chore: bump Claude Code identity to 2.1.158 + sync beta flags from HAR captures

- Bump CLAUDE_CLI_VERSION / CLAUDE_CODE_VERSION from 2.1.146 to 2.1.158 (matches claude-cli 2.1.158 captures) - Add redact-thinking-2026-02-12 to the always-sent beta tier (present in Haiku, Sonnet, and Opus CC 2.1.158 captures) - Add mid-conversation-system-2026-04-07 for Opus full-agent only (present in Opus capture, absent from Sonnet/Haiku) - Remove afk-mode-2026-01-31 from heavy-agent beta flags (not present in any real Claude Code 2.1.158 capture) - Add mid-conversation-system-2026-04-07 to ANTHROPIC_BETA_BASE - Update CC-compatible bridge version strings - Fix STEALTH_GUIDE.md outdated version + Stainless version (0.81.0 → 0.94.0) - Update claude-beta-flags-2454 tests to match real CC behavior
2026-07-31 04:12:10 +03:00 · 2026-05-31 18:13:02 +02:00
parent 9f254a6e19
commit 7b6007bc2d
7 changed files with 21 additions and 15 deletions
--- a/.env.example
+++ b/.env.example
@@ -682,7 +682,7 @@ GITHUB_OAUTH_CLIENT_ID=Iv1.b507a08c87ecfe98
 # Used by: open-sse/executors/base.ts — buildHeaders() dynamic lookup.
 # Update these when providers release new CLI versions to avoid blocks.

-CLAUDE_USER_AGENT="claude-cli/2.1.146 (external, cli)"
+CLAUDE_USER_AGENT="claude-cli/2.1.158 (external, cli)"

 # Disable the deterministic tool-name cloak applied on both Anthropic-bound paths
 # (executors/base.ts native OAuth + executors/cliproxyapi.ts CLIProxyAPI) —
--- a/docs/security/STEALTH_GUIDE.md
+++ b/docs/security/STEALTH_GUIDE.md
@@ -88,8 +88,8 @@ Applied to: `system` blocks, all `messages[].content`, and `tools[].description`

 For third-party Anthropic relays that only accept "real Claude Code" traffic:

- `CLAUDE_CODE_COMPATIBLE_USER_AGENT = "claude-cli/2.1.146 (external, sdk-cli)"`
- `CLAUDE_CODE_COMPATIBLE_STAINLESS_PACKAGE_VERSION = "0.81.0"`
+- `CLAUDE_CODE_COMPATIBLE_USER_AGENT = "claude-cli/2.1.158 (external, sdk-cli)"`
+- `CLAUDE_CODE_COMPATIBLE_STAINLESS_PACKAGE_VERSION = "0.94.0"`
 - `CLAUDE_CODE_COMPATIBLE_STAINLESS_RUNTIME_VERSION = "v24.3.0"`
 - `anthropic-beta = "claude-code-20250219,interleaved-thinking-2025-05-14,effort-2025-11-24"`
 - `CONTEXT_1M_BETA_HEADER = "context-1m-2025-08-07"` (Opus/Sonnet 4.x family)
@@ -212,7 +212,7 @@ All MITM endpoints require management auth (`requireCliToolsAuth`). The sudo pas

 | Variable                 | Default                                       |
 | ------------------------ | --------------------------------------------- |
-| `CLAUDE_USER_AGENT`      | `claude-cli/2.1.146 (external, cli)`          |
+| `CLAUDE_USER_AGENT`      | `claude-cli/2.1.158 (external, cli)`          |
 | `CODEX_USER_AGENT`       | `codex-cli/0.132.0 (Windows 10.0.26200; x64)` |
 | `GITHUB_USER_AGENT`      | `GitHubCopilotChat/0.45.1`                    |
 | `ANTIGRAVITY_USER_AGENT` | `antigravity/2.0.1 darwin/arm64`              |
--- a/open-sse/config/anthropicHeaders.ts
+++ b/open-sse/config/anthropicHeaders.ts
@@ -11,6 +11,7 @@ const ANTHROPIC_BETA_BASE = Object.freeze([
  "structured-outputs-2025-12-15",
  "fast-mode-2026-02-01",
  "redact-thinking-2026-02-12",
+  "mid-conversation-system-2026-04-07",
  "token-efficient-tools-2026-03-28",
  "advisor-tool-2026-03-01",
  "extended-cache-ttl-2025-04-11",
@@ -29,7 +30,7 @@ export const ANTHROPIC_BETA_CLAUDE_OAUTH = [
  ...ANTHROPIC_BETA_BASE.slice(3),
 ].join(",");

-export const CLAUDE_CLI_VERSION = "2.1.146";
+export const CLAUDE_CLI_VERSION = "2.1.158";
 export const CLAUDE_CLI_USER_AGENT = `claude-cli/${CLAUDE_CLI_VERSION} (external, cli)`;
 export const CLAUDE_CLI_STAINLESS_PACKAGE_VERSION = "0.94.0";
 export const CLAUDE_CLI_STAINLESS_RUNTIME_VERSION = "v24.3.0";
--- a/open-sse/executors/claudeIdentity.ts
+++ b/open-sse/executors/claudeIdentity.ts
@@ -12,7 +12,7 @@ import { createHash, randomBytes, randomUUID } from "node:crypto";

 // ---------- Versions ------------------------------------------------------

-export const CLAUDE_CODE_VERSION = "2.1.146";
+export const CLAUDE_CODE_VERSION = "2.1.158";
 /** Bundled @anthropic-ai/sdk version for the pinned CLI release. */
 export const CLAUDE_CODE_STAINLESS_VERSION = "0.94.0";

