scripts/build_visual_assets.py

#!/usr/bin/env python3
"""Build small SVG visualizations for the Hugging Face analysis repo.

The renderer intentionally avoids third-party plotting dependencies so the
figures can be regenerated on a fresh Mac with only the standard library.
"""

from __future__ import annotations

import html
import json
from pathlib import Path


ROOT = Path(__file__).resolve().parents[1]
OUT = ROOT / "visuals"

BG = "#ffffff"
INK = "#1f2937"
MUTED = "#6b7280"
GRID = "#e5e7eb"
BLUE = "#2563eb"
TEAL = "#0891b2"
GREEN = "#059669"
ORANGE = "#d97706"
RED = "#dc2626"
PURPLE = "#7c3aed"
SLATE = "#475569"


def esc(value: object) -> str:
    return html.escape(str(value), quote=True)


def write_svg(path: Path, width: int, height: int, body: str) -> None:
    path.parent.mkdir(parents=True, exist_ok=True)
    path.write_text(
        f"""<svg xmlns="http://www.w3.org/2000/svg" width="{width}" height="{height}" viewBox="0 0 {width} {height}" role="img">
  <rect width="100%" height="100%" fill="{BG}"/>
  <style>
    .title {{ font: 700 22px -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; fill: {INK}; }}
    .subtitle {{ font: 400 13px -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; fill: {MUTED}; }}
    .label {{ font: 600 12px -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; fill: {INK}; }}
    .small {{ font: 400 11px -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; fill: {MUTED}; }}
    .axis {{ stroke: {GRID}; stroke-width: 1; }}
    .tick {{ font: 400 10px -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; fill: {MUTED}; }}
    .value {{ font: 700 11px -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; fill: {INK}; }}
    .node-title {{ font: 700 13px -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; fill: {INK}; }}
    .node-text {{ font: 400 11px -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; fill: {MUTED}; }}
  </style>
  {body}
</svg>
""",
        encoding="utf-8",
    )


def load_json(rel: str) -> dict:
    return json.loads((ROOT / rel).read_text(encoding="utf-8"))


def header(title: str, subtitle: str) -> str:
    return (
        f'<text x="32" y="38" class="title">{esc(title)}</text>'
        f'<text x="32" y="60" class="subtitle">{esc(subtitle)}</text>'
    )


def line_chart_path(points: list[tuple[float, float]]) -> str:
    if not points:
        return ""
    start = f"M {points[0][0]:.1f} {points[0][1]:.1f}"
    rest = " ".join(f"L {x:.1f} {y:.1f}" for x, y in points[1:])
    return f"{start} {rest}"


def render_pipeline() -> None:
    width, height = 1240, 560
    nodes = [
        ("Base model", "LiquidAI LFM2.5-8B-A1B", "BF16 MLX source", 34, 96, BLUE),
        ("Mixed core", "Quantize MoE experts to int8", "Routers/non-experts stay BF16", 274, 96, TEAL),
        ("Grouped training", "3 epochs, 1,746 steps", "overlapping groups g4/s3 at 10K cap", 514, 96, GREEN),
        ("Direct checkpoint", "step_01746_final", "experts + routers changed", 754, 96, ORANGE),
        ("Repair adapters", "Iter01 to Iter10 LoRA", "structured tool-call targets", 994, 96, PURPLE),
        ("Parser-disabled evals", "MLX fixed-Hermes 43/43", "0 text-tool leaks", 274, 328, GREEN),
        ("Export path", "Fuse + dequantize", "HF/safetensors source for GGUF", 514, 328, BLUE),
        ("XL GGUF quants", "Q4/Q5/Q6/Q8 KXL", "all pass 43-case llama.cpp eval", 754, 328, TEAL),
    ]
    body = header(
        "End-to-end local Mac fine-tuning pipeline",
        "Mixed int8-expert training creates the base behavioral change; LoRA repairs tool-call formatting and routing; GGUF export validates llama.cpp.",
    )
    body += '<defs><marker id="arrow" markerWidth="10" markerHeight="10" refX="9" refY="3" orient="auto"><path d="M0,0 L0,6 L9,3 z" fill="#94a3b8"/></marker></defs>'

    arrows = [
        (214, 172, 270, 172),
        (454, 172, 510, 172),
        (694, 172, 750, 172),
        (934, 172, 990, 172),
        (1084, 254, 420, 324),
        (454, 404, 510, 404),
        (694, 404, 750, 404),
    ]
    for x1, y1, x2, y2 in arrows:
        body += f'<line x1="{x1}" y1="{y1}" x2="{x2}" y2="{y2}" stroke="#94a3b8" stroke-width="2" marker-end="url(#arrow)"/>'

