName": "Moon Pixels"
+    },
+    "plugins": [
+        {
+            "name": "propulsion",
+            "source": {
+                "source": "local",
+                "path": "./"
+            },
+            "policy": {
+                "installation": "AVAILABLE",
+                "authentication": "ON_INSTALL"
+            },
+            "category": "Coding"
+        }
+    ]
+}

.agents/skills

@@ -0,0 +1 @@
+../skills

.codex-plugin/plugin.json

@@ -0,0 +1,47 @@
+{
+    "name": "propulsion",
+    "version": "1.0.0",
+    "description": "Propulsion workflow routing and skills for agentic coding.",
+    "author": {
+        "name": "Moon Pixels"
+    },
+    "homepage": "https://github.com/moonpixels/propulsion",
+    "repository": "https://github.com/moonpixels/propulsion",
+    "license": "MIT",
+    "keywords": [
+        "propulsion",
+        "codex",
+        "codex-plugin",
+        "opencode",
+        "opencode-plugin",
+        "agentic-coding",
+        "skills",
+        "workflow",
+        "planning",
+        "tdd",
+        "debugging",
+        "review",
+        "guardrails",
+        "developer-tools"
+    ],
+    "skills": "./skills/",
+    "hooks": "./hooks/hooks.json",
+    "interface": {
+        "displayName": "Propulsion",
+        "shortDescription": "Workflow routing and skills for agentic coding.",
+        "longDescription": "Propulsion adds a compact workflow skill set and high-priority startup routing guidance while preserving Codex tools and permissions.",
+        "developerName": "Moon Pixels",
+        "category": "Coding",
+        "capabilities": ["Interactive", "Read", "Write"],
+        "websiteURL": "https://github.com/moonpixels/propulsion",
+        "defaultPrompt": [
+            "Turn my idea into an implementation-ready plan with Propulsion",
+            "Debug and fix this bug with Propulsion guardrails",
+            "Review these changes with the Propulsion review workflow"
+        ],
+        "brandColor": "#FF4F00",
+        "composerIcon": "./assets/propulsion_icon_square.png",
+        "logo": "./assets/banner.png",
+        "screenshots": []
+    }
+}

.oxfmtrc.json

@@ -2,19 +2,17 @@
     "$schema": "./node_modules/oxfmt/configuration_schema.json",
     "ignorePatterns": ["node_modules/**", ".opencode/node_modules/**"],
     "printWidth": 80,
+    "tabWidth": 4,
     "singleQuote": true,
     "sortImports": {
         "groups": [
-            "builtin",
-            "external",
-            "internal",
-            "parent",
-            "sibling",
-            "index"
+            ["builtin", "external"],
+            ["internal", "subpath"],
+            ["parent", "sibling", "index"],
+            "unknown"
         ]
     },
     "sortPackageJson": {
         "sortScripts": true
-    },
-    "tabWidth": 4
+    }
 }

AGENTS.md

@@ -1,2 +1,2 @@
-- When the user corrects your approach with a reusable, global rule for future work, ask whether they want it added to `AGENTS.md`; if they do, load the `agentic-config` skill and update `AGENTS.md`.
+- When the user corrects you with a reusable, global rule, ask if they want it added to `AGENTS.md`.
 - After implementing changes run `bun run checks` before handoff.