npmx-dev · typed-sigterm · Jun 17, 2026
diff --git a/packages/language-core/package.json b/packages/language-core/package.json
@@ -43,6 +43,7 @@
   "inlinedDependencies": {
     "fast-npm-meta": "1.5.1",
     "jsonc-parser": "3.3.1",
+    "module-replacements": "3.0.0-beta.7",
     "ofetch": "2.0.0-alpha.3",
     "path-browserify": "1.0.1",
     "yaml": "2.9.0"

diff --git a/packages/language-core/src/extractors/json.test.ts b/packages/language-core/src/extractors/json.test.ts
@@ -67,4 +67,84 @@ describe('jsonExtractor', () => {
       },
     })
   })
+
+  describe('getPackageManifestInfo', () => {
+    it('extracts overrides and resolutions from all package managers', () => {
+      const info = extractor.getPackageManifestInfo(`{
+        "name": "test-pkg",
+        "overrides": {
+          "lodash": "npm:lodash-es@^4.17.21",
+          "semver": "^7.0.0"
+        },
+        "resolutions": {
+          "**/lodash": "npm:lodash-es@^4.17.21",
+          "semver": "^7.0.0"
+        },
+        "pnpm": {
+          "overrides": {
+            "lodash": "npm:lodash-es@^4.17.21",
+            "semver": "^7.0.0"
+          }
+        }
+      }`)
+
+      const overrides = info?.dependencies.filter((d) => d.category === 'overrides')
+      const resolutions = info?.dependencies.filter((d) => d.category === 'resolutions')
+
+      expect(overrides).toHaveLength(4)
+      expect(resolutions).toHaveLength(2)
+
+      expect(overrides?.map(({ rawName, rawSpec }) => ({ rawName, rawSpec }))).toEqual([
+        { rawName: 'lodash', rawSpec: 'npm:lodash-es@^4.17.21' },
+        { rawName: 'semver', rawSpec: '^7.0.0' },
+        { rawName: 'lodash', rawSpec: 'npm:lodash-es@^4.17.21' },
+        { rawName: 'semver', rawSpec: '^7.0.0' },
+      ])
+
+      expect(resolutions?.map(({ rawName, rawSpec }) => ({ rawName, rawSpec }))).toEqual([
+        { rawName: 'lodash', rawSpec: 'npm:lodash-es@^4.17.21' },
+        { rawName: 'semver', rawSpec: '^7.0.0' },
+      ])
+    })
+
+    it('skips nested override objects', () => {
+      const info = extractor.getPackageManifestInfo(`{
+        "name": "test-pkg",
+        "overrides": {
+          "lodash": "npm:lodash-es@^4.17.21",
+          "express": {
+            "body-parser": "^1.0.0"
+          }
+        }
+      }`)
+
+      expect(info?.dependencies.filter((d) => d.category === 'overrides')).toHaveLength(1)
+    })
+
+    it('includes overrides alongside regular dependencies', () => {
+      const info = extractor.getPackageManifestInfo(`{
+        "name": "test-pkg",
+        "dependencies": {
+          "lodash": "^4.17.21"
+        },
+        "devDependencies": {
+          "vitest": "^4.0.0"
+        },
+        "overrides": {
+          "lodash": "npm:lodash-es@^4.17.21"
+        },
+        "resolutions": {
+          "semver": "npm:semver-ns@^7.0.0"
+        }
+      }`)
+
+      expect(info?.dependencies).toHaveLength(4)
+      expect(info?.dependencies.map(({ rawName, category }) => ({ rawName, category }))).toEqual([
+        { rawName: 'lodash', category: 'dependencies' },
+        { rawName: 'vitest', category: 'devDependencies' },
+        { rawName: 'lodash', category: 'overrides' },
+        { rawName: 'semver', category: 'resolutions' },
+      ])
+    })
+  })
 })
diff --git a/packages/language-core/src/extractors/json.ts b/packages/language-core/src/extractors/json.ts
@@ -20,6 +20,17 @@ const DEPENDENCY_SECTIONS: DependencyCategory[] = [
   'optionalDependencies',
 ]
 
+const RESOLUTION_SECTIONS: {
+  path: string[]
+  category: 'overrides' | 'resolutions'
+}[] = [
+  { path: ['overrides'], category: 'overrides' },
+  { path: ['resolutions'], category: 'resolutions' },
+  { path: ['pnpm', 'overrides'], category: 'overrides' },
+]
+
+const RESOLUTIONS_KEY_PREFIX = '**/'
+
 interface CatalogMeta {
   category: 'catalog' | 'catalogs'
   categoryName?: string
@@ -138,6 +149,28 @@ export class JsonExtractor implements PackageManifestExtractor, WorkspaceCatalog
       }
     })
 
