From f3a380ae607a95c07773fecf0b802c77991cce51 Mon Sep 17 00:00:00 2001
From: per1234 <accounts@perglass.com>
Date: Sun, 11 Jul 2021 21:22:11 -0700
Subject: [PATCH 1/2] Add missing test for
 `packages[].platforms[].toolsDependencies[].version` type

This test verifies that the package index JSON schema validation result for the type of
`Add missing test for packages[].platforms[].toolsDependencies[].version type` is as expected.
---
 internal/project/packageindex/packageindexschemas_test.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/internal/project/packageindex/packageindexschemas_test.go b/internal/project/packageindex/packageindexschemas_test.go
index d1184f39..94509f4b 100644
--- a/internal/project/packageindex/packageindexschemas_test.go
+++ b/internal/project/packageindex/packageindexschemas_test.go
@@ -551,6 +551,7 @@ func TestType(t *testing.T) {
 		{"/packages/0/platforms/0/boards/0/name", 42, assert.True},
 		{"/packages/0/platforms/0/toolsDependencies", 42, assert.True},
 		{"/packages/0/platforms/0/toolsDependencies/0/packager", 42, assert.True},
+		{"/packages/0/platforms/0/toolsDependencies/0/version", 42, assert.True},
 		{"/packages/0/tools", 42, assert.True},
 		{"/packages/0/tools/0/name", 42, assert.True},
 		{"/packages/0/tools/0/version", 42, assert.True},

From 1ee41db9125bb2c4287126117887fa8f117bdf14 Mon Sep 17 00:00:00 2001
From: per1234 <accounts@perglass.com>
Date: Mon, 12 Jul 2021 04:31:02 -0700
Subject: [PATCH 2/2] Add schema-based rules for discovery dependencies data of
 package index

These are the JSON schema-based rules to check the `packages[].platforms[].discoveryDependencies[]`-level data of the
Arduino Package Index.
---
 ...uino-package-index-definitions-schema.json |  86 ++++++++++
 .../packageindex/packageindexschemas_test.go  |  33 ++++
 internal/project/projectdata/packageindex.go  |  12 ++
 .../project/projectdata/packageindex_test.go  | 157 +++++++++++++++--
 .../empty-ids/package_foo_index.json          |  52 ++++++
 .../missing-ids/package_foo_index.json        |  52 ++++++
 .../package_foo_index.json                    |  26 +++
 .../ruleconfiguration/ruleconfiguration.go    | 128 ++++++++++++++
 internal/rule/rulefunction/packageindex.go    | 160 ++++++++++++++++++
 .../rule/rulefunction/packageindex_test.go    |  80 +++++++++
 .../package_foo_index.json                    |  38 +++++
 .../package_foo_index.json                    |  32 ++++
 .../package_foo_index.json                    |  37 ++++
 .../package_foo_index.json                    |  37 ++++
 .../package_foo_index.json                    |  36 ++++
 .../package_foo_index.json                    |  37 ++++
 .../package_foo_index.json                    |  37 ++++
 .../package_foo_index.json                    |  36 ++++
 internal/rule/schema/schemadata/bindata.go    |  86 ++++++++++
 19 files changed, 1144 insertions(+), 18 deletions(-)
 create mode 100644 internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-additional-properties/package_foo_index.json
 create mode 100644 internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-incorrect-type/package_foo_index.json
 create mode 100644 internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-name-incorrect-type/package_foo_index.json
 create mode 100644 internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-name-length-lt/package_foo_index.json
 create mode 100644 internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-name-missing/package_foo_index.json
 create mode 100644 internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-packager-incorrect-type/package_foo_index.json
 create mode 100644 internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-packager-length-lt/package_foo_index.json
 create mode 100644 internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-packager-missing/package_foo_index.json

diff --git a/etc/schemas/arduino-package-index-definitions-schema.json b/etc/schemas/arduino-package-index-definitions-schema.json
index 9902fdee..98561789 100644
--- a/etc/schemas/arduino-package-index-definitions-schema.json
+++ b/etc/schemas/arduino-package-index-definitions-schema.json
@@ -451,6 +451,9 @@
                     },
                     "toolsDependencies": {
                       "$ref": "#/definitions/propertiesObjects/toolsDependencies/permissive/object"
+                    },
+                    "discoveryDependencies": {
+                      "$ref": "#/definitions/propertiesObjects/discoveryDependencies/permissive/object"
                     }
                   },
                   "additionalProperties": false
@@ -503,6 +506,9 @@
                     },
                     "toolsDependencies": {
                       "$ref": "#/definitions/propertiesObjects/toolsDependencies/specification/object"
+                    },
+                    "discoveryDependencies": {
+                      "$ref": "#/definitions/propertiesObjects/discoveryDependencies/specification/object"
                     }
                   },
                   "additionalProperties": false
@@ -555,6 +561,9 @@
                     },
                     "toolsDependencies": {
                       "$ref": "#/definitions/propertiesObjects/toolsDependencies/strict/object"
+                    },
+                    "discoveryDependencies": {
+                      "$ref": "#/definitions/propertiesObjects/discoveryDependencies/strict/object"
                     }
                   },
                   "additionalProperties": false
@@ -997,6 +1006,83 @@
           }
         }
       },
+      "discoveryDependencies": {
+        "base": {
+          "object": {
+            "type": "array",
+            "items": {
+              "type": "object",
+              "required": ["packager", "name"]
+            }
+          }
+        },
+        "permissive": {
+          "object": {
+            "allOf": [
+              {
+                "$ref": "#/definitions/propertiesObjects/discoveryDependencies/base/object"
+              },
+              {
+                "items": {
+                  "properties": {
+                    "packager": {
+                      "$ref": "#/definitions/propertiesObjects/packager/permissive/object"
+                    },
+                    "name": {
+                      "$ref": "#/definitions/propertiesObjects/toolName/permissive/object"
+                    }
+                  },
+                  "additionalProperties": false
+                }
+              }
+            ]
+          }
+        },
+        "specification": {
+          "object": {
+            "allOf": [
+              {
+                "$ref": "#/definitions/propertiesObjects/discoveryDependencies/base/object"
+              },
+              {
+                "items": {
+                  "properties": {
+                    "packager": {
+                      "$ref": "#/definitions/propertiesObjects/packager/specification/object"
+                    },
+                    "name": {
+                      "$ref": "#/definitions/propertiesObjects/toolName/specification/object"
+                    }
+                  },
+                  "additionalProperties": false
+                }
