diff --git a/.prettierrc b/.prettierrc
new file mode 100644
index 0000000..9402e22
--- /dev/null
+++ b/.prettierrc
@@ -0,0 +1,16 @@
+{
+    "printWidth": 80,
+    "tabWidth": 4,
+    "singleQuote": false,
+    "trailingComma": "es5",
+    "semi": false,
+    "newline-before-return": true,
+    "no-duplicate-variable": [true, "check-parameters"],
+    "no-var-keyword": true,
+
+    "svelteSortOrder": "scripts-styles-markup",
+    "svelteStrictMode": true,
+    "svelteBracketNewLine": true,
+    "svelteAllowShorthand": true,
+    "svelteIndentScriptAndStyle": true
+}
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..3d2cefc
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,9 @@
+{
+    "yaml.customTags": ["!include scalar"],
+    "yaml.schemas": {
+        "schemas/api-config/config.json": "demo-api/config.y*ml",
+        "schemas/api-config/collection.json": "demo-api/collections/*.y*ml",
+        "schemas/api-config/field.json": "demo-api/collections/fields/*.y*ml"
+    },
+    "editor.formatOnSave": true
+}
\ No newline at end of file
diff --git a/demo-api/collections/fields/testfield.yml b/demo-api/collections/fields/testfield.yml
new file mode 100644
index 0000000..c47ee99
--- /dev/null
+++ b/demo-api/collections/fields/testfield.yml
@@ -0,0 +1,6 @@
+name: testfield
+type: string
+meta:
+  label:
+    de: test
+  
\ No newline at end of file
diff --git a/demo-api/collections/global/test-permissions.yml b/demo-api/collections/global/test-permissions.yml
new file mode 100644
index 0000000..1d6e6d2
--- /dev/null
+++ b/demo-api/collections/global/test-permissions.yml
@@ -0,0 +1,22 @@
+# yaml-language-server: $schema=../../../schemas/api-config/permissions.json
+
+public:
+  methods:
+    get: true
+    post: false
+    put: false
+    delete: false
+
+user:
+  methods:
+    get: true
+    post: true
+    put: true
+    delete: true
+
+token:abc:
+  methods:
+    get: true
+    post: true
+    put: true
+    delete: true
\ No newline at end of file
diff --git a/demo-api/collections/mycol.yml b/demo-api/collections/mycol.yml
index 4d2a1c8..3cf4f89 100644
--- a/demo-api/collections/mycol.yml
+++ b/demo-api/collections/mycol.yml
@@ -9,19 +9,8 @@ meta:
       columns:
         - title
 
-permissions:
-  public:
-    methods:
-      get: true
-      post: false
-      put: false
-      delete: false
-  user:
-    methods:
-      get: true
-      post: true
-      put: false
-      delete: false
+permissions: !include global/test-permissions.yml
+
 
 hooks:
   get:
diff --git a/schemas/api-config/collection.json b/schemas/api-config/collection.json
new file mode 100644
index 0000000..8d89e2d
--- /dev/null
+++ b/schemas/api-config/collection.json
@@ -0,0 +1,187 @@
+{
+    "$schema": "http://json-schema.org/draft-07/schema#",
+    "title": "JSON Schema WMBasic collection configuration",
+    "description": "WMBasic collection linter",
+    "type": "object",
+    "additionalProperties": false,
+    "properties": {
+        "name": {
+            "type": "string",
+            "description": "collection name, part of api path"
+        },
+        "uploadPath": {
+            "type": "string",
+            "description": "relative to config.yml, path for file uploads"
+        },
+        "meta": {
+            "type": "object",
+            "description": "meta object used for admin ui configuration",
+            "additionalProperties": true,
+            "properties": {
+                "label": {
+                    "$ref": "field.json#/definitions/i18nString"
+                },
+                "muiIcon": {
+                    "type": "string",
+                    "description": "material ui icon name"
+                },
+                "rowIdentTpl": {
+                    "description": "template which evaluates to short string to identify entry in pe. select boxes",
+                    "$ref": "field.json#/definitions/evalExpressions"
+                },
+                "defaultSort": {
+                    "type": "object",
+                    "description": "default sort in admin ui lists",
+                    "additionalProperties": false,
+                    "properties": {
+                        "field": {
+                            "$ref": "field.json#/definitions/fieldSource"
+                        },
+                        "order": {
+                            "description": "sort order",
+                            "enum": ["ASC", "DESC"]
+                        }
+                    }
+                },
+                "views": {
+                    "type": "array",
+                    "description": "list views",
+                    "items": {
+                        "type": "object",
+                        "properties": {
+                            "mediaQuery": {
+                                "type": "string",
+                                "description": "css media query to select this view in ui"
+                            }
+                        },
+                        "oneOf": [
+                            {
+                                "properties": {
+                                    "type": {
+                                        "const": "simpleList"
+                                    },
+                                    "primaryText": {
+                                        "oneOf": [
+                                            {
+                                                "$ref": "field.json#/definitions/fieldSource"
+                                            },
+                                            {
