diff --git a/.devcontainer/init-setup.sh b/.devcontainer/init-setup.sh
index 9a96131ee5..f84c58ecb9 100644
--- a/.devcontainer/init-setup.sh
+++ b/.devcontainer/init-setup.sh
@@ -20,8 +20,8 @@ set -e
 # - To build the project, use:
 #     ./gradlew build
 #
-# - For running pre-commit hooks (if configured), use:
-#     pre-commit run --all-files
+# - To run the lint/format/secret checks, use:
+#     task pre-commit
 #
 # Make sure you are in the project root directory after this script executes.
 # =============================================================================
@@ -70,6 +70,6 @@ echo ""
 echo "  To build the project: "
 echo -e "\e[34m    gradle build\e[0m"
 echo ""
-echo "  To run pre-commit hooks (if configured):"
-echo -e "\e[34m    pre-commit run --all-files -c .pre-commit-config.yaml\e[0m"
+echo "  To run the lint/format/secret checks:"
+echo -e "\e[34m    task pre-commit\e[0m"
 echo "=================================================================="
diff --git a/.github/scripts/requirements_pre_commit.in b/.github/scripts/requirements_pre_commit.in
deleted file mode 100644
index 416634f528..0000000000
--- a/.github/scripts/requirements_pre_commit.in
+++ /dev/null
@@ -1 +0,0 @@
-pre-commit
diff --git a/.github/scripts/requirements_pre_commit.txt b/.github/scripts/requirements_pre_commit.txt
deleted file mode 100644
index a476a5268b..0000000000
--- a/.github/scripts/requirements_pre_commit.txt
+++ /dev/null
@@ -1,121 +0,0 @@
-#
-# This file is autogenerated by pip-compile with Python 3.12
-# by the following command:
-#
-#    pip-compile --generate-hashes --output-file='.github\scripts\requirements_pre_commit.txt' --strip-extras '.github\scripts\requirements_pre_commit.in'
-#
-cfgv==3.5.0 \
-    --hash=sha256:a8dc6b26ad22ff227d2634a65cb388215ce6cc96bbcc5cfde7641ae87e8dacc0 \
-    --hash=sha256:d5b1034354820651caa73ede66a6294d6e95c1b00acc5e9b098e917404669132
-    # via pre-commit
-distlib==0.4.0 \
-    --hash=sha256:9659f7d87e46584a30b5780e43ac7a2143098441670ff0a49d5f9034c54a6c16 \
-    --hash=sha256:feec40075be03a04501a973d81f633735b4b69f98b05450592310c0f401a4e0d
-    # via virtualenv
-filelock==3.29.0 \
-    --hash=sha256:69974355e960702e789734cb4871f884ea6fe50bd8404051a3530bc07809cf90 \
-    --hash=sha256:96f5f6344709aa1572bbf631c640e4ebeeb519e08da902c39a001882f30ac258
-    # via
-    #   python-discovery
-    #   virtualenv
-identify==2.6.19 \
-    --hash=sha256:20e6a87f786f768c092a721ad107fc9df0eb89347be9396cadf3f4abbd1fb78a \
-    --hash=sha256:6be5020c38fcb07da56c53733538a3081ea5aa70d36a156f83044bfbf9173842
-    # via pre-commit
-nodeenv==1.10.0 \
-    --hash=sha256:5bb13e3eed2923615535339b3c620e76779af4cb4c6a90deccc9e36b274d3827 \
-    --hash=sha256:996c191ad80897d076bdfba80a41994c2b47c68e224c542b48feba42ba00f8bb
-    # via pre-commit
-platformdirs==4.9.6 \
-    --hash=sha256:3bfa75b0ad0db84096ae777218481852c0ebc6c727b3168c1b9e0118e458cf0a \
-    --hash=sha256:e61adb1d5e5cb3441b4b7710bea7e4c12250ca49439228cc1021c00dcfac0917
-    # via
-    #   python-discovery
-    #   virtualenv
-pre-commit==4.6.0 \
-    --hash=sha256:718d2208cef53fdc38206e40524a6d4d9576d103eb16f0fec11c875e7716e9d9 \
-    --hash=sha256:e2cf246f7299edcabcf15f9b0571fdce06058527f0a06535068a86d38089f29b
-    # via -r .github/scripts/requirements_pre_commit.in
-python-discovery==1.2.2 \
-    --hash=sha256:876e9c57139eb757cb5878cbdd9ae5379e5d96266c99ef731119e04fffe533bb \
-    --hash=sha256:e1ae95d9af875e78f15e19aed0c6137ab1bb49c200f21f5061786490c9585c7a
-    # via virtualenv
-pyyaml==6.0.3 \
-    --hash=sha256:00c4bdeba853cc34e7dd471f16b4114f4162dc03e6b7afcc2128711f0eca823c \
-    --hash=sha256:0150219816b6a1fa26fb4699fb7daa9caf09eb1999f3b70fb6e786805e80375a \
-    --hash=sha256:02893d100e99e03eda1c8fd5c441d8c60103fd175728e23e431db1b589cf5ab3 \
-    --hash=sha256:02ea2dfa234451bbb8772601d7b8e426c2bfa197136796224e50e35a78777956 \
-    --hash=sha256:0f29edc409a6392443abf94b9cf89ce99889a1dd5376d94316ae5145dfedd5d6 \
-    --hash=sha256:10892704fc220243f5305762e276552a0395f7beb4dbf9b14ec8fd43b57f126c \
-    --hash=sha256:16249ee61e95f858e83976573de0f5b2893b3677ba71c9dd36b9cf8be9ac6d65 \
-    --hash=sha256:1d37d57ad971609cf3c53ba6a7e365e40660e3be0e5175fa9f2365a379d6095a \
-    --hash=sha256:1ebe39cb5fc479422b83de611d14e2c0d3bb2a18bbcb01f229ab3cfbd8fee7a0 \
-    --hash=sha256:214ed4befebe12df36bcc8bc2b64b396ca31be9304b8f59e25c11cf94a4c033b \
-    --hash=sha256:2283a07e2c21a2aa78d9c4442724ec1eb15f5e42a723b99cb3d822d48f5f7ad1 \
-    --hash=sha256:22ba7cfcad58ef3ecddc7ed1db3409af68d023b7f940da23c6c2a1890976eda6 \
-    --hash=sha256:27c0abcb4a5dac13684a37f76e701e054692a9b2d3064b70f5e4eb54810553d7 \
-    --hash=sha256:28c8d926f98f432f88adc23edf2e6d4921ac26fb084b028c733d01868d19007e \
