diff --git a/after/queries/yaml/injections.scm b/after/queries/yaml/injections.scm
new file mode 100644
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+++ b/after/queries/yaml/injections.scm
@@ -0,0 +1,212 @@
+; extends
+;
+; ~/.config/nvim/after/queries/yaml/injections.scm
+;
+; Neovim >= 0.10 (@injection.filename). La ligne "; extends" doit rester la
+; PREMIÈRE ligne : sans elle ce fichier n'est pas fusionné avec les
+; injections de nvim-treesitter (il est ignoré, ou les remplace).
+;
+; Un (block_scalar) contient son en-tête (`|`, `|-`, `>+`...). #offset!
+; saute cet en-tête, d'où 2 variantes par règle : en-tête de 1 caractère
+; (`|`, `>`) ou de 2 (`|-`, `|+`, `>-`, `|2`...). Les en-têtes plus longs
+; (`|2-`) ou suivis d'un commentaire ne sont volontairement pas injectés
+; (le contenu reste une simple chaîne plutôt qu'un arbre en erreur).
+
+; ---------------------------------------------------------------------------
+; 1. Clés « nom de fichier » à valeur multi-ligne
+;    ConfigMap / Secret stringData / values Helm / templates ExternalSecret...
+;
+;      config.json: |     -> json          nginx.conf: |      -> nginx
+;      app.toml: |-       -> toml          "values.yaml": |   -> yaml
+;      entrypoint.sh: |   -> bash (*)      .dockerconfigjson: | -> json
+;
+;    Le langage est déduit par vim.filetype.match() sur le nom de la clé :
+;    toute extension connue de Neovim marche si le parser est installé.
+;    (*) ft `sh` -> parser `bash` : mapping fourni par nvim-treesitter,
+;        sinon : vim.treesitter.language.register('bash', 'sh')
+; ---------------------------------------------------------------------------
+
+(block_mapping_pair
+  key: (flow_node) @injection.filename
+  value: (block_node
+    (block_scalar) @injection.content)
+  (#lua-match? @injection.filename "^[\"']?[%w_.-]*%.%w+[\"']?$")
+  (#lua-match? @injection.content "^[|>]%s*\n")
+  (#gsub! @injection.filename "^[\"']?(.-)[\"']?$" "%1")
+  (#gsub! @injection.filename "^%.dockerconfigjson$" "dockerconfig.json")
+  (#offset! @injection.content 0 1 0 0))
+
+(block_mapping_pair
+  key: (flow_node) @injection.filename
+  value: (block_node
+    (block_scalar) @injection.content)
+  (#lua-match? @injection.filename "^[\"']?[%w_.-]*%.%w+[\"']?$")
+  (#lua-match? @injection.content "^[|>][-+1-9]%s*\n")
+  (#gsub! @injection.filename "^[\"']?(.-)[\"']?$" "%1")
+  (#gsub! @injection.filename "^%.dockerconfigjson$" "dockerconfig.json")
+  (#offset! @injection.content 0 2 0 0))
+
+; ---------------------------------------------------------------------------
+; 2. Patches Kustomize -> yaml (JSON6902 en JSON inclus : JSON ⊂ YAML)
+;
+;    - Flux Kustomization        .spec.patches[].patch
+;    - Flux HelmRelease          .spec.postRenderers[].kustomize.patches[].patch
+;    - kustomization.yaml        .patches[].patch / .patchesJson6902[].patch
+;
+;    spec:
+;      patches:
+;        - patch: |-
+;            apiVersion: apps/v1
+;            ...