+              }
+            ]
+          }
+        },
+        "strict": {
+          "object": {
+            "allOf": [
+              {
+                "$ref": "#/definitions/propertiesObjects/discoveryDependencies/base/object"
+              },
+              {
+                "items": {
+                  "properties": {
+                    "packager": {
+                      "$ref": "#/definitions/propertiesObjects/packager/strict/object"
+                    },
+                    "name": {
+                      "$ref": "#/definitions/propertiesObjects/toolName/strict/object"
+                    }
+                  },
+                  "additionalProperties": false
+                }
+              }
+            ]
+          }
+        }
+      },
       "packager": {
         "base": {
           "object": {
diff --git a/internal/project/packageindex/packageindexschemas_test.go b/internal/project/packageindex/packageindexschemas_test.go
index 94509f4b..8a1fd91c 100644
--- a/internal/project/packageindex/packageindexschemas_test.go
+++ b/internal/project/packageindex/packageindexschemas_test.go
@@ -64,6 +64,12 @@ var validIndexRaw = []byte(`
 							"name": "avr-gcc",
 							"version": "7.3.0-atmel3.6.1-arduino7"
 						}
+					],
+					"discoveryDependencies": [
+						{
+							"packager": "arduino",
+							"name": "ble-discovery"
+						}
 					]
 				}
 			],
@@ -137,6 +143,14 @@ func TestMinLength(t *testing.T) {
 		{"/packages/0/platforms/0/toolsDependencies/0/name", 1, compliancelevel.Specification},
 		{"/packages/0/platforms/0/toolsDependencies/0/name", 1, compliancelevel.Strict},
 
+		{"/packages/0/platforms/0/discoveryDependencies/0/packager", 1, compliancelevel.Permissive},
+		{"/packages/0/platforms/0/discoveryDependencies/0/packager", 1, compliancelevel.Specification},
+		{"/packages/0/platforms/0/discoveryDependencies/0/packager", 1, compliancelevel.Strict},
+
+		{"/packages/0/platforms/0/discoveryDependencies/0/name", 1, compliancelevel.Permissive},
+		{"/packages/0/platforms/0/discoveryDependencies/0/name", 1, compliancelevel.Specification},
+		{"/packages/0/platforms/0/discoveryDependencies/0/name", 1, compliancelevel.Strict},
+
 		{"/packages/0/tools/0/systems/0/archiveFileName", 1, compliancelevel.Permissive},
 		{"/packages/0/tools/0/systems/0/archiveFileName", 1, compliancelevel.Specification},
 		{"/packages/0/tools/0/systems/0/archiveFileName", 1, compliancelevel.Strict},
@@ -276,6 +290,18 @@ func TestRequired(t *testing.T) {
 		{"/packages/0/platforms/0/toolsDependencies/0/version", compliancelevel.Specification, assert.True},
 		{"/packages/0/platforms/0/toolsDependencies/0/version", compliancelevel.Strict, assert.True},
 
+		{"/packages/0/platforms/0/discoveryDependencies", compliancelevel.Permissive, assert.False},
+		{"/packages/0/platforms/0/discoveryDependencies", compliancelevel.Specification, assert.False},
+		{"/packages/0/platforms/0/discoveryDependencies", compliancelevel.Strict, assert.False},
+
+		{"/packages/0/platforms/0/discoveryDependencies/0/packager", compliancelevel.Permissive, assert.True},
+		{"/packages/0/platforms/0/discoveryDependencies/0/packager", compliancelevel.Specification, assert.True},
+		{"/packages/0/platforms/0/discoveryDependencies/0/packager", compliancelevel.Strict, assert.True},
+
+		{"/packages/0/platforms/0/discoveryDependencies/0/name", compliancelevel.Permissive, assert.True},
+		{"/packages/0/platforms/0/discoveryDependencies/0/name", compliancelevel.Specification, assert.True},
+		{"/packages/0/platforms/0/discoveryDependencies/0/name", compliancelevel.Strict, assert.True},
+
 		{"/packages/0/tools/0/name", compliancelevel.Permissive, assert.True},
 		{"/packages/0/tools/0/name", compliancelevel.Specification, assert.True},
 		{"/packages/0/tools/0/name", compliancelevel.Strict, assert.True},
@@ -552,6 +578,9 @@ func TestType(t *testing.T) {
 		{"/packages/0/platforms/0/toolsDependencies", 42, assert.True},
 		{"/packages/0/platforms/0/toolsDependencies/0/packager", 42, assert.True},
 		{"/packages/0/platforms/0/toolsDependencies/0/version", 42, assert.True},
+		{"/packages/0/platforms/0/discoveryDependencies", 42, assert.True},
+		{"/packages/0/platforms/0/discoveryDependencies/0/packager", 42, assert.True},
+		{"/packages/0/platforms/0/discoveryDependencies/0/name", 42, assert.True},
 		{"/packages/0/tools", 42, assert.True},
 		{"/packages/0/tools/0/name", 42, assert.True},
 		{"/packages/0/tools/0/version", 42, assert.True},
@@ -679,6 +708,10 @@ func TestAdditionalProperties(t *testing.T) {
 		{"/packages/0/platforms/0/toolsDependencies/0", compliancelevel.Specification, assert.True},
 		{"/packages/0/platforms/0/toolsDependencies/0", compliancelevel.Strict, assert.True},
 
+		{"/packages/0/platforms/0/discoveryDependencies/0", compliancelevel.Permissive, assert.True},
+		{"/packages/0/platforms/0/discoveryDependencies/0", compliancelevel.Specification, assert.True},
+		{"/packages/0/platforms/0/discoveryDependencies/0", compliancelevel.Strict, assert.True},
+
 		{"/packages/0/tools/0", compliancelevel.Permissive, assert.True},
 		{"/packages/0/tools/0", compliancelevel.Specification, assert.True},
 		{"/packages/0/tools/0", compliancelevel.Strict, assert.True},
diff --git a/internal/project/projectdata/packageindex.go b/internal/project/projectdata/packageindex.go
index 6a75cff2..16343e23 100644
--- a/internal/project/projectdata/packageindex.go
+++ b/internal/project/projectdata/packageindex.go
@@ -44,6 +44,7 @@ func InitializeForPackageIndex() {
 	packageIndexPlatforms = nil
 	packageIndexBoards = nil
 	packageIndexToolsDependencies = nil
+	packageIndexDiscoveryDependencies = nil
 	packageIndexTools = nil
 	packageIndexSystems = nil
 	packageIndexSchemaValidationResult = nil
@@ -62,6 +63,10 @@ func InitializeForPackageIndex() {
 			packageIndexToolsDependencies = append(packageIndexToolsDependencies, getPackageIndexData(platformData.Object, platformData.JSONPointer, "toolsDependencies", platformData.ID, " - {{index . 0}}:{{index . 1}}@{{index . 2}}", []string{"packager", "name", "version"})...)
 		}
 
+		for _, platformData := range PackageIndexPlatforms() {
+			packageIndexDiscoveryDependencies = append(packageIndexDiscoveryDependencies, getPackageIndexData(platformData.Object, platformData.JSONPointer, "discoveryDependencies", platformData.ID, " - {{index . 0}}:{{index . 1}}", []string{"packager", "name"})...)
+		}
+
 		for _, packageData := range PackageIndexPackages() {
 			packageIndexTools = append(packageIndexTools, getPackageIndexData(packageData.Object, packageData.JSONPointer, "tools", packageData.ID, ":{{index . 0}}@{{index . 1}}", []string{"name", "version"})...)
 		}
@@ -123,6 +128,13 @@ func PackageIndexToolsDependencies() []PackageIndexData {
 	return packageIndexToolsDependencies
 }
 
+var packageIndexDiscoveryDependencies []PackageIndexData
+
+// PackageIndexDiscoveryDependencies returns the slice of pluggable discovery tool dependency data for the package index.
+func PackageIndexDiscoveryDependencies() []PackageIndexData {
+	return packageIndexDiscoveryDependencies
+}
+
 var packageIndexTools []PackageIndexData
 
 // PackageIndexTools returns the slice of tool data for the package index.
