fix: remove avoidable model runtime limits

Preserve long histories and parsed attachments, expose paged process and Subagent output, isolate MCP discovery failures, and expand browser snapshots and knowledge result selection. Remove fixed Harness output and updated remote Runtime duration limits.

Keep released Agent profile and v1 bridge compatibility while enabling larger framed exchanges and optional limits for updated peers. Document remote coverage requirements and real-model boundary validation.

Release note: Long model tasks can retain more context and continue reading complete tool output; remote execution preserves compatibility with released Agents. Updated remote limits require an updated Agent and Runtime bundle.

src/main/agent/deepseek-harness-runtime.test.ts

@@ -46,7 +46,6 @@ function setup(
     promptTimeoutMs?: number
     useProductionPromptTimeout?: boolean
     maxEventCharacters?: number
-    maxRequestOutputCharacters?: number
     supportsImageInput?: boolean
     requestHeaders?: Record<string, string>
     advertisedImageInput?: boolean
@@ -263,8 +262,6 @@ function setup(
     shutdownTimeoutMs: 10,
     maxStderrBytes: 16,
     maxEventCharacters: options.maxEventCharacters,
-    maxRequestOutputCharacters:
-      options.maxRequestOutputCharacters,
     toolProvider: options.toolProvider,
     skillPackages: options.skillPackages,
     extensionPackages: options.extensionPackages
@@ -759,10 +756,9 @@ describe('DeepSeekHarnessRuntime', () => {
     await harness.runtime.dispose()
   })
 
-  it('enforces the cumulative bridge limit against complete wire events', async () => {
+  it('streams beyond 4 MiB without cancelling the task', async () => {
     const harness = setup({
-      maxEventCharacters: 1_000,
-      maxRequestOutputCharacters: 180
+      maxEventCharacters: 100_000
     })
     const running = collect(
       harness.runtime.run(
@@ -774,23 +770,18 @@ describe('DeepSeekHarnessRuntime', () => {
       expect(harness.promptGates).toHaveLength(1)
     )
 
-    await harness.notify('goodbuddy/session/event', {
-      sessionId: 'session-1',
-      requestId: 'request-output-limit',
-      type: 'reasoning',
-      delta: 'x'.repeat(40)
-    })
-    await harness.notify('goodbuddy/session/event', {
-      sessionId: 'session-1',
-      requestId: 'request-output-limit',
-      type: 'reasoning',
-      delta: 'y'.repeat(40)
-    })
+    for (let index = 0; index < 65; index++) {
+      await harness.notify('goodbuddy/session/event', {
+        sessionId: 'session-1',
+        requestId: 'request-output-limit',
+        type: 'reasoning',
+        delta: 'x'.repeat(65_536)
+      })
+    }
     harness.promptGates[0]!.resolve({ stopReason: 'end_turn' })
 
-    await expect(running).rejects.toThrow(
-      '请求累计输出超过安全限制'
-    )
+    const events = await running
+    expect(events.filter((event) => event.type === 'reasoning')).toHaveLength(65)
     await harness.runtime.dispose()
   })