Hermes-ui/packages/skills/apikey-image-gen/SKILL.md

---
name: apikey-image-gen
description: "Generate or edit images through Hermes Web UI using the selected/requested profile's fun-codex provider from config.yaml."
version: 1.0.0
author: Ekko
license: MIT
platforms: [linux, macos, windows, termux]
metadata:
  hermes:
    tags: [api.apikey.fun, image-generation, image-editing, media]
prerequisites:
  commands: [curl]
---

# APIKEY Image Generation

Use this skill when the user wants to generate an image, generate an image from a reference image, or edit an existing image.

Always call Hermes Web UI's media endpoint. Do not call `api.apikey.fun` directly, and do not ask the user for an API key. The server reads the selected/requested profile's `config.yaml` and uses the `custom_providers` entry named `fun-codex`:

Do not use any built-in image generation tool as a fallback. If the Hermes Web UI endpoint returns `401`, `403`, connection failure, or any other error, stop and report the Hermes Web UI error to the user.

```yaml
custom_providers:
  - name: fun-codex
    base_url: https://api.apikey.fun/v1
    api_key: ...
    model: gpt-5.5
    api_mode: codex_responses
```

Endpoint:

```bash
POST <Hermes Web UI base URL>/api/hermes/media/apikey-image-generate
```

Resolve the Hermes Web UI base URL in this order:

1. `HERMES_WEB_UI_URL` environment variable, if set.
2. `http://127.0.0.1:${PORT}`, if `PORT` is set.
3. `http://127.0.0.1:8648` for local development.

When Hermes Web UI is running from Docker Compose, the default external URL is `http://127.0.0.1:6060`.

Authentication:

Send the Hermes Web UI server bearer token. This token is accepted only by Hermes Web UI media generation endpoints for agent skills; it is not a general Web UI login token.

Resolve the token in this order:

1. `AUTH_TOKEN` environment variable, if set.
2. `${HERMES_WEB_UI_HOME}/.token`, if `HERMES_WEB_UI_HOME` is set.
3. `${HERMES_WEBUI_STATE_DIR}/.token`, if `HERMES_WEBUI_STATE_DIR` is set.
4. `~/.hermes-web-ui/.token`.

Profile selection:

Use the current Hermes profile from the run instructions by sending `X-Hermes-Profile`.

If the run instructions include `[Current Hermes profile: <name>]`, include:

```bash
-H "X-Hermes-Profile: <name>"
```

Replace `<name>` with the exact profile name from the run instructions. Never send a placeholder value such as `<name>` or `<current-hermes-profile>`.

If no current profile is provided, omit the header and let the server fall back to the current Hermes active profile.

## Modes

### Text To Image

Use when there is no input image.

```json
{
  "mode": "text",
  "prompt": "A high quality product image of a matte black mechanical keyboard on a clean desk",
  "size": "1024x1024",
  "output_path": "/absolute/path/to/output.png"
}
```

The server calls `POST /v1/images/generations` against the `fun-codex` base URL.

### Image To Image

Use when the user provides a reference image and wants a new image based on it.

```json
{
  "mode": "image",
  "prompt": "Use this reference composition and generate a refined technology brand poster",
  "image_path": "/absolute/path/to/reference.png",
  "size": "1024x1024",
  "output_path": "/absolute/path/to/output.png"
}
```

The server calls `POST /v1/responses` against the `fun-codex` base URL.

### Image Edit

Use when the user wants to modify an existing image while preserving parts of it.

```json
{
  "mode": "edit",
  "prompt": "Change the background to blue and keep the subject unchanged",
  "image_path": "/absolute/path/to/source.png",
  "size": "1024x1024",
  "output_path": "/absolute/path/to/edited.png"
}
```

The server calls `POST /v1/images/edits` against the `fun-codex` base URL.

## Request Fields

- `mode`: `text`, `image`, or `edit`.
- `prompt`: required.
- `image_path`: local png, jpeg, or webp path. Required for `image` and `edit` unless using `image_url` or `image_base64`.
- `image_url`: optional alternative image input.
- `image_base64`: optional alternative image input. If it is not a data URI, include `mime_type`.
- `n`: number of images. Defaults to `1`.
- `size`: defaults to `1024x1024`. Common values: `1024x1024`, `1536x1024`, `1024x1536`, `2048x2048`, `3840x2160`, `2160x3840`, `auto`.
- `quality`: defaults to `auto`.
- `model`: optional override. Text/edit default to `gpt-image-2`; image mode defaults to the `fun-codex` model in `config.yaml`.
- `image_model`: optional image tool model for image mode. Defaults to `gpt-image-2`.
- `output_path`: optional absolute output file path. If omitted, the server saves to `${HERMES_WEB_UI_HOME:-~/.hermes-web-ui}/media/*.png`.
- `timeout_ms`: defaults to `600000`.

## Curl Template

```bash
TOKEN="${AUTH_TOKEN:-}"
if [ -z "$TOKEN" ] && [ -n "${HERMES_WEB_UI_HOME:-}" ] && [ -f "$HERMES_WEB_UI_HOME/.token" ]; then
  TOKEN="$(cat "$HERMES_WEB_UI_HOME/.token")"
fi
if [ -z "$TOKEN" ] && [ -n "${HERMES_WEBUI_STATE_DIR:-}" ] && [ -f "$HERMES_WEBUI_STATE_DIR/.token" ]; then
  TOKEN="$(cat "$HERMES_WEBUI_STATE_DIR/.token")"
fi
if [ -z "$TOKEN" ] && [ -f "$HOME/.hermes-web-ui/.token" ]; then
  TOKEN="$(cat "$HOME/.hermes-web-ui/.token")"
fi
if [ -z "$TOKEN" ]; then
  echo "Missing Hermes Web UI token. Check AUTH_TOKEN, HERMES_WEB_UI_HOME, HERMES_WEBUI_STATE_DIR, or ~/.hermes-web-ui/.token." >&2
  exit 1
fi

BASE_URL="${HERMES_WEB_UI_URL:-}"
if [ -z "$BASE_URL" ]; then
  BASE_URL="http://127.0.0.1:${PORT:-8648}"
fi
BASE_URL="${BASE_URL%/}"

curl -sS -X POST "$BASE_URL/api/hermes/media/apikey-image-generate" \
  -H "Authorization: Bearer $TOKEN" \
  -H 'Content-Type: application/json' \
  -d '{
    "mode": "text",
    "prompt": "A cinematic 4K photo of a silver robot hand holding a small glowing cube",
    "size": "3840x2160",
    "output_path": "/absolute/path/to/output.png"
  }'
```

Successful responses include:

```json
{
  "ok": true,
  "mode": "text",
  "output_paths": ["/absolute/path/to/output.png"],
  "provider": "fun-codex",
  "base_url": "https://api.apikey.fun/v1"
}
```

If the response code is `missing_fun_codex_provider`, tell the user to configure `fun-codex` in the selected/requested profile's `config.yaml`.