diff --git a/internal/project/projectdata/packageindex_test.go b/internal/project/projectdata/packageindex_test.go
index 86d4d1bf..33de679e 100644
--- a/internal/project/projectdata/packageindex_test.go
+++ b/internal/project/projectdata/packageindex_test.go
@@ -36,24 +36,26 @@ func init() {
 
 func TestInitializeForPackageIndex(t *testing.T) {
 	testTables := []struct {
-		testName                                    string
-		path                                        *paths.Path
-		packageIndexAssertion                       assert.ValueAssertionFunc
-		packageIndexLoadErrorAssertion              assert.ValueAssertionFunc
-		packageIndexCLILoadErrorAssertion           assert.ValueAssertionFunc
-		packageIndexPackagesAssertion               assert.ValueAssertionFunc
-		packageIndexPackagesDataAssertion           []PackageIndexData
-		packageIndexPlatformsAssertion              assert.ValueAssertionFunc
-		packageIndexPlatformsDataAssertion          []PackageIndexData
-		packageIndexBoardsAssertion                 assert.ValueAssertionFunc
-		packageIndexBoardsDataAssertion             []PackageIndexData
-		packageIndexToolsDependenciesAssertion      assert.ValueAssertionFunc
-		packageIndexToolsDependenciesDataAssertion  []PackageIndexData
-		packageIndexToolsAssertion                  assert.ValueAssertionFunc
-		packageIndexToolsDataAssertion              []PackageIndexData
-		packageIndexSystemsAssertion                assert.ValueAssertionFunc
-		packageIndexSystemsDataAssertion            []PackageIndexData
-		packageIndexSchemaValidationResultAssertion assert.ValueAssertionFunc
+		testName                                       string
+		path                                           *paths.Path
+		packageIndexAssertion                          assert.ValueAssertionFunc
+		packageIndexLoadErrorAssertion                 assert.ValueAssertionFunc
+		packageIndexCLILoadErrorAssertion              assert.ValueAssertionFunc
+		packageIndexPackagesAssertion                  assert.ValueAssertionFunc
+		packageIndexPackagesDataAssertion              []PackageIndexData
+		packageIndexPlatformsAssertion                 assert.ValueAssertionFunc
+		packageIndexPlatformsDataAssertion             []PackageIndexData
+		packageIndexBoardsAssertion                    assert.ValueAssertionFunc
+		packageIndexBoardsDataAssertion                []PackageIndexData
+		packageIndexToolsDependenciesAssertion         assert.ValueAssertionFunc
+		packageIndexToolsDependenciesDataAssertion     []PackageIndexData
+		packageIndexDiscoveryDependenciesAssertion     assert.ValueAssertionFunc
+		packageIndexDiscoveryDependenciesDataAssertion []PackageIndexData
+		packageIndexToolsAssertion                     assert.ValueAssertionFunc
+		packageIndexToolsDataAssertion                 []PackageIndexData
+		packageIndexSystemsAssertion                   assert.ValueAssertionFunc
+		packageIndexSystemsDataAssertion               []PackageIndexData
+		packageIndexSchemaValidationResultAssertion    assert.ValueAssertionFunc
 	}{
 		{
 			testName:                          "Valid",
@@ -161,6 +163,29 @@ func TestInitializeForPackageIndex(t *testing.T) {
 					JSONPointer: "/packages/1/platforms/1/toolsDependencies/1",
 				},
 			},
+			packageIndexDiscoveryDependenciesAssertion: assert.NotNil,
+			packageIndexDiscoveryDependenciesDataAssertion: []PackageIndexData{
+				{
+					ID:          "foopackager1:avr@1.0.1 - arduino:ble-discovery",
+					JSONPointer: "/packages/0/platforms/1/discoveryDependencies/0",
+				},
+				{
+					ID:          "foopackager1:avr@1.0.1 - barpackager:carrier-pigeon-discovery",
+					JSONPointer: "/packages/0/platforms/1/discoveryDependencies/1",
+				},
+				{
+					ID:          "foopackager2:samd@2.0.0 - arduino:ble-discovery",
+					JSONPointer: "/packages/1/platforms/0/discoveryDependencies/0",
+				},
+				{
+					ID:          "foopackager2:samd@2.0.0 - bazpackager:signal-flag-discovery",
+					JSONPointer: "/packages/1/platforms/0/discoveryDependencies/1",
+				},
+				{
+					ID:          "foopackager2:mbed@1.1.1 - quxpackager:sneakernet-discovery",
+					JSONPointer: "/packages/1/platforms/1/discoveryDependencies/0",
+				},
+			},
 			packageIndexToolsAssertion: assert.NotNil,
 			packageIndexToolsDataAssertion: []PackageIndexData{
 				{
@@ -327,6 +352,53 @@ func TestInitializeForPackageIndex(t *testing.T) {
 					JSONPointer: "/packages/1/platforms/2/toolsDependencies/3",
 				},
 			},
+			packageIndexDiscoveryDependenciesAssertion: assert.NotNil,
+			packageIndexDiscoveryDependenciesDataAssertion: []PackageIndexData{
+				{
+					ID:          "/packages/0/platforms/0/discoveryDependencies/0",
+					JSONPointer: "/packages/0/platforms/0/discoveryDependencies/0",
+				},
+				{
+					ID:          "/packages/0/platforms/0/discoveryDependencies/1",
+					JSONPointer: "/packages/0/platforms/0/discoveryDependencies/1",
+				},
+				{
+					ID:          "/packages/0/platforms/1/discoveryDependencies/0",
+					JSONPointer: "/packages/0/platforms/1/discoveryDependencies/0",
+				},
+				{
+					ID:          "/packages/0/platforms/1/discoveryDependencies/1",
+					JSONPointer: "/packages/0/platforms/1/discoveryDependencies/1",
+				},
+				{
+					ID:          "/packages/1/platforms/0/discoveryDependencies/0",
+					JSONPointer: "/packages/1/platforms/0/discoveryDependencies/0",
+				},
+				{
+					ID:          "/packages/1/platforms/0/discoveryDependencies/1",
+					JSONPointer: "/packages/1/platforms/0/discoveryDependencies/1",
+				},
+				{
+					ID:          "/packages/1/platforms/1/discoveryDependencies/0",
+					JSONPointer: "/packages/1/platforms/1/discoveryDependencies/0",
+				},
+				{
+					ID:          "/packages/1/platforms/1/discoveryDependencies/1",
+					JSONPointer: "/packages/1/platforms/1/discoveryDependencies/1",
+				},
+				{
+					ID:          "/packages/1/platforms/2/discoveryDependencies/0",
+					JSONPointer: "/packages/1/platforms/2/discoveryDependencies/0",
+				},
+				{
+					ID:          "/packages/1/platforms/2/discoveryDependencies/1",
+					JSONPointer: "/packages/1/platforms/2/discoveryDependencies/1",
+				},
+				{
+					ID:          "foopackager2:megaavr@1.0.0 - quxpackager:sneakernet-discovery",
+					JSONPointer: "/packages/1/platforms/2/discoveryDependencies/3",
+				},
+			},
 			packageIndexToolsAssertion: assert.NotNil,
 			packageIndexToolsDataAssertion: []PackageIndexData{
 				{
@@ -501,6 +573,53 @@ func TestInitializeForPackageIndex(t *testing.T) {
 					JSONPointer: "/packages/1/platforms/2/toolsDependencies/3",
 				},
 			},
+			packageIndexDiscoveryDependenciesAssertion: assert.NotNil,
+			packageIndexDiscoveryDependenciesDataAssertion: []PackageIndexData{
+				{
+					ID:          "/packages/0/platforms/0/discoveryDependencies/0",
+					JSONPointer: "/packages/0/platforms/0/discoveryDependencies/0",
+				},
+				{
+					ID:          "/packages/0/platforms/0/discoveryDependencies/1",
+					JSONPointer: "/packages/0/platforms/0/discoveryDependencies/1",
+				},
+				{
+					ID:          "/packages/0/platforms/1/discoveryDependencies/0",
+					JSONPointer: "/packages/0/platforms/1/discoveryDependencies/0",
+				},
+				{
+					ID:          "/packages/0/platforms/1/discoveryDependencies/1",
+					JSONPointer: "/packages/0/platforms/1/discoveryDependencies/1",
+				},
+				{
+					ID:          "/packages/1/platforms/0/discoveryDependencies/0",
+					JSONPointer: "/packages/1/platforms/0/discoveryDependencies/0",
+				},
+				{
+					ID:          "/packages/1/platforms/0/discoveryDependencies/1",
+					JSONPointer: "/packages/1/platforms/0/discoveryDependencies/1",
+				},
+				{
+					ID:          "/packages/1/platforms/1/discoveryDependencies/0",
+					JSONPointer: "/packages/1/platforms/1/discoveryDependencies/0",
+				},
+				{
+					ID:          "/packages/1/platforms/1/discoveryDependencies/1",
+					JSONPointer: "/packages/1/platforms/1/discoveryDependencies/1",
+				},
+				{
+					ID:          "/packages/1/platforms/2/discoveryDependencies/0",
+					JSONPointer: "/packages/1/platforms/2/discoveryDependencies/0",
+				},
+				{
+					ID:          "/packages/1/platforms/2/discoveryDependencies/1",
+					JSONPointer: "/packages/1/platforms/2/discoveryDependencies/1",
+				},
+				{
+					ID:          "foopackager2:megaavr@1.0.0 - quxpackager:sneakernet-discovery",
+					JSONPointer: "/packages/1/platforms/2/discoveryDependencies/3",
+				},
+			},
 			packageIndexToolsAssertion: assert.NotNil,
 			packageIndexToolsDataAssertion: []PackageIndexData{
 				{
@@ -551,6 +670,7 @@ func TestInitializeForPackageIndex(t *testing.T) {