@@ -342,9 +342,12 @@ export function selectBetaFlags(
  const flags: string[] = [];
  if (isFullAgent) flags.push("claude-code-20250219");
  flags.push("oauth-2025-04-20");
-  if (isContext1m) flags.push("context-1m-2025-08-07");
+  if (isContext1m) {
+    flags.push("context-1m-2025-08-07", "mid-conversation-system-2026-04-07");
+  }
  flags.push(
    "interleaved-thinking-2025-05-14",
+    "redact-thinking-2026-02-12",
    "thinking-token-count-2026-05-13",
    "context-management-2025-06-27",
    "prompt-caching-scope-2026-01-05"
@@ -357,7 +360,7 @@ export function selectBetaFlags(
    flags.push("extended-cache-ttl-2025-04-11", "cache-diagnosis-2026-04-07");
  }
  if (isHeavyAgent) {
-    flags.push("afk-mode-2026-01-31", "advanced-tool-use-2025-11-20", "effort-2025-11-24");
+    flags.push("advanced-tool-use-2025-11-20", "effort-2025-11-24");
  }
  return flags.join(",");
 }
--- a/open-sse/services/ccBridgeTransforms.ts
+++ b/open-sse/services/ccBridgeTransforms.ts
@@ -114,7 +114,7 @@ export const CCH_SALT = "59cf53e54c78";
 /** Character positions sampled from the first user message text. */
 export const CCH_POSITIONS = [4, 7, 20] as const;
 /** Default `cc_version=` value embedded in the billing header. */
-export const DEFAULT_CLAUDE_CODE_VERSION = "2.1.146";
+export const DEFAULT_CLAUDE_CODE_VERSION = "2.1.158";
 /** Identity sentinel prepended for Claude Agent SDK callers. */
 export const CLAUDE_AGENT_SDK_IDENTITY =
  "You are a Claude agent, built on Anthropic's Claude Agent SDK.";
--- a/open-sse/services/claudeCodeCompatible.ts
+++ b/open-sse/services/claudeCodeCompatible.ts
@@ -39,8 +39,8 @@ export const CLAUDE_CODE_COMPATIBLE_ANTHROPIC_BETA = [
  "interleaved-thinking-2025-05-14",
  "effort-2025-11-24",
 ].join(",");
-export const CLAUDE_CODE_COMPATIBLE_VERSION = "2.1.146";
-export const CLAUDE_CODE_COMPATIBLE_USER_AGENT = "claude-cli/2.1.146 (external, sdk-cli)";
+export const CLAUDE_CODE_COMPATIBLE_VERSION = "2.1.158";
+export const CLAUDE_CODE_COMPATIBLE_USER_AGENT = "claude-cli/2.1.158 (external, sdk-cli)";
 export const CLAUDE_CODE_COMPATIBLE_STAINLESS_PACKAGE_VERSION = "0.94.0";
 export const CLAUDE_CODE_COMPATIBLE_STAINLESS_RUNTIME_VERSION = "v24.3.0";
 export const CONTEXT_1M_BETA_HEADER = "context-1m-2025-08-07";
--- a/tests/unit/claude-beta-flags-2454.test.ts
+++ b/tests/unit/claude-beta-flags-2454.test.ts
@@ -20,7 +20,7 @@ function fullAgentBody(model: string) {
 test("#2454 Haiku full-agent omits heavy-agent beta flags", () => {
  const flags = selectBetaFlags(fullAgentBody("claude-haiku-4-5-20251001"));
  assert.ok(!flags.includes("context-1m-2025-08-07"), "Haiku must NOT receive context-1m");
-  assert.ok(!flags.includes("afk-mode-2026-01-31"), "Haiku must NOT receive afk-mode");
+  assert.ok(!flags.includes("afk-mode-2026-01-31"), "afk-mode removed — not in any CC capture");
  assert.ok(!flags.includes("effort-2025-11-24"), "Haiku must NOT receive effort");
  assert.ok(
    !flags.includes("advanced-tool-use-2025-11-20"),
@@ -39,13 +39,15 @@ test("#2454 Sonnet full-agent includes heavy-agent flags but omits context-1m",
  assert.ok(flags.includes("effort-2025-11-24"));
  assert.ok(flags.includes("advanced-tool-use-2025-11-20"));
  assert.ok(flags.includes("thinking-token-count-2026-05-13"));
-  assert.ok(flags.includes("afk-mode-2026-01-31"));
-  assert.ok(!flags.includes("redact-thinking-2026-02-12"));
+  assert.ok(flags.includes("redact-thinking-2026-02-12"), "Sonnet sends redact-thinking");
+  assert.ok(!flags.includes("afk-mode-2026-01-31"), "afk-mode removed — not in any CC capture");
+  assert.ok(!flags.includes("mid-conversation-system-2026-04-07"), "Sonnet must NOT receive mid-conversation-system");
 });

-test("#2454 Opus full-agent includes heavy-agent beta flags", () => {
+test("#2454 Opus full-agent includes context-1m and mid-conversation-system", () => {
  const flags = selectBetaFlags(fullAgentBody("claude-opus-4-7"));
  assert.ok(flags.includes("context-1m-2025-08-07"), "Opus should receive context-1m");
+  assert.ok(flags.includes("mid-conversation-system-2026-04-07"), "Opus should receive mid-conversation-system");
 });

 test("#2454 explicit model arg overrides body.model for tiering", () => {