From c252294dd74554df7fb2dec91d4bbff6a5f1356d Mon Sep 17 00:00:00 2001
From: claude-code-best <claude-code-best@proton.me>
Date: Thu, 2 Apr 2026 22:56:23 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E7=A7=BB=E9=99=A4=E5=8F=8D=E8=92=B8?=
 =?UTF-8?q?=E9=A6=8F=E4=BB=A3=E7=A0=81?=
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---
 DEV-LOG.md                        | 12 ++++++++++++
 README.md                         |  1 +
 src/constants/betas.ts            |  3 ---
 src/services/api/claude.ts        | 14 --------------
 src/utils/betas.ts                | 22 ----------------------
 src/utils/streamlinedTransform.ts |  2 +-
 6 files changed, 14 insertions(+), 40 deletions(-)

diff --git a/DEV-LOG.md b/DEV-LOG.md
index f7c4559..f471abf 100644
--- a/DEV-LOG.md
+++ b/DEV-LOG.md
@@ -1,5 +1,17 @@
 # DEV-LOG
 
+## 移除反蒸馏机制 (2026-04-02)
+
+项目中发现三处 anti-distillation 相关代码，全部移除。
+
+**移除内容：**
+- `src/services/api/claude.ts` — 删除 fake_tools 注入逻辑（原第 302-314 行），该代码通过 `ANTI_DISTILLATION_CC` feature flag 在 API 请求中注入 `anti_distillation: ['fake_tools']`，使服务端在响应中混入虚假工具调用以污染蒸馏数据
+- `src/utils/betas.ts` — 删除 connector-text summarization beta 注入块及 `SUMMARIZE_CONNECTOR_TEXT_BETA_HEADER` 导入，该机制让服务端缓冲工具调用间的 assistant 文本并摘要化返回
+- `src/constants/betas.ts` — 删除 `SUMMARIZE_CONNECTOR_TEXT_BETA_HEADER` 常量定义（原第 23-25 行）
+- `src/utils/streamlinedTransform.ts` — 注释从 "distillation-resistant" 改为 "compact"，streamlined 模式本身是有效的输出压缩功能，仅修正描述
+
+---
+
 ## Buddy 命令合入 + Feature Flag 规范修正 (2026-04-02)
 
 合入 `pr/smallflyingpig/36` 分支（支持 buddy 命令 + 修复 rehatch），并修正 feature flag 使用方式。
diff --git a/README.md b/README.md
index 46822bc..a99510f 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,7 @@
   - [x] Buddy 小宠物回来啦
   - [x] Auto Mode 回归
   - [x] 所有 Feature 现在可以通过环境变量配置, 而不是垃圾的 bun --feature
+  - [x] 移除牢 A 的反蒸馏代码!!!
 - [ ] V5 大规模重构石山代码, 全面模块分包
   - [ ] V5 将会为全新分支, 届时 main 分支将会封存为历史版本
 
diff --git a/src/constants/betas.ts b/src/constants/betas.ts
index f1ba0c6..88abf3f 100644
--- a/src/constants/betas.ts
+++ b/src/constants/betas.ts
@@ -20,9 +20,6 @@ export const FAST_MODE_BETA_HEADER = 'fast-mode-2026-02-01'
 export const REDACT_THINKING_BETA_HEADER = 'redact-thinking-2026-02-12'
 export const TOKEN_EFFICIENT_TOOLS_BETA_HEADER =
   'token-efficient-tools-2026-03-28'
-export const SUMMARIZE_CONNECTOR_TEXT_BETA_HEADER = feature('CONNECTOR_TEXT')
-  ? 'summarize-connector-text-2026-03-13'
-  : ''
 export const AFK_MODE_BETA_HEADER = feature('TRANSCRIPT_CLASSIFIER')
   ? 'afk-mode-2026-01-31'
   : ''
diff --git a/src/services/api/claude.ts b/src/services/api/claude.ts
index c45ea63..fd4f251 100644
--- a/src/services/api/claude.ts
+++ b/src/services/api/claude.ts
@@ -299,20 +299,6 @@ export function getExtraBodyParams(betaHeaders?: string[]): JsonObject {
     }
   }
 
