diff --git a/.editorconfig b/.editorconfig
index 50421b8..26d65d3 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -14,13 +14,17 @@ indent_size = 2
 indent_style = tab
 
 # Vendored/generated trees and never-edit upstream files: leave bytes alone.
+# This list is duplicated across .pre-commit-config.yaml, .typos.toml,
+# .gitleaks.toml, .editorconfig, and .github/scripts/check-hashes.sh —
+# update all together.
 [{fonts,stagit,migration,pubkeys}/**]
 insert_final_newline = false
 trim_trailing_whitespace = false
 
-# Binary and hashed image/icon assets anywhere in the tree: an editor save
+# Binary and hashed media assets anywhere in the tree: an editor save
 # must never alter their bytes — content-hashed filenames break otherwise
-# (favicon.<hash>.svg legitimately lacks a final newline).
-[*.{png,webp,svg,ico,woff2}]
+# (favicon.<hash>.svg legitimately lacks a final newline). Covers types
+# not present yet so a future asset starts protected; extend on new types.
+[*.{png,webp,svg,ico,woff2,jpg,jpeg,gif,avif,mp4,webm}]
 insert_final_newline = false
 trim_trailing_whitespace = false
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 69dec5e..402e9b4 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -1,9 +1,5 @@
 version: 2
 
-# The pre-commit ecosystem GA'd in March 2026, but some dependabot-core
-# paths still gate it behind this flag; harmless if unneeded.
-enable-beta-ecosystems: true
-
 updates:
   - package-ecosystem: github-actions
     directory: /
diff --git a/.github/scripts/check-hashes.sh b/.github/scripts/check-hashes.sh
index 9ca0979..4490a29 100755
--- a/.github/scripts/check-hashes.sh
+++ b/.github/scripts/check-hashes.sh
@@ -8,9 +8,14 @@
 #     discovered, not hardcoded, so renames cannot leave stale references
 #     behind; vendored trees are skipped (FONTLOG.txt holds historical
 #     commit-pinned permalinks that are valid but not present on disk);
-# (c) _header.html and errdocs/err.html agree on the hash tokens they
-#     reference (compared by basename, since the two files may legitimately
-#     use different path prefixes for the same asset).
+# (c) every tracked HTML template that references hashed assets agrees
+#     with the others on the tokens it references — templates are
+#     discovered, not hardcoded, so a new template cannot escape the
+#     check (compared by basename, since templates may legitimately use
+#     different path prefixes for the same asset);
+# (d) every tracked hashed asset is referenced by at least one tracked
+#     text file — otherwise it is orphaned: published with the site but
+#     reachable by nothing.
 #
 # Word-splitting over `git ls-files` output is safe here: tracked names in
 # this repo contain no whitespace.
@@ -25,6 +30,13 @@ fail() {
   status=1
 }
 
+# Vendored trees never count as reference sources: FONTLOG.txt holds
+# historical commit-pinned permalinks whose tokens are valid but stale.
+# This list is duplicated across .pre-commit-config.yaml, .typos.toml,
+# .gitleaks.toml, .editorconfig, and this script — update all together.
+# Word-split deliberately when passed to git.
+vendored_pathspecs=':!fonts/ :!stagit/ :!migration/ :!pubkeys/'
+
 # --- (a) filename hash matches content hash --------------------------------
 for f in $(git ls-files | grep -E '\.[0-9a-f]{64}\.' || true); do
   # Extract the hash by pattern, not positional dot-splitting: several
@@ -40,28 +52,55 @@ refs() {
   grep -oE '[A-Za-z0-9_/.-]*\.[0-9a-f]{64}\.[A-Za-z0-9.]+' "$1" | sort -u
 }
 
-for src in $(git grep -I -l -E '\.[0-9a-f]{64}\.' -- \
-  ':!fonts/' ':!stagit/' ':!migration/' ':!pubkeys/'); do
+# shellcheck disable=SC2086 # vendored_pathspecs must word-split
+for src in $(git grep -I -l -E '\.[0-9a-f]{64}\.' -- $vendored_pathspecs); do
   for ref in $(refs "$src"); do
     [ -f "${ref#/}" ] || fail "$src references missing asset: $ref"
   done
 done
 
