diff --git a/ROADMAP.md b/ROADMAP.md
index 111ee6d7..b0e6b2b6 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -142,7 +142,7 @@ Scores by behaviour, 0–100%. Hours are what remains (one agent).
 | Styles & variables | 5 | 60% | aliasing UI, scoping, binding padding/font size/opacity/text, string and boolean bindings in the panel | 6–10 |
 | Prototyping | 6 | 60% | overlay close animation, multi-selection editing, scrolling inside device frames | 6–10 |
 | Import/export | 6 | 50% | PDF (in progress), .fig import, export panel polish, REST import of prototypes/variables | 18–32 |
-| Dev mode / inspect | 2 | 35% | measurements on canvas, code variants (Swift/Compose), assets | 6–10 |
+| Dev mode / inspect | 2 | 55% | asset export list in Inspect, redlines in the Inspect tab, code for whole frames as components | 4–6 |
 | Comments, versions, misc | 3 | 25% | comments, version history UI, plugins (WASM) | 15–25 |
 
 Weighted feature depth ≈ **52%**.
diff --git a/crates/engine/src/cmd/mod.rs b/crates/engine/src/cmd/mod.rs
index dcdb4ca9..fc041b3f 100644
--- a/crates/engine/src/cmd/mod.rs
+++ b/crates/engine/src/cmd/mod.rs
@@ -75,6 +75,7 @@ fn registry() -> &'static Registry {
         list.extend(proto::specs());
         list.extend(comment::specs());
         list.extend(crate::vectoredit::specs());
+        list.extend(crate::codegen::specs());
         let mut index = HashMap::new();
         for (i, s) in list.iter().enumerate() {
             if index.insert(s.id, i).is_some() {
diff --git a/crates/engine/src/codegen.rs b/crates/engine/src/codegen.rs
new file mode 100644
index 00000000..34e0307a
--- /dev/null
+++ b/crates/engine/src/codegen.rs
@@ -0,0 +1,507 @@
+//! Code for a layer, as shown by the Inspect panel and returned by `inspect.code`: CSS for the
+//! layer itself, and SwiftUI or Jetpack Compose for its subtree (stacks for auto layout, absolute
+//! offsets otherwise). The output is a starting point, not a pixel-exact translation.
+
+use figcraft_color::{Color, PaintKind};
+use figcraft_doc::*;
+use serde_json::json;
+
+use crate::cmd::CommandSpec;
+use crate::params::*;
+use crate::{bad, spec};
+
+pub fn specs() -> Vec<CommandSpec> {
+    vec![spec!("inspect.code", "Code for layer", "{id?, language?: css|swiftui|compose (default css)} → {code}", false, |s, p| {
+        let id = targets(s, p).first().copied().ok_or_else(|| bad("inspect.code", "select a layer"))?;
+        let lang = match string(p, "language") {
+            Some(l) => CodeLang::from_id(&l).ok_or_else(|| bad("inspect.code", "language: css|swiftui|compose"))?,
+            None => CodeLang::Css,
+        };
+        let doc = s.doc()?;
+        if !doc.contains(id) {
+            return Err(bad("inspect.code", "no such layer"));
+        }
+        Ok(json!({"code": code_for(doc, id, lang), "language": lang.id()}))
+    })]
+}
+
+/// Languages the Inspect panel offers.
+#[derive(Clone, Copy, Debug, PartialEq, Eq, Default)]
+pub enum CodeLang {
+    #[default]
+    Css,
+    SwiftUi,
+    Compose,
+}
+
+impl CodeLang {
+    pub const ALL: [CodeLang; 3] = [CodeLang::Css, CodeLang::SwiftUi, CodeLang::Compose];
+    pub fn id(self) -> &'static str {
+        match self {
+            CodeLang::Css => "css",
+            CodeLang::SwiftUi => "swiftui",
+            CodeLang::Compose => "compose",
+        }
+    }
+    pub fn label(self) -> &'static str {
+        match self {
+            CodeLang::Css => "CSS",
+            CodeLang::SwiftUi => "SwiftUI",
+            CodeLang::Compose => "Compose",
+        }
+    }
+    pub fn from_id(s: &str) -> Option<CodeLang> {
+        CodeLang::ALL.into_iter().find(|l| l.id().eq_ignore_ascii_case(s) || l.label().eq_ignore_ascii_case(s))
+    }
+}
+
+/// Layers deeper than this (or past this many children) are summarised.
+const MAX_DEPTH: usize = 12;
+const MAX_CHILDREN: usize = 200;
+
+/// `v` without trailing zeros (2 decimals).
