diff --git a/.claude/skills/find-missing-translations/SKILL.md b/.claude/skills/find-missing-translations/SKILL.md
index 3e195b7088..02a2a4b1ca 100644
--- a/.claude/skills/find-missing-translations/SKILL.md
+++ b/.claude/skills/find-missing-translations/SKILL.md
@@ -38,11 +38,17 @@ The default set of locales (unless the user specifies otherwise):
 
 | Locale | Language | Directory |
 |--------|----------|-----------|
-| `cs-rCZ` | Czech | `values-cs-rCZ` |
+| `cs` | Czech | `values-cs` |
 | `pt-rBR` | Brazilian Portuguese | `values-pt-rBR` |
 | `sv-rSE` | Swedish | `values-sv-rSE` |
 | `de-rDE` | German | `values-de-rDE` |
 
+> Czech was consolidated onto the base qualifier (PR #3461, 2026-07-03): a
+> `cs: cs` `languages_mapping` entry in `crowdin.yml` makes Crowdin export to
+> `values-cs`, and `values-cs-rCZ` no longer exists. The other locales still
+> use Crowdin's default region-qualified `androidCode` until they are
+> consolidated the same way — update this table as each one moves.
+
 ## Technique
 
 ### 1. Identify files
@@ -52,9 +58,9 @@ Default:  amethyst/src/main/res/values/strings.xml
 Target:   amethyst/src/main/res/values-<locale>/strings.xml
 ```
 
-### 2. Find missing keys using cs-rCZ as reference
+### 2. Find missing keys using cs as reference
 
-Always diff against `cs-rCZ` first — it is the most complete locale and serves as the reference. Any keys missing in `cs-rCZ` will also be missing in the other target locales.
+Always diff against `cs` first — it is the most complete locale and serves as the reference. Any keys missing in `cs` will also be missing in the other target locales.
 
 You MUST diff **both** `<string name=` AND `<plurals name=` — these are independent resource types and a key that is a `<plurals>` in the source will never appear in a `<string>` diff. Forgetting `<plurals>` is the most common silent failure of this skill (it misses things like `music_playlist_track_count`, `notification_count_more`, etc.).
 
@@ -65,7 +71,7 @@ comm -23 \
   <(grep '<string name=' amethyst/src/main/res/values/strings.xml \
     | grep -v 'translatable="false"' \
     | sed 's/.*name="\([^"]*\)".*/\1/' | sort) \
-  <(grep '<string name=' amethyst/src/main/res/values-cs-rCZ/strings.xml \
+  <(grep '<string name=' amethyst/src/main/res/values-cs/strings.xml \
     | sed 's/.*name="\([^"]*\)".*/\1/' | sort)
 
 # Plurals: a separate resource type — MUST be diffed independently
@@ -73,16 +79,16 @@ echo "=== missing <plurals> ==="
 comm -23 \
   <(grep '<plurals name=' amethyst/src/main/res/values/strings.xml \
     | sed 's/.*name="\([^"]*\)".*/\1/' | sort) \
-  <(grep '<plurals name=' amethyst/src/main/res/values-cs-rCZ/strings.xml \
+  <(grep '<plurals name=' amethyst/src/main/res/values-cs/strings.xml \
     | sed 's/.*name="\([^"]*\)".*/\1/' | sort)
 ```
 
 This gives two lists of missing key names — keep them separate; `<plurals>` translations need the per-locale CLDR category set (see Step 5 → "Plurals: handle with care").
 