-# --- (c) header and errdocs reference identical hash tokens ----------------
-for src in _header.html errdocs/err.html; do
-  [ -f "$src" ] || fail "expected template missing: $src"
+# --- (d) every tracked hashed asset is referenced somewhere ----------------
+# One grep collects every .<token>. occurrence in tracked text files; an
+# asset whose token never appears is orphaned. Reference chains satisfy
+# this naturally (fonts are reachable via the hashed stylesheets).
+# shellcheck disable=SC2086 # vendored_pathspecs must word-split
+referenced=$(git grep -I -h -oE '\.[0-9a-f]{64}\.' -- $vendored_pathspecs | sort -u)
+for f in $(git ls-files | grep -E '\.[0-9a-f]{64}\.' || true); do
+  tok=$(expr "$f" : '.*\.\([0-9a-f]\{64\}\)\.')
+  case "$referenced" in
+    *".$tok."*) ;;
+    *) fail "orphaned hashed asset (referenced by nothing): $f" ;;
+  esac
 done
 
+# --- (c) HTML templates reference identical hash tokens --------------------
 tokens() {
   refs "$1" | sed 's|.*/||' | sort -u
 }
 
-header_tokens=$(tokens _header.html)
-err_tokens=$(tokens errdocs/err.html)
-if [ "$header_tokens" != "$err_tokens" ]; then
-  fail '_header.html and errdocs/err.html disagree on hashed assets:'
-  printf '%s\n' '--- _header.html:' "$header_tokens" \
-    '--- errdocs/err.html:' "$err_tokens" >&2
-fi
+templates=$(git grep -I -l -E '\.[0-9a-f]{64}\.' -- '*.html' || true)
+
+# Guard against the check silently degrading: these two must always be in
+# the discovered set.
+for required in _header.html errdocs/err.html; do
+  printf '%s\n' "$templates" | grep -qx "$required" ||
+    fail "expected template missing from agreement check: $required"
+done
+
+base_file=''
+base_tokens=''
+for t in $templates; do
+  if [ -z "$base_file" ]; then
+    base_file=$t
+    base_tokens=$(tokens "$t")
+    continue
+  fi
+  t_tokens=$(tokens "$t")
+  if [ "$t_tokens" != "$base_tokens" ]; then
+    fail "$base_file and $t disagree on hashed assets:"
+    printf '%s\n' "--- $base_file:" "$base_tokens" \
+      "--- $t:" "$t_tokens" >&2
+  fi
+done
 
 exit "$status"
diff --git a/.github/scripts/gitleaks-push.sh b/.github/scripts/gitleaks-push.sh
new file mode 100755
index 0000000..6ac223c
--- /dev/null
+++ b/.github/scripts/gitleaks-push.sh
@@ -0,0 +1,24 @@
+#!/bin/sh
+# gitleaks-push.sh — secret scan for the pre-push hook.
+#
+# When pre-commit provides the pushed range (PRE_COMMIT_FROM_REF/TO_REF,
+# set at the pre-push stage), scan just those commits: anything older is
+# already public, so re-scanning ~1,100 commits on every push adds
+# latency, not protection. Without a range — CI's
+# `pre-commit run --all-files --hook-stage pre-push`, or a manual run —
+# fall back to full history, which keeps the exhaustive scan in CI.
+#
+# gitleaks comes from the hook's golang environment, which pre-commit
+# puts on PATH.
+
+set -eu
+
+from=${PRE_COMMIT_FROM_REF:-}
+to=${PRE_COMMIT_TO_REF:-}
+
+if [ -n "$from" ] && [ -n "$to" ] &&
+  git rev-parse --verify --quiet "$from^{commit}" > /dev/null; then
+  exec gitleaks git --redact --verbose --log-opts="$from..$to"
+fi
+
+exec gitleaks git --redact --verbose
diff --git a/.github/workflows/quality.yml b/.github/workflows/quality.yml
index 23b0964..05bcf16 100644
--- a/.github/workflows/quality.yml
+++ b/.github/workflows/quality.yml
@@ -27,7 +27,9 @@ jobs:
         with:
           path: ~/.cache/pre-commit
           key: pre-commit-${{ runner.os }}-${{ hashFiles('.pre-commit-config.yaml') }}
-      - run: pipx install pre-commit==4.6.0
+      # uv installs in ~1-3s where pipx takes 5-15s building a venv.
+      - uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
+      - run: uv tool install pre-commit==4.6.0
       - run: pre-commit run --all-files --show-diff-on-failure
       - run: pre-commit run --all-files --hook-stage pre-push
 
