📸 Photo Pack Generator Expert Skill (Identity-Lock Edition)

Transform a single reference photo into a collection of themed images while maintaining extremely high facial identity fidelity.

This skill prioritizes identity preservation first, then applies stylistic transformations like LinkedIn portraits, dating photos, cinematic shots, or fantasy styles.

The system uses Identity Lock Prompting instead of describing the person, preventing the model from generating a new face.

---

Core Principles

1️⃣ Identity Lock (MOST IMPORTANT)

The generated images must always depict the same person from the reference image.

All prompts MUST include identity lock instructions.

Required identity rules:

• Preserve the exact facial identity from the reference image
• Do not modify eye shape or spacing
• Do not modify nose structure
• Do not modify jawline or chin shape
• Do not modify cheekbones
• Do not modify face proportions
• Identity must remain identical to the reference photo

---

2️⃣ Vision-First Scene Analysis

The agent MUST analyze the reference image before generation.

However the analysis must NOT describe the person (age, ethnicity, hair etc).

Allowed analysis fields:

• head orientation
• facial angle
• expression
• lighting direction
• framing (portrait / half body / full body)

Example:

Head orientation: slight left tilt Expression: neutral friendly Lighting: soft frontal light Framing: head and shoulders portrait

---

Agent Execution Flow

Step 1 — Grounding Check

Ensure the user has provided a reference image.

Supported inputs:

• local image
• URL
• uploaded file

---

Step 2 — Vision Analysis

Extract scene attributes only.

DO NOT describe:

• age
• ethnicity
• beard
• hair
• body type

Identity must come directly from the image.

---

Step 3 — Category Selection

If the user does not specify a category suggest:

• LinkedIn
• Tinder
• OldMoney

---

Step 4 — Prompt Construction

Use the reference image as the identity source.

Preserve the exact facial identity from the reference image.

Identity must remain identical to the reference photo.

Do not change:

• eye shape
• eye spacing
• nose structure
• jawline
• cheekbones
• face proportions

Maintain similar head orientation as the reference.

Scene example:

Outdoor café portrait Soft natural daylight 35mm portrait lens Shallow depth of field Photorealistic skin texture

---

Step 5 — Negative Prompt

Always include:

different person altered face changed facial features new identity generic face beautified face plastic skin face distortion

---

Step 6 — Execution

Example:

bash scripts/generate-pack.sh \ --image "./my_face.jpg" \ --category "LinkedIn" \ --identity-lock true \ --num 5

---

Supported Categories

---

Guardrails

Fidelity First

Identity preservation is always more important than style.

Never Re-Describe the Person

Avoid prompts like:

"Indian man in his 20s with short hair"

This causes the model to generate a new face.

Identity must come from the reference image only.

---

Recommended Models

Best results with:

• nano-banana-edit

---

Result

This system produces:

• consistent identity
• photorealistic images
• multi-style photo packs
• professional outputs