+                                                "$ref": "field.json#/definitions/evalExpressions"
+                                            }
+                                        ]
+                                    },
+                                    "secondaryText": {
+                                        "oneOf": [
+                                            {
+                                                "$ref": "field.json#/definitions/fieldSource"
+                                            },
+                                            {
+                                                "$ref": "field.json#/definitions/evalExpressions"
+                                            }
+                                        ]
+                                    },
+                                    "tertiaryText": {
+                                        "oneOf": [
+                                            {
+                                                "$ref": "field.json#/definitions/fieldSource"
+                                            },
+                                            {
+                                                "$ref": "field.json#/definitions/evalExpressions"
+                                            }
+                                        ]
+                                    }
+                                },
+                                "required": ["type", "primaryText"]
+                            },
+                            {
+                                "properties": {
+                                    "type": {
+                                        "const": "table"
+                                    },
+                                    "columns": {
+                                        "type": "array",
+                                        "items": {
+                                            "oneOf": [
+                                                {
+                                                    "anyOf": [
+                                                        {
+                                                            "$ref": "field.json#/definitions/fieldSource"
+                                                        },
+                                                        {
+                                                            "type": "object",
+                                                            "properties": {
+                                                                "label": {
+                                                                    "$ref": "field.json#/definitions/i18nString"
+                                                                }
+                                                            }
+                                                        }
+                                                    ]
+                                                },
+                                                {
+                                                    "allOf": [
+                                                        {
+                                                            "$ref": "field.json#/definitions/evalExpressions"
+                                                        },
+                                                        {
+                                                            "properties": {
+                                                                "label": {
+                                                                    "$ref": "field.json#/definitions/i18nString"
+                                                                }
+                                                            }
+                                                        }
+                                                    ]
+                                                }
+                                            ]
+                                        },
+                                        "minItems": 1
+                                    }
+                                },
+                                "required": ["type", "columns"]
+                            }
+                        ],
+                        "required": ["type"]
+                    }
+                }
+            }
+        },
+        "projections": {
+            "oneOf": [
+                { "$comment": "for include tag", "type": "string" },
+                { "$ref": "projections.json" }
+            ]
+        },
+        "permissions": {
+            "oneOf": [
+                { "$comment": "for include tag", "type": "string" },
+                { "$ref": "permissions.json" }
+            ]
+        },
+        "hooks": {
+            "oneOf": [
+                { "$comment": "for include tag", "type": "string" },
+                { "$ref": "hooks.json" }
+            ]
+        },
+        "imageFilter": {
+            "oneOf": [
+                { "$comment": "for include tag", "type": "string" },
+                { "$ref": "imageFilter.json" }
+            ]
+        },
+        "fields": {
+            "type": "array",
+            "description": "fields of collection",
+            "items": {
+                "oneOf": [
+                    {
+                        "$comment": "for include tag"
+                    },
+                    {
+                        "$ref": "field.json"
+                    }
+                ]
+            }
+        }
+    },
+    "required": ["name", "permissions"]