    for title, l1, l2, x, y, color in nodes:
        body += f'<rect x="{x}" y="{y}" width="210" height="152" rx="8" fill="#f8fafc" stroke="{color}" stroke-width="2"/>'
        body += f'<circle cx="{x+22}" cy="{y+25}" r="7" fill="{color}"/>'
        body += f'<text x="{x+40}" y="{y+31}" class="node-title">{esc(title)}</text>'
        body += f'<text x="{x+18}" y="{y+72}" class="node-text">{esc(l1)}</text>'
        body += f'<text x="{x+18}" y="{y+96}" class="node-text">{esc(l2)}</text>'
    write_svg(OUT / "pipeline_overview.svg", width, height, body)


def render_group_sweep() -> None:
    data = load_json("reports/group_sweep_10k.json")
    rows = [r for r in data["results"] if r.get("ok")]
    width, height = 980, 520
    left, top, chart_w, chart_h = 72, 100, 820, 300
    max_mem = max(r["peak_memory_gb"] for r in rows) * 1.08
    max_time = max(r["elapsed_s"] for r in rows) * 1.08
    x_step = chart_w / len(rows)
    bar_w = 54
    body = header(
        "Group size sweep at 10K tokens",
        "Larger simultaneous layer groups improve elapsed time, but group size 11 brushes the hard 60 GB limit.",
    )
    for i in range(0, 5):
        y = top + chart_h - i * chart_h / 4
        body += f'<line x1="{left}" y1="{y:.1f}" x2="{left+chart_w}" y2="{y:.1f}" class="axis"/>'
        body += f'<text x="{left-10}" y="{y+4:.1f}" text-anchor="end" class="tick">{max_mem*i/4:.0f} GB</text>'
    body += f'<line x1="{left}" y1="{top}" x2="{left}" y2="{top+chart_h}" stroke="{GRID}"/>'
    body += f'<line x1="{left+chart_w}" y1="{top}" x2="{left+chart_w}" y2="{top+chart_h}" stroke="{GRID}"/>'

    time_points = []
    for idx, row in enumerate(rows):
        cx = left + x_step * idx + x_step / 2
        mem_h = chart_h * row["peak_memory_gb"] / max_mem
        x = cx - bar_w / 2
        y = top + chart_h - mem_h
        fill = GREEN if row["group_size"] == data["recommended_group_size"] else BLUE
        body += f'<rect x="{x:.1f}" y="{y:.1f}" width="{bar_w}" height="{mem_h:.1f}" rx="4" fill="{fill}" opacity="0.86"/>'
        body += f'<text x="{cx:.1f}" y="{y-8:.1f}" text-anchor="middle" class="value">{row["peak_memory_gb"]:.1f}</text>'
        body += f'<text x="{cx:.1f}" y="{top+chart_h+28}" text-anchor="middle" class="label">g{row["group_size"]}</text>'
        ty = top + chart_h - chart_h * row["elapsed_s"] / max_time
        time_points.append((cx, ty))
    body += f'<path d="{line_chart_path(time_points)}" fill="none" stroke="{ORANGE}" stroke-width="3"/>'
    for (cx, ty), row in zip(time_points, rows):
        body += f'<circle cx="{cx:.1f}" cy="{ty:.1f}" r="5" fill="{ORANGE}"/>'
        body += f'<text x="{cx:.1f}" y="{ty-12:.1f}" text-anchor="middle" class="small">{row["elapsed_s"]:.0f}s</text>'

    body += f'<line x1="{left}" y1="{top+chart_h*(1-55/max_mem):.1f}" x2="{left+chart_w}" y2="{top+chart_h*(1-55/max_mem):.1f}" stroke="{GREEN}" stroke-dasharray="6 5" stroke-width="2"/>'
    body += f'<line x1="{left}" y1="{top+chart_h*(1-60/max_mem):.1f}" x2="{left+chart_w}" y2="{top+chart_h*(1-60/max_mem):.1f}" stroke="{RED}" stroke-dasharray="6 5" stroke-width="2"/>'
    body += f'<text x="{left+chart_w+12}" y="{top+chart_h*(1-55/max_mem)+4:.1f}" class="small">55 GB target</text>'
    body += f'<text x="{left+chart_w+12}" y="{top+chart_h*(1-60/max_mem)+4:.1f}" class="small">60 GB hard stop</text>'
    body += f'<rect x="{left}" y="{height-58}" width="14" height="14" fill="{BLUE}" opacity="0.86"/><text x="{left+22}" y="{height-46}" class="small">Peak memory, GB</text>'
    body += f'<circle cx="{left+180}" cy="{height-51}" r="5" fill="{ORANGE}"/><text x="{left+192}" y="{height-46}" class="small">Elapsed seconds</text>'
    body += f'<rect x="{left+332}" y="{height-58}" width="14" height="14" fill="{GREEN}" opacity="0.86"/><text x="{left+354}" y="{height-46}" class="small">Selected default group size</text>'
    write_svg(OUT / "group_sweep_memory_time.svg", width, height, body)