-    --hash=sha256:2e71d11abed7344e42a8849600193d15b6def118602c4c176f748e4583246007 \
-    --hash=sha256:34d5fcd24b8445fadc33f9cf348c1047101756fd760b4dacb5c3e99755703310 \
-    --hash=sha256:37503bfbfc9d2c40b344d06b2199cf0e96e97957ab1c1b546fd4f87e53e5d3e4 \
-    --hash=sha256:3c5677e12444c15717b902a5798264fa7909e41153cdf9ef7ad571b704a63dd9 \
-    --hash=sha256:3ff07ec89bae51176c0549bc4c63aa6202991da2d9a6129d7aef7f1407d3f295 \
-    --hash=sha256:41715c910c881bc081f1e8872880d3c650acf13dfa8214bad49ed4cede7c34ea \
-    --hash=sha256:418cf3f2111bc80e0933b2cd8cd04f286338bb88bdc7bc8e6dd775ebde60b5e0 \
-    --hash=sha256:44edc647873928551a01e7a563d7452ccdebee747728c1080d881d68af7b997e \
-    --hash=sha256:4a2e8cebe2ff6ab7d1050ecd59c25d4c8bd7e6f400f5f82b96557ac0abafd0ac \
-    --hash=sha256:4ad1906908f2f5ae4e5a8ddfce73c320c2a1429ec52eafd27138b7f1cbe341c9 \
-    --hash=sha256:501a031947e3a9025ed4405a168e6ef5ae3126c59f90ce0cd6f2bfc477be31b7 \
-    --hash=sha256:5190d403f121660ce8d1d2c1bb2ef1bd05b5f68533fc5c2ea899bd15f4399b35 \
-    --hash=sha256:5498cd1645aa724a7c71c8f378eb29ebe23da2fc0d7a08071d89469bf1d2defb \
-    --hash=sha256:5cf4e27da7e3fbed4d6c3d8e797387aaad68102272f8f9752883bc32d61cb87b \
-    --hash=sha256:5e0b74767e5f8c593e8c9b5912019159ed0533c70051e9cce3e8b6aa699fcd69 \
-    --hash=sha256:5ed875a24292240029e4483f9d4a4b8a1ae08843b9c54f43fcc11e404532a8a5 \
-    --hash=sha256:5fcd34e47f6e0b794d17de1b4ff496c00986e1c83f7ab2fb8fcfe9616ff7477b \
-    --hash=sha256:5fdec68f91a0c6739b380c83b951e2c72ac0197ace422360e6d5a959d8d97b2c \
-    --hash=sha256:6344df0d5755a2c9a276d4473ae6b90647e216ab4757f8426893b5dd2ac3f369 \
-    --hash=sha256:64386e5e707d03a7e172c0701abfb7e10f0fb753ee1d773128192742712a98fd \
-    --hash=sha256:652cb6edd41e718550aad172851962662ff2681490a8a711af6a4d288dd96824 \
-    --hash=sha256:66291b10affd76d76f54fad28e22e51719ef9ba22b29e1d7d03d6777a9174198 \
-    --hash=sha256:66e1674c3ef6f541c35191caae2d429b967b99e02040f5ba928632d9a7f0f065 \
-    --hash=sha256:6adc77889b628398debc7b65c073bcb99c4a0237b248cacaf3fe8a557563ef6c \
-    --hash=sha256:79005a0d97d5ddabfeeea4cf676af11e647e41d81c9a7722a193022accdb6b7c \
-    --hash=sha256:7c6610def4f163542a622a73fb39f534f8c101d690126992300bf3207eab9764 \
-    --hash=sha256:7f047e29dcae44602496db43be01ad42fc6f1cc0d8cd6c83d342306c32270196 \
-    --hash=sha256:8098f252adfa6c80ab48096053f512f2321f0b998f98150cea9bd23d83e1467b \
-    --hash=sha256:850774a7879607d3a6f50d36d04f00ee69e7fc816450e5f7e58d7f17f1ae5c00 \
-    --hash=sha256:8d1fab6bb153a416f9aeb4b8763bc0f22a5586065f86f7664fc23339fc1c1fac \
-    --hash=sha256:8da9669d359f02c0b91ccc01cac4a67f16afec0dac22c2ad09f46bee0697eba8 \
-    --hash=sha256:8dc52c23056b9ddd46818a57b78404882310fb473d63f17b07d5c40421e47f8e \
-    --hash=sha256:9149cad251584d5fb4981be1ecde53a1ca46c891a79788c0df828d2f166bda28 \
-    --hash=sha256:93dda82c9c22deb0a405ea4dc5f2d0cda384168e466364dec6255b293923b2f3 \
-    --hash=sha256:96b533f0e99f6579b3d4d4995707cf36df9100d67e0c8303a0c55b27b5f99bc5 \
-    --hash=sha256:9c57bb8c96f6d1808c030b1687b9b5fb476abaa47f0db9c0101f5e9f394e97f4 \
-    --hash=sha256:9c7708761fccb9397fe64bbc0395abcae8c4bf7b0eac081e12b809bf47700d0b \
-    --hash=sha256:9f3bfb4965eb874431221a3ff3fdcddc7e74e3b07799e0e84ca4a0f867d449bf \
-    --hash=sha256:a33284e20b78bd4a18c8c2282d549d10bc8408a2a7ff57653c0cf0b9be0afce5 \
-    --hash=sha256:a80cb027f6b349846a3bf6d73b5e95e782175e52f22108cfa17876aaeff93702 \
-    --hash=sha256:b30236e45cf30d2b8e7b3e85881719e98507abed1011bf463a8fa23e9c3e98a8 \
-    --hash=sha256:b3bc83488de33889877a0f2543ade9f70c67d66d9ebb4ac959502e12de895788 \
-    --hash=sha256:b865addae83924361678b652338317d1bd7e79b1f4596f96b96c77a5a34b34da \
-    --hash=sha256:b8bb0864c5a28024fac8a632c443c87c5aa6f215c0b126c449ae1a150412f31d \
-    --hash=sha256:ba1cc08a7ccde2d2ec775841541641e4548226580ab850948cbfda66a1befcdc \
-    --hash=sha256:bdb2c67c6c1390b63c6ff89f210c8fd09d9a1217a465701eac7316313c915e4c \
-    --hash=sha256:c1ff362665ae507275af2853520967820d9124984e0f7466736aea23d8611fba \
-    --hash=sha256:c2514fceb77bc5e7a2f7adfaa1feb2fb311607c9cb518dbc378688ec73d8292f \
-    --hash=sha256:c3355370a2c156cffb25e876646f149d5d68f5e0a3ce86a5084dd0b64a994917 \
-    --hash=sha256:c458b6d084f9b935061bc36216e8a69a7e293a2f1e68bf956dcd9e6cbcd143f5 \
-    --hash=sha256:d0eae10f8159e8fdad514efdc92d74fd8d682c933a6dd088030f3834bc8e6b26 \
-    --hash=sha256:d76623373421df22fb4cf8817020cbb7ef15c725b9d5e45f17e189bfc384190f \
-    --hash=sha256:ebc55a14a21cb14062aa4162f906cd962b28e2e9ea38f9b4391244cd8de4ae0b \
-    --hash=sha256:eda16858a3cab07b80edaf74336ece1f986ba330fdb8ee0d6c0d68fe82bc96be \
-    --hash=sha256:ee2922902c45ae8ccada2c5b501ab86c36525b883eff4255313a253a3160861c \
