Adds the per-version adaptation record (docs/plans/2026-09-21-…-adaptation.md),
rewrites AGENTS.md §3 for the new baseline (the two silent contract breaks, the
terminal/browser handoff, the new official plugin-manager surface, the three
ui-primitives breaks, the widened primitives bare-import set), and updates both
READMEs and the integration guide for the v0.20.0 feature set.
Also retires the support text the terminal deletion made false: the install
flow is one step again (no build-script approval), the FAQ's two node-pty rows
collapse into one pointing at DSH's own terminal, the platform note no longer
promises prebuilt native binaries (there are no native deps left), and the
installers drop the -Repair mode and their allowBuilds writes along with
pnpm-workspace.yaml's now-empty allowBuilds block. Removes the dead
browserNoSandboxWarning locale key (its setting went with the plugin's browser)
and tightens theme.spec's capsule guard so a literal colour fails it.
The e2e resolver now refuses a PATH that is not on the baseline line:
this machine's PATH is 0.1.6-alpha.1, and running the mount lane against
it fails at 'the bundle was not registered' with a zero exit from the CLI —
a misleading dead end worth one explicit error instead.
DSH 0.1.6-alpha.2 ships a right-Sidebar terminal and a right-Sidebar browser
of its own. Both were things this plugin had built from scratch, so keeping
them meant two implementations of one surface plus a plugin that shadows a
host type the product is actively developing.
Terminal: the plugin's whole PTY stack goes — the UI-tab manager, the
agent-owned registry, the lazy node-pty loader, the eight model-facing
terminal_* tools, the xterm view and its font/link/scrollback helpers, and
the cross-session 'pinned terminal' rail that existed only to keep a terminal
alive across a session switch. The host's terminal kind becomes the only
provider, which also retires the node-pty dependency, its pnpm allowBuilds
entry, and the installer's -Repair mode (issue #140's whole class of
'node-pty failed to load' support).
Model-facing capability note: the plugin used to inject terminal_* tools
(off by default). Those are the model's only cross-call persistent terminal,
and DSH's own equivalent (@deepseek-ai/dsh-tool-terminal) is not mounted by
any shipped bundle, so removing them leaves the model with the one-shot
bash/pwsh tools only. That is the accepted cost of not maintaining a second
PTY surface; the README documents how to enable the upstream toolset.
Browser: the plugin's browser tab type is dropped, so the host's own browser
kind owns embedded pages. The DOM-level link takeover STAYS (it is the only
thing that can route an https link to the system browser by protocol, which
the host does not do) but now delegates to the host's browser tab via
ctx.sidebarRight.openTab('browser', …) with a window.open fallback, and the
two settings that only ever configured the plugin's own iframe (sandbox
escape hatch, loopback allowlist) go with it — along with the host-side
browser.probe route they fed.
Cards: the empty-pane welcome cards adopt the host's guide-capsule recipe
(0.5px l4 hairline, 24px radius, layer-1 fill, 56px floor, 14px/20px padding)
so the plugin's 'pick what opens here' surface reads as the same design as
DSH's own. A theme.spec guard pins the geometry and the token-only paint —
including that the upstream-only --dsw-alias-bg-l1/-l2 spellings (defined
nowhere, so their declarations are silently dropped upstream) never appear
here.
Also drops the dead state the removed features left behind (SidebarTab.pin,
nextTerminal, agentWaits, bottomOpenedOnce, the agent-tab helpers, the
pinned-tab memo key), re-points every test fixture that used them at
surviving equivalents, and prunes the specs of the deleted features.