Fix Freebuff: correct User-Agent, metadata fields, session body, preset aliases

- User-Agent: ai-sdk/openai-compatible/1.0.25/codebuff (matches official SDK)
- metadata: freebuff_instance_id (not codebuff_instance_id) + client_id field
- Session POST: empty body {} (not {model: ...})
- Add Freebuff/FreeBuff preset aliases for backward compat

CHANGELOG.md

@@ -1,5 +1,23 @@
 # Changelog
 
+## v3.10.5 (2026-05-25)
+
+**Windows GUI + Context Compaction for Antigravity/Gemini OAuth**
+
+### Windows Native GUI (tkinter)
+- **Windows GUI** in `windows/` folder — full tkinter port by cobra91
+- OAuth Secrets editor, Import JSON, Antigravity model list
+- Shared backend with Linux (same translate-proxy.py)
+- See README for Windows installation and usage
+
+**Context Compaction for Antigravity/Gemini OAuth**
+
+### Fix
+- **Prevent `input token count exceeds maximum` errors** during long conversations
+- Added aggressive compaction policies for Antigravity (`cloudcode-pa`) and Gemini CLI (`googleapis`)
+- Auto-trims old turns when approaching 60% of model context limit (1M tokens for Gemini, 200K for Claude, 128K for GPT-OSS)
+- Added REST model IDs to context size map (`gemini-3-flash`, `gemini-3.1-pro-low`, `claude-sonnet-4-6`, etc.)
+
 ## v3.10.4 (2026-05-25)
 
 **Security: OAuth Secrets Editor + Import JSON**

README.md

@@ -9,7 +9,15 @@
   <a href="https://z.ai/subscribe?ic=ROK78RJKNW">z.ai/subscribe</a>
 </p>
 
+
+<p align="center">
 ---
+If you want fork it, use the Github copy, here it is:
+<a href="https://github.com/roman-ryzenadvanced/Codex-Launcher-Any-AI-Provider">Codex-Any-AI-Provider on Github (Official)</a>
+---
+</p>
+
+
 
 <h1 align="center">Codex Launcher — Any AI Provider</h1>
 
@@ -18,6 +26,13 @@
   Google Antigravity &bull; Gemini CLI &bull; OpenCode &bull; Z.AI &bull; Anthropic &bull; Command Code &bull; Codebuff &bull; OpenRouter &bull; Crof.ai &bull; NVIDIA NIM &bull; OpenAdapter &bull; Kilo.ai &bull; DeepSeek &bull; and more
 </p>
 
+<p align="center">
+  <sub>
+    Windows version by <a href="https://github.com/cobra91">cobra91</a> &bull;
+    Original Linux development by <a href="https://github.com/roman-ryzenadvanced">roman-ryzenadvanced</a>
+  </sub>
+</p>
+
 <p align="center">
   <img src="https://img.shields.io/badge/Python-3.8+-blue?logo=python&logoColor=white" alt="Python 3.8+" />
   <img src="https://img.shields.io/badge/GTK-3.0-green?logo=gtk&logoColor=white" alt="GTK 3.0" />
@@ -546,6 +561,16 @@ Codex Launcher includes special handling for Gemini 3 / Antigravity OAuth:
 - **User instruction enforcement**: The latest user message is guaranteed to be the
   final content turn sent to Gemini, even after compaction.
 - **Smart compaction**: Old tool outputs capped at 3000 chars, recent 6 at 20000 chars.
+- **Context compaction**: Aggressive auto-trimming when approaching 60% of model context
+  limit (1M tokens Gemini, 200K Claude, 128K GPT-OSS). Prevents token limit errors.
+- **Model ID mapping**: Display names (e.g. `Gemini 3.5 Flash (High)`) mapped to REST API
+  slugs (e.g. `gemini-3-flash`). See `docs/ANTIGRAVITY.md` for details.
+
+### OAuth Secrets
+
+Google OAuth credentials are stored locally in `~/.config/codex-launcher/oauth-secrets.json`
+and never committed to the repository. Use the **OAuth Secrets** button in the launcher
+header to edit or import `client_secret_*.json` files from Google Cloud Console.
 