@@ -40,7 +42,8 @@ jobs:
       - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           persist-credentials: false
-      - run: pipx install zizmor==1.25.2
+      - uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
+      - run: uv tool install zizmor==1.25.2
       - run: zizmor --format=github .
         env:
           # Without a token zizmor silently skips its online audits
diff --git a/.gitleaks.toml b/.gitleaks.toml
index 8bbc891..c762c4d 100644
--- a/.gitleaks.toml
+++ b/.gitleaks.toml
@@ -3,6 +3,10 @@
 [extend]
 useDefault = true
 
+# The vendored-tree list is duplicated across .pre-commit-config.yaml,
+# .typos.toml, .gitleaks.toml, .editorconfig, and
+# .github/scripts/check-hashes.sh — update all together. fonts/ is
+# deliberately absent here: font binaries hold nothing secret-shaped.
 [[allowlists]]
 description = "Public keys, archived migration content, and stagit output are published on purpose"
 paths = [
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index d2c341d..f481fd4 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,11 @@
 # Quality gate for anthes.is. Hygiene fixers must never touch vendored
 # trees or content-hashed assets (editing one silently breaks its hash) —
 # the &generated anchor below excludes both.
+#
+# The vendored-tree list {fonts, stagit, migration, pubkeys} is duplicated
+# in each tool's own syntax across .pre-commit-config.yaml, .typos.toml,
+# .gitleaks.toml, .editorconfig, and .github/scripts/check-hashes.sh —
+# update all together.
 default_stages: [pre-commit]
 
 repos:
@@ -60,13 +65,19 @@ repos:
         entry: .github/scripts/check-hashes.sh
         language: script
         pass_filenames: false
-        always_run: true
+        # The check always covers the whole tree; this filter only decides
+        # when it runs: any change to a hashed asset or to a file type that
+        # references hashed assets (articles, templates, stylesheets,
+        # webmanifest). CI's --all-files run always triggers it.
+        files: '\.(md|html|css|webmanifest)$|\.[0-9a-f]{64}\.'
       # Local hook rather than the official one: upstream hardcodes
-      # --staged in its entry, which consumers cannot override, and this
-      # hook should scan full history at push time instead.
+      # --staged in its entry, which consumers cannot override. The wrapper
+      # scans only the pushed range locally and full history when no range
+      # is provided (CI's --hook-stage pre-push run, on a fetch-depth: 0
+      # checkout).
       - id: gitleaks
-        name: gitleaks (full history)
-        entry: gitleaks git --redact --verbose
+        name: gitleaks
+        entry: .github/scripts/gitleaks-push.sh
         language: golang
         additional_dependencies:
           # gitleaks still declares its Go module path under the old
diff --git a/.typos.toml b/.typos.toml
index ad2c578..e38fe45 100644
--- a/.typos.toml
+++ b/.typos.toml
@@ -1,4 +1,7 @@
 [files]
+# The vendored-tree list is duplicated across .pre-commit-config.yaml,
+# .typos.toml, .gitleaks.toml, .editorconfig, and
+# .github/scripts/check-hashes.sh — update all together.
 extend-exclude = [
   "stagit/",
   "migration/",
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