+fn num(v: f64) -> String {
+    if !v.is_finite() {
+        return "0".into();
+    }
+    let r = (v * 100.0).round() / 100.0;
+    if (r - r.round()).abs() < 1e-9 { format!("{}", r.round() as i64) } else { format!("{r}") }
+}
+
+pub fn code_for(doc: &Document, id: NodeId, lang: CodeLang) -> String {
+    match lang {
+        CodeLang::Css => css(doc, id),
+        CodeLang::SwiftUi => {
+            let mut out = String::new();
+            swift(doc, id, 0, &mut out);
+            out
+        }
+        CodeLang::Compose => {
+            let mut out = String::new();
+            compose(doc, id, 0, &mut out);
+            out
+        }
+    }
+}
+
+fn first_fill(n: &Node) -> Option<Color> {
+    n.fills.iter().filter(|p| p.visible).find_map(|p| match &p.kind {
+        PaintKind::Solid { color } => Some(color.with_alpha(color.a * p.opacity)),
+        PaintKind::Gradient(g) => g.sorted_stops().first().map(|s| s.color),
+        PaintKind::Image(_) => None,
+    })
+}
+
+fn stroke_color(n: &Node) -> Option<Color> {
+    if !n.has_visible_stroke() {
+        return None;
+    }
+    n.strokes.iter().filter(|p| p.visible).find_map(|p| p.solid_color().map(|c| c.with_alpha(c.a * p.opacity)))
+}
+
+fn drop_shadow(n: &Node) -> Option<&Shadow> {
+    n.effects.iter().filter(|e| e.visible).find_map(|e| match &e.kind {
+        EffectKind::DropShadow(s) => Some(s),
+        _ => None,
+    })
+}
+
+fn radius(n: &Node) -> f64 {
+    n.corners.uniform().unwrap_or_else(|| n.corners.radii.iter().copied().fold(0.0, f64::max))
+}
+
+/// Text content as a string literal (escaped for Swift; Kotlin also escapes `$`).
+fn literal(s: &str, kotlin: bool) -> String {
+    let mut out = String::from("\"");
+    for c in s.chars().take(10_000) {
+        match c {
+            '"' => out.push_str("\\\""),
+            '\\' => out.push_str("\\\\"),
+            '\n' | '\u{2028}' => out.push_str("\\n"),
+            '\r' => {}
+            '\t' => out.push_str("\\t"),
+            '$' if kotlin => out.push_str("\\$"),
+            c if c.is_control() => {}
+            c => out.push(c),
+        }
+    }
+    out.push('"');
+    out
+}
+
+/// Visible children in paint order (bottom first), capped.
+fn kids(doc: &Document, n: &Node) -> Vec<NodeId> {
+    n.children.iter().copied().filter(|c| doc.node(*c).is_some_and(|k| k.visible)).take(MAX_CHILDREN).collect()
+}
+
+fn indent(depth: usize) -> String {
+    "    ".repeat(depth)
+}
+
+// ------------------------------------------------------------------ CSS
+
+fn css(doc: &Document, id: NodeId) -> String {
+    let Some(n) = doc.node(id) else { return String::new() };
+    let mut out = format!("/* {} */\n", n.name.replace("*/", "* /"));
+    out.push_str(&format!("width: {}px;\nheight: {}px;\n", num(n.width), num(n.height)));
+    if let Some(l) = &n.layout {
+        out.push_str("display: flex;\n");
+        out.push_str(&format!("flex-direction: {};\n", if l.mode == LayoutMode::Vertical { "column" } else { "row" }));
+        if l.wrap {
+            out.push_str("flex-wrap: wrap;\n");
+        }
+        out.push_str(&format!("gap: {}px;\n", num(l.gap)));
+        let [pt, pr, pb, pl] = l.padding;
+        out.push_str(&format!("padding: {}px {}px {}px {}px;\n", num(pt), num(pr), num(pb), num(pl)));
+        out.push_str(&format!(
+            "justify-content: {};\nalign-items: {};\n",
+            match l.main_align {
+                MainAlign::Min => "flex-start",
+                MainAlign::Center => "center",
+                MainAlign::Max => "flex-end",
+                MainAlign::SpaceBetween => "space-between",
+            },
+            match l.cross_align {
+                CrossAlign::Min => "flex-start",
+                CrossAlign::Center => "center",
+                CrossAlign::Max => "flex-end",
+                CrossAlign::Baseline => "baseline",
+            }
+        ));
+    }
+    if let Some(r) = n.corners.uniform().filter(|r| *r > 0.0) {
+        out.push_str(&format!("border-radius: {}px;\n", num(r)));
+    } else if n.corners.radii.iter().any(|r| *r > 0.0) {
+        let [a, b, c, d] = n.corners.radii;
+        out.push_str(&format!("border-radius: {}px {}px {}px {}px;\n", num(a), num(b), num(c), num(d)));