-    --hash=sha256:efd7b85f94a6f21e4932043973a7ba2613b059c4a000551892ac9f1d11f5baf3 \
-    --hash=sha256:f7057c9a337546edc7973c0d3ba84ddcdf0daa14533c2065749c9075001090e6 \
-    --hash=sha256:fa160448684b4e94d80416c0fa4aac48967a969efe22931448d853ada8baf926 \
-    --hash=sha256:fc09d0aa354569bc501d4e787133afc08552722d3ab34836a80547331bb5d4a0
-    # via pre-commit
-virtualenv==21.2.4 \
-    --hash=sha256:29d21e941795206138d0f22f4e45ff7050e5da6c6472299fb7103318763861ac \
-    --hash=sha256:b294ef68192638004d72524ce7ef303e9d0cf5a44c95ce2e54a7500a6381cada
-    # via pre-commit
diff --git a/.github/workflows/pre_commit.yml b/.github/workflows/pre_commit.yml
index fe2d1b6877..85d2efa996 100644
--- a/.github/workflows/pre_commit.yml
+++ b/.github/workflows/pre_commit.yml
@@ -1,8 +1,7 @@
 name: Pre-commit
 
-# Runs `pre-commit run` for ruff / codespell / gitleaks / EOF / trailing-ws.
-# Called from build.yml on PRs and merge_group; also runnable on demand via
-# workflow_dispatch for manual local-equivalent linting.
+# Runs the repo-wide lint/format/secret checks via `task pre-commit`.
+# Called from build.yml on PRs and merge_group; also runnable on demand via workflow_dispatch.
 on:
   workflow_call:
   workflow_dispatch:
@@ -13,10 +12,6 @@ permissions:
 jobs:
   pre-commit:
     runs-on: ubuntu-latest
-    env:
-      # Prevents sdist builds → no tar extraction
-      PIP_ONLY_BINARY: ":all:"
-      PIP_DISABLE_PIP_VERSION_CHECK: "1"
     steps:
       - name: Harden Runner
         uses: step-security/harden-runner@ab7a9404c0f3da075243ca237b5fac12c98deaa5 # v2.19.3
@@ -29,23 +24,13 @@ jobs:
           fetch-depth: 0
           persist-credentials: false
 
-      - name: Set up Python
-        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+      - name: Install uv
+        uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
         with:
-          python-version: 3.12
-          cache: "pip" # caching pip dependencies
-          cache-dependency-path: ./.github/scripts/requirements_pre_commit.txt
+          enable-cache: true
 
-      - name: Run Pre-Commit Hooks
-        run: |
-          pip install --require-hashes --only-binary=:all: -r ./.github/scripts/requirements_pre_commit.txt
+      - name: Install Task
+        uses: go-task/setup-task@3be4020d41929789a01026e0e427a4321ce0ad44 # v2.0.0
 
-      - name: Run Pre-Commit
-        run: |
-          pre-commit run ruff --all-files -c .pre-commit-config.yaml
-          pre-commit run ruff-format --all-files -c .pre-commit-config.yaml
-          pre-commit run codespell --all-files -c .pre-commit-config.yaml
-          pre-commit run gitleaks --all-files -c .pre-commit-config.yaml
-          pre-commit run end-of-file-fixer --all-files -c .pre-commit-config.yaml
-          pre-commit run trailing-whitespace --all-files -c .pre-commit-config.yaml
-          git diff --exit-code
+      - name: Run pre-commit checks
+        run: task pre-commit
diff --git a/.github/workflows/sync_files_v2.yml b/.github/workflows/sync_files_v2.yml
index b91884c82e..4647442d4f 100644
--- a/.github/workflows/sync_files_v2.yml
+++ b/.github/workflows/sync_files_v2.yml
@@ -58,15 +58,23 @@ jobs:
 
       - name: Install Python dependencies
         run: |
-          pip install --require-hashes --only-binary=:all: -r ./.github/scripts/requirements_sync_readme.txt -r ./.github/scripts/requirements_pre_commit.txt
+          pip install --require-hashes --only-binary=:all: -r ./.github/scripts/requirements_sync_readme.txt
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b # v8.1.0
+        with:
+          enable-cache: true
+
+      - name: Install Task
+        uses: go-task/setup-task@3be4020d41929789a01026e0e427a4321ce0ad44 # v2.0.0
 
       - name: Sync translation TOML files
         run: |
           python .github/scripts/check_language_toml.py --reference-file "frontend/editor/public/locales/en-US/translation.toml" --branch main
 
-      - name: pre-commit run
+      - name: Sort translation TOML files
         run: |
-          pre-commit run toml-sort-fix --all-files
+          task pre-commit:toml-sort FIX=1
 
       - name: Commit translation files
         run: |
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 2490b4ae6e..83753a9263 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,52 +1,14 @@
+# The actual checks live in .taskfiles/pre-commit.yml (with helper scripts under
+# scripts/pre-commit/) and are driven by Task. This hook just delegates to `task
+# pre-commit` so the git pre-commit hook, CI and a manual `task pre-commit` all
+# run the exact same thing. Requires `task` and `uv` on PATH. To auto-fix instead
+# of only checking, run `task pre-commit:fix`.
