Review feedback (tianyicui, PR #657 inline): the missing-service message should mention dsh-tasks, which defines ctx.tasks, rather than promoting a specific backend. The seam's own surfaces (README, the direct-mount fence) keep pointing at implementations, so the pointer chain still lands on dsh-tasks-local without the producer strings going stale when another backend becomes the recommended default. Agent Note updated accordingly (en+zh, re-recorded).
pty/ — persistent PTY capability family
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 |
The design and deferred boundaries live in the persistent PTY Agent Note.