+    }
+    if n.opacity < 1.0 {
+        out.push_str(&format!("opacity: {};\n", num(f64::from(n.opacity))));
+    }
+    for p in n.fills.iter().filter(|p| p.visible) {
+        match &p.kind {
+            PaintKind::Solid { color } => {
+                let key = if matches!(n.kind, NodeKind::Text(_)) { "color" } else { "background" };
+                out.push_str(&format!("{key}: {};\n", color.with_alpha(color.a * p.opacity).to_css()));
+            }
+            PaintKind::Gradient(g) => {
+                let stops: Vec<String> = g.sorted_stops().iter().map(|s| format!("{} {}%", s.color.to_css(), (s.position * 100.0).round())).collect();
+                out.push_str(&format!("background: linear-gradient({});\n", stops.join(", ")));
+            }
+            PaintKind::Image(_) => out.push_str("background: url(image.png) center / cover;\n"),
+        }
+    }
+    if let Some(c) = stroke_color(n) {
+        out.push_str(&format!("border: {}px solid {};\n", num(n.stroke.weight), c.to_css()));
+    }
+    let shadows: Vec<String> = n
+        .effects
+        .iter()
+        .filter(|e| e.visible)
+        .filter_map(|e| match &e.kind {
+            EffectKind::DropShadow(s) => {
+                Some(format!("{}px {}px {}px {}px {}", num(s.offset.0), num(s.offset.1), num(s.radius), num(s.spread), s.color.to_css()))
+            }
+            EffectKind::InnerShadow(s) => {
+                Some(format!("inset {}px {}px {}px {}px {}", num(s.offset.0), num(s.offset.1), num(s.radius), num(s.spread), s.color.to_css()))
+            }
+            _ => None,
+        })
+        .collect();
+    if !shadows.is_empty() {
+        out.push_str(&format!("box-shadow: {};\n", shadows.join(", ")));
+    }
+    for e in n.effects.iter().filter(|e| e.visible) {
+        match e.kind {
+            EffectKind::LayerBlur { radius } => out.push_str(&format!("filter: blur({}px);\n", num(radius / 2.0))),
+            EffectKind::BackgroundBlur { radius } => out.push_str(&format!("backdrop-filter: blur({}px);\n", num(radius / 2.0))),
+            _ => {}
+        }
+    }
+    if let NodeKind::Text(t) = &n.kind {
+        out.push_str(&format!(
+            "font-family: \"{}\";\nfont-size: {}px;\nfont-weight: {};\n",
+            t.style.font_family,
+            num(t.style.font_size),
+            t.style.weight()
+        ));
+        if t.style.italic() {
+            out.push_str("font-style: italic;\n");
+        }
+        match t.style.line_height {
+            LineHeight::Pixels(v) => out.push_str(&format!("line-height: {}px;\n", num(v))),
+            LineHeight::Percent(p) => out.push_str(&format!("line-height: {}%;\n", num(p))),
+            LineHeight::Auto => {}
+        }
+        match t.style.letter_spacing {
+            LetterSpacing::Pixels(v) if v != 0.0 => out.push_str(&format!("letter-spacing: {}px;\n", num(v))),
+            LetterSpacing::Percent(p) if p != 0.0 => out.push_str(&format!("letter-spacing: {}em;\n", num(p / 100.0))),
+            _ => {}
+        }
+    }
+    out
+}
+
+// ------------------------------------------------------------------ SwiftUI
+
+fn swift_color(c: Color) -> String {
+    format!("Color(red: {}, green: {}, blue: {}, opacity: {})", num(f64::from(c.r)), num(f64::from(c.g)), num(f64::from(c.b)), num(f64::from(c.a)))
+}
+
+fn swift_weight(w: u16) -> &'static str {
+    match w {
+        0..=150 => ".thin",
+        151..=250 => ".ultraLight",
+        251..=350 => ".light",
+        351..=450 => ".regular",
+        451..=550 => ".medium",
+        551..=650 => ".semibold",
+        651..=750 => ".bold",
+        751..=850 => ".heavy",
+        _ => ".black",
+    }
+}
+
+fn swift(doc: &Document, id: NodeId, depth: usize, out: &mut String) {
+    let Some(n) = doc.node(id) else { return };
+    let pad = indent(depth);
+    if depth > MAX_DEPTH {
+        out.push_str(&format!("{pad}// {} …\n", n.name));
+        return;
+    }
+    let mut mods: Vec<String> = Vec::new();
+    match &n.kind {
+        NodeKind::Text(t) => {
+            out.push_str(&format!("{pad}Text({})\n", literal(&t.characters, false)));
+            mods.push(format!(
+                ".font(.custom({}, size: {}).weight({}))",