 ---
 
@@ -762,15 +787,64 @@ codex --profile my-profile -c model=my-model
 
 ---
 
+## Windows Version
+
+A native **Windows GUI** (tkinter) is available in the [`windows/`](./windows/) folder, ported from the Linux GTK version.
+
+<p align="center">
+  <sub>
+    Windows version by <a href="https://github.com/cobra91">cobra91</a> &bull;
+    Original Linux development by <a href="https://github.com/roman-ryzenadvanced">roman-ryzenadvanced</a>
+  </sub>
+</p>
+
+### Files
+
+| File | Purpose |
+|---|---|
+| `windows/codex-launcher-gui.py` | tkinter GUI — manage endpoints, launch Codex CLI/Desktop |
+| `windows/codex_launcher_lib.py` | Shared library — proxy lifecycle, config, OAuth, diagnostics |
+
+### How to Run (Windows)
+
+Python ≥ 3.8 with tkinter is required (comes with the official Python installer).
+
+```powershell
+# From repo root
+cd windows
+python codex-launcher-gui.py
+```
+
+The GUI will:
+1. Auto-create default endpoints on first run
+2. Show a toolbar with Endpoints, OAuth Secrets, AI Monitor, and more
+3. Launch Codex CLI/Desktop with your chosen provider
+
+### OAuth Credentials
+
+Google OAuth (Antigravity / Gemini CLI) requires a `client_secret_*.json` from [Google Cloud Console](https://console.cloud.google.com/apis/credentials). Use the **OAuth Secrets** button in the GUI to import it — credentials are stored locally in `~/.config/codex-launcher/oauth-secrets.json`, never in the repo.
+
+### Shared Backend
+
+The same `translate-proxy.py` powers both Linux and Windows. All fixes apply to both:
+- Antigravity REST model ID mapping
+- Context compaction (60% of token limit)
+- Multi-account rotation
+- Rate limit handling
+- AI Monitoring / self-revive watchdog
+
+---
+
 ## Requirements
 
 - Python ≥ 3.8
-- python3-gi (`sudo apt install python3-gi`)
+- python3-gi (`sudo apt install python3-gi`) — Linux only
+- tkinter (`python3-tk`) — Windows / Linux GUI
 - Codex CLI ≥ 2.0
 - Codex Desktop (optional, for Desktop mode)
-- bash, curl, lsof
+- bash, curl, lsof — Linux only
 
-**No pip dependencies.** Zero. Pure stdlib + system GTK.
+**No pip dependencies.** Zero. Pure stdlib.
 
 ---
 

install.sh

@@ -3,11 +3,11 @@ set -e
 
 SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
 
-if [ -f "$SCRIPT_DIR/codex-launcher_3.10.4_all.deb" ]; then
+if [ -f "$SCRIPT_DIR/codex-launcher_3.10.5_all.deb" ]; then
-    echo "Installing codex-launcher_3.10.4_all.deb ..."
+    echo "Installing codex-launcher_3.10.5_all.deb ..."
-    sudo dpkg -i "$SCRIPT_DIR/codex-launcher_3.10.4_all.deb"
+    sudo dpkg -i "$SCRIPT_DIR/codex-launcher_3.10.5_all.deb"
     echo ""
-    echo "Installed v3.10.4 via .deb package."
+    echo "Installed v3.10.5 via .deb package."
     echo "  translate-proxy.py   -> /usr/bin/translate-proxy.py"
     echo "  codex-launcher-gui   -> /usr/bin/codex-launcher-gui"
     echo "  cleanup-codex-stale  -> /usr/bin/cleanup-codex-stale.sh"