+}
diff --git a/schemas/api-config/config.json b/schemas/api-config/config.json
new file mode 100644
index 0000000..674e305
--- /dev/null
+++ b/schemas/api-config/config.json
@@ -0,0 +1,40 @@
+{
+    "$schema": "http://json-schema.org/draft-07/schema#",
+    "title": "JSON Schema WMBasic config file",
+    "description": "WMBasic config.yml linter",
+    "type": "object",
+    "additionalProperties": false,
+    "properties": {
+        "namespace": {
+            "type": "string",
+            "description": "suffix for mongo db database and part of api url, can be overwritten in database project settings"
+        },
+        "meta": {
+            "type": "object",
+            "description": "meta object used for admin ui configuration",
+            "additionalProperties": true,
+            "properties": {
+                "imageUrl": {
+                    "type": "string",
+                    "description": "project's teaser image url shown in admin ui"
+                }
+            }
+        },
+        "collections": {
+            "oneOf": [
+                {
+                    "$comment": "for include tag",
+                    "type": "string"
+                },
+                {
+                    "type": "array",
+                    "description": "list of collections in this project",
+                    "items": {
+                        "$ref": "collection.json"
+                    }
+                }
+            ]
+        }
+    },
+    "required": ["namespace"]
+}
diff --git a/schemas/api-config/field.json b/schemas/api-config/field.json
new file mode 100644
index 0000000..ce81b27
--- /dev/null
+++ b/schemas/api-config/field.json
@@ -0,0 +1,194 @@
+{
+    "$schema": "http://json-schema.org/draft-07/schema#",
+    "title": "JSON Schema WMBasic field configuration",
+    "description": "WMBasic field linter",
+    "type": "object",
+    "additionalProperties": false,
+    "properties": {
+        "name": {
+            "type": "string",
+            "description": "name of field",
+            "pattern": "^[0-9a-zA-Z_]+$"
+        },
+        "type": {
+            "enum": [
+                "string",
+                "string[]",
+                "number",
+                "number[]",
+                "boolean",
+                "object",
+                "object[]",
+                "any"
+            ]
+        },
+        "index": {
+            "type": "array",
+            "items": {
+                "enum": ["single", "unique", "text"]
+            }
+        },
+        "subFields": {
+            "type": "array",
+            "description": "sub fields of object",
+            "items": {
+                "$ref": "#"
+            }
+        },
+        "meta": {
+            "type": "object",
+            "description": "meta object of field",
+            "properties": {
+                "label": {
+                    "$ref": "#/definitions/i18nString"
+                },
+                "helperText": {
+                    "$ref": "#/definitions/i18nString"
+                },
+                "widget": {
+                    "description": "ui widget",
+                    "enum": [
+                        "richtext",
+                        "richText",
+                        "html",
+                        "checkbox",
+                        "select",
+                        "selectArray",
+                        "date",
+                        "file",
+                        "image"
+                    ]
+                },
+                "choices": {
+                    "type": "array",
+                    "description": "choices to select from",
+                    "items": {
+                        "type": "object",
+                        "properties": {
+                            "name": {
+                                "description": "name is human readable value",
+                                "$ref": "#/definitions/i18nString"
+                            },
+                            "chipStyle": {
+                                "$ref": "https://raw.githubusercontent.com/rcorp/css-schema/master/schema.json"
+                            }
+                        },
+                        "oneOf": [
+                            {
+                                "properties": {
+                                    "id": {
+                                        "type": "number"
+                                    }
+                                }
+                            },
+                            {
+                                "properties": {
+                                    "id": {
+                                        "type": "string"
+                                    }
+                                }
+                            }
+                        ],
+                        "required": ["id", "name"]
+                    }
+                },
+                "valueMap": {
+                    "type": "object",
+                    "description": "map values to icons",
+                    "patternProperties": {
+                        ".*": {
+                            "oneOf": [
+                                {
+                                    "type": "string"
+                                },
+                                {
+                                    "type": "object",
+                                    "properties": {
+                                        "muiIcon": {
+                                            "type": "string"