 			packageIndexPlatformsAssertion:              assert.Nil,
 			packageIndexBoardsAssertion:                 assert.Nil,
 			packageIndexToolsDependenciesAssertion:      assert.Nil,
+			packageIndexDiscoveryDependenciesAssertion:  assert.Nil,
 			packageIndexToolsAssertion:                  assert.Nil,
 			packageIndexSystemsAssertion:                assert.Nil,
 			packageIndexSchemaValidationResultAssertion: assert.Nil,
@@ -565,6 +685,7 @@ func TestInitializeForPackageIndex(t *testing.T) {
 			packageIndexPlatformsAssertion:              assert.Nil,
 			packageIndexBoardsAssertion:                 assert.Nil,
 			packageIndexToolsDependenciesAssertion:      assert.Nil,
+			packageIndexDiscoveryDependenciesAssertion:  assert.Nil,
 			packageIndexToolsAssertion:                  assert.Nil,
 			packageIndexSystemsAssertion:                assert.Nil,
 			packageIndexSchemaValidationResultAssertion: assert.Nil,
diff --git a/internal/project/projectdata/testdata/packageindexes/empty-ids/package_foo_index.json b/internal/project/projectdata/testdata/packageindexes/empty-ids/package_foo_index.json
index 0d6e86c9..076738e3 100644
--- a/internal/project/projectdata/testdata/packageindexes/empty-ids/package_foo_index.json
+++ b/internal/project/projectdata/testdata/packageindexes/empty-ids/package_foo_index.json
@@ -33,6 +33,16 @@
               "name": "avrdude",
               "version": "6.0.1-arduino5"
             }
+          ],
+          "discoveryDependencies": [
+            {
+              "packager": "arduino",
+              "name": "ble-discovery"
+            },
+            {
+              "packager": "barpackager",
+              "name": "carrier-pigeon-discovery"
+            }
           ]
         },
         {
@@ -59,6 +69,16 @@
               "name": "avrdude",
               "version": "6.3.0-arduino17"
             }
+          ],
+          "discoveryDependencies": [
+            {
+              "packager": "arduino",
+              "name": "ble-discovery"
+            },
+            {
+              "packager": "barpackager",
+              "name": "carrier-pigeon-discovery"
+            }
           ]
         }
       ],
@@ -97,6 +117,16 @@
               "name": "bossac",
               "version": "1.7.0-arduino3"
             }
+          ],
+          "discoveryDependencies": [
+            {
+              "packager": "arduino",
+              "name": "ble-discovery"
+            },
+            {
+              "packager": "bazpackager",
+              "name": "signal-flag-discovery"
+            }
           ]
         },
         {
@@ -123,6 +153,16 @@
               "name": "arm-none-eabi-gcc",
               "version": "7-2017q4"
             }
+          ],
+          "discoveryDependencies": [
+            {
+              "packager": "arduino",
+              "name": "ble-discovery"
+            },
+            {
+              "packager": "bazpackager",
+              "name": "signal-flag-discovery"
+            }
           ]
         },
         {
@@ -159,6 +199,18 @@
               "name": "CMSIS",
               "version": "4.5.0"
             }
+          ],
+          "discoveryDependencies": [
+            {
+              "name": "ble-discovery"
+            },
+            {
+              "packager": "bazpackager"
+            },
+            {
+              "packager": "quxpackager",
+              "name": "sneakernet-discovery"
+            }
           ]
         }
       ],
diff --git a/internal/project/projectdata/testdata/packageindexes/missing-ids/package_foo_index.json b/internal/project/projectdata/testdata/packageindexes/missing-ids/package_foo_index.json
index 05542649..ea1b5622 100644
--- a/internal/project/projectdata/testdata/packageindexes/missing-ids/package_foo_index.json
+++ b/internal/project/projectdata/testdata/packageindexes/missing-ids/package_foo_index.json
@@ -32,6 +32,16 @@
               "name": "avrdude",
               "version": "6.0.1-arduino5"
             }
+          ],
+          "discoveryDependencies": [
+            {
+              "packager": "arduino",
+              "name": "ble-discovery"
+            },
+            {
+              "packager": "barpackager",
+              "name": "carrier-pigeon-discovery"
+            }
           ]
         },
         {
@@ -58,6 +68,16 @@
               "name": "avrdude",
               "version": "6.3.0-arduino17"
             }
+          ],
+          "discoveryDependencies": [
+            {
+              "packager": "arduino",
+              "name": "ble-discovery"
+            },
+            {
+              "packager": "barpackager",
+              "name": "carrier-pigeon-discovery"
+            }
           ]
         }
       ],
@@ -95,6 +115,16 @@
               "name": "bossac",
               "version": "1.7.0-arduino3"
             }
+          ],
+          "discoveryDependencies": [
+            {
+              "packager": "arduino",
+              "name": "ble-discovery"
+            },
+            {
+              "packager": "bazpackager",
+              "name": "signal-flag-discovery"
+            }
           ]
         },
         {
@@ -120,6 +150,16 @@
               "name": "arm-none-eabi-gcc",
               "version": "7-2017q4"
             }
+          ],
+          "discoveryDependencies": [
+            {
+              "packager": "arduino",
+              "name": "ble-discovery"
+            },
+            {
+              "packager": "bazpackager",
+              "name": "signal-flag-discovery"
+            }
           ]
         },
         {
@@ -153,6 +193,18 @@
               "name": "CMSIS",
               "version": "4.5.0"
             }
+          ],
+          "discoveryDependencies": [
+            {
+              "name": "ble-discovery"
+            },
+            {
+              "packager": "bazpackager"
+            },
+            {
+              "packager": "quxpackager",
+              "name": "sneakernet-discovery"
+            }
           ]
         }
       ],
diff --git a/internal/project/projectdata/testdata/packageindexes/valid-package-index/package_foo_index.json b/internal/project/projectdata/testdata/packageindexes/valid-package-index/package_foo_index.json
index 15203499..67181764 100644
--- a/internal/project/projectdata/testdata/packageindexes/valid-package-index/package_foo_index.json
+++ b/internal/project/projectdata/testdata/packageindexes/valid-package-index/package_foo_index.json
@@ -59,6 +59,16 @@
               "name": "avrdude",
               "version": "6.3.0-arduino17"
             }
+          ],
+          "discoveryDependencies": [
+            {
+              "packager": "arduino",
+              "name": "ble-discovery"
+            },
+            {
+              "packager": "barpackager",
+              "name": "carrier-pigeon-discovery"
+            }
           ]
         }
       ],
@@ -97,6 +107,16 @@
               "name": "bossac",
               "version": "1.7.0-arduino3"
             }
+          ],
+          "discoveryDependencies": [
+            {
+              "packager": "arduino",
+              "name": "ble-discovery"
+            },
+            {
+              "packager": "bazpackager",
+              "name": "signal-flag-discovery"
+            }
           ]
         },
         {
@@ -123,6 +143,12 @@
               "name": "arm-none-eabi-gcc",
               "version": "7-2017q4"
             }
+          ],
+          "discoveryDependencies": [
+            {
+              "packager": "quxpackager",
+              "name": "sneakernet-discovery"
+            }
           ]
         }
       ],
diff --git a/internal/rule/ruleconfiguration/ruleconfiguration.go b/internal/rule/ruleconfiguration/ruleconfiguration.go
index 42f6717e..a512990f 100644
--- a/internal/rule/ruleconfiguration/ruleconfiguration.go
+++ b/internal/rule/ruleconfiguration/ruleconfiguration.go
@@ -4233,6 +4233,134 @@ var configurations = []Type{
 		ErrorModes:       []rulemode.Type{rulemode.Strict},
 		RuleFunction:     rulefunction.PackageIndexPackagesPlatformsToolsDependenciesVersionNonSemver,
 	},
+	{
+		ProjectType:      projecttype.PackageIndex,
+		SuperprojectType: projecttype.All,
+		Category:         "data",
+		Subcategory:      "platform",
+		ID:               "IL059",
+		Brief:            "incorrect packages[].platforms[].discoveryDependencies type",
+		Description:      "Must be an array.",
+		MessageTemplate:  "packages[].platforms[].discoveryDependencies property has incorrect type in platform(s): {{.}}",