 repos:
-  - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.15.14
+  - repo: local
     hooks:
-      - id: ruff
-        args:
-          - --fix
-          - --line-length=127
-        files: ^((\.github/scripts|scripts|app/core/src/main/resources/static/python)/.+)?[^/]+\.py$
-        exclude: (split_photos.py)
-      - id: ruff-format
-        files: ^((\.github/scripts|scripts|app/core/src/main/resources/static/python)/.+)?[^/]+\.py$
-        exclude: (split_photos.py)
-  - repo: https://github.com/codespell-project/codespell
-    rev: v2.4.2
-    hooks:
-      - id: codespell
-        args:
-          - --ignore-words-list=thirdParty,tabEl,tabEls,Sie,ist,fulfilment
-          - --skip="./.*,*.csv,*.json,*.ambr"
-          - --quiet-level=2
-        files: \.(html|css|js|py|md)$
-        exclude: (.vscode|.devcontainer|app/core/src/main/resources|app/proprietary/src/main/resources|frontend/editor/public/vendor|Dockerfile|.*/pdfjs.*|.*/thirdParty.*|bootstrap.*|.*\.min\..*|.*diff\.js)
-  - repo: https://github.com/gitleaks/gitleaks
-    rev: v8.30.0
-    hooks:
-      - id: gitleaks
-  - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v6.0.0
-    hooks:
-      - id: end-of-file-fixer
-        files: ^.*(\.js|\.java|\.py|\.yml)$
-        exclude: ^(.*/pdfjs.*|.*/thirdParty.*|bootstrap.*|.*\.min\..*|.*diff\.js|\.github/workflows/.*$)
-      - id: trailing-whitespace
-        files: ^.*(\.js|\.java|\.py|\.yml)$
-        exclude: ^(.*/pdfjs.*|.*/thirdParty.*|bootstrap.*|.*\.min\..*|.*diff\.js|\.github/workflows/.*$)
-  - repo: https://github.com/pappasam/toml-sort
-    rev: v0.24.4
-    hooks:
-      - id: toml-sort-fix
-        files: frontend/editor/public/locales/.*\.toml$
-        args: ['--in-place', '--all', '--ignore-case']
-  # - repo: https://github.com/thibaudcolas/pre-commit-stylelint
-  #   rev: v16.21.1
-  #   hooks:
-  #     - id: stylelint
-  #       additional_dependencies:
-  #         - stylelint@16.21.1
-  #         - stylelint-config-standard@38.0.0
-  #         - "@stylistic/stylelint-plugin@3.1.3"
-  #       files: \.(css)$
-  #       args: [--fix]
+      - id: task-pre-commit
+        name: task pre-commit
+        entry: task pre-commit
+        language: system
+        pass_filenames: false
+        always_run: true
diff --git a/.taskfiles/pre-commit.yml b/.taskfiles/pre-commit.yml
new file mode 100644
index 0000000000..63fdd9ea01
--- /dev/null
+++ b/.taskfiles/pre-commit.yml
@@ -0,0 +1,159 @@
+version: '3'
+
+# Repo-wide lint/format/secret checks - the single source of truth that the git
+# pre-commit hook (.pre-commit-config.yaml) and CI (pre_commit.yml) both call.
+
+vars:
+  GITLEAKS: '8.30.0'
+
+  # File selections as git pathspecs: git does the include/exclude matching, so
+  # there is no grep/xargs and it behaves identically on every platform.
+  PY_FILES: >-
+    'scripts/*.py'
+    '.github/scripts/*.py'
+    'app/core/src/main/resources/static/python/*.py'
+    ':(exclude)*split_photos.py'
+  SPELL_FILES: >-
+    '*.html'
+    '*.css'
+    '*.js'
+    '*.py'
+    '*.md'
+    ':(exclude).vscode/*'
+    ':(exclude).devcontainer/*'
+    ':(exclude)app/core/src/main/resources/*'
+    ':(exclude)app/proprietary/src/main/resources/*'
+    ':(exclude)frontend/editor/public/vendor/*'
+    ':(exclude)*Dockerfile*'
+    ':(exclude)*pdfjs*'
+    ':(exclude)*thirdParty*'
+    ':(exclude)*bootstrap*'
+    ':(exclude)*.min.*'
+    ':(exclude)*diff.js'
+  WS_FILES: >-
+    '*.js'
+    '*.java'
+    '*.py'
+    '*.yml'
+    ':(exclude)*pdfjs*'
+    ':(exclude)*thirdParty*'
+    ':(exclude)*bootstrap*'
+    ':(exclude)*.min.*'
+    ':(exclude)*diff.js'
+    ':(exclude).github/workflows/*'
+  LOCALE_TOML: 'frontend/editor/public/locales/*/translation.toml'
+
+  GITLEAKS_BIN: '.task/bin/gitleaks-{{.GITLEAKS}}{{if eq OS "windows"}}.exe{{end}}'
+
+tasks:
+  default:
+    desc: "Check formatting, spelling, and secrets across the repo"
+    cmds:
+      - task: ruff
+      - task: ruff-format
+      - task: codespell
+      - task: gitleaks
+      - task: whitespace
+      - task: toml-sort
+
+  fix:
+    desc: "Auto-fix formatting, spelling, and secrets issues across the repo"
+    cmds:
+      # Auto-fixers first, then the report-only tools (codespell, gitleaks) so a
+      # finding there does not stop the fixers from running.