+                literal(&t.style.font_family, false),
+                num(t.style.font_size),
+                swift_weight(t.style.weight())
+            ));
+            if let Some(c) = first_fill(n) {
+                mods.push(format!(".foregroundColor({})", swift_color(c)));
+            }
+        }
+        NodeKind::Ellipse { .. } => {
+            out.push_str(&format!("{pad}Ellipse()\n"));
+            if let Some(c) = first_fill(n) {
+                mods.push(format!(".fill({})", swift_color(c)));
+            }
+            mods.push(format!(".frame(width: {}, height: {})", num(n.width), num(n.height)));
+        }
+        NodeKind::Rectangle => {
+            out.push_str(&format!("{pad}RoundedRectangle(cornerRadius: {})\n", num(radius(n))));
+            if let Some(c) = first_fill(n) {
+                mods.push(format!(".fill({})", swift_color(c)));
+            }
+            mods.push(format!(".frame(width: {}, height: {})", num(n.width), num(n.height)));
+        }
+        k if k.is_frame_like() || matches!(k, NodeKind::Group) => {
+            let children = kids(doc, n);
+            let (open, close) = match n.layout.as_ref().map(|l| (l.mode, l)) {
+                Some((LayoutMode::Vertical, l)) => (format!("VStack(alignment: .leading, spacing: {}) {{", num(l.gap)), "}"),
+                Some((_, l)) => (format!("HStack(alignment: .center, spacing: {}) {{", num(l.gap)), "}"),
+                None => ("ZStack(alignment: .topLeading) {".to_string(), "}"),
+            };
+            out.push_str(&format!("{pad}{open}\n"));
+            for c in &children {
+                swift(doc, *c, depth + 1, out);
+                // Free children sit at their offset inside a ZStack.
+                if n.layout.is_none()
+                    && let Some(cn) = doc.node(*c)
+                {
+                    let [_, _, _, _, x, y] = cn.transform.as_coeffs();
+                    out.push_str(&format!("{}    .offset(x: {}, y: {})\n", indent(depth + 1), num(x), num(y)));
+                }
+            }
+            out.push_str(&format!("{pad}{close}\n"));
+            if let Some(l) = &n.layout {
+                let [t, r, b, lft] = l.padding;
+                if [t, r, b, lft].iter().any(|v| *v > 0.0) {
+                    mods.push(format!(".padding(EdgeInsets(top: {}, leading: {}, bottom: {}, trailing: {}))", num(t), num(lft), num(b), num(r)));
+                }
+            }
+            mods.push(format!(".frame(width: {}, height: {}, alignment: .topLeading)", num(n.width), num(n.height)));
+            if let Some(c) = first_fill(n) {
+                mods.push(format!(".background({})", swift_color(c)));
+            }
+            if radius(n) > 0.0 {
+                mods.push(format!(".clipShape(RoundedRectangle(cornerRadius: {}))", num(radius(n))));
+            }
+        }
+        _ => {
+            out.push_str(&format!("{pad}// {}: export as an image asset\n{pad}Image({})\n", n.kind.label(), literal(&n.name, false)));
+            mods.push(".resizable()".into());
+            mods.push(format!(".frame(width: {}, height: {})", num(n.width), num(n.height)));
+        }
+    }
+    if let Some(c) = stroke_color(n) {
+        mods.push(format!(
+            ".overlay(RoundedRectangle(cornerRadius: {}).stroke({}, lineWidth: {}))",
+            num(radius(n)),
+            swift_color(c),
+            num(n.stroke.weight)
+        ));
+    }
+    if let Some(s) = drop_shadow(n) {
+        mods.push(format!(
+            ".shadow(color: {}, radius: {}, x: {}, y: {})",
+            swift_color(s.color),
+            num(s.radius / 2.0),
+            num(s.offset.0),
+            num(s.offset.1)
+        ));
+    }
+    if n.opacity < 1.0 {
+        mods.push(format!(".opacity({})", num(f64::from(n.opacity))));
+    }
+    for m in mods {
+        out.push_str(&format!("{pad}    {m}\n"));
+    }
+}
+
+// ------------------------------------------------------------------ Jetpack Compose
+
+fn kotlin_color(c: Color) -> String {
+    let [r, g, b, a] = c.to_rgba8();
+    format!("Color(0x{a:02X}{r:02X}{g:02X}{b:02X})")
+}
+
+/// The Modifier chain for a layer (size, shadow, background, border, alpha, padding).