+		DisableModes:     nil,
+		EnableModes:      []rulemode.Type{rulemode.Default},
+		InfoModes:        nil,
+		WarningModes:     nil,
+		ErrorModes:       []rulemode.Type{rulemode.Default},
+		RuleFunction:     rulefunction.PackageIndexPackagesPlatformsDiscoveryDependenciesIncorrectType,
+	},
+	{
+		ProjectType:      projecttype.PackageIndex,
+		SuperprojectType: projecttype.All,
+		Category:         "data",
+		Subcategory:      "platform",
+		ID:               "IL060",
+		Brief:            "additional properties in packages[].platforms[].discoveryDependencies[]",
+		Description:      "",
+		MessageTemplate:  "Unknown properties under packages[].platforms[].discoveryDependencies[] found in platform(s): {{.}}",
+		DisableModes:     nil,
+		EnableModes:      []rulemode.Type{rulemode.Default},
+		InfoModes:        nil,
+		WarningModes:     nil,
+		ErrorModes:       []rulemode.Type{rulemode.Default},
+		RuleFunction:     rulefunction.PackageIndexPackagesPlatformsDiscoveryDependenciesAdditionalProperties,
+	},
+	{
+		ProjectType:      projecttype.PackageIndex,
+		SuperprojectType: projecttype.All,
+		Category:         "data",
+		Subcategory:      "platform",
+		ID:               "IL061",
+		Brief:            "packages[].platforms[].discoveryDependencies[].packager missing",
+		Description:      "",
+		MessageTemplate:  "Missing packages[].platforms[].discoveryDependencies[].packager property in platform(s): {{.}}",
+		DisableModes:     nil,
+		EnableModes:      []rulemode.Type{rulemode.Default},
+		InfoModes:        nil,
+		WarningModes:     nil,
+		ErrorModes:       []rulemode.Type{rulemode.Default},
+		RuleFunction:     rulefunction.PackageIndexPackagesPlatformsDiscoveryDependenciesPackagerMissing,
+	},
+	{
+		ProjectType:      projecttype.PackageIndex,
+		SuperprojectType: projecttype.All,
+		Category:         "data",
+		Subcategory:      "platform",
+		ID:               "IL062",
+		Brief:            "incorrect packages[].platforms[].discoveryDependencies[].packager type",
+		Description:      "Must be a string.",
+		MessageTemplate:  "packages[].platforms[].discoveryDependencies[].packager property has incorrect type in platform(s): {{.}}",
+		DisableModes:     nil,
+		EnableModes:      []rulemode.Type{rulemode.Default},
+		InfoModes:        nil,
+		WarningModes:     nil,
+		ErrorModes:       []rulemode.Type{rulemode.Default},
+		RuleFunction:     rulefunction.PackageIndexPackagesPlatformsDiscoveryDependenciesPackagerIncorrectType,
+	},
+	{
+		ProjectType:      projecttype.PackageIndex,
+		SuperprojectType: projecttype.All,
+		Category:         "data",
+		Subcategory:      "platform",
+		ID:               "IL063",
+		Brief:            "packages[].platforms[].discoveryDependencies[].packager < min length",
+		Description:      "",
+		MessageTemplate:  "packages[].platforms[].discoveryDependencies[].packager value less than the minimum length in platform(s): {{.}}",
+		DisableModes:     nil,
+		EnableModes:      []rulemode.Type{rulemode.Default},
+		InfoModes:        nil,
+		WarningModes:     nil,
+		ErrorModes:       []rulemode.Type{rulemode.Default},
+		RuleFunction:     rulefunction.PackageIndexPackagesPlatformsDiscoveryDependenciesPackagerLTMinLength,
+	},
+	{
+		ProjectType:      projecttype.PackageIndex,
+		SuperprojectType: projecttype.All,
+		Category:         "data",
+		Subcategory:      "platform",
+		ID:               "IL064",
+		Brief:            "packages[].platforms[].discoveryDependencies[].name missing",
+		Description:      "",
+		MessageTemplate:  "Missing packages[].platforms[].discoveryDependencies[].name property in platform(s): {{.}}",
+		DisableModes:     nil,
+		EnableModes:      []rulemode.Type{rulemode.Default},
+		InfoModes:        nil,
+		WarningModes:     nil,
+		ErrorModes:       []rulemode.Type{rulemode.Default},
+		RuleFunction:     rulefunction.PackageIndexPackagesPlatformsDiscoveryDependenciesNameMissing,
+	},
+	{
+		ProjectType:      projecttype.PackageIndex,
+		SuperprojectType: projecttype.All,
+		Category:         "data",
+		Subcategory:      "platform",
+		ID:               "IL065",
+		Brief:            "incorrect packages[].platforms[].discoveryDependencies[].name type",
+		Description:      "Must be a string.",
+		MessageTemplate:  "packages[].platforms[].discoveryDependencies[].name property has incorrect type in platform(s): {{.}}",
+		DisableModes:     nil,
+		EnableModes:      []rulemode.Type{rulemode.Default},
+		InfoModes:        nil,
+		WarningModes:     nil,
+		ErrorModes:       []rulemode.Type{rulemode.Default},
+		RuleFunction:     rulefunction.PackageIndexPackagesPlatformsDiscoveryDependenciesNameIncorrectType,
+	},
+	{
+		ProjectType:      projecttype.PackageIndex,
+		SuperprojectType: projecttype.All,
+		Category:         "data",
+		Subcategory:      "platform",
+		ID:               "IL066",
+		Brief:            "packages[].platforms[].discoveryDependencies[].name < min length",
+		Description:      "",
+		MessageTemplate:  "packages[].platforms[].discoveryDependencies[].name value less than the minimum length in platform(s): {{.}}",
+		DisableModes:     nil,
+		EnableModes:      []rulemode.Type{rulemode.Default},
+		InfoModes:        nil,
+		WarningModes:     nil,
+		ErrorModes:       []rulemode.Type{rulemode.Default},
+		RuleFunction:     rulefunction.PackageIndexPackagesPlatformsDiscoveryDependenciesNameLTMinLength,
+	},
 	{
 		ProjectType:      projecttype.PackageIndex,
 		SuperprojectType: projecttype.All,
diff --git a/internal/rule/rulefunction/packageindex.go b/internal/rule/rulefunction/packageindex.go
index cb380056..b455ecde 100644
--- a/internal/rule/rulefunction/packageindex.go
+++ b/internal/rule/rulefunction/packageindex.go
@@ -1775,6 +1775,166 @@ func PackageIndexPackagesPlatformsToolsDependenciesVersionNonSemver() (result ru
 	return ruleresult.Pass, ""
 }
 
+// PackageIndexPackagesPlatformsDiscoveryDependenciesIncorrectType checks for incorrect type of the packages[].platforms[].discoveryDependencies property.
+func PackageIndexPackagesPlatformsDiscoveryDependenciesIncorrectType() (result ruleresult.Type, output string) {
+	if projectdata.PackageIndexLoadError() != nil {
+		return ruleresult.NotRun, "Error loading package index"
+	}
+
+	nonCompliantIDs := []string{}
+	for _, platformData := range projectdata.PackageIndexPlatforms() {
+		if schema.PropertyTypeMismatch(platformData.JSONPointer+"/discoveryDependencies", projectdata.PackageIndexSchemaValidationResult()[compliancelevel.Specification]) {
+			nonCompliantIDs = append(nonCompliantIDs, platformData.ID)
+		}
+	}
+
+	if len(nonCompliantIDs) > 0 {
+		return ruleresult.Fail, strings.Join(nonCompliantIDs, ", ")
+	}
+
+	return ruleresult.Pass, ""
+}
+
+// PackageIndexPackagesPlatformsDiscoveryDependenciesAdditionalProperties checks for additional properties in packages[].platforms[].discoveryDependencies[].
+func PackageIndexPackagesPlatformsDiscoveryDependenciesAdditionalProperties() (result ruleresult.Type, output string) {
+	if projectdata.PackageIndexLoadError() != nil {
+		return ruleresult.NotRun, "Error loading package index"
+	}
+
+	nonCompliantIDs := []string{}
+	for _, dependencyData := range projectdata.PackageIndexDiscoveryDependencies() {
+		if schema.ProhibitedAdditionalProperties(dependencyData.JSONPointer, projectdata.PackageIndexSchemaValidationResult()[compliancelevel.Specification]) {
+			nonCompliantIDs = append(nonCompliantIDs, dependencyData.ID)
+		}
+	}
+
+	if len(nonCompliantIDs) > 0 {
+		return ruleresult.Fail, strings.Join(nonCompliantIDs, ", ")
+	}
+
+	return ruleresult.Pass, ""
+}
+
+// PackageIndexPackagesPlatformsDiscoveryDependenciesPackagerMissing checks for missing packages[].platforms[].discoveryDependencies[].packager property.
+func PackageIndexPackagesPlatformsDiscoveryDependenciesPackagerMissing() (result ruleresult.Type, output string) {
+	if projectdata.PackageIndexLoadError() != nil {
+		return ruleresult.NotRun, "Error loading package index"
+	}
+
+	nonCompliantIDs := []string{}
+	for _, dependencyData := range projectdata.PackageIndexDiscoveryDependencies() {
+		if schema.RequiredPropertyMissing(dependencyData.JSONPointer+"/packager", projectdata.PackageIndexSchemaValidationResult()[compliancelevel.Specification]) {
+			nonCompliantIDs = append(nonCompliantIDs, dependencyData.ID)
+		}
+	}
+
+	if len(nonCompliantIDs) > 0 {
+		return ruleresult.Fail, strings.Join(nonCompliantIDs, ", ")
+	}
+
+	return ruleresult.Pass, ""
+}
+
+// PackageIndexPackagesPlatformsDiscoveryDependenciesPackagerIncorrectType checks for incorrect type of the packages[].platforms[].discoveryDependencies[].packager property.
