diff --git a/README.md b/README.md
index d8f2c5f..f218025 100644
--- a/README.md
+++ b/README.md
@@ -150,6 +150,28 @@ claude plugin marketplace add JuliusBrussee/caveman
 claude plugin install caveman@caveman
 ```
 
+Codex:
+
+1. Clone repo
+2. Open Codex in repo
+3. Run `/plugins`
+4. Search `Caveman`
+5. Install plugin
+
+### Windows (VS Code Codex)
+
+If you are using the VS Code Codex extension on Windows:
+
+1. Clone this repo locally
+2. Open the cloned repo in VS Code
+3. Open Codex Settings → Plugins
+4. Look under the repo/local marketplace for `Caveman`
+5. Click `Install`
+6. Run `Developer: Reload Window`
+7. Verify `Caveman` appears under installed plugins
+
+This repo includes a repo-local marketplace entry at `.agents/plugins/marketplace.json`, so the plugin can be discovered directly from the cloned repository without adding personal machine-specific paths to the repo.
+
 Install once. Use in all sessions after that.
 
 One rock. That it.
diff --git a/plugins/caveman/.codex-plugin/plugin.json b/plugins/caveman/.codex-plugin/plugin.json
index e6b4f70..7822753 100644
--- a/plugins/caveman/.codex-plugin/plugin.json
+++ b/plugins/caveman/.codex-plugin/plugin.json
@@ -26,9 +26,14 @@
       "Write"
     ],
     "websiteURL": "https://github.com/JuliusBrussee/caveman",
+    "privacyPolicyURL": "https://github.com/JuliusBrussee/caveman/blob/main/README.md",
+    "termsOfServiceURL": "https://github.com/JuliusBrussee/caveman/blob/main/LICENSE",
     "defaultPrompt": [
       "Use caveman mode. Cut filler. Keep technical accuracy."
     ],
+    "composerIcon": "./assets/caveman-small.svg",
+    "logo": "./assets/caveman.svg",
+    "screenshots": [],
     "brandColor": "#6B7280"
   }
 }
diff --git a/plugins/caveman/assets/caveman-small.svg b/plugins/caveman/assets/caveman-small.svg
new file mode 100644
index 0000000..d85603e
--- /dev/null
+++ b/plugins/caveman/assets/caveman-small.svg
@@ -0,0 +1,7 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64" role="img" aria-label="Caveman">
+  <circle cx="32" cy="32" r="28" fill="#6B7280"/>
+  <path d="M18 40c4-10 24-10 28 0" fill="none" stroke="#F9FAFB" stroke-linecap="round" stroke-width="4"/>
+  <circle cx="24" cy="27" r="4" fill="#F9FAFB"/>
+  <circle cx="40" cy="27" r="4" fill="#F9FAFB"/>
+  <path d="M21 18c3-5 8-8 15-8 5 0 10 2 14 7" fill="none" stroke="#D1D5DB" stroke-linecap="round" stroke-width="4"/>
+</svg>
diff --git a/plugins/caveman/assets/caveman.svg b/plugins/caveman/assets/caveman.svg
new file mode 100644
index 0000000..c19d09b
--- /dev/null
+++ b/plugins/caveman/assets/caveman.svg
@@ -0,0 +1,7 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 128 128" role="img" aria-label="Caveman">
+  <rect width="128" height="128" rx="24" fill="#6B7280"/>
+  <path d="M28 79c8-22 48-22 56 0" fill="none" stroke="#F9FAFB" stroke-linecap="round" stroke-width="8"/>
+  <circle cx="48" cy="52" r="8" fill="#F9FAFB"/>
+  <circle cx="80" cy="52" r="8" fill="#F9FAFB"/>
+  <path d="M43 35c6-10 17-15 31-15 12 0 24 5 31 14" fill="none" stroke="#D1D5DB" stroke-linecap="round" stroke-width="8"/>
+</svg>
diff --git a/plugins/caveman/skills/caveman/agents/openai.yaml b/plugins/caveman/skills/caveman/agents/openai.yaml
new file mode 100644
index 0000000..b7cda02
--- /dev/null
+++ b/plugins/caveman/skills/caveman/agents/openai.yaml
@@ -0,0 +1,6 @@
+interface:
+  display_name: "Caveman"
+  short_description: "Talk like caveman. Cut filler. Keep technical accuracy."
+  icon_small: "./assets/caveman-small.svg"
+  icon_large: "./assets/caveman.svg"
+  default_prompt: "Use $caveman to answer briefly, cut filler, and preserve exact technical substance."
diff --git a/plugins/caveman/skills/caveman/assets/caveman-small.svg b/plugins/caveman/skills/caveman/assets/caveman-small.svg
new file mode 100644
index 0000000..d85603e
--- /dev/null
+++ b/plugins/caveman/skills/caveman/assets/caveman-small.svg
@@ -0,0 +1,7 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64" role="img" aria-label="Caveman">
+  <circle cx="32" cy="32" r="28" fill="#6B7280"/>
+  <path d="M18 40c4-10 24-10 28 0" fill="none" stroke="#F9FAFB" stroke-linecap="round" stroke-width="4"/>
+  <circle cx="24" cy="27" r="4" fill="#F9FAFB"/>
+  <circle cx="40" cy="27" r="4" fill="#F9FAFB"/>
+  <path d="M21 18c3-5 8-8 15-8 5 0 10 2 14 7" fill="none" stroke="#D1D5DB" stroke-linecap="round" stroke-width="4"/>
+</svg>
diff --git a/plugins/caveman/skills/caveman/assets/caveman.svg b/plugins/caveman/skills/caveman/assets/caveman.svg
new file mode 100644
index 0000000..c19d09b
--- /dev/null
+++ b/plugins/caveman/skills/caveman/assets/caveman.svg
@@ -0,0 +1,7 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 128 128" role="img" aria-label="Caveman">
+  <rect width="128" height="128" rx="24" fill="#6B7280"/>
+  <path d="M28 79c8-22 48-22 56 0" fill="none" stroke="#F9FAFB" stroke-linecap="round" stroke-width="8"/>
+  <circle cx="48" cy="52" r="8" fill="#F9FAFB"/>
+  <circle cx="80" cy="52" r="8" fill="#F9FAFB"/>
+  <path d="M43 35c6-10 17-15 31-15 12 0 24 5 31 14" fill="none" stroke="#D1D5DB" stroke-linecap="round" stroke-width="8"/>
+</svg>