+fn modifier(n: &Node, shape: &str, padding: bool) -> String {
+    let mut m = format!("Modifier.size({}.dp, {}.dp)", num(n.width), num(n.height));
+    if let Some(s) = drop_shadow(n) {
+        m.push_str(&format!(".shadow({}.dp, {shape})", num(s.radius / 2.0)));
+    }
+    if let Some(c) = first_fill(n) {
+        m.push_str(&format!(".background({}, {shape})", kotlin_color(c)));
+    }
+    if let Some(c) = stroke_color(n) {
+        m.push_str(&format!(".border({}.dp, {}, {shape})", num(n.stroke.weight), kotlin_color(c)));
+    }
+    if n.opacity < 1.0 {
+        m.push_str(&format!(".alpha({}f)", num(f64::from(n.opacity))));
+    }
+    if padding && let Some(l) = &n.layout {
+        let [t, r, b, lft] = l.padding;
+        if [t, r, b, lft].iter().any(|v| *v > 0.0) {
+            m.push_str(&format!(".padding(start = {}.dp, top = {}.dp, end = {}.dp, bottom = {}.dp)", num(lft), num(t), num(r), num(b)));
+        }
+    }
+    m
+}
+
+fn compose(doc: &Document, id: NodeId, depth: usize, out: &mut String) {
+    let Some(n) = doc.node(id) else { return };
+    let pad = indent(depth);
+    if depth > MAX_DEPTH {
+        out.push_str(&format!("{pad}// {} …\n", n.name));
+        return;
+    }
+    let shape = if radius(n) > 0.0 { format!("RoundedCornerShape({}.dp)", num(radius(n))) } else { "RectangleShape".to_string() };
+    match &n.kind {
+        NodeKind::Text(t) => {
+            let color = first_fill(n).map(kotlin_color).unwrap_or_else(|| "Color.Unspecified".into());
+            out.push_str(&format!(
+                "{pad}Text(\n{pad}    text = {},\n{pad}    fontSize = {}.sp,\n{pad}    fontWeight = FontWeight.W{},\n{pad}    color = {color},\n{pad})\n",
+                literal(&t.characters, true),
+                num(t.style.font_size),
+                (t.style.weight().clamp(100, 900) / 100) * 100
+            ));
+        }
+        NodeKind::Ellipse { .. } => out.push_str(&format!("{pad}Box(modifier = {})\n", modifier(n, "CircleShape", false))),
+        NodeKind::Rectangle => out.push_str(&format!("{pad}Box(modifier = {})\n", modifier(n, &shape, false))),
+        k if k.is_frame_like() || matches!(k, NodeKind::Group) => {
+            let children = kids(doc, n);
+            let open = match n.layout.as_ref().map(|l| (l.mode, l)) {
+                Some((LayoutMode::Vertical, l)) => format!("Column(\n{pad}    modifier = {},\n{pad}    verticalArrangement = Arrangement.spacedBy({}.dp),\n{pad}) {{", modifier(n, &shape, true), num(l.gap)),
+                Some((_, l)) => format!(
+                    "Row(\n{pad}    modifier = {},\n{pad}    horizontalArrangement = Arrangement.spacedBy({}.dp),\n{pad}    verticalAlignment = Alignment.CenterVertically,\n{pad}) {{",
+                    modifier(n, &shape, true),
+                    num(l.gap)
+                ),
+                None => format!("Box(modifier = {}) {{", modifier(n, &shape, false)),
+            };
+            out.push_str(&format!("{pad}{open}\n"));
+            for c in &children {
+                if n.layout.is_none()
+                    && let Some(cn) = doc.node(*c)
+                {
+                    let [_, _, _, _, x, y] = cn.transform.as_coeffs();
+                    out.push_str(&format!("{}Box(modifier = Modifier.offset({}.dp, {}.dp)) {{\n", indent(depth + 1), num(x), num(y)));
+                    compose(doc, *c, depth + 2, out);
+                    out.push_str(&format!("{}}}\n", indent(depth + 1)));
+                } else {
+                    compose(doc, *c, depth + 1, out);
+                }
+            }
+            out.push_str(&format!("{pad}}}\n"));
+        }
+        _ => out.push_str(&format!(
+            "{pad}// {}: export as an image asset\n{pad}Image(painter = painterResource(R.drawable.asset), contentDescription = {}, modifier = Modifier.size({}.dp, {}.dp))\n",
+            n.kind.label(),
+            literal(&n.name, true),
+            num(n.width),
+            num(n.height)
+        )),
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::Session;
+    use crate::params::id_of;
+    use serde_json::json;
+