+                                        },
+                                        "style": {
+                                            "$ref": "https://raw.githubusercontent.com/rcorp/css-schema/master/schema.json"
+                                        }
+                                    }
+                                }
+                            ]
+                        }
+                    }
+                }
+            }
+        }
+    },
+    "required": ["name", "type"],
+    "definitions": {
+        "i18nString": {
+            "oneOf": [
+                {
+                    "type": "object",
+                    "patternProperties": {
+                        "^[a-z]$": {
+                            "type": "string"
+                        }
+                    }
+                },
+                {
+                    "type": "string"
+                }
+            ]
+        },
+        "evalExpressions": {
+            "oneOf": [
+                {
+                    "type": "object",
+                    "additionalProperties": true,
+                    "properties": {
+                        "twig": {
+                            "type": "string",
+                            "description": "twig template"
+                        },
+                        "projection": {
+                            "type": "string",
+                            "description": "query projection to use"
+                        }
+                    },
+                    "required": ["twig"]
+                },
+                {
+                    "type": "object",
+                    "additionalProperties": true,
+                    "properties": {
+                        "eval": {
+                            "type": "string",
+                            "description": "javascript code"
+                        },
+                        "projection": {
+                            "type": "string",
+                            "description": "query projection to use"
+                        }
+                    },
+                    "required": ["eval"]
+                }
+            ]
+        },
+        "fieldSource": {
+            "oneOf": [
+                {
+                    "$ref": "#/definitions/fieldPath"
+                },
+                {
+                    "type": "object",
+                    "properties": {
+                        "source": {
+                            "$ref": "#/definitions/fieldPath"
+                        }
+                    }
+                }
+            ]
+        },
+        "fieldPath": {
+            "type": "string",
+            "description": "field, sub fields separated with dot (.)",
+            "pattern": "^[a-zA-Z0-9_]+(\\.[a-zA-Z0-9_]+)*$"
+        }
+    }
+}
diff --git a/schemas/api-config/hooks.json b/schemas/api-config/hooks.json
new file mode 100644
index 0000000..b73357b
--- /dev/null
+++ b/schemas/api-config/hooks.json
@@ -0,0 +1,92 @@
+{
+    "$schema": "http://json-schema.org/draft-07/schema#",
+    "title": "JSON Schema WMBasic hooks configuration",
+    "description": "WMBasic hooks linter",
+    "type": "object",
+    "additionalProperties": false,
+    "properties": {
+        "get": {
+            "type": "object",
+            "description": "hooks for http GET",
+            "additionalProperties": false,
+            "properties": {
+                "read": {
+                    "description": "hook before reading from database",
+                    "$ref": "#/definitions/hookDef"
+                },
+                "return": {
+                    "description": "hook before returning entries read from database",
+                    "$ref": "#/definitions/hookDef"
+                }
+            }
+        },
+        "post": {
+            "type": "object",
+            "description": "hooks for http POST",
+            "additionalProperties": false,
+            "properties": {
+                "bind": {
+                    "description": "hook before binding data from post request",
+                    "$ref": "#/definitions/hookDef"
+                },
+                "create": {
+                    "description": "hook before creating entry in database",
+                    "$ref": "#/definitions/hookDef"
+                },
+                "return": {
+                    "description": "hook before returning result (after database write)",
+                    "$ref": "#/definitions/hookDef"
+                }
+            }
+        },
+        "put": {
+            "type": "object",
+            "description": "hooks for http PUT",
+            "additionalProperties": false,
+            "properties": {
+                "bind": {
+                    "description": "hook before binding data from put request",
+                    "$ref": "#/definitions/hookDef"
+                },
+                "update": {
+                    "description": "hook before updating entry in database",
+                    "$ref": "#/definitions/hookDef"
+                },
+                "return": {
+                    "description": "hook before returning result (after database write)",
+                    "$ref": "#/definitions/hookDef"
+                }
+            }
+        },
+        "delete": {
+            "type": "object",
+            "description": "hooks for http DELETE",
+            "additionalProperties": false,
+            "properties": {
+                "delete": {
+                    "description": "hook before deleting entry from database",
