dsh-codex
Run the following command in DeepSeek Harness:
dsh plugin install ryanzhou/dsh-codex
Paste the following prompt into your AI chat to install this plugin:
Install this plugin in DeepSeek Harness by running dsh plugin install ryanzhou/dsh-codex; the full source is available at https://github.com/ryanzhou/dsh-codex
About this plugin
GPT-5.6 was post-trained around Codex tool schemas, prompt conventions, and result formats, so it often underperforms in DSH's default Standard mode. dsh-codex injects a full Codex-style tool environment into DSH without replacing the underlying runtime, letting GPT models work within the toolchain they were designed for.
Core capabilities include grammar-constrained apply_patch custom tools, Codex-shaped exec_command/write_stdin unified execution with yielded background sessions and interactive PTY support, native Web Bash rows with a live-process-only background terminal list, update_plan and request_user_input function tools, and /plan collaboration plus /goal long-running work, all grounded in DSH's native sandbox, approval, attachment, and tool-presentation primitives.
Built for users who drive both GPT and DeepSeek models in a single DSH installation and want a Codex-grade experience on the GPT side without maintaining a separate agent stack.
Use Cases
- Running GPT and DeepSeek side by side in a single DSH instance
- Aligning GPT-5.6 tool schemas and prompts with its Codex post-training distribution
- Getting Codex-grade apply_patch and background-terminal UX without managing a separate agent stack
Best For
- DSH power users driving both GPT and DeepSeek models daily
- Developers who want a native Codex tool experience on the GPT side
- Engineers enforcing one sandbox and approval policy across multiple model families
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