+      - task: ruff
+        vars: { FIX: '1' }
+      - task: ruff-format
+        vars: { FIX: '1' }
+      - task: whitespace
+        vars: { FIX: '1' }
+      - task: toml-sort
+        vars: { FIX: '1' }
+      - task: codespell
+      - task: gitleaks
+
+  install:
+    desc: "Install the pinned pre-commit Python tools (ruff, codespell, toml-sort)"
+    run: once
+    cmds:
+      - uv sync --project scripts/pre-commit --locked
+    sources:
+      - scripts/pre-commit/uv.lock
+      - scripts/pre-commit/pyproject.toml
+    status:
+      - test -d scripts/pre-commit/.venv
+
+  clean:
+    desc: "Remove the cache/build artifacts"
+    cmds:
+      - task: '{{if eq OS "windows"}}clean-windows{{else}}clean-unix{{end}}'
+
+  clean-unix:
+    internal: true
+    cmds:
+      - rm -rf scripts/pre-commit/.venv .task/bin/gitleaks-*
+
+  # On Windows, use PowerShell so it matches the same paths and tolerates absent
+  # files without erroring.
+  clean-windows:
+    internal: true
+    ignore_error: true
+    cmds:
+      - powershell -NoProfile -Command "Remove-Item -Recurse -Force -ErrorAction SilentlyContinue scripts/pre-commit/.venv, .task/bin/gitleaks-*"
+
+  # Individual checks (hidden from `task --list`, but callable, e.g.
+  # `task pre-commit:toml-sort FIX=1`). Pass FIX=1 to auto-fix where supported.
+  ruff:
+    deps: [install]
+    cmds:
+      - uv run --project scripts/pre-commit --no-sync ruff check --line-length=127 {{if .FIX}}--fix {{end}}$(git ls-files {{.PY_FILES}})
+
+  ruff-format:
+    deps: [install]
+    cmds:
+      - uv run --project scripts/pre-commit --no-sync ruff format {{if .FIX}}{{else}}--check {{end}}$(git ls-files {{.PY_FILES}})
+
+  codespell:
+    deps: [install]
+    cmds:
+      - uv run --project scripts/pre-commit --no-sync codespell --ignore-words-list=thirdParty,tabEl,tabEls,Sie,ist,fulfilment --quiet-level=2 $(git ls-files {{.SPELL_FILES}})
+
+  toml-sort:
+    deps: [install]
+    cmds:
+      - uv run --project scripts/pre-commit --no-sync toml-sort --all --ignore-case {{if .FIX}}--in-place{{else}}--check{{end}} {{.LOCALE_TOML}}
+
+  whitespace:
+    cmds:
+      - uv run --no-project python scripts/pre-commit/whitespace.py {{if .FIX}}--fix {{end}}$(git ls-files {{.WS_FILES}})
+
+  gitleaks:
+    deps: [gitleaks-bin]
+    # Scan staged changes only, matching the old hook: the git-mode fingerprints
+    # in .gitleaksignore (file:rule:line) still apply, and with nothing staged
+    # this is a no-op. Secrets are never auto-fixed, so FIX has no effect.
+    cmds:
+      - "{{.GITLEAKS_BIN}} git --pre-commit --redact --staged --verbose"
+
+  gitleaks-bin:
+    internal: true
+    desc: "Ensure the pinned gitleaks binary is cached in .task/bin"
+    status:
+      - test -f {{.GITLEAKS_BIN}}
+    vars:
+      GL_ARCH: '{{if eq ARCH "amd64"}}x64{{else if eq ARCH "arm64"}}arm64{{else if eq ARCH "386"}}x32{{else}}{{ARCH}}{{end}}'
+      GL_PLATFORM: '{{OS}}_{{.GL_ARCH}}'
+      GL_URL: 'https://github.com/gitleaks/gitleaks/releases/download/v{{.GITLEAKS}}/gitleaks_{{.GITLEAKS}}_{{.GL_PLATFORM}}'
+      # SHA-256 of each release asset, from gitleaks_{{.GITLEAKS}}_checksums.txt.
+      GL_SHA: >-
+        {{if eq .GL_PLATFORM "linux_x64"}}79a3ab579b53f71efd634f3aaf7e04a0fa0cf206b7ed434638d1547a2470a66e
+        {{- else if eq .GL_PLATFORM "linux_arm64"}}b4cbbb6ddf7d1b2a603088cd03a4e3f7ce48ee7fd449b51f7de6ee2906f5fa2f
+        {{- else if eq .GL_PLATFORM "darwin_x64"}}ca221d012d247080c2f6f61f4b7a83bffa2453806b0c195c795bbe9a8c775ed5
+        {{- else if eq .GL_PLATFORM "darwin_arm64"}}b251ab2bcd4cd8ba9e56ff37698c033ebf38582b477d21ebd86586d927cf87e7
+        {{- else if eq .GL_PLATFORM "windows_x64"}}54fe94f644b832dd08e8c3a5915efb3bfa862386d59fb27ca0792cb687a83573
+        {{- end}}
+    cmds:
+      - cmd: bash scripts/pre-commit/install-gitleaks.sh "{{.GL_URL}}.tar.gz" "{{.GL_SHA}}" "{{.GITLEAKS_BIN}}"
+        platforms: [linux, darwin]
+      - cmd: powershell -NoProfile -File scripts/pre-commit/install-gitleaks.ps1 -Url "{{.GL_URL}}.zip" -Sha "{{.GL_SHA}}" -Dest "{{.GITLEAKS_BIN}}"
+        platforms: [windows]
diff --git a/Taskfile.yml b/Taskfile.yml
index a12d455352..0b25cf7aa6 100644
--- a/Taskfile.yml
+++ b/Taskfile.yml
@@ -25,6 +25,9 @@ includes:
   e2e:
     taskfile: .taskfiles/e2e.yml
     dir: .
+  pre-commit:
+    taskfile: .taskfiles/pre-commit.yml
+    dir: .