+                    "$ref": "#/definitions/hookDef"
+                },
+                "return": {
+                    "description": "hook before returning result (after database write)",
+                    "$ref": "#/definitions/hookDef"
+                }
+            }
+        }
+    },
+    "definitions": {
+        "hookDef": {
+            "type": "object",
+            "properties": {
+                "type": {
+                    "const": "javascript"
+                },
+                "file": {
+                    "type": "string",
+                    "description": "location of javascript hook file relative to config.yml base"
+                }
+            },
+            "required": ["type", "file"]
+        }
+    }
+}
diff --git a/schemas/api-config/imageFilter.json b/schemas/api-config/imageFilter.json
new file mode 100644
index 0000000..1e5e802
--- /dev/null
+++ b/schemas/api-config/imageFilter.json
@@ -0,0 +1,63 @@
+{
+    "$schema": "http://json-schema.org/draft-07/schema#",
+    "title": "JSON Schema WMBasic imageFilter configuration",
+    "description": "WMBasic imageFilter linter",
+    "type": "object",
+    "patternProperties": {
+        "^[a-zA-Z0-9_-]+$": {
+            "type": "array",
+            "items": {
+                "type": "object",
+                "properties": {
+                    "fit": {
+                        "type": "boolean"
+                    },
+                    "fill": {
+                        "type": "boolean"
+                    },
+                    "width": {
+                        "type": "number"
+                    },
+                    "height": {
+                        "type": "number"
+                    },
+                    "blur": {
+                        "type": "number"
+                    },
+                    "brightness": {
+                        "type": "number"
+                    },
+                    "contrast": {
+                        "type": "number"
+                    },
+                    "gamma": {
+                        "type": "number"
+                    },
+                    "saturation": {
+                        "type": "number"
+                    },
+                    "sharpen": {
+                        "type": "number"
+                    },
+                    "invert": {
+                        "type": "boolean"
+                    },
+                    "grayscale": {
+                        "type": "boolean"
+                    },
+                    "resampling": {
+                        "enum": [
+                            "lancos",
+                            "nearestNeighbor",
+                            "linear",
+                            "catmullRom"
+                        ]
+                    },
+                    "quality": {
+                        "type": "number"
+                    }
+                }
+            }
+        }
+    }
+}
diff --git a/schemas/api-config/permissions.json b/schemas/api-config/permissions.json
new file mode 100644
index 0000000..dfba35b
--- /dev/null
+++ b/schemas/api-config/permissions.json
@@ -0,0 +1,43 @@
+{
+    "$schema": "http://json-schema.org/draft-07/schema#",
+    "title": "JSON Schema WMBasic permissions configuration",
+    "description": "WMBasic permissions linter",
+    "type": "object",
+    "additionalProperties": false,
+    "properties": {
+        "public": {
+            "description": "permissions for unauthorized public access",
+            "$ref": "#/definitions/permissionSet"
+        },
+        "user": {
+            "description": "permissions for authorized users (nativ wmbasic auth)",
+            "$ref": "#/definitions/permissionSet"
+        }
+    },
+    "patternProperties": {
+        "^token:": {
+            "description": "permissions for header or query token",
+            "$ref": "#/definitions/permissionSet"
+        }
+    },
+    "required": ["public", "user"],
+    "definitions": {
+        "permissionSet": {
+            "type": "object",
+            "additionalProperties": false,
+            "properties": {
+                "methods": {
+                    "type": "object",
+                    "description": "permissions for http methods",
+                    "additionalProperties": false,
+                    "properties": {
+                        "get": { "type": "boolean" },
+                        "post": { "type": "boolean" },
+                        "put": { "type": "boolean" },
+                        "delete": { "type": "boolean" }
+                    }
+                }
+            }
+        }
+    }
+}
diff --git a/schemas/api-config/projections.json b/schemas/api-config/projections.json
new file mode 100644
index 0000000..5f230e9
--- /dev/null
+++ b/schemas/api-config/projections.json
@@ -0,0 +1,22 @@
+{
+    "$schema": "http://json-schema.org/draft-07/schema#",
+    "title": "JSON Schema WMBasic imageFilter configuration",
+    "description": "WMBasic imageFilter linter",
+    "patternProperties": {
+        "^[a-zA-Z0-9_-]$": {
+            "type": "object",
+            "description": "dataset query projection config",
+            "properties": {
+                "select": {
+                    "type": "object",
+                    "description": "mongo db selector",
+                    "patternProperties": {
+                        "^[a-zA-Z0-9_]+(\\.[a-zA-Z0-9]+)*$": {
+                            "enum": [0, 1]
+                        }
+                    }
+                }
+            }
+        }
+    }
+}