M8: a font's damaged table offsets are skipped instead of wrapping on 32-bit targets (#1125)

normal_track read the trak size table at a file-controlled u32 offset with unchecked additions,
which wrap on 32-bit targets such as wasm32 (a debug panic, or reads at the wrong offset). Its
reads are now checked, and an incomplete normal track is dropped entirely, never returned in part.

index_bytes was already bounded by fill(), which checks each range before the flagged additions
run; this makes those bounds explicit, still skipping damaged faces and reading later faces' name
tables without their outlines.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Co-Authored-By: GPT-6.1 Sol <noreply@openai.com>
Co-Authored-By: GPT-6 Astra <noreply@openai.com>

ROADMAP.md

@@ -2,7 +2,7 @@
 
 **Stage: alpha** · next: beta, ~26 points and ~162–292 h away (one Opus 5.5 agent; ~33–67 h wall-clock with 5 agents)
 
-> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-30 · **Change:** minor (a name typed for a variable or collection finds the one with that exact id before one named like it, and stored mode ids, font family variables and the panels' labels read exact ids (#1613); plugin widgets have hover styles: a layer's `hover` fill, stroke, opacity or text colour shows while the pointer is over it (gap 6); `.fig` elbowed and curved connectors without a saved path are routed like board connectors instead of drawn straight (gap 1); every file a command reads whole by path is a regular file within a cap that fits it: documents 16 GiB, placed images 256 MiB, CLI scripts 1 GiB; `figcraft-cli connect publish` publishes a code repository's code connect mappings to a design file (gap 16); while a drag only moves a large selection, its outlines, box, slots, spacing and Design panel values are worked out once and shifted, not rebuilt on every move (#1571); Shift+Cmd/Ctrl+Enter on a selected board shape adds the next shape already joined to it, and goes on typing (#1597); an imported or pasted file finds an installed family under the other names its fonts give it, and with other case and spacing, instead of reporting it missing (#1292); a development example generates figcraft-cli's shell completions and man pages from its clap definitions (part of #1396); `.fig` ZIP image reads share a total byte budget and count skipped images in the import warnings (#1076); German terminology corrections (M10): gradient stops, OpenType stylistic sets and the Home-screen preference; every file a command reads whole by path is a regular file within a cap that fits it: documents 16 GiB, placed images 256 MiB, CLI scripts 1 GiB; a component set's property rows fit the 240 px right panel: variant values wrap two to a line there and every + and − stays in view; the server key is checked by comparing SHA-256 hashes of the presented and the kept key, as the deployment guide says (#1130); opening a file contacts no team library server it names until you check it (#1097); a hostile server can no longer grow a client's memory with made-up people, and a session remembers a bounded number of deleted layer ids (#1121); `doc.list` gives AI agents and plugins the open files' names, not their paths (#1117); with a large selection, frames where nothing changed reuse the selection's outlines, box and slots and the Design panel's instance and position values instead of working them out again (#1571); team libraries and plugins larger than the 16 MiB download burst can be downloaded again, more slowly (#1089); a batch keeps one undo snapshot, not one per step (#1099); files nested 256 levels deep import on the browser's 1 MB stack (#1101); SVG and PDF exports count pattern sources and the renders they embed from the layer's depth, so one cap bounds a whole export (#1082); an explicit variables file path (`variable.import`, the `variables` of `file.open` and `file.import`) is refused past 256 MiB or when it isn't a regular file, as the sibling `variables.json` already was (part of #1114); joining and leaving a file nobody is editing reads and writes nothing on the server: it stays loaded a minute after everyone leaves (#1074); opening a `.figcraft` file unpacks at most 6 GiB in all (2 GiB in the browser), every area together (#1079); hovering the canvas hit-tests once per pointer move, not on every frame, and moving an auto layout frame no longer lays out its contents again on every move (#1571); `.fig` instance expansion no longer walks variable nodes for every instance or copies every outer override row into each nested instance (#1077); `comment.people` lists names that were only @mentioned, and `comment.next` and `comment.prompt` carry the mentions too (#1415); grid auto-placement looks for free cells a 64-bit word at a time and skips what blocks it, with the same placements (#1083); with the pen out, Enter or a double-click ends the path and edits the vector with the Move tool instead of drawing on (#1430); a recovery copy made while a version is previewed holds the file, not the version shown; a FigJam `.jam` file opens as a board (#1342); the Actions palette offers only commands that run from it, and no second row reading like a menu item: Place image opens the file dialog (#1574); share links can comment: a third access level beside edit and view, whose holder sees the file live and adds, replies to, reacts to and resolves comments but can't change the design; Preferences ▸ Scroll wheel zoom: a mouse wheel zooms the canvas about the pointer and Cmd/Ctrl+wheel scrolls (#1390); `comment.list {mentions}` lists only the threads that @mention a name (#1415); in the browser an internal error that stops the page keeps its unsaved files, which open again on reload (#1123); boolean operations refuse input past their caps, and a boolean group past them draws without its result (#1104); figcraft-cli parses its arguments with clap, following RFC-0012 (Line truncated
+> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-30 · **Change:** minor (damaged font tracking table offsets are checked instead of wrapping on 32-bit targets, and font indexing makes its existing offset bounds explicit (#1125); a name typed for a variable or collection finds the one with that exact id before one named like it, and stored mode ids, font family variables and the panels' labels read exact ids (#1613); plugin widgets have hover styles: a layer's `hover` fill, stroke, opacity or text colour shows while the pointer is over it (gap 6); `.fig` elbowed and curved connectors without a saved path are routed like board connectors instead of drawn straight (gap 1); every file a command reads whole by path is a regular file within a cap that fits it: documents 16 GiB, placed images 256 MiB, CLI scripts 1 GiB; `figcraft-cli connect publish` publishes a code repository's code connect mappings to a design file (gap 16); while a drag only moves a large selection, its outlines, box, slots, spacing and Design panel values are worked out once and shifted, not rebuilt on every move (#1571); Shift+Cmd/Ctrl+Enter on a selected board shape adds the next shape already joined to it, and goes on typing (#1597); an imported or pasted file finds an installed family under the other names its fonts give it, and with other case and spacing, instead of reporting it missing (#1292); a development example generates figcraft-cli's shell completions and man pages from its clap definitions (part of #1396); `.fig` ZIP image reads share a total byte budget and count skipped images in the import warnings (#1076); German terminology corrections (M10): gradient stops, OpenType stylistic sets and the Home-screen preference; every file a command reads whole by path is a regular file within a cap that fits it: documents 16 GiB, placed images 256 MiB, CLI scripts 1 GiB; a component set's property rows fit the 240 px right panel: variant values wrap two to a line there and every + and − stays in view; the server key is checked by comparing SHA-256 hashes of the presented and the kept key, as the deployment guide says (#1130); opening a file contacts no team library server it names until you check it (#1097); a hostile server can no longer grow a client's memory with made-up people, and a session remembers a bounded number of deleted layer ids (#1121); `doc.list` gives AI agents and plugins the open files' names, not their paths (#1117); with a large selection, frames where nothing changed reuse the selection's outlines, box and slots and the Design panel's instance and position values instead of working them out again (#1571); team libraries and plugins larger than the 16 MiB download burst can be downloaded again, more slowly (#1089); a batch keeps one undo snapshot, not one per step (#1099); files nested 256 levels deep import on the browser's 1 MB stack (#1101); SVG and PDF exports count pattern sources and the renders they embed from the layer's depth, so one cap bounds a whole export (#1082); an explicit variables file path (`variable.import`, the `variables` of `file.open` and `file.import`) is refused past 256 MiB or when it isn't a regular file, as the sibling `variables.json` already was (part of #1114); joining and leaving a file nobody is editing reads and writes nothing on the server: it stays loaded a minute after everyone leaves (#1074); opening a `.figcraft` file unpacks at most 6 GiB in all (2 GiB in the browser), every area together (#1079); hovering the canvas hit-tests once per pointer move, not on every frame, and moving an auto layout frame no longer lays out its contents again on every move (#1571); `.fig` instance expansion no longer walks variable nodes for every instance or copies every outer override row into each nested instance (#1077); `comment.people` lists names that were only @mentioned, and `comment.next` and `comment.prompt` carry the mentions too (#1415); grid auto-placement looks for free cells a 64-bit word at a time and skips what blocks it, with the same placements (#1083); with the pen out, Enter or a double-click ends the path and edits the vector with the Move tool instead of drawing on (#1430); a recovery copy made while a version is previewed holds the file, not the version shown; a FigJam `.jam` file opens as a board (#1342); the Actions palette offers only commands that run from it, and no second row reading like a menu item: Place image opens the file dialog (#1574); share links can comment: a third access level beside edit and view, whose holder sees the file live and adds, replies to, reacts to and resolves comments but can't change the design; Preferences ▸ Scroll wheel zoom: a mouse wheel zooms the canvas about the pointer and Cmd/Ctrl+wheel scrolls (#1390); `comment.list {mentions}` lists only the threads that @mention a name (#1415); in the browser an internal error that stops the page keeps its unsaved files, which open again on reload (#1123); boolean operations refLine truncated
 
