From 5eba6917f9da8e75b8ed05b805c51a6f85d17c15 Mon Sep 17 00:00:00 2001
From: hkwuks <25031515+hkwuks@users.noreply.github.com>
Date: Wed, 23 Sep 2026 00:52:08 +0800
Subject: [PATCH 1/2] chore: archive the task-approve task

Complete 454ac4 after PR #53 merged.
---
 TaskFlowDocs/{ => achieved}/2026-09-23-task-approve/plan.md | 2 +-
 TaskFlowDocs/{ => achieved}/2026-09-23-task-approve/prd.md  | 2 +-
 TaskFlowDocs/todo.md                                        | 6 +++---
 3 files changed, 5 insertions(+), 5 deletions(-)
 rename TaskFlowDocs/{ => achieved}/2026-09-23-task-approve/plan.md (99%)
 rename TaskFlowDocs/{ => achieved}/2026-09-23-task-approve/prd.md (99%)

diff --git a/TaskFlowDocs/2026-09-23-task-approve/plan.md b/TaskFlowDocs/achieved/2026-09-23-task-approve/plan.md
similarity index 99%
rename from TaskFlowDocs/2026-09-23-task-approve/plan.md
rename to TaskFlowDocs/achieved/2026-09-23-task-approve/plan.md
index 584460c..8273fd4 100644
--- a/TaskFlowDocs/2026-09-23-task-approve/plan.md
+++ b/TaskFlowDocs/achieved/2026-09-23-task-approve/plan.md
@@ -1,7 +1,7 @@
 # Plan — Record Approval from a hook instead of hand-editing the five fixed fields
 
 > Task version: v1
-> Status: in_progress
+> Status: completed
 
 No spec required — small, self-contained task.
 
diff --git a/TaskFlowDocs/2026-09-23-task-approve/prd.md b/TaskFlowDocs/achieved/2026-09-23-task-approve/prd.md
similarity index 99%
rename from TaskFlowDocs/2026-09-23-task-approve/prd.md
rename to TaskFlowDocs/achieved/2026-09-23-task-approve/prd.md
index 5cd1f71..87d4d5b 100644
--- a/TaskFlowDocs/2026-09-23-task-approve/prd.md
+++ b/TaskFlowDocs/achieved/2026-09-23-task-approve/prd.md
@@ -1,7 +1,7 @@
 # Record Approval from a hook instead of hand-editing the five fixed fields
 
 > Task version: v1
-> Status: in_progress
+> Status: completed
 
 ## Goal
 
diff --git a/TaskFlowDocs/todo.md b/TaskFlowDocs/todo.md
index c011b11..ff6eeae 100644
--- a/TaskFlowDocs/todo.md
+++ b/TaskFlowDocs/todo.md
@@ -702,15 +702,15 @@ Every direct request or imported requireme
 ## Record approval in the plan from a hook instead of hand-editing four fixed-forma
 
 - ID: TF-20260918-454ac4
-- Status: in_progress
+- Status: done
 - Priority: normal
 - Owner: Codex
 - Source: user request
 - Added: 2026-09-18
 - Updated: 2026-09-23
 - Goal: Record approval in the plan from a hook instead of hand-editing four fixed-format fields, and fix hooks/version writing an Approval block that disagrees with hooks/task's template.
-- Task: `TaskFlowDocs/2026-09-23-task-approve/`
-- Next action: Complete PRD / Spec / Plan and request approval.
+- Task: `TaskFlowDocs/achieved/2026-09-23-task-approve/`
+- Next action: None — completed and archived.
 - Notes: **2026-09-18 用户提出**：手改 Approval 块能否自动化。判定——`## Approval` 的字段里只有 `Approved by` 是语义的（必须由人表态），其余都可推导：`Status` 是该子命令的动词，`Approved at` 是当天日期（hook 已有 `today`），`Approved version` 直接读 plan 自己的 `> Task version:` 行，`Approved scope` 由存在的核心文档推出。`skills/taskflow/SKILL.md` 已把模板钉成「`- Approved by:` 起的四行」，格式无需 Agent 判断。
   **先修一个现成的自相矛盾**：`hooks/version` 的重置只写 `- Approved by/at/version/scope: pending` 四条，**不写 `- Status:`**；而 `hooks/task` 的模板是**五**行、带 `- Status: requested`。于是经 `version` 迁移过的任务，Approval 块是 version 的字段集加上一条滞留在旧值的 `- Status:` 行——两个 hook 对同一块内容的形状意见不一致。**本任务就是实例**：v1→v2 后 `- Status:` 留在 `checking` 一路没人管，直到 `complete` 读它才发现对不上（`require_approval` 用的是 `grep -qx -- "- Status: approved"`）。
   **时间格式也打架**：模板写 `YYYY-MM-DD HH:mm +08:00`，`version` 复位只写 `pending`。若自动化，`today` 目前只有 `+%Y-%m-%d`，要扩出分钟与时区。

