Morphogenesis Postcard

Morphogenesis Postcard

Create social-post-ready science art from a deterministic Gray-Scott reaction-diffusion simulation. The normal workflow must always write a prompt-specific Python visual rule file first, then pass that file to the renderer with --rule-code. The rule file is part of the artifact: it exposes the visual grammar used for the run.

Required Workflow

1. Create or use the requested output directory, usually skill_output_<timestamp>_morphogenesis-postcard.
2. Write agent_rules.py from the user's creative request. Keep the prompt intact when possible:

python3 skills/morphogenesis-postcard/scripts/write_visual_rules.py \
  --out skill_output_<timestamp>_morphogenesis-postcard/agent_rules.py \
  --profile-json skill_output_<timestamp>_morphogenesis-postcard/visual_rule_profile.json \
  --prompt "stress-wave interference in hierarchical materials with branching cracks and glowing defects" \
  --title "Stress-Wave Morphogenesis" \
  --subtitle "Prompt-written reaction-diffusion rules"

3. Render with that rule file. Do not omit --rule-code in a final skill run:

python3 skills/morphogenesis-postcard/scripts/make_morphogenesis_postcard.py \
  --out skill_output_<timestamp>_morphogenesis-postcard \
  --rule-code skill_output_<timestamp>_morphogenesis-postcard/agent_rules.py \
  --prompt "stress-wave interference in hierarchical materials with branching cracks and glowing defects" \
  --title "Stress-Wave Morphogenesis" \
  --subtitle "Prompt-written reaction-diffusion rules" \
  --auto-style \
  --format square \
  --steps 220

4. Verify artifacts exist before answering:

find skill_output_<timestamp>_morphogenesis-postcard -maxdepth 2 -type f -print

5. Final answer must list exact artifact paths, including agent_rules.py. Do not claim success unless find lists the files.

Parameters

Use these command-line options for write_visual_rules.py:

• --prompt: Natural-language visual brief. This is the main creative input.
• --title: Short headline rendered on the poster.
• --subtitle: Short caption rendered under the title.
• --out: Path to the required agent_rules.py visual-rule file.
• --profile-json: Optional JSON summary of derived prompt themes and style.

Use these command-line options for make_morphogenesis_postcard.py:

• --rule-code: Required for final outputs. Point to the generated agent_rules.py.
• --prompt: Same visual brief passed to write_visual_rules.py.
• --auto-style: Derives any unpinned style option from the prompt.
• --prompt-strength: 0-1 strength for prompt-derived simulation/tone perturbations. Default is 0.78.
• --title: Short headline rendered on the poster.
• --subtitle: Short caption rendered under the title.
• --seed: String or number for deterministic variation.
• --preset: One of labyrinth, spots, coral, veins, membranes.
• --palette: One of magma-cyan, biofilm, noir-neon, ice, graphite-fire.
• --composition: One of poster, full-bleed, specimen, triptych, field-guide.
• --motif: One of hybrid, flow, rings, fibers, fracture, constellation, none.
• --symmetry: One of none, mirror-x, mirror-y, dihedral.
• --title-mode: One of panel, caption, none.
• --energy: 0-1 field intensity and motif force.
• --contrast: Field contrast multiplier. Use 0.7-1.8.
• --grain: 0-1 deterministic print grain.
• --ink-density: 0-1 density of lines, rings, fibers, and nodes.
• --accent-count: Number of accent motifs/nodes. Use 4-24 for most posts.
• --format: square or portrait.
• --steps: Use 180-280 for normal runs, 80-120 for fast previews.
• --size: Optional PNG width in pixels. Default is 1080; use 720 for fast tests.
• --field-size: Optional internal simulation grid. Default is 152; use 124 for fast tests.

The generated visual rule file defines configure, seed_rule, tone_rule, color_rule, motif_paths, and postprocess. It recognizes scientific and aesthetic language including stress, fracture, waves, interference, phase, morphogenesis, cells, membranes, fibers, hierarchy, graphs, bridges, nodes, crystals, lattices, thermal energy, plasma, and quiet/specimen-style prompts. The prompt hash changes the deterministic rule seed, so different prompts produce different code and images.