+    fn card(s: &mut Session) -> NodeId {
+        let f = id_of(&s.execute("frame.create", &json!({"x": 0, "y": 0, "width": 200, "height": 100, "name": "Card"})).unwrap()["id"]).unwrap();
+        s.execute("node.set", &json!({"id": f, "props": {"fills": ["#FFFFFF"], "cornerRadius": 12}})).unwrap();
+        s.execute("text.create", &json!({"text": "Say \"hi\" $5\nnow", "x": 0, "y": 0, "parent": f})).unwrap();
+        s.execute("shape.ellipse", &json!({"x": 0, "y": 0, "width": 24, "height": 24, "parent": f})).unwrap();
+        s.execute("layout.add", &json!({"ids": [f]})).unwrap();
+        f
+    }
+
+    #[test]
+    fn swiftui_and_compose_for_an_auto_layout_card() {
+        let mut s = Session::new();
+        let f = card(&mut s);
+        let doc = s.doc().unwrap();
+        let sw = code_for(doc, f, CodeLang::SwiftUi);
+        assert!(sw.contains("Stack(alignment:"), "{sw}");
+        assert!(sw.contains("Text(\"Say \\\"hi\\\" $5\\nnow\")"), "escaped: {sw}");
+        assert!(sw.contains("Ellipse()"));
+        assert!(sw.contains(".clipShape(RoundedRectangle(cornerRadius: 12))"));
+        let kt = code_for(doc, f, CodeLang::Compose);
+        assert!(kt.contains("Arrangement.spacedBy("), "{kt}");
+        assert!(kt.contains("\\$5"), "Kotlin escapes $: {kt}");
+        assert!(kt.contains("CircleShape"));
+        assert!(kt.contains("RoundedCornerShape(12.dp)"));
+        let css = code_for(doc, f, CodeLang::Css);
+        assert!(css.contains("display: flex;") && css.contains("border-radius: 12px;"));
+        // Through the command.
+        let v = s.execute("inspect.code", &json!({"id": f, "language": "compose"})).unwrap();
+        assert_eq!(v["code"].as_str().unwrap(), kt);
+        assert!(s.execute("inspect.code", &json!({"id": f, "language": "cobol"})).is_err());
+    }
+
+    #[test]
+    fn free_children_get_offsets_and_deep_trees_are_capped() {
+        let mut s = Session::new();
+        let mut parent = id_of(&s.execute("frame.create", &json!({"x": 0, "y": 0, "width": 50, "height": 50})).unwrap()["id"]).unwrap();
+        let root = parent;
+        s.execute("shape.rectangle", &json!({"x": 7, "y": 9, "width": 5, "height": 5, "parent": root})).unwrap();
+        for _ in 0..20 {
+            parent = id_of(&s.execute("frame.create", &json!({"x": 1, "y": 1, "width": 40, "height": 40, "parent": parent})).unwrap()["id"]).unwrap();
+        }
+        let doc = s.doc().unwrap();
+        let sw = code_for(doc, root, CodeLang::SwiftUi);
+        assert!(sw.contains(".offset(x: 7, y: 9)"), "{sw}");
+        assert!(sw.contains("…"), "depth capped");
+        let kt = code_for(doc, root, CodeLang::Compose);
+        assert!(kt.contains("Modifier.offset(7.dp, 9.dp)"));
+        assert!(code_for(doc, NodeId(999_999), CodeLang::Css).is_empty());
+    }
+}
diff --git a/crates/engine/src/lib.rs b/crates/engine/src/lib.rs
index 9d58c737..72717aa3 100644
--- a/crates/engine/src/lib.rs
+++ b/crates/engine/src/lib.rs
@@ -9,6 +9,7 @@
 
 pub mod catalog;
 pub mod cmd;
+pub mod codegen;
 pub mod components;
 pub mod drop;
 pub mod guard;
diff --git a/crates/ui-egui/src/menus.rs b/crates/ui-egui/src/menus.rs
index a99efaf0..43b3180a 100644
--- a/crates/ui-egui/src/menus.rs
+++ b/crates/ui-egui/src/menus.rs
@@ -38,7 +38,7 @@ pub fn invoke(app: &mut FigApp, id: &str) {
         "edit.copyAsCss" => {
             let ids = app.session.selection();
             if let (Some(first), Ok(doc)) = (ids.first(), app.session.doc()) {
-                let css = crate::right::css_for(doc, *first);
+                let css = figcraft_engine::codegen::code_for(doc, *first, figcraft_engine::codegen::CodeLang::Css);
                 app.services.clipboard_set_text(&css);
                 app.toast("Copied as CSS");
             }
diff --git a/crates/ui-egui/src/right.rs b/crates/ui-egui/src/right.rs
index ab6047e8..c99deb30 100644
--- a/crates/ui-egui/src/right.rs
+++ b/crates/ui-egui/src/right.rs
@@ -1287,118 +1287,7 @@ fn export(app: &mut FigApp, ui: &mut Ui, doc: &Document, sel: &[NodeId]) {
     });
 }
 
-/// CSS for a node (Inspect / Copy as CSS).
