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deepseek-harness/packages/pty
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pty/ — persistent PTY capability family

English | 中文

PTY stands for Pseudo-Terminal(伪终端). This capability provides persistent, owner-scoped terminal sessions for workflows that require state across tool calls or interactive stdin. PTY complements the one-shot bash and filesystem tools; it does not replace their stronger per-operation contracts.

Package Role ctx key
pty (@deepseek-ai/dsh-pty) Backend registry, branded ids, exact-Agent ownership, session operations, and awaited cleanup ctx.pty
pty-local (@deepseek-ai/dsh-pty-local) Local node-pty backend, readiness detection, bounded terminal state, sandboxing, and process-session supervision registers on ctx.pty
tool-pty (@deepseek-ai/dsh-tool-pty) Six model-facing tools and generic task integration for background sends registers on ctx.tools
tool-bash-persistent (@deepseek-ai/dsh-tool-bash-persistent) One model-facing bash backed by an owner-scoped reusable PTY shell consumes ctx.pty, registers on ctx.tools

The design and deferred boundaries live in the persistent PTY Agent Note.