fix(sdk): share generated session identity

packages/sdk/helper/src/features/builtin/app.ts

@@ -4,6 +4,7 @@
  * @module @deepseek-ai/dsh-helper/features/builtin/app
  */
 
+import { JsExpression } from '../../documents/cordis-yaml-file.ts'
 import { featureId } from '../../ids.ts'
 import type { ProjectProfile } from '../../project/types.ts'
 import {
@@ -94,11 +95,11 @@ class AppOption extends FeatureOption {
             name: '@deepseek-ai/dsh-stdio',
             config: {
               welcome: 'agent REPL ready. Give it a coding task.',
-              agent: 'main',
+              sessionId: new JsExpression('process.env.DSH_SDK_SESSION_ID'),
             },
-          }, ['welcome', 'agent'], config => [
+          }, ['welcome', 'sessionId'], config => [
             ...optionalString(config, 'welcome'),
-            ...requiredString(config, 'agent'),
+            ...config.sessionId instanceof JsExpression ? [] : requiredString(config, 'sessionId'),
           ]),
         ])
       case 'embed':

packages/sdk/helper/src/templates/assets/index.ts.tpl

@@ -2,14 +2,12 @@
 import { startSDK, type SdkBootContext } from '@deepseek-ai/dsh-scripts'
 {{else}}
 import { randomUUID } from 'node:crypto'
-import { AgentId } from '@deepseek-ai/dsh-agent'
 import { SessionId } from '@deepseek-ai/dsh-session'
 import { startSDK, type SdkBootContext } from '@deepseek-ai/dsh-scripts'
 {{/if}}
 
 /** Boot this project's cordis.yml when invoked by dsh-scripts. */
 export async function main(boot: SdkBootContext) {
-  const ctx = await startSDK(new URL('./cordis.yml', import.meta.url))
 {{#if isStdio}}
   const model = boot.args.model
   if (typeof model !== 'string' || model.length === 0) throw new Error('stdio startup requires --model=<name>')
@@ -17,24 +15,26 @@ export async function main(boot: SdkBootContext) {
   if (resume !== undefined && (typeof resume !== 'string' || resume.length === 0)) {
     throw new Error('stdio startup requires --resume=<session-id>')
   }
+  const sessionId = SessionId(resume ?? `main-session-${randomUUID()}`)
+  process.env.DSH_SDK_SESSION_ID = sessionId
+{{/if}}
+  const ctx = await startSDK(new URL('./cordis.yml', import.meta.url))
+{{#if isStdio}}
   if (resume === undefined) {
     await ctx.agents.create({
-      agentId: AgentId('main'),
-      sessionId: SessionId(`main-session-${randomUUID()}`),
+      sessionId,
       meta: { cwd: boot.cwd },
       agentOptions: { model },
     })
   } else {
     await ctx.agents.resume({
-      agentId: AgentId('main'),
-      resumeSessionId: SessionId(resume),
+      resumeSessionId: sessionId,
       agentOptions: { model },
     })
   }
 {{else}}
 {{#if isEmbed}}
   await ctx.agents.create({
-    agentId: AgentId('main'),
     sessionId: SessionId(`main-session-${randomUUID()}`),
     meta: { cwd: boot.cwd },
     agentOptions: { model: {{modelLiteral}} },