Fix brand assets for marketplace loading

Author: kylecarbs

.agents/plugins/marketplace.json

@@ -12,11 +12,11 @@ Skills for Claude Code, Codex, Cursor, and other coding agents to install, confi
 npx skills add coder/skills --global
 ```
 
-**Claude Code**:
+**Claude Code / Codex**:
 
 ```sh
 /plugin marketplace add coder/skills
-/plugin install coder@coder-skills
+/plugin install coder-skills@coder-skills
 /reload-plugins
 ```
 

README.md

@@ -64,6 +64,7 @@ if [ -n "$JSON_FILES" ]; then
   JSON_OK=1
   while IFS= read -r f; do
     [ -n "$f" ] || continue
+    [ -f "$f" ] || continue
     if ! jq -e . "$f" >/dev/null 2>&1; then
       echo "invalid JSON: $f" >&2
       JSON_OK=0

scripts/lint.sh

@@ -1,7 +1,7 @@
 interface:
   display_name: "Setup Coder"
   short_description: "Install and set up a Coder deployment"
-  icon_small: "../../assets/icon.png"
-  icon_large: "../../assets/logo.png"
+  icon_small: "assets/icon.png"
+  icon_large: "assets/logo.png"
   brand_color: "#000000"
-  default_prompt: "Install Coder, create the first admin, push a starter template, and build the first workspace."
+  default_prompt: "Use $setup to install Coder, create the first admin, and build the first workspace."