Set up monorepo infra: Yarn 4 workspaces, tsc -b + dumble build, vitest

Workspaces are vendor/* (Cordis framework vendored as source) and
packages/* (@deepseek-ai/dsh-* harness packages). Dev/test/demo run
unbuilt via tsx + root tsconfig paths; build = tsc -b (declarations)
+ dumble (JS bundles); tests = vitest + vite-tsconfig-paths.

.gitignore

@@ -1 +1,7 @@
 CLAUDE.local.md
+node_modules/
+lib/
+*.tsbuildinfo
+.yarn/
+yarn-error.log
+examples/*/*.jsonl

.yarnrc.yml

@@ -0,0 +1 @@
+nodeLinker: node-modules

package.json

@@ -0,0 +1,28 @@
+{
+  "name": "@deepseek-ai/dsh-root",
+  "version": "0.0.1",
+  "private": true,
+  "type": "module",
+  "packageManager": "yarn@4.14.1",
+  "engines": {
+    "node": ">=24"
+  },
+  "workspaces": [
+    "vendor/*",
+    "packages/*"
+  ],
+  "scripts": {
+    "build": "tsc -b tsconfig.build.json && tsx scripts/build.ts",
+    "typecheck": "tsc -b tsconfig.build.json",
+    "test": "vitest run",
+    "demo": "node --expose-internals --import tsx examples/echo-agent/start.ts"
+  },
+  "devDependencies": {
+    "@types/node": "^25.3.5",
+    "dumble": "^0.2.3",
+    "tsx": "^4.22.4",
+    "typescript": "^6.0.3",
+    "vite-tsconfig-paths": "^6.1.1",
+    "vitest": "^4.1.8"
+  }
+}

scripts/build.ts

@@ -0,0 +1,29 @@
+import { execFileSync } from 'node:child_process'
+import { existsSync } from 'node:fs'
+import { resolve } from 'node:path'
+
+// Bundle JS for every workspace package with dumble (tsc -b has already
+// produced the .d.ts files; dumble reads each package's tsconfig/package.json).
+const packages = [
+  'vendor/cosmokit',
+  'vendor/schemastery',
+  'vendor/cordis',
+  'vendor/loader',
+  'vendor/include',
+  'vendor/group',
+  'vendor/timer',
+  'vendor/hmr',
+  'vendor/logger-console',
+  'packages/llm',
+  'packages/session',
+  'packages/system-prompt',
+  'packages/tools',
+  'packages/agent',
+  'packages/agent-loop',
+]
+
+const root = resolve(import.meta.dirname, '..')
+for (const path of packages) {
+  if (!existsSync(resolve(root, path, 'tsconfig.json'))) continue
+  execFileSync('node_modules/.bin/dumble', [path], { cwd: root, stdio: 'inherit' })
+}

tsconfig.base.json

@@ -0,0 +1,17 @@
+{
+  "compilerOptions": {
+    "target": "es2024",
+    "module": "esnext",
+    "moduleResolution": "bundler",
+    "declaration": true,
+    "emitDeclarationOnly": true,
+    "composite": true,
+    "incremental": true,
+    "skipLibCheck": true,
+    "esModuleInterop": true,
+    "allowImportingTsExtensions": true,
+    "strict": true,
+    "noImplicitAny": false,
+    "types": ["node"]
+  }
+}

tsconfig.build.json

@@ -0,0 +1,20 @@
+{
+  "files": [],
+  "references": [
+    { "path": "./vendor/cosmokit" },
+    { "path": "./vendor/schemastery" },
+    { "path": "./vendor/cordis" },
+    { "path": "./vendor/loader" },
+    { "path": "./vendor/include" },
+    { "path": "./vendor/group" },
+    { "path": "./vendor/timer" },
+    { "path": "./vendor/hmr" },
+    { "path": "./vendor/logger-console" },
+    { "path": "./packages/llm" },
+    { "path": "./packages/session" },
+    { "path": "./packages/system-prompt" },
+    { "path": "./packages/agent" },
+    { "path": "./packages/tools" },
+    { "path": "./packages/agent-loop" }
+  ]
+}

tsconfig.json

@@ -0,0 +1,23 @@
+{
+  "extends": "./tsconfig.base.json",
+  "compilerOptions": {
+    "paths": {
+      "cordis": ["./vendor/cordis/src"],
+      "cosmokit": ["./vendor/cosmokit/src"],
+      "schemastery": ["./vendor/schemastery/src"],
+      "@cordisjs/plugin-loader": ["./vendor/loader/src"],
+      "@cordisjs/plugin-include": ["./vendor/include/src"],
+      "@cordisjs/plugin-group": ["./vendor/group/src"],
+      "@cordisjs/plugin-timer": ["./vendor/timer/src"],
+      "@cordisjs/plugin-hmr": ["./vendor/hmr/src"],
+      "@cordisjs/plugin-logger-console": ["./vendor/logger-console/src"],
+      "@deepseek-ai/dsh-llm": ["./packages/llm/src"],
+      "@deepseek-ai/dsh-session": ["./packages/session/src"],
+      "@deepseek-ai/dsh-system-prompt": ["./packages/system-prompt/src"],
+      "@deepseek-ai/dsh-tools": ["./packages/tools/src"],
+      "@deepseek-ai/dsh-agent": ["./packages/agent/src"],
+      "@deepseek-ai/dsh-agent-loop": ["./packages/agent-loop/src"]
+    }
+  },
+  "files": []
+}

tsconfig.test.json

@@ -0,0 +1,10 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "noEmit": true,
+    "emitDeclarationOnly": false,
+    "composite": false,
+    "types": ["node"]
+  },
+  "include": ["vendor/*/src", "packages/*/src", "packages/*/tests", "examples"]
+}

vitest.config.ts

@@ -0,0 +1,9 @@
+import tsconfigPaths from 'vite-tsconfig-paths'
+import { defineConfig } from 'vitest/config'
+
+export default defineConfig({
+  plugins: [tsconfigPaths({ projects: ['./tsconfig.test.json'] })],
+  test: {
+    include: ['packages/*/tests/**/*.spec.ts'],
+  },
+})