-  // Anti-distillation: send fake_tools opt-in for 1P CLI only
-  if (
-    feature('ANTI_DISTILLATION_CC')
-      ? process.env.CLAUDE_CODE_ENTRYPOINT === 'cli' &&
-        shouldIncludeFirstPartyOnlyBetas() &&
-        getFeatureValue_CACHED_MAY_BE_STALE(
-          'tengu_anti_distill_fake_tool_injection',
-          false,
-        )
-      : false
-  ) {
-    result.anti_distillation = ['fake_tools']
-  }
-
   // Handle beta headers if provided
   if (betaHeaders && betaHeaders.length > 0) {
     if (result.anthropic_beta && Array.isArray(result.anthropic_beta)) {
diff --git a/src/utils/betas.ts b/src/utils/betas.ts
index fcd7b97..3a48a94 100644
--- a/src/utils/betas.ts
+++ b/src/utils/betas.ts
@@ -15,7 +15,6 @@ import {
   PROMPT_CACHING_SCOPE_BETA_HEADER,
   REDACT_THINKING_BETA_HEADER,
   STRUCTURED_OUTPUTS_BETA_HEADER,
-  SUMMARIZE_CONNECTOR_TEXT_BETA_HEADER,
   TOKEN_EFFICIENT_TOOLS_BETA_HEADER,
   TOOL_SEARCH_BETA_HEADER_1P,
   TOOL_SEARCH_BETA_HEADER_3P,
@@ -276,27 +275,6 @@ export const getAllModelBetas = memoize((model: string): string[] => {
     betaHeaders.push(REDACT_THINKING_BETA_HEADER)
   }
 
-  // POC: server-side connector-text summarization (anti-distillation). The
-  // API buffers assistant text between tool calls, summarizes it, and returns
-  // the summary with a signature so the original can be restored on subsequent
-  // turns — same mechanism as thinking blocks. Ant-only while we measure
-  // TTFT/TTLT/capacity; betas already flow to tengu_api_success for splitting.
-  // Backend independently requires Capability.ANTHROPIC_INTERNAL_RESEARCH.
-  //
-  // USE_CONNECTOR_TEXT_SUMMARIZATION is tri-state: =1 forces on (opt-in even
-  // if GB is off), =0 forces off (opt-out of a GB rollout you were bucketed
-  // into), unset defers to GB.
-  if (
-    SUMMARIZE_CONNECTOR_TEXT_BETA_HEADER &&
-    process.env.USER_TYPE === 'ant' &&
-    includeFirstPartyOnlyBetas &&
-    !isEnvDefinedFalsy(process.env.USE_CONNECTOR_TEXT_SUMMARIZATION) &&
-    (isEnvTruthy(process.env.USE_CONNECTOR_TEXT_SUMMARIZATION) ||
-      getFeatureValue_CACHED_MAY_BE_STALE('tengu_slate_prism', false))
-  ) {
-    betaHeaders.push(SUMMARIZE_CONNECTOR_TEXT_BETA_HEADER)
-  }
-
   // Add context management beta for tool clearing (ant opt-in) or thinking preservation
   const antOptedIntoToolClearing =
     isEnvTruthy(process.env.USE_API_CONTEXT_MANAGEMENT) &&
diff --git a/src/utils/streamlinedTransform.ts b/src/utils/streamlinedTransform.ts
index 6a04c03..8b7aa44 100644
--- a/src/utils/streamlinedTransform.ts
+++ b/src/utils/streamlinedTransform.ts
@@ -1,7 +1,7 @@
 /**
  * Transforms SDK messages for streamlined output mode.
  *
- * Streamlined mode is a "distillation-resistant" output format that:
+ * Streamlined mode is a compact output format that:
  * - Keeps text messages intact
  * - Summarizes tool calls with cumulative counts (resets when text appears)
  * - Omits thinking content