+;          target:
+;            kind: Deployment
+; ---------------------------------------------------------------------------
+
+(block_mapping_pair
+  key: (flow_node) @_patches
+  value: (block_node
+    (block_sequence
+      (block_sequence_item
+        (block_node
+          (block_mapping
+            (block_mapping_pair
+              key: (flow_node) @_patch
+              value: (block_node
+                (block_scalar) @injection.content)))))))
+  (#any-of? @_patches "patches" "patchesJson6902")
+  (#eq? @_patch "patch")
+  (#lua-match? @injection.content "^[|>]%s*\n")
+  (#set! injection.language "yaml")
+  (#offset! @injection.content 0 1 0 0))
+
+(block_mapping_pair
+  key: (flow_node) @_patches
+  value: (block_node
+    (block_sequence
+      (block_sequence_item
+        (block_node
+          (block_mapping
+            (block_mapping_pair
+              key: (flow_node) @_patch
+              value: (block_node
+                (block_scalar) @injection.content)))))))
+  (#any-of? @_patches "patches" "patchesJson6902")
+  (#eq? @_patch "patch")
+  (#lua-match? @injection.content "^[|>][-+1-9]%s*\n")
+  (#set! injection.language "yaml")
+  (#offset! @injection.content 0 2 0 0))
+
+; Variante en ligne : patch: '[{"op": "remove", "path": "/spec/replicas"}]'
+(block_mapping_pair
+  key: (flow_node) @_patches
+  value: (block_node
+    (block_sequence
+      (block_sequence_item
+        (block_node
+          (block_mapping
+            (block_mapping_pair
+              key: (flow_node) @_patch
+              value: (flow_node
+                [
+                  (single_quote_scalar)
+                  (double_quote_scalar)
+                ] @injection.content)))))))
+  (#any-of? @_patches "patches" "patchesJson6902")
+  (#eq? @_patch "patch")
+  (#set! injection.language "yaml")
+  (#offset! @injection.content 0 1 0 -1))
+
+; ---------------------------------------------------------------------------
+; 3. Patch JSON6902 générique op/path/value, quand path == "/spec/patches"
+;    (n'importe quelle valeur pour op : add, replace, remove...) :
+;
+;      - op: replace
+;        path: "/spec/patches"
+;        value:
+;          - target:
+;              kind: HelmRelease
+;            patch: |-
+;              apiVersion: helm.toolkit.fluxcd.io/v2
+;              ...
+; ---------------------------------------------------------------------------
+
+(block_mapping
+  (block_mapping_pair
+    key: (flow_node) @_op)
+  (block_mapping_pair
+    key: (flow_node) @_path
+    value: (flow_node) @_path_value)
+  (block_mapping_pair
+    key: (flow_node) @_value
+    value: (block_node
+      (block_sequence
+        (block_sequence_item
+          (block_node
+            (block_mapping
+              (block_mapping_pair
+                key: (flow_node) @_patch
+                value: (block_node
+                  (block_scalar) @injection.content))))))))
+  (#eq? @_op "op")
+  (#eq? @_path "path")
+  (#eq? @_value "value")
+  (#eq? @_patch "patch")
+  (#lua-match? @_path_value "^[\"']?/spec/patches[\"']?$")
+  (#lua-match? @injection.content "^[|>]%s*\n")
+  (#set! injection.language "yaml")
+  (#offset! @injection.content 0 1 0 0))
+
+(block_mapping
+  (block_mapping_pair
+    key: (flow_node) @_op)
+  (block_mapping_pair
+    key: (flow_node) @_path
+    value: (flow_node) @_path_value)
+  (block_mapping_pair
+    key: (flow_node) @_value
+    value: (block_node
+      (block_sequence
+        (block_sequence_item
+          (block_node
+            (block_mapping
+              (block_mapping_pair
+                key: (flow_node) @_patch
+                value: (block_node
+                  (block_scalar) @injection.content))))))))
+  (#eq? @_op "op")
+  (#eq? @_path "path")
+  (#eq? @_value "value")
+  (#eq? @_patch "patch")
+  (#lua-match? @_path_value "^[\"']?/spec/patches[\"']?$")
+  (#lua-match? @injection.content "^[|>][-+1-9]%s*\n")
+  (#set! injection.language "yaml")
+  (#offset! @injection.content 0 2 0 0))
+
+; Variante en ligne : patch: '[{"op": "remove", "path": "/spec/replicas"}]'
+(block_mapping
+  (block_mapping_pair
+    key: (flow_node) @_op)
+  (block_mapping_pair
+    key: (flow_node) @_path
+    value: (flow_node) @_path_value)
+  (block_mapping_pair
+    key: (flow_node) @_value
+    value: (block_node
+      (block_sequence
+        (block_sequence_item
+          (block_node
+            (block_mapping
+              (block_mapping_pair
+                key: (flow_node) @_patch
+                value: (flow_node
+                  [
+                    (single_quote_scalar)
+                    (double_quote_scalar)
+                  ] @injection.content))))))))
+  (#eq? @_op "op")
+  (#eq? @_path "path")
+  (#eq? @_value "value")
+  (#eq? @_patch "patch")
+  (#lua-match? @_path_value "^[\"']?/spec/patches[\"']?$")
+  (#set! injection.language "yaml")
+  (#offset! @injection.content 0 1 0 -1))