The per-session random write SID forced a full tree propagation per
session per server lifetime (minutes on large workspaces). The write
SID is now the per-workspace identity derived from the canonical
workspace path (workspaceWriteSid: sha256 -> S-1-4-x-y), stored
nowhere: the workspace-root ACE materializes once per workspace per
machine and every later provision hits the exact-ACE skip.
- workspace ACEs are STANDING (never revoked - the reuse cache); temp
ACEs stay revocable (disposed with the provider), so an inheritable
ACE never outlives its session's temp dir on the ambient temp root
- AclSandbox requires the write SID under workspace-write; read-only
parses/grants nothing; the runner derives the SID itself (the
--write-sid flag's presence still marks the seam-managed contract)
- the acl-session record drops writeSid (sessionId/workspace/tempDir
remain): the SID-tamper surface and its validation are gone
- sandbox-local holds two grant maps: standing workspace grants and
revocable per-session temp grants
Docs (README pair, design note pair, catalogs, type-equiv) and the
acl-session/grant/acl/probe/runner suites updated; workspace-sid.spec
pins the derivation contract.
Confine Windows command execution through a WRITE_RESTRICTED token whose restricting SIDs carry an orphan-SID write allowlist, ported from https://github.com/huoyaoyuan/windows-acl-restrict-poc (@ 10e4dfb). Every Win32 call is checked and fails closed - the POC silently ran children with the FULL token when CreateRestrictedToken failed.
- @deepseek-ai/dsh-sandbox-windows-acl: koffi primitives verified against the MinGW Windows headers (verify/abi-probe.cpp) plus the confinement runner ([node, runner, --workspace, --temp, --mode, --, argv...]: kill-on-close job, stdio passthrough, exit-code mirroring, windows-acl-run: failure signature, grant revocation). read-only = strict zero grants (NUL device not writable; documented). Windows-only execution: exempted from the Linux coverage lane (windowsOnlyCoverageExclusions).
- @deepseek-ai/dsh-sandbox-local: PLATFORM_CHAINS.win32 filled with the windows-acl runner (full enforcement, ACL denial dialect, runner-failure rules).
- @deepseek-ai/dsh-pwsh-sandbox: sandbox-consuming pwsh executor (call-for-call mirror of dsh-bash-sandbox) over a new argv-level seam in dsh-pwsh-local; per-file coverage complete via the fake-provider spec.
- bundle/base: the Windows platform layer mounts the confined pwsh roster - sandbox/policy/fs-sandbox/permission/approval re-enabled, the POSIX bash stack stays disabled.
Co-authored-by: Huo Yaoyuan <huoyaoyuan@hotmail.com>