-pub fn css_for(doc: &Document, id: NodeId) -> String {
-    let Some(n) = doc.node(id) else { return String::new() };
-    let mut out = format!("/* {} */\n", n.name);
-    out.push_str(&format!("width: {}px;\nheight: {}px;\n", crate::canvas::fmt(n.width), crate::canvas::fmt(n.height)));
-    if let Some(l) = &n.layout {
-        out.push_str("display: flex;\n");
-        out.push_str(&format!("flex-direction: {};\n", if l.mode == LayoutMode::Vertical { "column" } else { "row" }));
-        if l.wrap {
-            out.push_str("flex-wrap: wrap;\n");
-        }
-        out.push_str(&format!("gap: {}px;\n", crate::canvas::fmt(l.gap)));
-        let [pt, pr, pb, pl] = l.padding;
-        out.push_str(&format!(
-            "padding: {}px {}px {}px {}px;\n",
-            crate::canvas::fmt(pt),
-            crate::canvas::fmt(pr),
-            crate::canvas::fmt(pb),
-            crate::canvas::fmt(pl)
-        ));
-        out.push_str(&format!(
-            "justify-content: {};\nalign-items: {};\n",
-            match l.main_align {
-                MainAlign::Min => "flex-start",
-                MainAlign::Center => "center",
-                MainAlign::Max => "flex-end",
-                MainAlign::SpaceBetween => "space-between",
-            },
-            match l.cross_align {
-                CrossAlign::Min => "flex-start",
-                CrossAlign::Center => "center",
-                CrossAlign::Max => "flex-end",
-                CrossAlign::Baseline => "baseline",
-            }
-        ));
-    }
-    if let Some(r) = n.corners.uniform().filter(|r| *r > 0.0) {
-        out.push_str(&format!("border-radius: {}px;\n", crate::canvas::fmt(r)));
-    } else if n.corners.radii.iter().any(|r| *r > 0.0) {
-        let [a, b, c, d] = n.corners.radii;
-        out.push_str(&format!("border-radius: {}px {}px {}px {}px;\n", a, b, c, d));
-    }
-    if n.opacity < 1.0 {
-        out.push_str(&format!("opacity: {};\n", n.opacity));
-    }
-    for p in n.fills.iter().filter(|p| p.visible) {
-        match &p.kind {
-            PaintKind::Solid { color } => {
-                let key = if matches!(n.kind, NodeKind::Text(_)) { "color" } else { "background" };
-                out.push_str(&format!("{key}: {};\n", color.with_alpha(color.a * p.opacity).to_css()));
-            }
-            PaintKind::Gradient(g) => {
-                let stops: Vec<String> = g.sorted_stops().iter().map(|s| format!("{} {}%", s.color.to_css(), (s.position * 100.0).round())).collect();
-                out.push_str(&format!("background: linear-gradient({});\n", stops.join(", ")));
-            }
-            PaintKind::Image(_) => out.push_str("background: url(image.png) center / cover;\n"),
-        }
-    }
-    if n.has_visible_stroke()
-        && let Some(c) = n.strokes.first().and_then(|p| p.solid_color())
-    {
-        out.push_str(&format!("border: {}px solid {};\n", crate::canvas::fmt(n.stroke.weight), c.to_css()));
-    }
-    let shadows: Vec<String> = n
-        .effects
-        .iter()
-        .filter(|e| e.visible)
-        .filter_map(|e| match &e.kind {
-            EffectKind::DropShadow(s) => Some(format!("{}px {}px {}px {}px {}", s.offset.0, s.offset.1, s.radius, s.spread, s.color.to_css())),
-            EffectKind::InnerShadow(s) => Some(format!("inset {}px {}px {}px {}px {}", s.offset.0, s.offset.1, s.radius, s.spread, s.color.to_css())),
-            _ => None,
-        })
-        .collect();
-    if !shadows.is_empty() {
-        out.push_str(&format!("box-shadow: {};\n", shadows.join(", ")));
-    }
-    for e in n.effects.iter().filter(|e| e.visible) {
-        match e.kind {
-            EffectKind::LayerBlur { radius } => out.push_str(&format!("filter: blur({}px);\n", radius / 2.0)),
-            EffectKind::BackgroundBlur { radius } => out.push_str(&format!("backdrop-filter: blur({}px);\n", radius / 2.0)),
-            _ => {}
-        }
-    }
-    if let NodeKind::Text(t) = &n.kind {
-        out.push_str(&format!(
-            "font-family: \"{}\";\nfont-size: {}px;\nfont-weight: {};\n",
-            t.style.font_family,
-            t.style.font_size,
-            t.style.weight()
-        ));
-        if t.style.italic() {
-            out.push_str("font-style: italic;\n");
-        }
-        match t.style.line_height {
-            LineHeight::Pixels(v) => out.push_str(&format!("line-height: {v}px;\n")),
-            LineHeight::Percent(p) => out.push_str(&format!("line-height: {p}%;\n")),
-            LineHeight::Auto => {}
-        }
-        if let LetterSpacing::Pixels(v) = t.style.letter_spacing
-            && v != 0.0
-        {
-            out.push_str(&format!("letter-spacing: {v}px;\n"));
-        }
-        if let LetterSpacing::Percent(p) = t.style.letter_spacing
-            && p != 0.0
-        {
-            out.push_str(&format!("letter-spacing: {}em;\n", p / 100.0));
-        }
-    }
-    out
-}
-
+/// The Inspect tab: size and position, and code for the selected layer.