src/codex-launcher-gui

@@ -393,7 +393,25 @@ PROVIDER_PRESETS = {
     },
     "Codebuff (Free DeepSeek/Kimi)": {
         "backend_type": "codebuff",
-        "base_url": "https://codebuff.com",
+        "base_url": "https://www.codebuff.com",
+        "oauth_provider": "codebuff",
+        "models": [
+            "deepseek/deepseek-v4-pro", "deepseek/deepseek-v4-flash",
+            "moonshotai/kimi-k2.6", "minimax/minimax-m2.7",
+        ],
+    },
+    "Freebuff (Free DeepSeek/Kimi)": {
+        "backend_type": "codebuff",
+        "base_url": "https://www.codebuff.com",
+        "oauth_provider": "codebuff",
+        "models": [
+            "deepseek/deepseek-v4-pro", "deepseek/deepseek-v4-flash",
+            "moonshotai/kimi-k2.6", "minimax/minimax-m2.7",
+        ],
+    },
+    "FreeBuff": {
+        "backend_type": "codebuff",
+        "base_url": "https://www.codebuff.com",
         "oauth_provider": "codebuff",
         "models": [
             "deepseek/deepseek-v4-pro", "deepseek/deepseek-v4-flash",
@@ -1780,7 +1798,7 @@ class LauncherWin(Gtk.Window):
         # header row
         hdr = Gtk.Box(spacing=8)
         vbox.pack_start(hdr, False, False, 0)
-        lbl = Gtk.Label(label="<b>Codex Launcher v3.10.4</b>")
+        lbl = Gtk.Label(label="<b>Codex Launcher v3.10.5</b>")
         lbl.set_use_markup(True)
         hdr.pack_start(lbl, False, False, 0)
         changelog_btn = Gtk.Button(label="Changelog")
@@ -3685,10 +3703,10 @@ class EditEndpointDialog(Gtk.Dialog):
         def _codebuff_auth_thread():
             try:
                 fingerprint_id = str(uuid.uuid4())
-                auth_url = "https://codebuff.com/api/auth/cli/code"
+                auth_url = "https://www.codebuff.com/api/auth/cli/code"
                 body = json.dumps({"fingerprintId": fingerprint_id}).encode()
                 req = urllib.request.Request(auth_url, data=body,
-                    headers={"Content-Type": "application/json", "User-Agent": "codex-launcher/3.10.4"})
+                    headers={"Content-Type": "application/json", "User-Agent": "codex-launcher/3.10.5"})
                 resp = urllib.request.urlopen(req, timeout=30)
                 data = json.loads(resp.read())
                 login_url = data.get("loginUrl", "") or data.get("login_url", "")
@@ -3707,13 +3725,13 @@ class EditEndpointDialog(Gtk.Dialog):
 
                 webbrowser.open(login_url)
 
-                poll_url = f"https://codebuff.com/api/auth/cli/status?fingerprintId={urllib.parse.quote(fingerprint_id)}&fingerprintHash={urllib.parse.quote(fingerprint_hash)}&expiresAt={expires_at}"
+                poll_url = f"https://www.codebuff.com/api/auth/cli/status?fingerprintId={urllib.parse.quote(fingerprint_id)}&fingerprintHash={urllib.parse.quote(fingerprint_hash)}&expiresAt={expires_at}"
                 deadline = time.time() + 300
                 while time.time() < deadline:
                     time.sleep(2)
                     try:
                         poll_req = urllib.request.Request(poll_url,
-                            headers={"User-Agent": "codex-launcher/3.10.4"})
+                            headers={"User-Agent": "codex-launcher/3.10.5"})
                         poll_resp = urllib.request.urlopen(poll_req, timeout=10)
                         poll_data = json.loads(poll_resp.read())
                         user = poll_data.get("user")

src/translate-proxy.py

@@ -294,7 +294,7 @@ _conn_pool = {}
 
 _STREAM_IDLE_TIMEOUT = 300
 
-_CODEBUFF_AUTH_URL = "https://codebuff.com"
+_CODEBUFF_AUTH_URL = "https://www.codebuff.com"
 _CODEBUFF_API_URL = "https://www.codebuff.com"
 _CODEBUFF_AGENT_MAP = {
     "deepseek/deepseek-v4-pro": "base2-free-deepseek",
@@ -331,11 +331,11 @@ def _codebuff_get_session(token, model):
             return sc["instance_id"]
     try:
         url = f"{_CODEBUFF_API_URL}/api/v1/freebuff/session"
-        body = json.dumps({"model": model}).encode()
+        body = json.dumps({}).encode()
         req = urllib.request.Request(url, data=body, headers={
             "Content-Type": "application/json",
             "Authorization": f"Bearer {token}",
-            "User-Agent": "codex-launcher/3.10.4",
+            "User-Agent": "ai-sdk/openai-compatible/1.0.25/codebuff",
             "x-codebuff-model": model,
         })
         try:
@@ -383,7 +383,7 @@ def _codebuff_start_run(token, agent_id):
     req = urllib.request.Request(url, data=body, headers={
         "Content-Type": "application/json",
         "Authorization": f"Bearer {token}",
-        "User-Agent": "codex-launcher/3.10.4",
+        "User-Agent": "ai-sdk/openai-compatible/1.0.25/codebuff",
     })
     try:
         resp = urllib.request.urlopen(req, timeout=15)
@@ -416,7 +416,7 @@ def _codebuff_finish_run(token, run_id, status="completed"):
     req = urllib.request.Request(url, data=body, headers={
         "Content-Type": "application/json",
         "Authorization": f"Bearer {token}",
-        "User-Agent": "codex-launcher/3.10.4",
+        "User-Agent": "ai-sdk/openai-compatible/1.0.25/codebuff",
     })
     try:
         urllib.request.urlopen(req, timeout=10)
@@ -1570,6 +1570,10 @@ _PROVIDER_POLICIES = {
                    "tool_output_limit": 6000, "max_input_items": 35, "compaction": "balanced"},
     "openadapter": {"reasoning_mode": "off", "max_tokens": 32768, "strip_reasoning": True,
                     "tool_output_limit": 6000, "max_input_items": 30, "compaction": "balanced"},
+    "cloudcode-pa": {"compaction": "aggressive", "context_size": 1000000,
+                     "tool_output_limit": 6000, "max_input_items": 60},
+    "googleapis": {"compaction": "balanced", "context_size": 1000000,
+                   "tool_output_limit": 6000, "max_input_items": 80},
 }
 