+    for (const { path, category } of RESOLUTION_SECTIONS) {
+      const node = findNodeAtLocation(root, path)
+      if (!node || !node.children)
+        continue
+
+      for (const dep of node.children) {
+        const info = this.#parseDependencyNode(dep, category)
+        if (!info)
+          continue
+
+        if (category === 'resolutions' && info.rawName.startsWith(RESOLUTIONS_KEY_PREFIX)) {
+          result.push({
+            ...info,
+            rawName: info.rawName.slice(RESOLUTIONS_KEY_PREFIX.length),
+            nameRange: [info.nameRange[0] + RESOLUTIONS_KEY_PREFIX.length, info.nameRange[1]],
+          })
+        } else {
+          result.push(info)
+        }
+      }
+    }
+
     return result
   }
 

diff --git a/packages/language-core/src/types.ts b/packages/language-core/src/types.ts
@@ -17,6 +17,8 @@ export type DependencyCategory
     | 'devDependencies'
     | 'peerDependencies'
     | 'optionalDependencies'
+    | 'overrides'
+    | 'resolutions'
     | 'catalog'
     | 'catalogs'
 

diff --git a/packages/language-service/src/plugins/diagnostics/rules/replacement.ts b/packages/language-service/src/plugins/diagnostics/rules/replacement.ts
@@ -31,7 +31,8 @@ function getReplacementDescription(resolvedName: string, replacement: ModuleRepl
   }
 }
 
-export const checkReplacement: DiagnosticRule = async ({ dep: { nameRange, resolvedName } }, ignoreList) => {
+export const checkReplacement: DiagnosticRule = async ({ dep }, ignoreList) => {
+  const { resolvedName, category } = dep
   if (checkIgnored({ ignoreList, name: resolvedName }))
     return
 
@@ -43,8 +44,12 @@ export const checkReplacement: DiagnosticRule = async ({ dep: { nameRange, resol
 
   const link = resolveDocUrl(replacement.replacement.url)
 
+  const range = category === 'overrides' || category === 'resolutions'
+    ? dep.specRange
+    : dep.nameRange
+
   return {
-    range: nameRange,
+    range,
     message: description,
     severity: 2 satisfies typeof DiagnosticSeverity.Warning,
     code: 'replacement',

diff --git a/packages/language-service/src/plugins/document-link.ts b/packages/language-service/src/plugins/document-link.ts
@@ -32,7 +32,7 @@ export function create(workspaceState: IWorkspaceState): LanguageServicePlugin {
             if (dep.resolvedProtocol !== 'npm')
               continue
 
-            const { resolvedName, resolvedSpec, nameRange } = dep
+            const { resolvedName, resolvedSpec, nameRange, specRange, category } = dep
 
             let targetVersion: string | undefined
 
@@ -46,7 +46,9 @@ export function create(workspaceState: IWorkspaceState): LanguageServicePlugin {
               ? npmxPackageUrl(resolvedName, targetVersion)
               : npmxPackageUrl(resolvedName)
 
-            const [start, end] = nameRange
+            const [start, end] = category === 'overrides' || category === 'resolutions'
+              ? specRange
+              : nameRange
             links.push({
               range: {
                 start: document.positionAt(start),

diff --git a/playground/npm/package.json b/playground/npm/package.json
@@ -14,5 +14,9 @@
   "devDependencies": {
     "ofetch": "^1.4.0",
     "array-includes": "^3.1.8"
+  },
+  "overrides": {
+    "array-includes": "npm:array-includes-es@^3.1.8",
+    "lodash": "^4.17.20"
   }
 }
diff --git a/playground/pnpm/package.json b/playground/pnpm/package.json
@@ -15,5 +15,11 @@
     "ofetch": "^1.4.0",
     "array-includes": "^3.1.8",
     "is-number": "catalog:dev"
+  },
+  "pnpm": {
+    "overrides": {
+      "array-includes": "npm:array-includes-es@^3.1.8",
+      "lodash": "^4.17.20"
+    }
   }
 }
diff --git a/playground/yarn/package.json b/playground/yarn/package.json
@@ -14,5 +14,9 @@
   "devDependencies": {
     "ofetch": "^1.4.0",
     "array-includes": "^3.1.8"
+  },
+  "resolutions": {
+    "**/array-includes": "npm:array-includes-es@^3.1.8",
+    "lodash": "^4.17.20"
   }
 }