Update README.md

README.md

@@ -20,7 +20,7 @@ A minimal **dynamic prompting + mirrored wildcards** node for ComfyUI.
 - Inputs: `text`, `negative`, `seed`, `wildcard_dir`, `auto_neg_from_mir`
 - Outputs: expanded `text`, expanded `negative`
 
-## Usage
+## Node Inputs
 - positive: positive prompt
 - negative: negative prompt
 - Seed: this is used to determine how the node will select tags
@@ -29,23 +29,90 @@ A minimal **dynamic prompting + mirrored wildcards** node for ComfyUI.
 Wire the outputs into your usual `CLIP Text Encode` node <br>
 You can preview what the output is with the "preview any" node in utils
 
-## Examples
-Wildcards:
+## ✨ Features
+
+- **Nested choices** with `{option1|option2|{nested1|nested2}}`
+- **Wildcard expansion** with `__name__` → expands from `wildcards/name.txt`
+- **Line-separated wildcard files** that may themselves contain braces and wildcards
+- **Mirrored wildcards** with `__name-mir__`:
+  - Positive prompt gets the **chosen option**
+  - Negative prompt gets **all the other options, comma-separated**
+  - Strict resolution: `__name-mir__` reads **only** `wildcards/name-mir.txt` (no fallback to `name.txt`)
+- **Deterministic behavior** using the current generation seed
+- Works for both **positive** and **negative** prompts
+- Expanded prompts are saved into PNG metadata
+
+  ## 📑 Wildcard Files
+
+- Located in the `wildcards/` directory (configurable).
+- Each line is one possible expansion.
+- Lines may contain further braces `{}` and wildcard calls.
+
+**Example: `wildcards/hats.txt`**
+```
+{red hat|blue hat|{green hat|yellow hat|{black hat|gold hat}}}
+beret
+top hat
+```
+
+## 🔄 Mirrored Wildcards
+
+- File name: `name-mir.txt` (called via `__name-mir__`).
+- Ensures complementary picks between positive/negative prompts.
+
+**Example: `wildcards/hats-mir.txt`**
 ```
-wildcards/hats.txt
 {red hat|blue hat|green hat}
+{tall hat|short hat|medium hat}
+```
+
+- Positive prompt: `portrait, __hats-mir__`
+- Negative prompt: `lowres, __hats-mir__`
+  - If pos → `red hat`, neg → `blue hat, green hat`
+  - If pos → `short hat`, neg → `tall hat, medium hat`
+
+This ensures that the **negative prompt excludes the token chosen in the positive prompt.**
+
+### 🧩 Nested `-mir` behavior (auto-discovery)
+
+Mirrored tokens can be **nested inside other wildcards**. If a wildcard you use in the **positive** prompt expands to another token like `__foo-mir__`, the extension can **automatically inject the mirrored complement** into the **negative** prompt (so you don’t have to add `__foo-mir__` manually).
+
+- This requires the checkbox in the UI:  
+  **“Automatically mirror -mir wildcards without explicitly adding them to the negative prompt.”** (enabled by default)
+- The auto-inject only happens if the negative prompt does **not** already contain that `__*-mir__` token.
+- Resolution is strict: `__foo-mir__` reads `wildcards/foo-mir.txt` only.
+
+**Example (nested):**
+```
+wildcards/outfits.txt
+---------------------
+__hats-mir__, {casual|formal}
 
 wildcards/hats-mir.txt
+----------------------
 {red hat|blue hat|green hat}
 ```
 
-Prompt:
-```
-a portrait wearing __hats-mir__, background {studio|outdoor|cyberpunk}
-```
+Usage:
+- Positive: `portrait, __outfits__`
+- Negative: *(leave blank or put your usual negatives)*
 
-- Positive becomes a single chosen hat (by seed).
-- Negative becomes the **other** hats, comma-separated.
+Behavior:
+- The positive prompt expands `__outfits__` → which contains `__hats-mir__`.
+- With the checkbox enabled, the extension auto-injects `__hats-mir__` into the **negative** and expands it there as the comma‑separated “other” options.
+- If the seed picks **`red hat`** for positive, the negative gets **`blue hat, green hat`** automatically.
+
+## ⚙️ Usage
+
+- Write prompts as usual with `{}` and `__wildcards__`.
+- Wildcards are recursively expanded.
+- Mirrored wildcards respect complement logic.
+
+**Prompt Example:**
+```
+Positive: portrait, {cinematic|studio|outdoor}, __hats__, soft lighting
+Negative: lowres, bad anatomy, __hats-mir__
+```
 
 ## Notes
 - Missing wildcard files resolve to empty strings.