 def provider_policy(target_url=None, backend=None):
@@ -1588,12 +1592,14 @@ _MODEL_CONTEXT = {
     "claude-sonnet": 200000, "claude-haiku": 200000,
     "glm-5.1": 128000, "glm-5": 128000, "glm-4": 128000,
     "deepseek": 64000, "gemini-2.5-flash": 1000000, "gemini-2.5-pro": 2000000,
+    "gemini-3-flash": 1000000, "gemini-3.5-flash-low": 1000000,
+    "gemini-3.1-pro-low": 2000000,
     "gemini-3.5-flash": 1000000, "gemini-3.1-pro": 2000000,
     "Gemini 3.5 Flash": 1000000, "Gemini 3.1 Pro": 2000000,
     "Claude Sonnet 4.6": 200000, "Claude Opus 4.6": 200000,
     "GPT-OSS 120B": 128000,
-    "claude-sonnet-4.6-thinking": 200000, "claude-opus-4.6-thinking": 200000,
+    "claude-sonnet-4-6": 200000, "claude-opus-4-6-thinking": 200000,
-    "gpt-oss-120b": 128000,
+    "gpt-oss-120b-medium": 128000,
     "mimo": 32768, "minimax": 32768, "kimi": 128000,
     "_default": 32768,
 }
@@ -5318,9 +5324,10 @@ class Handler(http.server.BaseHTTPRequestHandler):
              metadata = {
                  "run_id": run_id,
                  "cost_mode": "free",
+                 "client_id": secrets.token_hex(7)[:13],
              }
              if instance_id:
-                 metadata["codebuff_instance_id"] = instance_id
+                 metadata["freebuff_instance_id"] = instance_id
 
              chat_body = {
                  "model": model,
@@ -5342,7 +5349,7 @@ class Handler(http.server.BaseHTTPRequestHandler):
              headers = {
                  "Content-Type": "application/json",
                  "Authorization": f"Bearer {token}",
-                 "User-Agent": "codex-launcher/3.10.4",
+                 "User-Agent": "ai-sdk/openai-compatible/1.0.25/codebuff",
                  "x-codebuff-model": model,
              }
              if instance_id:
@@ -5490,9 +5497,9 @@ class Handler(http.server.BaseHTTPRequestHandler):
         instance_id = _codebuff_get_session(token, model)
         messages = _cb_input_to_messages(input_data, instructions)
         _codebuff_hard_disable_reasoning(messages)
-        metadata = {"run_id": run_id, "cost_mode": "free"}
+        metadata = {"run_id": run_id, "cost_mode": "free", "client_id": secrets.token_hex(7)[:13]}
         if instance_id:
-            metadata["codebuff_instance_id"] = instance_id
+            metadata["freebuff_instance_id"] = instance_id
         chat_body = {
             "model": model, "messages": messages, "stream": stream,
             "max_tokens": max(body.get("max_output_tokens", 0), 64000),
@@ -5508,7 +5515,7 @@ class Handler(http.server.BaseHTTPRequestHandler):
         if body.get("tool_choice"):
             chat_body["tool_choice"] = body["tool_choice"]
         target = f"{_CODEBUFF_API_URL}/api/v1/chat/completions"
-        headers = {"Content-Type": "application/json", "Authorization": f"Bearer {token}", "User-Agent": "codex-launcher/3.10.4", "x-codebuff-model": model}
+        headers = {"Content-Type": "application/json", "Authorization": f"Bearer {token}", "User-Agent": "ai-sdk/openai-compatible/1.0.25/codebuff", "x-codebuff-model": model}
         if instance_id:
             headers["x-codebuff-instance-id"] = instance_id
         print(f"[codebuff] retry POST {target} model={model} stream={stream} run={run_id} (thinking disabled via DeepSeek native)", file=sys.stderr)