 FigCraft is a clean-room, open-source, pure-Rust reimplementation of the Figma design workflow,
 native on macOS, Windows, Linux and FreeBSD and in the browser, fully drivable by agents through
@@ -60,7 +60,7 @@ native speakers' reviews of the nine language drafts need people.
 | UI/UX fidelity | 58% | 40–60 | [ui-parity](docs/ui-parity.md) |
 | File formats | 60% (`.fig` read best effort with editable vectors and a total ZIP image byte budget; experimental write, round trips through our own importer and written files opened in other software) | 5–10 | [file-format-parity](docs/file-format-parity.md) |
 | Collaboration | 13% (core in; live sessions with document sync, cursors and text carets, cursor chat and spotlight, the browser joins and publishes to a server, invite links open the app; a self-hosted server with edit and view links and team libraries; preview) | 46–92 | [collaboration-parity](docs/collaboration-parity.md) |
-| Stability | 55% | 20–40 | [gaps](docs/gaps.md) |
+| Stability | 55% (damaged font tracking table offsets are checked instead of wrapping on 32-bit targets, #1125) | 20–40 | [gaps](docs/gaps.md) |
 | Performance | 60% | 30–60 | [hardware-parity](docs/hardware-parity.md) |
 | Hardware | 60% | 10–21 | [hardware-parity](docs/hardware-parity.md) |
 | Localization | 39% (layer; English; Russian and Turkish reviewed by native speakers; Spanish with a Latin American overlay, French, German, Brazilian Portuguese, Japanese, Korean, Simplified Chinese, Indonesian and Czech drafts; CJK UI fonts); Arabic draft: 2,508 entries, native review and panel mirroring pending | 29–51 | [localization-parity](docs/localization-parity.md) |
@@ -132,6 +132,7 @@ Ranked; detail and milestones in [`docs/roadmap.md`](docs/roadmap.md).
 
 ## Progress log
 
+- **2026-10-30**: M8, #1125: damaged `trak` size-table offsets are checked instead of wrapping on 32-bit targets, and an incomplete normal track is dropped entirely, never returned in part. Font indexing makes its existing bounds explicit, preserving later faces and sparse name-table reads. Synthetic regression tests in `fontdb_tests.rs`. Numbers unchanged.
 - **2026-10-29** · M10: correct nine German labels in `de.toml`: gradient stops use Verlaufsstopp, OpenType ss01–ss05 use Stilsatz, and the Home-screen preference names the Startbildschirm consistently in the UI and Actions palette. This is a partial terminology pass; German remains a draft awaiting a full native-speaker review and maintainer approval. Numbers unchanged.
 - **2026-10-28** · M3, #922: an instance scaled with the Scale tool (or `transform.scale`) keeps its layers' scaled size and points when its main is rebuilt. The scaled layers' new size and place were read as what constraints give (an ancestor resized in the same edit), so no override was kept, and adding a layer to the main put a 14 px icon's 24 px triangle back. The Scale tool now records them as `size` and `position` overrides on layers inside instances; strokes already kept theirs. The report's own sequence (clearing effects on the component holding the icon) no longer reproduces on main. Regressions for a scaled instance, one scaled with the tool (with undo) and a scaled icon nested in a component and its instances. Numbers unchanged.
 - **2026-10-28** · M6, #1059: `.fig` import copies each image carried inside the message once per blob, shared by every hash that names it, instead of once per hash: a file pointing many hashes at one large blob no longer multiplies it in memory (100 hashes on a 250 MB blob were 25 GB). Regression test. Numbers unchanged.

crates/text/src/fontdb.rs

@@ -481,11 +481,12 @@ fn name_string(f: &skrifa::FontRef, id: StringId) -> Option<String> {
 }
 
 /// The normal (0) horizontal track of a `trak` table: (size, tracking in font units) by size. Empty
-/// when the table is missing, damaged or has no normal track.
+/// when the table is missing, damaged or has no normal track. A short size or value array invalidates
+/// the entire track.
 fn normal_track(t: &[u8]) -> Vec<(f64, f64)> {
-    let u16_at = |o: usize| t.get(o..o + 2).map(|b| u16::from_be_bytes([b[0], b[1]]));
-    let i16_at = |o: usize| t.get(o..o + 2).map(|b| i16::from_be_bytes([b[0], b[1]]));
-    let fixed_at = |o: usize| t.get(o..o + 4).map(|b| f64::from(i32::from_be_bytes([b[0], b[1], b[2], b[3]])) / 65536.0);
+    let u16_at = |o: usize| t.get(o..o.checked_add(2)?).map(|b| u16::from_be_bytes([b[0], b[1]]));
+    let i16_at = |o: usize| t.get(o..o.checked_add(2)?).map(|b| i16::from_be_bytes([b[0], b[1]]));
+    let fixed_at = |o: usize| t.get(o..o.checked_add(4)?).map(|b| f64::from(i32::from_be_bytes([b[0], b[1], b[2], b[3]])) / 65536.0);
     let Some(horiz) = u16_at(6).map(usize::from).filter(|o| *o > 0) else { return Vec::new() };
     let (Some(tracks), Some(sizes)) = (u16_at(horiz).map(usize::from), u16_at(horiz + 2).map(usize::from)) else { return Vec::new() };
     let Some(size_table) = t.get(horiz + 4..horiz + 8).map(|b| u32::from_be_bytes([b[0], b[1], b[2], b[3]]) as usize) else { return Vec::new() };
@@ -497,10 +498,10 @@ fn normal_track(t: &[u8]) -> Vec<(f64, f64)> {
         }
         let Some(values) = u16_at(entry + 6).map(usize::from) else { return Vec::new() };
         let out: Vec<(f64, f64)> = (0..sizes)
-            .filter_map(|i| Some((fixed_at(size_table + i * 4)?, f64::from(i16_at(values + i * 2)?))))
+            .filter_map(|i| Some((fixed_at(size_table.checked_add(i.checked_mul(4)?)?)?, f64::from(i16_at(values.checked_add(i * 2)?)?))))
             .filter(|(s, _)| s.is_finite())
             .collect();
-        return if out.windows(2).all(|w| w[0].0 < w[1].0) { out } else { Vec::new() };
+        return if out.len() == sizes && out.windows(2).all(|w| w[0].0 < w[1].0) { out } else { Vec::new() };
     }
     Vec::new()
 }
@@ -1321,14 +1322,17 @@ fn index_bytes(path: &std::path::Path, len: usize) -> Option<Vec<u8>> {
     } else {
         vec![0]
     };
-    for at in fonts {
-        let Some(tables) = fill(&mut buf, at, 12).and_then(|()| be(&buf, at + 4, 2)) else { continue };
-        if fill(&mut buf, at + 12, 16 * tables).is_none() {
+    'faces: for at in fonts {
+        let Some(tables) = fill(&mut buf, at, 12).and_then(|()| be(&buf, at.checked_add(4)?, 2)) else { continue };
+        let Some(dir) = at.checked_add(12) else { continue };
+        if fill(&mut buf, dir, 16 * tables).is_none() {
             continue;
         }
-        for rec in (0..tables).map(|t| at + 12 + 16 * t) {
-            if buf.get(rec..rec + 4) == Some(b"name")
-                && let (Some(off), Some(n)) = (be(&buf, rec + 8, 4), be(&buf, rec + 12, 4))
+        for t in 0..tables {
+            let Some(rec) = dir.checked_add(16 * t) else { continue 'faces };
+            let (Some(tag_end), Some(off_at), Some(len_at)) = (rec.checked_add(4), rec.checked_add(8), rec.checked_add(12)) else { continue 'faces };
+            if buf.get(rec..tag_end) == Some(b"name")
+                && let (Some(off), Some(n)) = (be(&buf, off_at, 4), be(&buf, len_at, 4))
             {
                 let _ = fill(&mut buf, off, n);
             }

crates/text/src/fontdb_tests.rs

@@ -73,6 +73,62 @@ fn the_scan_reads_names_like_a_whole_file_read() {
     }
 }
 
+fn indexed_test_font(bytes: &[u8], case: &str) -> Vec<u8> {
+    struct TempFile(std::path::PathBuf);
+    impl Drop for TempFile {
+        fn drop(&mut self) {
+            let _ = std::fs::remove_file(&self.0);
+        }
+    }
+    let file = TempFile(std::env::temp_dir().join(format!("figcraft-font-index-{case}-{}.ttc", std::process::id())));
+    std::fs::write(&file.0, bytes).unwrap();
+    index_bytes(&file.0, bytes.len()).unwrap()
+}
+
+fn synthetic_font_collection(first: u32) -> Vec<u8> {
+    let mut bytes = vec![0; 112];
+    bytes[..4].copy_from_slice(b"ttcf");
+    bytes[4..8].copy_from_slice(&0x0001_0000u32.to_be_bytes());
+    bytes[8..12].copy_from_slice(&2u32.to_be_bytes());
+    bytes[12..16].copy_from_slice(&first.to_be_bytes());
+    bytes[16..20].copy_from_slice(&32u32.to_be_bytes());
+    // The second face has a name table and an outline table. Only names should be read.
+    bytes[32..36].copy_from_slice(&0x0001_0000u32.to_be_bytes());
+    bytes[36..38].copy_from_slice(&2u16.to_be_bytes());
+    bytes[44..48].copy_from_slice(b"name");
+    bytes[52..56].copy_from_slice(&80u32.to_be_bytes());
+    bytes[56..60].copy_from_slice(&8u32.to_be_bytes());
+    bytes[60..64].copy_from_slice(b"glyf");
+    bytes[68..72].copy_from_slice(&96u32.to_be_bytes());
+    bytes[72..76].copy_from_slice(&4u32.to_be_bytes());
+    bytes[80..88].copy_from_slice(b"fontname");
+    bytes[96..100].copy_from_slice(b"skip");
+    bytes
+}
+
+#[test]
+fn index_bytes_skips_collection_offsets_near_u32_max() {
+    for offset in [u32::MAX - 11, u32::MAX - 1, u32::MAX] {
+        let bytes = synthetic_font_collection(offset);
+        let indexed = indexed_test_font(&bytes, "offset");
+        assert_eq!(&indexed[32..76], &bytes[32..76]);
+        assert_eq!(&indexed[80..88], b"fontname");
+        assert_eq!(&indexed[96..100], &[0; 4], "outline bytes stay unread");
+    }
+}
+
+#[test]
+fn index_bytes_skips_a_truncated_directory_and_reads_the_next_face() {
+    let mut bytes = synthetic_font_collection(100);
+    bytes[100..104].copy_from_slice(&0x0001_0000u32.to_be_bytes());
+    bytes[104..106].copy_from_slice(&2u16.to_be_bytes());
+    let indexed = indexed_test_font(&bytes, "directory");
+    assert_eq!(&indexed[100..112], &bytes[100..112], "the header fits but its directory does not");
+    assert_eq!(&indexed[32..76], &bytes[32..76]);
+    assert_eq!(&indexed[80..88], b"fontname");
+    assert_eq!(&indexed[96..100], &[0; 4], "outline bytes stay unread");
+}
+
 #[test]
 fn macos_font_assets_are_found_in_the_asset_store() {
     // A store laid out like macOS's: fonts downloaded on demand sit in `<id>.asset/AssetData`
@@ -403,6 +459,51 @@ fn named_styles_keep_their_optical_size() {
     assert_eq!(face.axis_values(&style)[opsz], face.axes[opsz].max);
 }
 
+fn synthetic_trak() -> Vec<u8> {
+    let mut bytes = vec![0; 46];
+    bytes[..4].copy_from_slice(&0x0001_0000u32.to_be_bytes());
+    bytes[6..8].copy_from_slice(&12u16.to_be_bytes());
+    bytes[12..14].copy_from_slice(&1u16.to_be_bytes());
+    bytes[14..16].copy_from_slice(&3u16.to_be_bytes());
+    bytes[16..20].copy_from_slice(&28u32.to_be_bytes());
+    // The normal track (0.0), with three sizes and their signed tracking values.
+    bytes[24..26].copy_from_slice(&256u16.to_be_bytes());
+    bytes[26..28].copy_from_slice(&40u16.to_be_bytes());
+    for (i, size) in [10i32, 20, 40].into_iter().enumerate() {
+        bytes[28 + i * 4..32 + i * 4].copy_from_slice(&(size * 65536).to_be_bytes());
+    }
+    for (i, value) in [-8i16, 0, 16].into_iter().enumerate() {
+        bytes[40 + i * 2..42 + i * 2].copy_from_slice(&value.to_be_bytes());
+    }
+    bytes
+}
+
+#[test]
+fn normal_track_reads_a_well_formed_table() {
+    assert_eq!(normal_track(&synthetic_trak()), [(10.0, -8.0), (20.0, 0.0), (40.0, 16.0)]);
+}
+
+#[test]
+fn normal_track_ignores_size_table_offsets_near_u32_max() {
+    let mut bytes = synthetic_trak();
+    // On 32-bit targets even the first size's end can overflow. On 64-bit these are out of bounds.
+    for offset in [u32::MAX - 7, u32::MAX - 3, u32::MAX - 1, u32::MAX] {
+        bytes[16..20].copy_from_slice(&offset.to_be_bytes());
+        assert!(normal_track(&bytes).is_empty(), "size table at {offset}");
+    }
+}
+
+#[test]
+fn normal_track_never_returns_a_partial_track_from_a_damaged_table() {
+    let mut bytes = synthetic_trak();
+    bytes.truncate(44); // Two values fit, but the third is missing.
+    assert!(normal_track(&bytes).is_empty());
+    let mut bytes = synthetic_trak();
+    bytes[26..28].copy_from_slice(&20u16.to_be_bytes());
+    bytes.truncate(36); // All values fit, but only two sizes do.
+    assert!(normal_track(&bytes).is_empty());
+}
+
 /// The tracking a font's `trak` table gives at a size (Apple's fonts carry one; the platform text
 /// engine applies it on its own), in pixels, interpolated between the sizes the table lists.
 #[test]

docs/roadmap.md

@@ -1,6 +1,6 @@
 # FigCraft roadmap: milestones and what's next
 
-> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-30 · **Change:** minor (a name typed for a variable or collection finds the one with that exact id before one named like it, and stored mode ids, font family variables and the panels' labels read exact ids (#1613); plugin widgets have hover styles: a layer's `hover` fill, stroke, opacity or text colour shows while the pointer is over it (gap 6); Shift+Cmd/Ctrl+Enter on a selected board shape adds the next shape already joined to it, and goes on typing (#1597); every file a command reads whole by path is a regular file within a cap that fits it: documents 16 GiB, placed images 256 MiB, CLI scripts 1 GiB; compact layer trees with fields and outline (M0.9, part of #996); while a drag only moves a large selection, its outlines, box, slots, spacing and Design panel values are worked out once and shifted, not rebuilt on every move (#1571); Shift+Cmd/Ctrl+Enter on a selected board shape adds the next shape already joined to it, and goes on typing (#1597); an imported or pasted file finds an installed family under the other names its fonts give it, and with other case and spacing, instead of reporting it missing (#1292); a panic in a grouped closure outside any command rolls the group back like a failed group: documents, selection, undo and redo, history limit and journal as before (#1085); a development example generates figcraft-cli's shell completions and man pages from its clap definitions (part of #1396); `.fig` ZIP image reads share a total byte budget and count skipped images in the import warnings (#1076); compact layer trees with fields and outline (M0.9, part of #996); stored variable and collection references keep their identity when another object is named like their id (follow-up to #1542); every file a command reads whole by path is a regular file within a cap that fits it: documents 16 GiB, placed images 256 MiB, CLI scripts 1 GiB; a component set's property rows fit the 240 px right panel: variant values wrap two to a line there and every + and − stays in view; the server key is checked by comparing SHA-256 hashes of the presented and the kept key, as the deployment guide says (#1130); opening a file contacts no team library server it names until you check it (#1097); a hostile server can no longer grow a client's memory with made-up people, and a session remembers a bounded number of deleted layer ids (#1121); `doc.list` gives AI agents and plugins the open files' names, not their paths (#1117); with a large selection, frames where nothing changed reuse the selection's outlines, box and slots and the Design panel's instance and position values instead of working them out again (#1571); team libraries and plugins larger than the 16 MiB download burst can be downloaded again, more slowly (#1089); a batch keeps one undo snapshot, not one per step (#1099); files nested 256 levels deep import on the browser's 1 MB stack (#1101); SVG and PDF exports count pattern sources and the renders they embed from the layer's depth, so one cap bounds a whole export (#1082); an explicit variables file path (`variable.import`, the `variables` of `file.open` and `file.import`) is refused past 256 MiB or when it isn't a regular file, as the sibling `variables.json` already was (part of #1114); joining and leaving a file nobody is editing reads and writes nothing on the server: it stays loaded a minute after everyone leaves (#1074); opening a `.figcraft` file unpacks at most 6 GiB in all (2 GiB in the browser), every area together (#1079); hovering the canvas hit-tests once per pointer move, not on every frame, and moving an auto layout frame no longer lays out its contents again on every move (#1571); `.fig` instance expansion no longer walks variable nodes for every instance or copies every outer override row into each nested instance (#1077); `comment.people` lists names that were only @mentioned, and `comment.next` and `comment.prompt` carry the mentions too (#1415); grid auto-placement looks for free cells a 64-bit word at a time and skips what blocks it, with the same placements (#1083); with the pen out, Enter or a double-click ends the path and edits the vector with the Move tool instead of drawing on (#1430); a recovery copy made while a version is previewed holds the file, not the version shown; a FigJam `.jam` file opens as a board (#1342); the Actions palette offers only commands that run from it, and no second row reading like a menu item: Place image opens the file dialog (#1574); share links can comment: a third access level beside edit and view, whose holder sees the file live and adds, replies to, reacts to and resolves comments but can't change the design; Preferences ▸ Scroll wheel zoom: a mouse wheel zooms the canvas about the pointer and Cmd/Ctrl+wheel scrolls (#1390); `comment.list {mentions}` lists only the threads that @mention a name (#1415); in the browser an internal error that stops the page keeps its unsaved files, which open Line truncated
+> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-30 · **Change:** minor (damaged font tracking table offsets are checked instead of wrapping on 32-bit targets, and font indexing makes its existing offset bounds explicit (#1125); a name typed for a variable or collection finds the one with that exact id before one named like it, and stored mode ids, font family variables and the panels' labels read exact ids (#1613); plugin widgets have hover styles: a layer's `hover` fill, stroke, opacity or text colour shows while the pointer is over it (gap 6); Shift+Cmd/Ctrl+Enter on a selected board shape adds the next shape already joined to it, and goes on typing (#1597); every file a command reads whole by path is a regular file within a cap that fits it: documents 16 GiB, placed images 256 MiB, CLI scripts 1 GiB; compact layer trees with fields and outline (M0.9, part of #996); while a drag only moves a large selection, its outlines, box, slots, spacing and Design panel values are worked out once and shifted, not rebuilt on every move (#1571); Shift+Cmd/Ctrl+Enter on a selected board shape adds the next shape already joined to it, and goes on typing (#1597); an imported or pasted file finds an installed family under the other names its fonts give it, and with other case and spacing, instead of reporting it missing (#1292); a panic in a grouped closure outside any command rolls the group back like a failed group: documents, selection, undo and redo, history limit and journal as before (#1085); a development example generates figcraft-cli's shell completions and man pages from its clap definitions (part of #1396); `.fig` ZIP image reads share a total byte budget and count skipped images in the import warnings (#1076); compact layer trees with fields and outline (M0.9, part of #996); stored variable and collection references keep their identity when another object is named like their id (follow-up to #1542); every file a command reads whole by path is a regular file within a cap that fits it: documents 16 GiB, placed images 256 MiB, CLI scripts 1 GiB; a component set's property rows fit the 240 px right panel: variant values wrap two to a line there and every + and − stays in view; the server key is checked by comparing SHA-256 hashes of the presented and the kept key, as the deployment guide says (#1130); opening a file contacts no team library server it names until you check it (#1097); a hostile server can no longer grow a client's memory with made-up people, and a session remembers a bounded number of deleted layer ids (#1121); `doc.list` gives AI agents and plugins the open files' names, not their paths (#1117); with a large selection, frames where nothing changed reuse the selection's outlines, box and slots and the Design panel's instance and position values instead of working them out again (#1571); team libraries and plugins larger than the 16 MiB download burst can be downloaded again, more slowly (#1089); a batch keeps one undo snapshot, not one per step (#1099); files nested 256 levels deep import on the browser's 1 MB stack (#1101); SVG and PDF exports count pattern sources and the renders they embed from the layer's depth, so one cap bounds a whole export (#1082); an explicit variables file path (`variable.import`, the `variables` of `file.open` and `file.import`) is refused past 256 MiB or when it isn't a regular file, as the sibling `variables.json` already was (part of #1114); joining and leaving a file nobody is editing reads and writes nothing on the server: it stays loaded a minute after everyone leaves (#1074); opening a `.figcraft` file unpacks at most 6 GiB in all (2 GiB in the browser), every area together (#1079); hovering the canvas hit-tests once per pointer move, not on every frame, and moving an auto layout frame no longer lays out its contents again on every move (#1571); `.fig` instance expansion no longer walks variable nodes for every instance or copies every outer override row into each nested instance (#1077); `comment.people` lists names that were only @mentioned, and `comment.next` and `comment.prompt` carry the mentions too (#1415); grid auto-placement looks for free cells a 64-bit word at a time and skips what blocks it, with the same placements (#1083); with the pen out, Enter or a double-click ends the path and edits the vector with the Move tool instead of drawing on (#1430); a recovery copy made while a version is previewed holds the file, not the version shown; a FigJam `.jam` file opens as a board (#1342); the Actions palette offers only commands that run from it, and no second row reading like a menu item: Place image opens the file dialog (#1574); share links can comment: a third access level beside edit and view, whose holder sees the file live and adds, replies to, reacts to and resolves comments but can't change the design; Preferences ▸ Scroll wheel zoom: a mouse wheel zooms the canvas about the pointer and Cmd/Ctrl+wheel scrolls (#1390); `comment.lisLine truncated
 
 Forward-looking plan. Where FigCraft stands today: [`ROADMAP.md`](../ROADMAP.md) and
 [`target-app-parity.md`](target-app-parity.md); the full ranked list: [`gaps.md`](gaps.md). Hours
@@ -57,7 +57,7 @@ blockers.
 | M5 Prototype & present | ~85% | media, controllers on macOS/Linux/FreeBSD, separate window | 2–5 |
 | M6 Interop & Dev Mode | ~65% (code connect, Dev Mode plugins and best-effort `.fig` import landed 2026-10-11; best-effort `.sketch` import 2026-10-21) | `.fig` import's tail, video/HEIC (animated GIFs and TIFF landed 2026-10-11), CMYK intent | 15–30 |
 | M7 Release & fidelity (signed builds, look & feel, shortcuts) | builds done; fidelity pass started | tool-by-tool pass | 40–60 |
-| M8 Hardening & performance (bench, retained canvas, accessibility, idle) | ~60% (`.fig` ZIP image reads bounded in total, #1076) (explicit variables files capped at 256 MiB 2026-10-30, part of #1114) | real-file corpus, platform QA, GPU canvas, screen readers | 60–110 |
+| M8 Hardening & performance (bench, retained canvas, accessibility, idle) | ~60% (damaged font tracking table offsets are checked instead of wrapping on 32-bit targets and existing font index bounds made explicit, #1125; `.fig` ZIP image reads bounded in total, #1076) (explicit variables files capped at 256 MiB 2026-10-30, part of #1114) | real-file corpus, platform QA, GPU canvas, screen readers | 60–110 |
 | M9 Real-time collaboration | core done (#103: ids, change sets, server ordering, convergence); live sessions (WebSocket transport with limits and reconnect, hosting from the app, invite links, document sync between apps, cursors, selections, avatars, follow, `collab.*` commands); per-user undo, rejection handling, offline queue and resuming after a reconnect; styles, variables, collections, modes and comments created in a session get ids from their creator's space; others' text carets and selections on the canvas; the browser client (joins desktop-hosted sessions); `figcraft://` links open the app and join (Windows registers per user; macOS and Linux packages declare the scheme); the standalone `figcraft-server` (persistence with compaction, restarts that lose nothing confirmed, publishing from the app, share links to edit or view, revocable); team libraries kept on the server and enabled by a share link, with usage counts, and swapping a library; `wss://` from the desktop app, server releases and a deployment guide; the server key compared by its hash (#1130) | accounts, teams | 45–90 |
 | M10 Localization | ~39%: the layer, English, Russian and Turkish reviewed by native speakers; Spanish (with a Latin American overlay), French, German, Brazilian Portuguese, Japanese, Korean, Simplified Chinese, Indonesian and Czech drafts; Arabic draft: 2,508 entries, native review and panel mirroring pending | native reviews (including the Arabic draft), Hindi, Vietnamese, Arabic panel mirroring, engine messages and number formatting ([localization-parity](localization-parity.md)) | 29–51 |
 | M11 Plugins | runtime, API, menu, manager and SDK done (#101); plugin panels and settings (ABI v2); widgets (API 3), panels side by side, colour picker on plugin fields; a plugin directory on `figcraft-server` (publish, browse, install, update); widget fields and property menus (API 4) | a public catalogue, publisher accounts and signatures, the directory in the browser, widget hover and timers; Figma plugin compatibility is an owner decision | 6–22 |
@@ -76,6 +76,7 @@ blockers.
 
 | Date | Change | Summary |
 |---|---|---|
+| 2026-10-30 | minor | M8, #1125: damaged `trak` size-table offsets are checked instead of wrapping on 32-bit targets; an incomplete normal track is dropped entirely, never returned in part. Font indexing makes its existing bounds explicit, still skipping damaged faces and reading later faces' name tables without reading outlines. Synthetic regression tests in `fontdb_tests.rs`. Numbers unchanged. |
 | 2026-10-30 | minor | M3, #1613 (after #1618): the rest of the stored-id work. `Variables::get` and `Variables::collection` take the variable or collection with that exact id before one named like it (as `find_mode` does), so typed ids in `variable.bind`, `variable.update`, aliases and the prototype action and expression input can't be taken by a renamed one. Stored mode ids go through the new `Collection::mode_by_id` (expression evaluation, display and type checks, the prototype's mode switch), font family variables read their stored ids exactly, and the colour picker, prototype editor and panels' labels (variables, prototype, selection colours, typography, style picker, assets, variable fields) read exact ids. Tests: `stored_ids_tests.rs` (exported aliases, deletion, Dev Inspect, expressions, mode switch, library import, interaction edits) and the doc crate's lookup test; #1618's expression test now expects the exact id to win. |
 | 2026-10-30 | minor | M6, gap 6: widget hover styles (`hover` on a widget layer: fill, stroke, opacity, text colour) shown while the pointer is over it, as a live preview; `widget.hover`. Tests: `widget_hover_tests` |
 | 2026-10-30 | minor | M6, gap 1: `.fig` elbowed and curved connectors without a saved path are routed like board connectors (shared `figcraft_doc::route_points`) instead of drawn straight. Tests: `fig::tests::tail` |