+func PackageIndexPackagesPlatformsDiscoveryDependenciesPackagerIncorrectType() (result ruleresult.Type, output string) {
+	if projectdata.PackageIndexLoadError() != nil {
+		return ruleresult.NotRun, "Error loading package index"
+	}
+
+	nonCompliantIDs := []string{}
+	for _, dependencyData := range projectdata.PackageIndexDiscoveryDependencies() {
+		if schema.PropertyTypeMismatch(dependencyData.JSONPointer+"/packager", projectdata.PackageIndexSchemaValidationResult()[compliancelevel.Specification]) {
+			nonCompliantIDs = append(nonCompliantIDs, dependencyData.ID)
+		}
+	}
+
+	if len(nonCompliantIDs) > 0 {
+		return ruleresult.Fail, strings.Join(nonCompliantIDs, ", ")
+	}
+
+	return ruleresult.Pass, ""
+}
+
+// PackageIndexPackagesPlatformsDiscoveryDependenciesPackagerLTMinLength checks for packages[].platforms[].discoveryDependencies[].packager property less than the minimum length.
+func PackageIndexPackagesPlatformsDiscoveryDependenciesPackagerLTMinLength() (result ruleresult.Type, output string) {
+	if projectdata.PackageIndexLoadError() != nil {
+		return ruleresult.NotRun, "Error loading package index"
+	}
+
+	nonCompliantIDs := []string{}
+	for _, dependencyData := range projectdata.PackageIndexDiscoveryDependencies() {
+		if schema.PropertyLessThanMinLength(dependencyData.JSONPointer+"/packager", projectdata.PackageIndexSchemaValidationResult()[compliancelevel.Specification]) {
+			nonCompliantIDs = append(nonCompliantIDs, dependencyData.ID)
+		}
+	}
+
+	if len(nonCompliantIDs) > 0 {
+		return ruleresult.Fail, strings.Join(nonCompliantIDs, ", ")
+	}
+
+	return ruleresult.Pass, ""
+}
+
+// PackageIndexPackagesPlatformsDiscoveryDependenciesNameMissing checks for missing packages[].platforms[].discoveryDependencies[].name property.
+func PackageIndexPackagesPlatformsDiscoveryDependenciesNameMissing() (result ruleresult.Type, output string) {
+	if projectdata.PackageIndexLoadError() != nil {
+		return ruleresult.NotRun, "Error loading package index"
+	}
+
+	nonCompliantIDs := []string{}
+	for _, dependencyData := range projectdata.PackageIndexDiscoveryDependencies() {
+		if schema.RequiredPropertyMissing(dependencyData.JSONPointer+"/name", projectdata.PackageIndexSchemaValidationResult()[compliancelevel.Specification]) {
+			nonCompliantIDs = append(nonCompliantIDs, dependencyData.ID)
+		}
+	}
+
+	if len(nonCompliantIDs) > 0 {
+		return ruleresult.Fail, strings.Join(nonCompliantIDs, ", ")
+	}
+
+	return ruleresult.Pass, ""
+}
+
+// PackageIndexPackagesPlatformsDiscoveryDependenciesNameIncorrectType checks for incorrect type of the packages[].platforms[].discoveryDependencies[].name property.
+func PackageIndexPackagesPlatformsDiscoveryDependenciesNameIncorrectType() (result ruleresult.Type, output string) {
+	if projectdata.PackageIndexLoadError() != nil {
+		return ruleresult.NotRun, "Error loading package index"
+	}
+
+	nonCompliantIDs := []string{}
+	for _, dependencyData := range projectdata.PackageIndexDiscoveryDependencies() {
+		if schema.PropertyTypeMismatch(dependencyData.JSONPointer+"/name", projectdata.PackageIndexSchemaValidationResult()[compliancelevel.Specification]) {
+			nonCompliantIDs = append(nonCompliantIDs, dependencyData.ID)
+		}
+	}
+
+	if len(nonCompliantIDs) > 0 {
+		return ruleresult.Fail, strings.Join(nonCompliantIDs, ", ")
+	}
+
+	return ruleresult.Pass, ""
+}
+
+// PackageIndexPackagesPlatformsDiscoveryDependenciesNameLTMinLength checks for packages[].platforms[].discoveryDependencies[].name property less than the minimum length.
+func PackageIndexPackagesPlatformsDiscoveryDependenciesNameLTMinLength() (result ruleresult.Type, output string) {
+	if projectdata.PackageIndexLoadError() != nil {
+		return ruleresult.NotRun, "Error loading package index"
+	}
+
+	nonCompliantIDs := []string{}
+	for _, dependencyData := range projectdata.PackageIndexDiscoveryDependencies() {
+		if schema.PropertyLessThanMinLength(dependencyData.JSONPointer+"/name", projectdata.PackageIndexSchemaValidationResult()[compliancelevel.Specification]) {
+			nonCompliantIDs = append(nonCompliantIDs, dependencyData.ID)
+		}
+	}
+
+	if len(nonCompliantIDs) > 0 {
+		return ruleresult.Fail, strings.Join(nonCompliantIDs, ", ")
+	}
+
+	return ruleresult.Pass, ""
+}
+
 // PackageIndexPackagesToolsMissing checks for missing packages[].tools property.
 func PackageIndexPackagesToolsMissing() (result ruleresult.Type, output string) {
 	if projectdata.PackageIndexLoadError() != nil {
diff --git a/internal/rule/rulefunction/packageindex_test.go b/internal/rule/rulefunction/packageindex_test.go
index 9bcbfdb3..442d6012 100644
--- a/internal/rule/rulefunction/packageindex_test.go
+++ b/internal/rule/rulefunction/packageindex_test.go
@@ -932,6 +932,86 @@ func TestPackageIndexPackagesPlatformsToolsDependenciesVersionNonSemver(t *testi
 	checkPackageIndexRuleFunction(PackageIndexPackagesPlatformsToolsDependenciesVersionNonSemver, testTables, t)
 }
 
+func TestPackageIndexPackagesPlatformsDiscoveryDependenciesIncorrectType(t *testing.T) {
+	testTables := []packageIndexRuleFunctionTestTable{
+		{"Invalid JSON", "invalid-JSON", ruleresult.NotRun, ""},
+		{"Incorrect packages[].platforms[].discoveryDependencies type", "packages-platforms-discoverydependencies-incorrect-type", ruleresult.Fail, "^foopackager:avr@1\\.0\\.0$"},
+		{"Valid", "valid-package-index", ruleresult.Pass, ""},
+	}
+
+	checkPackageIndexRuleFunction(PackageIndexPackagesPlatformsDiscoveryDependenciesIncorrectType, testTables, t)
+}
+
+func TestPackageIndexPackagesPlatformsDiscoveryDependenciesAdditionalProperties(t *testing.T) {
+	testTables := []packageIndexRuleFunctionTestTable{
+		{"Invalid JSON", "invalid-JSON", ruleresult.NotRun, ""},
+		{"Additional packages[].platforms[].discoveryDependencies[] properties", "packages-platforms-discoverydependencies-additional-properties", ruleresult.Fail, "^foopackager:avr@1\\.0\\.0 - arduino:ble-discovery$"},
+		{"Valid", "valid-package-index", ruleresult.Pass, ""},
+	}
+
+	checkPackageIndexRuleFunction(PackageIndexPackagesPlatformsDiscoveryDependenciesAdditionalProperties, testTables, t)
+}
+
+func TestPackageIndexPackagesPlatformsDiscoveryDependenciesPackagerMissing(t *testing.T) {
+	testTables := []packageIndexRuleFunctionTestTable{
+		{"Invalid JSON", "invalid-JSON", ruleresult.NotRun, ""},
+		{"packages[].platforms[].discoveryDependencies[].packager missing", "packages-platforms-discoverydependencies-packager-missing", ruleresult.Fail, "^/packages/0/platforms/0/discoveryDependencies/0$"},
+		{"Valid", "valid-package-index", ruleresult.Pass, ""},
+	}
+
+	checkPackageIndexRuleFunction(PackageIndexPackagesPlatformsDiscoveryDependenciesPackagerMissing, testTables, t)
+}
+
+func TestPackageIndexPackagesPlatformsDiscoveryDependenciesPackagerIncorrectType(t *testing.T) {
+	testTables := []packageIndexRuleFunctionTestTable{
+		{"Invalid JSON", "invalid-JSON", ruleresult.NotRun, ""},
+		{"Incorrect packages[].platforms[].discoveryDependencies[].packager type", "packages-platforms-discoverydependencies-packager-incorrect-type", ruleresult.Fail, "^/packages/0/platforms/0/discoveryDependencies/0$"},
+		{"Valid", "valid-package-index", ruleresult.Pass, ""},
+	}
+
+	checkPackageIndexRuleFunction(PackageIndexPackagesPlatformsDiscoveryDependenciesPackagerIncorrectType, testTables, t)
+}
+
+func TestPackageIndexPackagesPlatformsDiscoveryDependenciesPackagerLTMinLength(t *testing.T) {
+	testTables := []packageIndexRuleFunctionTestTable{
+		{"Invalid JSON", "invalid-JSON", ruleresult.NotRun, ""},
+		{"packages[].platforms[].discoveryDependencies[].packager < min length", "packages-platforms-discoverydependencies-packager-length-lt", ruleresult.Fail, "^/packages/0/platforms/0/discoveryDependencies/0$"},
+		{"Valid", "valid-package-index", ruleresult.Pass, ""},
+	}
+
+	checkPackageIndexRuleFunction(PackageIndexPackagesPlatformsDiscoveryDependenciesPackagerLTMinLength, testTables, t)
+}
+
+func TestPackageIndexPackagesPlatformsDiscoveryDependenciesNameMissing(t *testing.T) {
+	testTables := []packageIndexRuleFunctionTestTable{
+		{"Invalid JSON", "invalid-JSON", ruleresult.NotRun, ""},
+		{"packages[].platforms[].discoveryDependencies[].name missing", "packages-platforms-discoverydependencies-name-missing", ruleresult.Fail, "^/packages/0/platforms/0/discoveryDependencies/0$"},
