Why: precheck missed uninitialized submodules (git submodule status '-'
prefix), and the branch protection configured today plus the second live
probe outcome must be recorded honestly in the matrices.
Evidence: platform negative: direct push to protected main rejected
(pre-receive hook declined, Logging-System probe); second write-guard probe
confirmed session-start config loading (no hook run in the pre-config
session log).
Impact: precheck sub_dirty now counts '-' prefixed entries; A3 registered
enforced at platform layer across 11 repos; zcode matrix pending-live
annotated with the loading-timing proof.
Refs: policy/tool-adaptation-matrix.md; policy/tool-adaptation-zcode.md
Why: git unconditionally refuses worktree remove when the tree contains
gitlinks (index-level check; deinit does not bypass it), so the PR#4 fix
path still failed on the second real task.
Evidence: after deinit the worktree was clean and submodule dirs empty, yet
remove refused; rm -rf + worktree prune is the documented workaround and
was proven manually on the empty-list task worktree.
Impact: task-finish now completes the recycle path automatically after its
merge verification; no guard weakened.
Refs: Agent-System-Dev PR#4; policy/tool-adaptation-matrix.md A5
Why: git refuses to remove a worktree with initialized submodules; the first
real dogfood run of task-finish hit this on the empty-list fix task.
Evidence: the fix task's worktree recycled only after manual force-remove;
deinit-then-remove path exercised on the same state afterwards.
Impact: finish deinitializes submodules, removes, prunes, and deletes the
remote branch; unmerged-result guard unchanged.
Refs: .task/fix-empty-list-json.md
Why: agents skipped triggered reading and wrote into shared checkouts holding
other tasks' in-flight changes; the 2026-09-30 empty-list incident session
found 24 overlapping in-flight files only by accident at first write.
Evidence: positive/negative suite in a real scratch repo passed 19/19
(precheck READY/BUSY/SYNC_REQUIRED, start refuse/establish, hook main/badname/
longsubject refusals, sync checkpoint, finish recycle and abandon double-
confirm); the suite caught three real defects (pipefail empty-grep abort,
worktree gitdir COMMIT_EDITMSG resolution, message checks in the wrong hook
phase).
Impact: make setup enables pre-commit/commit-msg hooks; make precheck/task-
start/task-sync/task-finish provide the governed path; no existing workflow
removed. AGENTS.md carries the resident gate rules.
Refs: Development-Guidelines 0.1.0-draft.7; task card .task/delivery-mechanism.md
weichen