If the user asks to pin a specific style option, pass that explicit flag too; prompt mode fills unpinned options and respects explicit --preset, --palette, --composition, --motif, --symmetry, --title-mode, --seed, --energy, --contrast, --grain, --ink-density, and --accent-count.

Optional Manual Rule Editing

If the user explicitly asks for hand-authored rules, write or edit agent_rules.py yourself. Keep the same API:

cat > skill_output_<timestamp>_morphogenesis-postcard/agent_rules.py <<'PY'
import math

def configure(args):
    return {
        "composition": "full-bleed",
        "motif": "none",
        "title_mode": "none",
        "energy": 0.92,
        "contrast": 1.35,
        "grain": 0.14,
    }

def tone_rule(fx, fy, x, y, activator, depletion, edge, ridge, tone, context):
    n = context["n"]
    wave = math.sin(fx * 0.21 + math.sin(fy * 0.08) * 2.5)
    cellular = math.sin((fx - n * 0.5) * 0.12) * math.sin((fy - n * 0.5) * 0.12)
    return max(0.0, min(1.0, tone * 0.72 + abs(wave) * 0.18 + abs(cellular) * 0.16 + edge * 0.18))

def motif_paths(context):
    return [
        {"type": "circle", "x": 0.50, "y": 0.50, "radius": 0.42, "ring": True, "color": "accent", "alpha": 0.18, "thickness": 2},
        {"type": "polyline", "points": [(0.08, 0.18), (0.25, 0.34), (0.52, 0.30), (0.80, 0.64), (0.94, 0.82)], "color": "muted", "alpha": 0.22, "thickness": 2},
    ]
PY

Then run:

python3 skills/morphogenesis-postcard/scripts/make_morphogenesis_postcard.py \
  --out skill_output_<timestamp>_morphogenesis-postcard \
  --rule-code skill_output_<timestamp>_morphogenesis-postcard/agent_rules.py \
  --title "Agent-Written Morphogenesis" \
  --subtitle "Custom tone rules and motifs" \
  --seed custom-01 \
  --preset coral \
  --palette noir-neon \
  --format square \
  --steps 180

Supported functions in agent_rules.py:

• configure(args) -> dict | None: Override command-line options before rendering.
• seed_rule(u, v, n, args) -> (u, v) | None: Modify initial fields in place or return new fields.
• tone_rule(fx, fy, x, y, activator, depletion, edge, ridge, tone, context) -> float | None: Override per-pixel tone.
• color_rule(r, g, b, tone, x, y, fx, fy, context) -> (r, g, b) | None: Override per-pixel RGB.
• motif_paths(context) -> list[dict]: Add line/polyline/circle/frame motifs using relative coordinates.
• postprocess(image, width, height, args, palette, helpers) -> bytearray | None: Draw directly on the RGB bytearray using helper functions.

Keep custom code short and deterministic. Import only Python standard-library modules. If a rule file fails, fix it and rerun the renderer; do not claim success.

Defaults

If the user does not specify parameters, use:

title=Morphogenesis From Local Rules
subtitle=Prompt-shaped reaction-diffusion field
prompt=<copy the user's visual/art/science request>
auto-style=true
rule-code=skill_output_<timestamp>_morphogenesis-postcard/agent_rules.py
prompt-strength=0.78
seed=42
preset/palette/composition/motif/symmetry/title-mode/energy/contrast/grain/ink-density/accent-count=derived from prompt
format=square
steps=220

Recipes

Prompt-Driven Materials Interface

python3 skills/morphogenesis-postcard/scripts/write_visual_rules.py \
  --out skill_output_<timestamp>_morphogenesis-postcard/agent_rules.py \
  --profile-json skill_output_<timestamp>_morphogenesis-postcard/visual_rule_profile.json \
  --prompt "stress-wave interference in a growing hierarchical material interface with branching cracks, glowing defects, and nonlinear energy flow" \
  --title "Stress Waves in a Growing Interface" \
  --subtitle "Prompt-written reaction-diffusion rules"

python3 skills/morphogenesis-postcard/scripts/make_morphogenesis_postcard.py \
  --out skill_output_<timestamp>_morphogenesis-postcard \
  --rule-code skill_output_<timestamp>_morphogenesis-postcard/agent_rules.py \
  --prompt "stress-wave interference in a growing hierarchical material interface with branching cracks, glowing defects, and nonlinear energy flow" \
  --title "Stress Waves in a Growing Interface" \
  --subtitle "Prompt-written reaction-diffusion rules" \
  --auto-style \
  --format square \
  --steps 220

