songoao25/dsh-chatgpt-subscription

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A DeepSeek Harness plugin that lets you sign in with your ChatGPT account using the official OAuth flow and chat with ChatGPT models inside DSH, consuming your ChatGPT Plus / Pro subscription quota.

One-click official sign-in — Click 授权登录 on the new 「订阅」page in DSH Settings → your browser opens OpenAI's official authorization page → approve → you're bound. No API keys, no command line, no config file editing.

Features

• Official OAuth binding — Full PKCE + state flow against auth.openai.com, the same official mechanism used by Codex CLI and OpenCode. Your tokens are exchanged directly with OpenAI; the plugin never sees or stores your password.
• Strict official mode — Only an authorization completed through this plugin's settings page counts as bound. Your existing codex CLI login is left alone and is never silently reused.
• ChatGPT models in DSH — After binding, ChatGPT models (e.g. gpt-5.6-terra, gpt-5.5, gpt-5.4) appear in the DSH model switcher as provider ChatGPT. Selecting one talks to ChatGPT directly and consumes your subscription quota.
• Token guardian — The access token is auto-refreshed before expiry (JWT-aware, refresh threshold 45 min) and injected into DSH credentials. Runs once at startup and every 30 minutes; on failure it keeps the last known good state instead of crashing.
• Bind status page — The Settings → 订阅 page shows bound/unbound status, token expiry and remaining time, with 授权登录 / 重新授权 / 解绑 actions.
• Companion to Bottom Info Bar — This plugin owns binding and token maintenance; the Bottom Info Bar reads the token to display your ChatGPT quota (5-hour / weekly / monthly windows and reset times). You can use this plugin without the info bar, but the info bar's ChatGPT quota display requires this plugin.

Requirements

• DeepSeek Harness (dsh CLI) running the web interface (dsh web)
• pnpm (used by dsh plugin)
• A ChatGPT Plus or Pro subscription (or a plan that includes Codex quota)

Installation

Option 1 — One-command script (recommended)

git clone https://github.com/songoao25/dsh-chatgpt-subscription.git
cd dsh-chatgpt-subscription
./install.sh                # installs to the "web" profile; use --profile <name> to override

Option 2 — dsh plugin command

git clone https://github.com/songoao25/dsh-chatgpt-subscription.git
cd dsh-chatgpt-subscription
npm run build               # build lib/ from src/
dsh plugin --profile web add .

Restart dsh web after installing. Plugins are composed when the host process starts; a page refresh alone is not enough.

Usage

1. Restart dsh web, then open Settings (⚙️) in the sidebar.
2. Click 订阅 (right below 模型).
3. Click 授权登录 — your browser opens the official OpenAI sign-in page.
4. Sign in with your ChatGPT account and approve. The page shows 已绑定 when done.
5. Open a new conversation, switch the model to a ChatGPT model (provider ChatGPT, e.g. gpt-5.6-terra) and chat — usage counts against your subscription.

If the browser tab doesn't open automatically, the page also calls window.open as a fallback; allow pop-ups for DSH if prompted.

Security

• Tokens are stored only in ~/.codex/auth.json (0600, the standard location shared with Codex CLI) and in DSH's credential store — never in logs, never in this repository.
• The local OAuth callback server binds 127.0.0.1 only, validates state (CSRF protection), and times out after 5 minutes.
• Unbinding removes the binding flag and the injected credential, but keeps ~/.codex/auth.json untouched — your Codex CLI login stays intact.
• Zero runtime dependencies (only react as a peer for the client half); no network calls except the official OpenAI endpoints.

Uninstall

cd dsh-chatgpt-subscription
./uninstall.sh              # removes the plugin and the injected route/credential

Uninstall keeps ~/.codex/auth.json (your Codex CLI login) and only cleans what this plugin added: the binding flag, the openai-codex provider route, and the OPENAI_CODEX_API_KEY credential.

FAQ

Q: Do I need a ChatGPT Plus subscription? Yes — the plugin connects your ChatGPT account; chatting with ChatGPT models consumes your subscription quota (models available depend on your plan, e.g. gpt-5.3-codex-spark requires a higher plan).

Q: Does this share my tokens? No. Everything happens between your machine and auth.openai.com / chatgpt.com. Tokens never leave your machine and are never logged.

Q: What if the token expires? The plugin auto-refreshes it before expiry. If refresh fails (e.g. revoked), the settings page shows a clear hint to re-authorize.

Q: Does this affect my Codex CLI login? No. The plugin writes to the same standard ~/.codex/auth.json location and preserves its structure; unbinding doesn't delete it.

Q: Can I see my quota? Install the companion Bottom Info Bar plugin — it reads the token this plugin maintains and displays your ChatGPT quota (remaining percent and reset time) in the bottom info bar.

License

MIT © 2026 songoao25