+		{"Valid", "valid-package-index", ruleresult.Pass, ""},
+	}
+
+	checkPackageIndexRuleFunction(PackageIndexPackagesPlatformsDiscoveryDependenciesNameMissing, testTables, t)
+}
+
+func TestPackageIndexPackagesPlatformsDiscoveryDependenciesNameIncorrectType(t *testing.T) {
+	testTables := []packageIndexRuleFunctionTestTable{
+		{"Invalid JSON", "invalid-JSON", ruleresult.NotRun, ""},
+		{"Incorrect packages[].platforms[].discoveryDependencies[].name type", "packages-platforms-discoverydependencies-name-incorrect-type", ruleresult.Fail, "^/packages/0/platforms/0/discoveryDependencies/0$"},
+		{"Valid", "valid-package-index", ruleresult.Pass, ""},
+	}
+
+	checkPackageIndexRuleFunction(PackageIndexPackagesPlatformsDiscoveryDependenciesNameIncorrectType, testTables, t)
+}
+
+func TestPackageIndexPackagesPlatformsDiscoveryDependenciesNameLTMinLength(t *testing.T) {
+	testTables := []packageIndexRuleFunctionTestTable{
+		{"Invalid JSON", "invalid-JSON", ruleresult.NotRun, ""},
+		{"packages[].platforms[].discoveryDependencies[].name < min length", "packages-platforms-discoverydependencies-name-length-lt", ruleresult.Fail, "^/packages/0/platforms/0/discoveryDependencies/0$"},
+		{"Valid", "valid-package-index", ruleresult.Pass, ""},
+	}
+
+	checkPackageIndexRuleFunction(PackageIndexPackagesPlatformsDiscoveryDependenciesNameLTMinLength, testTables, t)
+}
+
 func TestPackageIndexPackagesToolsMissing(t *testing.T) {
 	testTables := []packageIndexRuleFunctionTestTable{
 		{"Invalid JSON", "invalid-JSON", ruleresult.NotRun, ""},
diff --git a/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-additional-properties/package_foo_index.json b/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-additional-properties/package_foo_index.json
new file mode 100644
index 00000000..61f2642a
--- /dev/null
+++ b/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-additional-properties/package_foo_index.json
@@ -0,0 +1,38 @@
+{
+  "packages": [
+    {
+      "name": "foopackager",
+      "maintainer": "Jane Developer",
+      "websiteURL": "http://example.com",
+      "email": "jane@example.com",
+      "help": {
+        "online": "http://example.com"
+      },
+      "platforms": [
+        {
+          "name": "My Board",
+          "architecture": "avr",
+          "version": "1.0.0",
+          "category": "Contributed",
+          "help": {
+            "online": "http://example.com"
+          },
+          "url": "http://example.com",
+          "archiveFileName": "myboard-1.0.0.zip",
+          "checksum": "MD5:6c0f556759894aa1a45e8af423a08ce8",
+          "size": "15005",
+          "boards": [],
+          "toolsDependencies": [],
+          "discoveryDependencies": [
+            {
+              "foo": "bar",
+              "packager": "arduino",
+              "name": "ble-discovery"
+            }
+          ]
+        }
+      ],
+      "tools": []
+    }
+  ]
+}
diff --git a/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-incorrect-type/package_foo_index.json b/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-incorrect-type/package_foo_index.json
new file mode 100644
index 00000000..6ef418d8
--- /dev/null
+++ b/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-incorrect-type/package_foo_index.json
@@ -0,0 +1,32 @@
+{
+  "packages": [
+    {
+      "name": "foopackager",
+      "maintainer": "Jane Developer",
+      "websiteURL": "http://example.com",
+      "email": "jane@example.com",
+      "help": {
+        "online": "http://example.com"
+      },
+      "platforms": [
+        {
+          "name": "My Board",
+          "architecture": "avr",
+          "version": "1.0.0",
+          "category": "Contributed",
+          "help": {
+            "online": "http://example.com"
+          },
+          "url": "http://example.com",
+          "archiveFileName": "myboard-1.0.0.zip",
+          "checksum": "MD5:6c0f556759894aa1a45e8af423a08ce8",
+          "size": "15005",
+          "boards": [],
+          "toolsDependencies": [],
+          "discoveryDependencies": 42
+        }
+      ],
+      "tools": []
+    }
+  ]
+}
diff --git a/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-name-incorrect-type/package_foo_index.json b/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-name-incorrect-type/package_foo_index.json
new file mode 100644
index 00000000..f5c64682
--- /dev/null
+++ b/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-name-incorrect-type/package_foo_index.json
@@ -0,0 +1,37 @@
+{
+  "packages": [
+    {
+      "name": "foopackager",
+      "maintainer": "Jane Developer",
+      "websiteURL": "http://example.com",
+      "email": "jane@example.com",
+      "help": {
+        "online": "http://example.com"
+      },
+      "platforms": [
+        {
+          "name": "My Board",
+          "architecture": "avr",
+          "version": "1.0.0",
+          "category": "Contributed",
+          "help": {
+            "online": "http://example.com"
+          },
+          "url": "http://example.com",
+          "archiveFileName": "myboard-1.0.0.zip",
+          "checksum": "MD5:6c0f556759894aa1a45e8af423a08ce8",
+          "size": "15005",
+          "boards": [],
+          "toolsDependencies": [],
+          "discoveryDependencies": [
+            {
+              "packager": "arduino",
+              "name": 42
+            }
+          ]
+        }
+      ],
+      "tools": []
+    }
+  ]
+}
diff --git a/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-name-length-lt/package_foo_index.json b/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-name-length-lt/package_foo_index.json
new file mode 100644
index 00000000..de446446
--- /dev/null
+++ b/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-name-length-lt/package_foo_index.json
@@ -0,0 +1,37 @@
+{
+  "packages": [
+    {
+      "name": "foopackager",
+      "maintainer": "Jane Developer",
+      "websiteURL": "http://example.com",
+      "email": "jane@example.com",
+      "help": {
+        "online": "http://example.com"
+      },
+      "platforms": [
+        {
+          "name": "My Board",
+          "architecture": "avr",
+          "version": "1.0.0",
+          "category": "Contributed",
+          "help": {
+            "online": "http://example.com"
+          },
+          "url": "http://example.com",
+          "archiveFileName": "myboard-1.0.0.zip",
+          "checksum": "MD5:6c0f556759894aa1a45e8af423a08ce8",
+          "size": "15005",
+          "boards": [],
+          "toolsDependencies": [],
+          "discoveryDependencies": [
+            {
+              "packager": "arduino",
+              "name": ""
+            }
+          ]
+        }
+      ],
+      "tools": []
+    }
+  ]
+}
diff --git a/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-name-missing/package_foo_index.json b/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-name-missing/package_foo_index.json
new file mode 100644
index 00000000..36313023
--- /dev/null
+++ b/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-name-missing/package_foo_index.json
@@ -0,0 +1,36 @@
+{
+  "packages": [
+    {
+      "name": "foopackager",
+      "maintainer": "Jane Developer",
+      "websiteURL": "http://example.com",
+      "email": "jane@example.com",
+      "help": {
+        "online": "http://example.com"
+      },
+      "platforms": [
+        {
+          "name": "My Board",
+          "architecture": "avr",
+          "version": "1.0.0",
+          "category": "Contributed",
+          "help": {
+            "online": "http://example.com"
+          },
+          "url": "http://example.com",
+          "archiveFileName": "myboard-1.0.0.zip",
+          "checksum": "MD5:6c0f556759894aa1a45e8af423a08ce8",
+          "size": "15005",
+          "boards": [],
+          "toolsDependencies": [],
+          "discoveryDependencies": [
+            {
+              "packager": "arduino"
+            }
+          ]
+        }
+      ],
+      "tools": []
+    }
+  ]
+}
diff --git a/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-packager-incorrect-type/package_foo_index.json b/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-packager-incorrect-type/package_foo_index.json