 
 tasks:
   # ============================================================
@@ -174,3 +177,4 @@ tasks:
       - task: backend:clean
       - task: frontend:clean
       - task: engine:clean
+      - task: pre-commit:clean
diff --git a/scripts/generate_requirements.bat b/scripts/generate_requirements.bat
index eeed0ba2c6..94cea30b3f 100644
--- a/scripts/generate_requirements.bat
+++ b/scripts/generate_requirements.bat
@@ -34,11 +34,6 @@ pip-compile --allow-unsafe --generate-hashes --upgrade --strip-extras ^
   --output-file=".github\scripts\requirements_dev.txt" ^
   ".github\scripts\requirements_dev.in"
 
-echo Generating .github\scripts\requirements_pre_commit.txt
-pip-compile --generate-hashes --upgrade --strip-extras ^
-  --output-file=".github\scripts\requirements_pre_commit.txt" ^
-  ".github\scripts\requirements_pre_commit.in"
-
 echo Generating .github\scripts\requirements_sync_readme.txt
 pip-compile --generate-hashes --upgrade --strip-extras ^
   --output-file=".github\scripts\requirements_sync_readme.txt" ^
diff --git a/scripts/pre-commit/install-gitleaks.ps1 b/scripts/pre-commit/install-gitleaks.ps1
new file mode 100644
index 0000000000..ec554bb6cb
--- /dev/null
+++ b/scripts/pre-commit/install-gitleaks.ps1
@@ -0,0 +1,31 @@
+# Download, checksum-verify and extract the gitleaks binary.
+#
+# Usage: install-gitleaks.ps1 -Url <url> -Sha <sha256> -Dest <dest>
+#
+# Called by the pre-commit:gitleaks-bin Task target, which owns the pinned
+# version and per-platform checksums and passes the resolved values in.
+param(
+    [Parameter(Mandatory)] [string]$Url,
+    [Parameter(Mandatory)] [string]$Sha,
+    [Parameter(Mandatory)] [string]$Dest
+)
+$ErrorActionPreference = 'Stop'
+
+if (-not $Sha) {
+    throw 'No pinned gitleaks checksum for this platform'
+}
+
+New-Item -ItemType Directory -Force -Path (Split-Path -Parent $Dest) | Out-Null
+
+$archive = New-TemporaryFile
+$extract = Join-Path $env:TEMP 'gitleaks-extract'
+try {
+    Invoke-WebRequest -Uri $Url -OutFile $archive
+    if ((Get-FileHash $archive -Algorithm SHA256).Hash -ne $Sha) {
+        throw 'gitleaks checksum mismatch'
+    }
+    Expand-Archive -Force -Path $archive -DestinationPath $extract
+    Move-Item -Force -Path (Join-Path $extract 'gitleaks.exe') -Destination $Dest
+} finally {
+    Remove-Item -Force -ErrorAction SilentlyContinue $archive, $extract -Recurse
+}
diff --git a/scripts/pre-commit/install-gitleaks.sh b/scripts/pre-commit/install-gitleaks.sh
new file mode 100644
index 0000000000..efafc88f56
--- /dev/null
+++ b/scripts/pre-commit/install-gitleaks.sh
@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+# Download, checksum-verify and extract the gitleaks binary.
+#
+# Usage: install-gitleaks.sh <url> <sha256> <dest>
+#
+# Called by the pre-commit:gitleaks-bin Task target, which owns the pinned
+# version and per-platform checksums and passes the resolved values in.
+set -euo pipefail
+
+url=$1
+sha=$2
+dest=$3
+
+if [ -z "$sha" ]; then
+  echo "No pinned gitleaks checksum for this platform" >&2
+  exit 1
+fi
+
+mkdir -p "$(dirname "$dest")"
+archive=$(mktemp)
+trap 'rm -f "$archive"' EXIT
+
+curl -fsSL "$url" -o "$archive"
+actual=$(shasum -a 256 "$archive" | awk '{print $1}')
+if [ "$actual" != "$sha" ]; then
+  echo "gitleaks checksum mismatch: expected $sha, got $actual" >&2
+  exit 1
+fi
+tar -xzO -f "$archive" gitleaks > "$dest"
+chmod +x "$dest"
diff --git a/scripts/pre-commit/pyproject.toml b/scripts/pre-commit/pyproject.toml
new file mode 100644
index 0000000000..cd13b56f5e
--- /dev/null
+++ b/scripts/pre-commit/pyproject.toml
@@ -0,0 +1,16 @@
+# Pinned Python lint/format tools for `task pre-commit`. uv.lock locks these
+# plus their transitive dependencies by hash, so `uv run --project
+# scripts/pre-commit --locked <tool>` is reproducible and integrity-checked.
+# This is not a packaged project - it only exists to lock the tooling.