def render_dataset_filtering() -> None:
    data = load_json("datasets/hermes_filtered_text_10k_manifest.json")["splits"]
    width, height = 880, 460
    left, top, chart_w, chart_h = 86, 100, 680, 260
    labels = list(data.keys())
    max_total = max(v["kept"] + v["dropped_from_16k_artifact"] for v in data.values())
    body = header(
        "10K token-cap dataset retained the shorter Hermes traces",
        "The cap is per training example, not a total-token cap; longer rows were excluded from the 16K artifact.",
    )
    for i in range(5):
        y = top + chart_h - i * chart_h / 4
        body += f'<line x1="{left}" y1="{y:.1f}" x2="{left+chart_w}" y2="{y:.1f}" class="axis"/>'
        body += f'<text x="{left-12}" y="{y+4:.1f}" text-anchor="end" class="tick">{max_total*i/4:.0f}</text>'
    slot = chart_w / len(labels)
    bar_w = 86
    for idx, label in enumerate(labels):
        kept = data[label]["kept"]
        dropped = data[label]["dropped_from_16k_artifact"]
        total = kept + dropped
        x = left + idx * slot + slot / 2 - bar_w / 2
        kept_h = chart_h * kept / max_total
        drop_h = chart_h * dropped / max_total
        y_kept = top + chart_h - kept_h
        y_drop = y_kept - drop_h
        body += f'<rect x="{x:.1f}" y="{y_drop:.1f}" width="{bar_w}" height="{drop_h:.1f}" fill="{ORANGE}" opacity="0.72"/>'
        body += f'<rect x="{x:.1f}" y="{y_kept:.1f}" width="{bar_w}" height="{kept_h:.1f}" fill="{GREEN}" opacity="0.88"/>'
        body += f'<text x="{x+bar_w/2:.1f}" y="{y_kept+18:.1f}" text-anchor="middle" class="value" fill="#fff">{kept}</text>'
        body += f'<text x="{x+bar_w/2:.1f}" y="{y_drop-8:.1f}" text-anchor="middle" class="small">total {total}</text>'
        body += f'<text x="{x+bar_w/2:.1f}" y="{top+chart_h+28}" text-anchor="middle" class="label">{esc(label)}</text>'
    body += f'<rect x="{left}" y="{height-54}" width="14" height="14" fill="{GREEN}" opacity="0.88"/><text x="{left+22}" y="{height-42}" class="small">Kept at 10K cap</text>'
    body += f'<rect x="{left+172}" y="{height-54}" width="14" height="14" fill="{ORANGE}" opacity="0.72"/><text x="{left+194}" y="{height-42}" class="small">Dropped from 16K artifact</text>'
    write_svg(OUT / "dataset_filtering_10k.svg", width, height, body)