-Crowdin can asymmetrically strip keys across locales (each translator independently chose source-identical for different keys), so **cs-rCZ is not a reliable upper bound**. Diff **every** target locale and union the results — don't assume the cs-rCZ set covers the others. A quick per-locale count is a useful sanity check against the Crowdin UI's "N untranslated":
+Crowdin can asymmetrically strip keys across locales (each translator independently chose source-identical for different keys), so **cs is not a reliable upper bound**. Diff **every** target locale and union the results — don't assume the cs set covers the others. A quick per-locale count is a useful sanity check against the Crowdin UI's "N untranslated":
 
 ```bash
-for locale in cs-rCZ de-rDE sv-rSE pt-rBR; do
+for locale in cs de-rDE sv-rSE pt-rBR; do
   ns=$(comm -23 \
     <(grep '<string name=' amethyst/src/main/res/values/strings.xml \
       | grep -v 'translatable="false"' | sed 's/.*name="\([^"]*\)".*/\1/' | sort) \
@@ -111,7 +117,7 @@ done < <(comm -23 \
   <(grep '<string name=' amethyst/src/main/res/values/strings.xml \
     | grep -v 'translatable="false"' \
     | sed 's/.*name="\([^"]*\)".*/\1/' | sort) \
-  <(grep '<string name=' amethyst/src/main/res/values-cs-rCZ/strings.xml \
+  <(grep '<string name=' amethyst/src/main/res/values-cs/strings.xml \
     | sed 's/.*name="\([^"]*\)".*/\1/' | sort))
 
 # Missing <plurals>: extract the multi-line block (opening tag through </plurals>)
@@ -124,7 +130,7 @@ while IFS= read -r key; do
 done < <(comm -23 \
   <(grep '<plurals name=' amethyst/src/main/res/values/strings.xml \
     | sed 's/.*name="\([^"]*\)".*/\1/' | sort) \
-  <(grep '<plurals name=' amethyst/src/main/res/values-cs-rCZ/strings.xml \
+  <(grep '<plurals name=' amethyst/src/main/res/values-cs/strings.xml \
     | sed 's/.*name="\([^"]*\)".*/\1/' | sort))
 ```
 
@@ -199,7 +205,7 @@ done < <(comm -23 \
   <(grep '<string name=' amethyst/src/main/res/values/strings.xml \
     | grep -v 'translatable="false"' \
     | sed 's/.*name="\([^"]*\)".*/\1/' | sort) \
-  <(grep '<string name=' amethyst/src/main/res/values-cs-rCZ/strings.xml \
+  <(grep '<string name=' amethyst/src/main/res/values-cs/strings.xml \
     | sed 's/.*name="\([^"]*\)".*/\1/' | sort))
 ```
 
@@ -261,7 +267,7 @@ When adding translated strings to locale files:
 - **Diffing only `<string name=`** — `<plurals>` is a separate resource type; a source `<plurals>` missing from a locale will never show up in a `<string>` diff. Always run the diff twice (once per resource type) as shown in Step 2. The same goes for `<string-array>` if the project uses it.
 - **Trusting a git "sync-timestamp" heuristic to pre-filter the list** — this skill used to skip keys added before the last `New Crowdin translations` commit, on the theory that Crowdin had already "decided" them. It was dropped: a key added shortly before an export that translators hadn't reached yet is genuinely missing, so the heuristic silently dropped real work. Use the raw on-disk diff and reconcile against the Crowdin web UI's untranslated count instead.
 - **Adding source-identical fallbacks locally** — they get overwritten on the next Crowdin sync. Android falls back to `values/strings.xml` at runtime anyway, so a key intentionally kept as English already renders correctly. Skip these by inspection (brand terms, loanwords, `v%1$s`-style strings); don't translate them to an identical value.
-- **Skipping per-locale diffs when only diffing cs-rCZ** — Crowdin can strip different keys in different locales (each translator's choice), so cs-rCZ is not a reliable upper bound. Diff each target locale and union the results.
+- **Skipping per-locale diffs when only diffing cs** — Crowdin can strip different keys in different locales (each translator's choice), so cs is not a reliable upper bound. Diff each target locale and union the results.
 - **Inserting strings in a specific position** — always append at the bottom; ordering is handled separately
 - **Hardcoding `"1"` in a `<plurals>` `quantity="one"` item** — always use the count placeholder; otherwise non-English `one` categories produce wrong text
 - **Copying English's `one`/`other` set into every locale** — each language must include all CLDR plural categories it uses (e.g. Czech needs `one`, `few`, `many`, `other`)