+[project]
+name = "stirling-precommit-tools"
+version = "0"
+requires-python = ">=3.11"
+dependencies = [
+    "ruff==0.15.14",
+    "codespell==2.4.2",
+    "toml-sort==0.24.4",
+]
+
+[tool.uv]
+package = false
diff --git a/scripts/pre-commit/uv.lock b/scripts/pre-commit/uv.lock
new file mode 100644
index 0000000000..b90593a6e8
--- /dev/null
+++ b/scripts/pre-commit/uv.lock
@@ -0,0 +1,75 @@
+version = 1
+revision = 3
+requires-python = ">=3.11"
+
+[[package]]
+name = "codespell"
+version = "2.4.2"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/2d/9d/1d0903dff693160f893ca6abcabad545088e7a2ee0a6deae7c24e958be69/codespell-2.4.2.tar.gz", hash = "sha256:3c33be9ae34543807f088aeb4832dfad8cb2dae38da61cac0a7045dd376cfdf3", size = 352058, upload-time = "2026-03-05T18:10:42.936Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/42/a1/52fa05533e95fe45bcc09bcf8a503874b1c08f221a4e35608017e0938f55/codespell-2.4.2-py3-none-any.whl", hash = "sha256:97e0c1060cf46bd1d5db89a936c98db8c2b804e1fdd4b5c645e82a1ec6b1f886", size = 353715, upload-time = "2026-03-05T18:10:41.398Z" },
+]
+
+[[package]]
+name = "ruff"
+version = "0.15.14"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/dc/8a/8bce2894573e9dae6ff4d77fe34ad727d79b9e6238ad288c5638990d90f6/ruff-0.15.14.tar.gz", hash = "sha256:48e866b165be4a9bdbf310f7d3c9a07edef2fe8cd63ffeb4e00bb590506ebf9f", size = 4700910, upload-time = "2026-05-21T14:34:55.177Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/b9/c8/74a92c6ff9fcfb4f1f947126d3ebee8389276e161ecc85de5bda7cda51bd/ruff-0.15.14-py3-none-linux_armv6l.whl", hash = "sha256:8dd2db9416e487c8d4b01fa7056bb02c4d05969d4f8d17a08c229c2f4ff3c108", size = 10739177, upload-time = "2026-05-21T14:34:37.332Z" },
+    { url = "https://files.pythonhosted.org/packages/45/91/254a35c20acc38a7223c9d2d594af12e794432464f2cdeb52af1dc4a892d/ruff-0.15.14-py3-none-macosx_10_12_x86_64.whl", hash = "sha256:be4ff55af755bd71a00ab3dc6bd7ffc467bd76e0df6881e286c2e3d23e8fb43b", size = 11144969, upload-time = "2026-05-21T14:34:43.978Z" },
+    { url = "https://files.pythonhosted.org/packages/56/9e/d13e40f83b8d0a94430e6778ce1d94a43b38cf2efe63278bdd2b4c65abbf/ruff-0.15.14-py3-none-macosx_11_0_arm64.whl", hash = "sha256:48d5909d7d06276ce7dde6d32bfa4b0d4cb2651145cd8ee4b440722cbc77832f", size = 10478207, upload-time = "2026-05-21T14:34:48.378Z" },
+    { url = "https://files.pythonhosted.org/packages/8d/f1/b15a7839fa4f332f8acec78e20564f26bb2d866e3d21710b877fd0263000/ruff-0.15.14-py3-none-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:ca8cbfa94c4f90984a67561978602746d4cd27103568f745fa90eee3f0d4107d", size = 10818459, upload-time = "2026-05-21T14:34:22.318Z" },
+    { url = "https://files.pythonhosted.org/packages/45/33/53d651177f84f94b400a0e27f8824eeada3dddc9d5ee8aeb048f4352a520/ruff-0.15.14-py3-none-manylinux_2_17_armv7l.manylinux2014_armv7l.whl", hash = "sha256:9a6bbc0333f1ab053423bcbf6226477d266ca7cec7738c4c8e3f55647803f3c4", size = 10541800, upload-time = "2026-05-21T14:34:20.209Z" },
+    { url = "https://files.pythonhosted.org/packages/b8/a6/868f87e0bf9786ed24b5d0d0ad8676b8a94fd1912f42cddf9cfc7857818a/ruff-0.15.14-py3-none-manylinux_2_17_i686.manylinux2014_i686.whl", hash = "sha256:8a24a4f7605d7003a6674d4387651effd939dead3fddd0f36561eb77a9a2e542", size = 11342149, upload-time = "2026-05-21T14:34:46.365Z" },
+    { url = "https://files.pythonhosted.org/packages/a7/8b/38cd5c19faffdcc05a408d2b78edccc69492ab9720eadb49ea15ef80d768/ruff-0.15.14-py3-none-manylinux_2_17_ppc64le.manylinux2014_ppc64le.whl", hash = "sha256:049b5326e53ed80978f2fc041a280603f69dd6b0c95464342a2bb4572d9d9e2f", size = 12212563, upload-time = "2026-05-21T14:34:28.579Z" },
+    { url = "https://files.pythonhosted.org/packages/3e/4d/a3c5b874a556d5731e3e657aaf04311bb76f0a5c3ec220ed43051be6b64b/ruff-0.15.14-py3-none-manylinux_2_17_s390x.manylinux2014_s390x.whl", hash = "sha256:d4ed42e6696c8dfa5f06728e6441993901f548eb92d73bc472cb5a38d1395fbf", size = 11493299, upload-time = "2026-05-21T14:34:41.836Z" },
+    { url = "https://files.pythonhosted.org/packages/1e/c0/56472c251d09858a53e51efbd485b09e1995d8731668b76d52e5dd6ee0f1/ruff-0.15.14-py3-none-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:715c543cf450c4888251f91c52f1942a800541d9bddd7ac060aa4e6b77ae7cba", size = 11455931, upload-time = "2026-05-21T14:34:57.276Z" },
+    { url = "https://files.pythonhosted.org/packages/2c/4a/e2e7b4d8dbf233d4eace59c75bc3435fa6d8bd3bae82d351d4e4300c0fd1/ruff-0.15.14-py3-none-manylinux_2_31_riscv64.whl", hash = "sha256:72ebab6013ec887d439d8b7593737a0a4ffb06d45d209d4e4bf2e92813082d3f", size = 11400794, upload-time = "2026-05-21T14:34:39.773Z" },
+    { url = "https://files.pythonhosted.org/packages/97/c7/83c0539fe34c3e09136204d1e75d6052492364e0b3cb05e9465423f567d7/ruff-0.15.14-py3-none-musllinux_1_2_aarch64.whl", hash = "sha256:49072d36abdbe97a8dd7f480afe9c675699c0c495d4c84076e2c1203c4550581", size = 10804759, upload-time = "2026-05-21T14:34:31.045Z" },
+    { url = "https://files.pythonhosted.org/packages/86/a6/18f2bfc095a2ab4a78745644e428205532ce6653a5d0fa8501572891534d/ruff-0.15.14-py3-none-musllinux_1_2_armv7l.whl", hash = "sha256:958522aee105068640c2c2ceae08f413ae44d922f52a1374ac13d6a96032fc93", size = 10539517, upload-time = "2026-05-21T14:34:53.064Z" },
