dsh-claude-oauth

Integrating a Claude Pro or Max subscription into DeepSeek Harness used to mean running an OAuth flow in the terminal, copying a long token string, and hand-editing YAML config files with every expiry. dsh-claude-oauth collapses that entire chain into a single browser click: open DSH Settings, find the Claude section, click "Sign in with Google / Gmail", authorise in the popped-out tab, and return to see your account, subscription tier, and available models already active. Under the hood it runs a dual-stack PKCE OAuth engine that listens on both IPv4 (127.0.0.1) and IPv6 (::1) loopback, sidestepping the Windows localhost-resolution pitfalls that used to break the callback, while keeping the whole authentication transparent to the user.

Once authenticated, the plugin synchronises credentials to three locations automatically: it writes to ~/.claude/.credentials.json so the official Claude Code CLI shares the same authorisation, updates the OAuth token fields in ~/.dsh/.credentials.yaml, and mounts the active model list under the anthropic provider in ~/.dsh/settings.yaml. The model catalogue is fetched live from GET /v1/models, so every new Claude release from Sonnet 4.5 to Opus 4.5 and Haiku 4.5 appears without any manual list maintenance. Real-time quota progress bars for both the 5-hour and 7-day windows, along with reset countdowns, are displayed in Settings and beside the chat composer so you always know how much subscription credit remains.

This plugin is built for developers who already carry a Claude Pro or Max subscription and rely on DeepSeek Harness as their daily driver. You no longer need to re-run CLI token flows every time credentials expire, nor juggle multiple config files by hand—one browser authorisation and the plugin keeps everything in sync behind the scenes.