new file mode 100644
index 00000000..1d1bb903
--- /dev/null
+++ b/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-packager-incorrect-type/package_foo_index.json
@@ -0,0 +1,37 @@
+{
+  "packages": [
+    {
+      "name": "foopackager",
+      "maintainer": "Jane Developer",
+      "websiteURL": "http://example.com",
+      "email": "jane@example.com",
+      "help": {
+        "online": "http://example.com"
+      },
+      "platforms": [
+        {
+          "name": "My Board",
+          "architecture": "avr",
+          "version": "1.0.0",
+          "category": "Contributed",
+          "help": {
+            "online": "http://example.com"
+          },
+          "url": "http://example.com",
+          "archiveFileName": "myboard-1.0.0.zip",
+          "checksum": "MD5:6c0f556759894aa1a45e8af423a08ce8",
+          "size": "15005",
+          "boards": [],
+          "toolsDependencies": [],
+          "discoveryDependencies": [
+            {
+              "packager": 42,
+              "name": "ble-discovery"
+            }
+          ]
+        }
+      ],
+      "tools": []
+    }
+  ]
+}
diff --git a/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-packager-length-lt/package_foo_index.json b/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-packager-length-lt/package_foo_index.json
new file mode 100644
index 00000000..7f509746
--- /dev/null
+++ b/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-packager-length-lt/package_foo_index.json
@@ -0,0 +1,37 @@
+{
+  "packages": [
+    {
+      "name": "foopackager",
+      "maintainer": "Jane Developer",
+      "websiteURL": "http://example.com",
+      "email": "jane@example.com",
+      "help": {
+        "online": "http://example.com"
+      },
+      "platforms": [
+        {
+          "name": "My Board",
+          "architecture": "avr",
+          "version": "1.0.0",
+          "category": "Contributed",
+          "help": {
+            "online": "http://example.com"
+          },
+          "url": "http://example.com",
+          "archiveFileName": "myboard-1.0.0.zip",
+          "checksum": "MD5:6c0f556759894aa1a45e8af423a08ce8",
+          "size": "15005",
+          "boards": [],
+          "toolsDependencies": [],
+          "discoveryDependencies": [
+            {
+              "packager": "",
+              "name": "ble-discovery"
+            }
+          ]
+        }
+      ],
+      "tools": []
+    }
+  ]
+}
diff --git a/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-packager-missing/package_foo_index.json b/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-packager-missing/package_foo_index.json
new file mode 100644
index 00000000..b711ce68
--- /dev/null
+++ b/internal/rule/rulefunction/testdata/packageindexes/packages-platforms-discoverydependencies-packager-missing/package_foo_index.json
@@ -0,0 +1,36 @@
+{
+  "packages": [
+    {
+      "name": "foopackager",
+      "maintainer": "Jane Developer",
+      "websiteURL": "http://example.com",
+      "email": "jane@example.com",
+      "help": {
+        "online": "http://example.com"
+      },
+      "platforms": [
+        {
+          "name": "My Board",
+          "architecture": "avr",
+          "version": "1.0.0",
+          "category": "Contributed",
+          "help": {
+            "online": "http://example.com"
+          },
+          "url": "http://example.com",
+          "archiveFileName": "myboard-1.0.0.zip",
+          "checksum": "MD5:6c0f556759894aa1a45e8af423a08ce8",
+          "size": "15005",
+          "boards": [],
+          "toolsDependencies": [],
+          "discoveryDependencies": [
+            {
+              "name": "ble-discovery"
+            }
+          ]
+        }
+      ],
+      "tools": []
+    }
+  ]
+}
diff --git a/internal/rule/schema/schemadata/bindata.go b/internal/rule/schema/schemadata/bindata.go
index 805b8872..1ff2f050 100644
--- a/internal/rule/schema/schemadata/bindata.go
+++ b/internal/rule/schema/schemadata/bindata.go
@@ -2987,6 +2987,9 @@ var _arduinoPackageIndexDefinitionsSchemaJson = []byte(`{
                     },
                     "toolsDependencies": {
                       "$ref": "#/definitions/propertiesObjects/toolsDependencies/permissive/object"
+                    },
+                    "discoveryDependencies": {
+                      "$ref": "#/definitions/propertiesObjects/discoveryDependencies/permissive/object"
                     }
                   },
                   "additionalProperties": false
@@ -3039,6 +3042,9 @@ var _arduinoPackageIndexDefinitionsSchemaJson = []byte(`{
                     },
                     "toolsDependencies": {
                       "$ref": "#/definitions/propertiesObjects/toolsDependencies/specification/object"
+                    },
+                    "discoveryDependencies": {
+                      "$ref": "#/definitions/propertiesObjects/discoveryDependencies/specification/object"
                     }
                   },
                   "additionalProperties": false
@@ -3091,6 +3097,9 @@ var _arduinoPackageIndexDefinitionsSchemaJson = []byte(`{
                     },
                     "toolsDependencies": {
                       "$ref": "#/definitions/propertiesObjects/toolsDependencies/strict/object"
+                    },
+                    "discoveryDependencies": {
+                      "$ref": "#/definitions/propertiesObjects/discoveryDependencies/strict/object"
                     }
                   },
                   "additionalProperties": false
@@ -3533,6 +3542,83 @@ var _arduinoPackageIndexDefinitionsSchemaJson = []byte(`{
           }
         }
       },
+      "discoveryDependencies": {
+        "base": {
+          "object": {
+            "type": "array",
+            "items": {
+              "type": "object",
+              "required": ["packager", "name"]
+            }
+          }
+        },
+        "permissive": {
+          "object": {
+            "allOf": [
+              {
+                "$ref": "#/definitions/propertiesObjects/discoveryDependencies/base/object"
+              },
+              {
+                "items": {
+                  "properties": {
+                    "packager": {
+                      "$ref": "#/definitions/propertiesObjects/packager/permissive/object"
+                    },
+                    "name": {
+                      "$ref": "#/definitions/propertiesObjects/toolName/permissive/object"
+                    }
+                  },
+                  "additionalProperties": false
+                }
+              }
+            ]
+          }
+        },
+        "specification": {
+          "object": {
+            "allOf": [
+              {
+                "$ref": "#/definitions/propertiesObjects/discoveryDependencies/base/object"
+              },
+              {
+                "items": {
+                  "properties": {
+                    "packager": {
+                      "$ref": "#/definitions/propertiesObjects/packager/specification/object"
+                    },
+                    "name": {
+                      "$ref": "#/definitions/propertiesObjects/toolName/specification/object"
+                    }
+                  },
+                  "additionalProperties": false
+                }
+              }
+            ]
+          }
+        },
+        "strict": {
+          "object": {
+            "allOf": [
+              {
+                "$ref": "#/definitions/propertiesObjects/discoveryDependencies/base/object"
+              },
+              {
+                "items": {
+                  "properties": {
+                    "packager": {
+                      "$ref": "#/definitions/propertiesObjects/packager/strict/object"
+                    },
+                    "name": {
+                      "$ref": "#/definitions/propertiesObjects/toolName/strict/object"
+                    }
+                  },
+                  "additionalProperties": false
+                }
+              }
+            ]
+          }
+        }
+      },
       "packager": {
         "base": {
           "object": {