+    { url = "https://files.pythonhosted.org/packages/54/3a/5a8b3b69c654d4e4bf1d246ac5b49cbcdac6eaab6905925f8915f31e3b80/ruff-0.15.14-py3-none-musllinux_1_2_i686.whl", hash = "sha256:f3707da619a143a2e8830e2abab8224478d69ace2d28cb6c20543ae97c36bf61", size = 11065169, upload-time = "2026-05-21T14:34:24.484Z" },
+    { url = "https://files.pythonhosted.org/packages/ed/c5/8864e4e7925b836ea354b31d57641ec03830564e281a8b6f061f8c3e0ec1/ruff-0.15.14-py3-none-musllinux_1_2_x86_64.whl", hash = "sha256:bb01d645694e3ec0102105d07ef2d53703970407d59c04e59d3ba0b7a1d53553", size = 11560214, upload-time = "2026-05-21T14:34:50.975Z" },
+    { url = "https://files.pythonhosted.org/packages/36/38/012bf76752e1f89ed50b77b99532d90f3a3e287bc7918e1fc0948ac866ac/ruff-0.15.14-py3-none-win32.whl", hash = "sha256:6d0c1ad2a0ab718d39b6d8fd2217981ce4d625cd96a720095f798fb47d8b13e6", size = 10805548, upload-time = "2026-05-21T14:34:33.453Z" },
+    { url = "https://files.pythonhosted.org/packages/d1/b7/4ea2c170f10ad760fff2a5250beb18897719dc8b52b53a24cddbb9dd3f19/ruff-0.15.14-py3-none-win_amd64.whl", hash = "sha256:802342981e056db3851a7836e5b070f8f15f67d4a685ae2a6160939d364b2902", size = 11939523, upload-time = "2026-05-21T14:34:18.077Z" },
+    { url = "https://files.pythonhosted.org/packages/62/d5/bc97ff895ec35cf3925d4bd60f3b39d822f377a446906ec9bcc87405e59b/ruff-0.15.14-py3-none-win_arm64.whl", hash = "sha256:ff47b90a9ef6a40c9e2f3b479c1fb78531adf055b94c1eba0a7ba04b31951826", size = 11208607, upload-time = "2026-05-21T14:34:26.525Z" },
+]
+
+[[package]]
+name = "stirling-precommit-tools"
+version = "0"
+source = { virtual = "." }
+dependencies = [
+    { name = "codespell" },
+    { name = "ruff" },
+    { name = "toml-sort" },
+]
+
+[package.metadata]
+requires-dist = [
+    { name = "codespell", specifier = "==2.4.2" },
+    { name = "ruff", specifier = "==0.15.14" },
+    { name = "toml-sort", specifier = "==0.24.4" },
+]
+
+[[package]]
+name = "toml-sort"
+version = "0.24.4"
+source = { registry = "https://pypi.org/simple" }
+dependencies = [
+    { name = "tomlkit" },
+]
+sdist = { url = "https://files.pythonhosted.org/packages/47/c5/d6f650fdcf8e1f83096815fa67fb13a9a345b99da6015c60c4b7e4a8ea2b/toml_sort-0.24.4.tar.gz", hash = "sha256:429b69f5b98b7047a11380c80ecf0838556bdea1a8902d0be564961c48841423", size = 17793, upload-time = "2026-03-24T14:05:53.637Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/0f/5a/1f0e54df4eacf0f4d8f94ba50cf72be33d2a3f04babdfb1931bead48a0ab/toml_sort-0.24.4-py3-none-any.whl", hash = "sha256:125aa5fb94f33c542c6901040456145dd38f79bbb310b56b436a93057d30a739", size = 16577, upload-time = "2026-03-24T14:05:54.757Z" },
+]
+
+[[package]]
+name = "tomlkit"
+version = "0.15.0"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/51/db/03eaf4331631ef6b27d6e3c9b68c54dc6f0d63d87201fed600cc409307fd/tomlkit-0.15.0.tar.gz", hash = "sha256:7d1a9ecba3086638211b13814ea79c90dd54dd11993564376f3aa92271f5c7a3", size = 161875, upload-time = "2026-05-10T07:38:22.245Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/6a/43/8bd850ee71a191bf072e31302c73a66be413fecdd98fdcd111ecbcce13ca/tomlkit-0.15.0-py3-none-any.whl", hash = "sha256:4dbc8f0fc024412b57ced8757ac7461305126a648ff8c2c807fcb8e133a78738", size = 41328, upload-time = "2026-05-10T07:38:23.517Z" },
+]
diff --git a/scripts/pre-commit/whitespace.py b/scripts/pre-commit/whitespace.py
new file mode 100644
index 0000000000..df77d3728d
--- /dev/null
+++ b/scripts/pre-commit/whitespace.py
@@ -0,0 +1,60 @@
+#!/usr/bin/env python3
+"""Trailing-whitespace and end-of-file normalisation, driven by Task.
+
+Replaces the end-of-file-fixer / trailing-whitespace pre-commit hooks, which
+have no read-only mode. Run via `task pre-commit` (check) and `task
+pre-commit:fix`; Task selects the files (with `git ls-files`) and passes them
+as arguments.
+
+    python scripts/whitespace.py <files>...          # check: report, exit 1 if any need fixing
+    python scripts/whitespace.py --fix <files>...     # fix: rewrite in place
+
+Operates on bytes and only ever touches trailing spaces/tabs and the final
+newline, so it never mangles content or line endings. Binary files (those with
+a NUL byte) are skipped.
+"""
+
+from __future__ import annotations
+
+import sys
+from pathlib import Path
+
+
+def normalise(data: bytes) -> bytes:
+    # Strip trailing spaces/tabs from each line (leave \r so CRLF survives).
+    lines = [line.rstrip(b" \t") for line in data.split(b"\n")]
+    body = b"\n".join(lines)
+    # Ensure a non-empty file ends with exactly one newline.
+    stripped = body.rstrip(b"\r\n")
+    return stripped + b"\n" if stripped else body
+
+
+def main() -> int:
+    args = sys.argv[1:]
+    fix = "--fix" in args
+    paths = [a for a in args if a != "--fix"]
+
+    offenders: list[str] = []
+    for path in paths:
+        data = Path(path).read_bytes()
+        if b"\0" in data:
+            continue
+        fixed = normalise(data)
+        if fixed == data:
+            continue
+        offenders.append(path)
+        if fix:
+            Path(path).write_bytes(fixed)
+
+    if offenders and not fix:
+        print(f"{len(offenders)} file(s) need whitespace fixing:")
+        for path in offenders:
+            print(f"  {path}")
+        return 1
+    if offenders and fix:
+        print(f"Fixed whitespace in {len(offenders)} file(s).")
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())