def render_eval_progression() -> None:
    colloquial = load_json("reports/colloquial_tool_router_repair_report.json")["eval_summaries"]
    iter04 = colloquial["iter04_masked_colloquial_openai_parser_disabled"]
    stages = [
        ("Direct\ncheckpoint", 5, 6, 2, 3),
        ("Iter01\nLoRA", 6, 6, 3, 3),
        ("Iter04\ncolloquial", iter04["passed"], iter04["total"], iter04["structured_tool_cases_passed"], iter04["tool_cases"]),
        ("Iter10\nfixed Hermes", 43, 43, 28, 28),
        ("GGUF XL\nquants", 43, 43, 28, 28),
    ]
    width, height = 1020, 520
    left, top, chart_w, chart_h = 78, 102, 820, 292
    body = header(
        "Tool-call reliability improved in stages",
        "The broad colloquial loop exposed routing failures; structured fixed-Hermes data closed the release suite.",
    )
    for i in range(6):
        y = top + chart_h - i * chart_h / 5
        body += f'<line x1="{left}" y1="{y:.1f}" x2="{left+chart_w}" y2="{y:.1f}" class="axis"/>'
        body += f'<text x="{left-12}" y="{y+4:.1f}" text-anchor="end" class="tick">{i*20}%</text>'
    slot = chart_w / len(stages)
    for idx, (label, passed, total, tool_passed, tool_total) in enumerate(stages):
        cx = left + idx * slot + slot / 2
        overall = passed / total
        structured = tool_passed / tool_total
        for j, (rate, color, val) in enumerate([(overall, BLUE, f"{passed}/{total}"), (structured, GREEN, f"{tool_passed}/{tool_total}")]):
            bw = 44
            x = cx - 50 + j * 56
            h = chart_h * rate
            y = top + chart_h - h
            body += f'<rect x="{x:.1f}" y="{y:.1f}" width="{bw}" height="{h:.1f}" rx="4" fill="{color}" opacity="0.88"/>'
            body += f'<text x="{x+bw/2:.1f}" y="{y-8:.1f}" text-anchor="middle" class="value">{val}</text>'
        y0 = top + chart_h + 26
        for line in label.split("\n"):
            body += f'<text x="{cx:.1f}" y="{y0:.1f}" text-anchor="middle" class="small">{esc(line)}</text>'
            y0 += 15
    body += f'<rect x="{left}" y="{height-54}" width="14" height="14" fill="{BLUE}" opacity="0.88"/><text x="{left+22}" y="{height-42}" class="small">Overall pass rate</text>'
    body += f'<rect x="{left+178}" y="{height-54}" width="14" height="14" fill="{GREEN}" opacity="0.88"/><text x="{left+200}" y="{height-42}" class="small">Structured tool-call pass rate</text>'
    write_svg(OUT / "eval_progression.svg", width, height, body)


def render_quant_size() -> None:
    data = load_json("release_summary.json")
    rows = []
    for name, item in data["gguf_quants"].items():
        if "Q4" in name:
            label = "Q4KXL"
        elif "Q5" in name:
            label = "Q5KXL"
        elif "Q6" in name:
            label = "Q6KXL"
        else:
            label = "Q8KXL"
        rows.append((label, item["bytes"] / 1024**3))
    rows.sort(key=lambda x: x[1])
    width, height = 900, 460
    left, top, chart_w, chart_h = 90, 96, 680, 260
    max_size = max(v for _, v in rows) * 1.16
    body = header(
        "GGUF Hermes-tuned KXL size/quality tradeoff",
        "All four stock llama.cpp KXL quants passed the same 43-case fixed-Hermes suite at 64K context.",
    )
    for i in range(5):
        y = top + chart_h - i * chart_h / 4
        body += f'<line x1="{left}" y1="{y:.1f}" x2="{left+chart_w}" y2="{y:.1f}" class="axis"/>'
        body += f'<text x="{left-12}" y="{y+4:.1f}" text-anchor="end" class="tick">{max_size*i/4:.1f} GiB</text>'
    slot = chart_w / len(rows)
    for idx, (label, gib) in enumerate(rows):
        cx = left + idx * slot + slot / 2
        h = chart_h * gib / max_size
        x = cx - 48
        y = top + chart_h - h
        color = [GREEN, TEAL, BLUE, PURPLE][idx]
        body += f'<rect x="{x:.1f}" y="{y:.1f}" width="96" height="{h:.1f}" rx="4" fill="{color}" opacity="0.88"/>'
        body += f'<text x="{cx:.1f}" y="{y-10:.1f}" text-anchor="middle" class="value">{gib:.1f} GiB</text>'
        body += f'<text x="{cx:.1f}" y="{top+chart_h+28}" text-anchor="middle" class="label">{esc(label)}</text>'
        body += f'<text x="{cx:.1f}" y="{top+chart_h+48}" text-anchor="middle" class="small">43/43 pass</text>'
    write_svg(OUT / "gguf_quant_size_quality.svg", width, height, body)


def render_memory_model() -> None:
    data = load_json("reports/memory_estimate.json")
    stored = data["stored_weights_gb"]
    gradients = data["training_gradient_pressure_gb"]
    width, height = 980, 500
    body = header(
        "Why mixed quantization made local Mac training plausible",
        "Storing experts as int8 reduces persistent weight size, but naive simultaneous gradients would still be too large.",
    )
    x0, y0 = 76, 128
    max_w = 760
    total = stored["total_estimate"][1]
    parts = [
        ("Experts int8", stored["experts_int8"], GREEN),
        ("Non-experts BF16", stored["non_experts_bf16"], BLUE),
        ("Scales/metadata", stored["scale_metadata_estimate"][1], ORANGE),
    ]
    body += f'<text x="{x0}" y="{y0-18}" class="label">Stored mixed checkpoint estimate: {total:.2f} GB</text>'
    cur = x0
    for label, value, color in parts:
        w = max_w * value / total
        body += f'<rect x="{cur:.1f}" y="{y0}" width="{w:.1f}" height="52" fill="{color}" opacity="0.86"/>'
        body += f'<text x="{cur+w/2:.1f}" y="{y0+31}" text-anchor="middle" class="value" fill="#fff">{value:.2f} GB</text>'
        cur += w
    legend_y = y0 + 80
    lx = x0
    for label, _, color in parts:
        body += f'<rect x="{lx}" y="{legend_y}" width="13" height="13" fill="{color}" opacity="0.86"/><text x="{lx+20}" y="{legend_y+11}" class="small">{esc(label)}</text>'
        lx += 180

