Codex Image Gallery

Start a local browser gallery for Codex image outputs. This skill is self-contained: the server lives in scripts/server.mjs, and the UI template lives in assets/index.html.

Quick Start

Run commands from this skill directory, the directory containing this SKILL.md.

node scripts/server.mjs

The server prints the actual URL. It starts at http://127.0.0.1:8765/ and tries later ports if the default is occupied.

Workflow

1. Check the default URL first:

   node -e 'fetch("http://127.0.0.1:8765/api/images").then(r => r.json()).then(j => console.log(j.rootPath, j.items.length)).catch(() => process.exit(1))'
   

   If this succeeds, reuse the running server at http://127.0.0.1:8765/.

2. If the API check fails, check for a running server process:

   pgrep -fl 'node .*server\.mjs' || true
   

   When a process exists but the default URL fails, inspect its stdout or try likely later ports because the server auto-increments when a port is occupied.

3. Verify any reused URL before reporting success:

   node -e 'fetch("http://127.0.0.1:8765/api/images").then(r => r.json()).then(j => console.log(j.rootPath, j.items.length))'
   

   If the server chose another port, use that port.

4. Start the server if none is running:

   node scripts/server.mjs
   

   Keep the process running for the user and read stdout for the URL.

5. Open the browser unless the user asks for URL-only:

   open http://127.0.0.1:8765/
   

Image Root

Default image root:

~/.codex/generated_images

Use a different folder with:

GALLERY_ROOT=/path/to/images node scripts/server.mjs

Validation

Before declaring the skill healthy after edits, run:

node --check scripts/server.mjs

Then start the server and verify: