diff --git a/Cargo.toml b/Cargo.toml
index 2e4dbfc..79b0560 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -218,9 +218,8 @@ tree-sitter-yaml = "0.7"
 # maintenance status — pick the upstream one.
 tree-sitter-md = "0.5"
 # LaTeX / TeX (`.tex`/`.latex`/`.sty`/`.cls`) — the "basic LaTeX mode"
-# foothold and the tier-1 detection substrate for inline math
-# (`docs/inline-math-framing.md`; lane framing
-# `docs/latex-grammar-math-substrate-framing.md`). The canonical crate name
+# foothold and the tier-1 detection substrate for the inline-math arc (lane
+# framing `docs/latex-grammar-math-substrate-framing.md`). The canonical crate name
 # `tree-sitter-latex` is squatted by a broken 0.1.0 repackage that ships no
 # `scanner.c` for its declared external tokens and therefore CANNOT LINK
 # (undefined `tree_sitter_latex_external_scanner_*`). `codebook-tree-sitter-latex`
diff --git a/docs/latex-grammar-math-substrate-framing.md b/docs/latex-grammar-math-substrate-framing.md
index 689a298..d27e73b 100644
--- a/docs/latex-grammar-math-substrate-framing.md
+++ b/docs/latex-grammar-math-substrate-framing.md
@@ -9,8 +9,11 @@ in-flight-lane snapshot; rev 3 folds in two provenance-wording corrections —
 the fork-vs-upstream attribution and the now-discharged provenance diff — and
 relaxes the `Cargo.toml` sequencing note. See §0.1 for the changelog.
 
-Parent arc: `docs/inline-math-framing.md`. That note frames the full
-four-tier inline-math renderer; its Tier 4 (GPU render) lands on
+Parent arc: `docs/inline-math-framing.md` — currently an **untracked,
+desktop-only framing** not yet committed to the repo, so this path will not
+resolve on a fresh clone; committing it as its own docs PR (or listing it in
+the handoff's machine-local doc inventory) is a tracked follow-up. That note
+frames the full four-tier inline-math renderer; its Tier 4 (GPU render) lands on
 `pmacs-gpu/src/main.rs`, the render path that folding and any future math
 draw pass also contend for. **This lane deliberately carves out only the
 frontend-agnostic, conflict-free substrate** — the parts that can land now,