    bars = [
        ("Naive STE FP32 expert gradients", gradients["expert_grad_float32_if_naive_ste"], RED),
        ("BF16 expert gradients if supported", gradients["expert_grad_bf16_if_supported"], ORANGE),
        ("Compressed int8/sign update target", gradients["expert_grad_int8_sign_if_custom_optimizer"], GREEN),
    ]
    bx, by, bw_max, bh = 76, 286, 760, 34
    max_g = max(v for _, v, _ in bars)
    body += f'<text x="{bx}" y="{by-22}" class="label">Gradient/update pressure alternatives</text>'
    for idx, (label, value, color) in enumerate(bars):
        y = by + idx * 54
        w = bw_max * value / max_g
        body += f'<text x="{bx}" y="{y-6}" class="small">{esc(label)}</text>'
        body += f'<rect x="{bx}" y="{y}" width="{w:.1f}" height="{bh}" rx="4" fill="{color}" opacity="0.82"/>'
        body += f'<text x="{bx+w+10:.1f}" y="{y+23}" class="value">{value:.1f} GB</text>'
    write_svg(OUT / "memory_model.svg", width, height, body)


def render_category_eval() -> None:
    summary = load_json("evals/iter10_fused_all_fixed_hermes_parser_disabled.json")["summary"]
    metrics = summary["category_metrics"]
    rows = [(k, v["passed"], v["total"]) for k, v in metrics.items()]
    width, height = 900, 460
    left, top, chart_w, chart_h = 80, 98, 690, 260
    body = header(
        "Fixed-Hermes parser-disabled eval coverage",
        "The final fused MLX model passed browser, terminal, file, finalization, and no-tool categories with structured tool_calls.",
    )
    for i in range(6):
        y = top + chart_h - i * chart_h / 5
        body += f'<line x1="{left}" y1="{y:.1f}" x2="{left+chart_w}" y2="{y:.1f}" class="axis"/>'
        body += f'<text x="{left-12}" y="{y+4:.1f}" text-anchor="end" class="tick">{i*20}%</text>'
    slot = chart_w / len(rows)
    for idx, (label, passed, total) in enumerate(rows):
        rate = passed / total
        cx = left + idx * slot + slot / 2
        h = chart_h * rate
        x = cx - 42
        y = top + chart_h - h
        body += f'<rect x="{x:.1f}" y="{y:.1f}" width="84" height="{h:.1f}" rx="4" fill="{BLUE}" opacity="0.86"/>'
        body += f'<text x="{cx:.1f}" y="{y-9:.1f}" text-anchor="middle" class="value">{passed}/{total}</text>'
        body += f'<text x="{cx:.1f}" y="{top+chart_h+28}" text-anchor="middle" class="label">{esc(label)}</text>'
    write_svg(OUT / "fixed_hermes_category_eval.svg", width, height, body)


def main() -> None:
    render_pipeline()
    render_group_sweep()
    render_dataset_filtering()
    render_eval_progression()
    render_quant_size()
    render_memory_model()
    render_category_eval()
    summary = {
        "generated": [
            "visuals/pipeline_overview.svg",
            "visuals/group_sweep_memory_time.svg",
            "visuals/dataset_filtering_10k.svg",
            "visuals/eval_progression.svg",
            "visuals/gguf_quant_size_quality.svg",
            "visuals/memory_model.svg",
            "visuals/fixed_hermes_category_eval.svg",
        ],
        "sources": [
            "reports/group_sweep_10k.json",
            "datasets/hermes_filtered_text_10k_manifest.json",
            "reports/colloquial_tool_router_repair_report.json",
            "release_summary.json",
            "reports/memory_estimate.json",
            "evals/iter10_fused_all_fixed_hermes_parser_disabled.json",
        ],
    }
    (OUT / "visual_manifest.json").write_text(json.dumps(summary, indent=2), encoding="utf-8")


if __name__ == "__main__":
    main()