Prompt-Driven Museum Specimen

python3 skills/morphogenesis-postcard/scripts/write_visual_rules.py \
  --out skill_output_<timestamp>_morphogenesis-postcard/agent_rules.py \
  --profile-json skill_output_<timestamp>_morphogenesis-postcard/visual_rule_profile.json \
  --prompt "quiet museum specimen of cellular morphogenesis in ice-blue symmetry, like an archived biological crystal" \
  --title "Specimen of Emergent Order" \
  --subtitle "Cellular fields constrained into symmetry"

python3 skills/morphogenesis-postcard/scripts/make_morphogenesis_postcard.py \
  --out skill_output_<timestamp>_morphogenesis-postcard \
  --rule-code skill_output_<timestamp>_morphogenesis-postcard/agent_rules.py \
  --prompt "quiet museum specimen of cellular morphogenesis in ice-blue symmetry, like an archived biological crystal" \
  --title "Specimen of Emergent Order" \
  --subtitle "Cellular fields constrained into symmetry" \
  --auto-style \
  --format square \
  --steps 200

Prompt-Driven Research Graph Artwork

python3 skills/morphogenesis-postcard/scripts/write_visual_rules.py \
  --out skill_output_<timestamp>_morphogenesis-postcard/agent_rules.py \
  --profile-json skill_output_<timestamp>_morphogenesis-postcard/visual_rule_profile.json \
  --prompt "luminous graph of research ideas bridging distant modules, with nodes, links, hidden paths, and morphogenesis-like diffusion" \
  --title "Bridge Field" \
  --subtitle "A graph of ideas becomes a reaction field"

python3 skills/morphogenesis-postcard/scripts/make_morphogenesis_postcard.py \
  --out skill_output_<timestamp>_morphogenesis-postcard \
  --rule-code skill_output_<timestamp>_morphogenesis-postcard/agent_rules.py \
  --prompt "luminous graph of research ideas bridging distant modules, with nodes, links, hidden paths, and morphogenesis-like diffusion" \
  --title "Bridge Field" \
  --subtitle "A graph of ideas becomes a reaction field" \
  --auto-style \
  --format square \
  --steps 240

Prompt-Driven Scientific Triptych

python3 skills/morphogenesis-postcard/scripts/write_visual_rules.py \
  --out skill_output_<timestamp>_morphogenesis-postcard/agent_rules.py \
  --profile-json skill_output_<timestamp>_morphogenesis-postcard/visual_rule_profile.json \
  --prompt "three-panel scientific triptych of branching biofilm fibers, cellular growth fronts, and nonlinear wave coupling" \
  --title "Three Views of a Reaction Field" \
  --subtitle "One seed, shifted sampling windows"

python3 skills/morphogenesis-postcard/scripts/make_morphogenesis_postcard.py \
  --out skill_output_<timestamp>_morphogenesis-postcard \
  --rule-code skill_output_<timestamp>_morphogenesis-postcard/agent_rules.py \
  --prompt "three-panel scientific triptych of branching biofilm fibers, cellular growth fronts, and nonlinear wave coupling" \
  --title "Three Views of a Reaction Field" \
  --subtitle "One seed, shifted sampling windows" \
  --auto-style \
  --composition triptych \
  --format portrait \
  --steps 220

Outputs

The script writes:

• <title>_<preset>_<palette>_<seed>.png: social-post PNG.
• parameters.json: exact reproduction parameters.
• caption.txt: short social caption.
• README.md: plain-language explanation.
• agent_rules.py: required prompt-written visual rule code.
• visual_rule_profile.json: prompt theme/style profile, when written by write_visual_rules.py.

Do not use run_js. This skill is for the shell/container environment used by mistralrs_skill_cli.py.