 fn inspect(app: &mut FigApp, ui: &mut Ui) {
     let t = Tokens::get(ui.ctx());
     let Ok(ds) = app.session.ds() else { return };
@@ -1425,21 +1314,37 @@ fn inspect(app: &mut FigApp, ui: &mut Ui) {
         });
     }
     widgets::separator(ui);
-    widgets::section_header(ui, "CSS", &[(Icon::Export, "Copy")], false);
-    let css = css_for(&doc, first);
+    use figcraft_engine::codegen::{CodeLang, code_for};
+    let lang_id = Id::new("inspect_lang");
+    let lang = ui.data(|d| d.get_temp::<usize>(lang_id)).and_then(|i| CodeLang::ALL.get(i).copied()).unwrap_or_default();
+    let copy = widgets::section_header(ui, "Code", &[(Icon::Export, "Copy")], false).is_some();
+    row(ui, 32.0, |ui| {
+        let resp = widgets::dropdown(ui, lang.label(), 120.0, Some(Icon::Code));
+        egui::Popup::menu(&resp).show(|ui| {
+            for (i, l) in CodeLang::ALL.iter().enumerate() {
+                if menu_item(ui, l.label(), "") {
+                    ui.data_mut(|d| d.insert_temp(lang_id, i));
+                    ui.close();
+                }
+            }
+        });
+    });
+    let code = code_for(&doc, first, lang);
     egui::Frame::NONE
         .fill(t.field)
         .corner_radius(CornerRadius::same(6))
         .inner_margin(egui::Margin::same(10))
         .outer_margin(egui::Margin::symmetric(16, 0))
         .show(ui, |ui| {
-            ui.label(egui::RichText::new(&css).monospace().color(t.text));
+            ui.label(egui::RichText::new(&code).monospace().color(t.text));
         });
     ui.add_space(8.0);
+    let mut copy_clicked = copy;
     row(ui, 32.0, |ui| {
-        if ui.button("Copy CSS").clicked() {
-            app.services.clipboard_set_text(&css);
-            app.toast("Copied CSS");
-        }
+        copy_clicked |= ui.button(format!("Copy {}", lang.label())).clicked();
     });
+    if copy_clicked {
+        app.services.clipboard_set_text(&code);
+        app.toast(format!("Copied {}", lang.label()));
+    }
 }
diff --git a/docs/mcp.md b/docs/mcp.md
index 85ea53b9..16ee14ff 100644
--- a/docs/mcp.md
+++ b/docs/mcp.md
@@ -95,7 +95,7 @@ Or in a project's `.mcp.json`:
 | Tool | What it does |
 |---|---|
 | `list_commands {filter?}` | Every command: id, label, menu, shortcut, undoable, params doc. |
-| `run_command {command, params}` | Run any command (e.g. `align.left`, `layout.add`, `component.create`, `instance.place` (drop an instance at a page point into the frame or auto layout slot under it), `style.create`, `variable.bind`, `proto.interaction.add`). |
+| `run_command {command, params}` | Run any command (e.g. `align.left`, `layout.add`, `component.create`, `instance.place` (drop an instance at a page point into the frame or auto layout slot under it), `inspect.code` (CSS, SwiftUI or Jetpack Compose for a layer), `style.create`, `variable.bind`, `proto.interaction.add`). |
 | `batch {commands: [{command, params}], label?}` | Several commands as one undo step (`command.batch`); all-or-nothing. |
 | `create_node {type, x, y, width, height, parent, index, name, text, path, props}` | Create a frame, rectangle, ellipse, polygon, star, line, arrow, text, vector, section, component or slice; returns `{id, node}`. |
 | `set_properties {ids, props}` | `node.set` on layers (geometry, fills, strokes, effects, corner radius, auto layout, sizing, constraints, text…); returns the updated layers. |