From c55ac53ef526e617848725c57e370fbc5c60c25f Mon Sep 17 00:00:00 2001
From: hkwuks <25031515+hkwuks@users.noreply.github.com>
Date: Wed, 23 Sep 2026 01:02:33 +0800
Subject: [PATCH 2/2] feat: report orphan task directories in repository-check

A directory with prd/plan that no Todo - Task: line names is a lost
record beside live documents. repository-check lists active and
achieved orphans and sets needs; the hook never deletes. Uncommitted
artifact reporting stays needs-neutral. Smoke covers both directions
of the reference.
---
 .../2026-09-23-orphan-task-dirs/plan.md       |  98 ++++++++++++++
 .../2026-09-23-orphan-task-dirs/prd.md        | 127 ++++++++++++++++++
 TaskFlowDocs/todo.md                          |   8 +-
 hooks/repository-check                        |  29 ++++
 hooks/smoke-test                              |  65 +++++++++
 5 files changed, 323 insertions(+), 4 deletions(-)
 create mode 100644 TaskFlowDocs/2026-09-23-orphan-task-dirs/plan.md
 create mode 100644 TaskFlowDocs/2026-09-23-orphan-task-dirs/prd.md

diff --git a/TaskFlowDocs/2026-09-23-orphan-task-dirs/plan.md b/TaskFlowDocs/2026-09-23-orphan-task-dirs/plan.md
new file mode 100644
index 0000000..76682a8
--- /dev/null
+++ b/TaskFlowDocs/2026-09-23-orphan-task-dirs/plan.md
@@ -0,0 +1,98 @@
+# Plan — Detect a task directory that no Todo entry references
+
+> Task version: v1
+> Status: in_progress
+
+No spec required — small, self-contained task.
+
+## Reference Pointers
+
+- `hooks/repository-check` — uncommitted artifact loop (~69–90); add orphan
+  pass beside it.
+- `hooks/smoke-test` — `== repository-check … ==` sections (~1078+).
+- `TaskFlowDocs/todo.md` — `- Task:` backticked paths.
+- Predecessor: `TF-20260916-ab381b` (isolation + uncommitted report).
+
+## Related Tasks
+
+- `TF-20260916-a357ee` — this task’s ID.
+- `TF-20260916-ab381b` — done; different direction (misplaced/uncommitted).
+
+## Skills / Tools Used
+
+- `Unaided — no capability applied to this phase; considered: shell text
+  processing and the repository's own check conventions, all read directly.`
+
+## Preconditions
+
+- [x] Docs/rules inspected; worktree `.worktrees/feat-orphan-task-dirs` on
+  `feat/orphan-task-dirs` from `main` = `5eba691`.
+- [x] Incident, direction, and ab381b boundary recorded in PRD Background.
+
+## Approval
+
+- Status: approved
+- Approved by: user
+- Approved at: 2026-09-23
+- Approved version: v1
+- Approved scope: PRD / Plan
+
+## Steps
+
+### Step 1 — repository-check orphan report
+
+- Goal: R1–R5.
+- Files: `hooks/repository-check`.
+- Checklist:
+  - [x] Collect `- Task:` backticked paths from `todo.md`.
+  - [x] Scan `TaskFlowDocs/*/` and `TaskFlowDocs/achieved/*/` with prd or
+        plan; report dirs not referenced (trailing-slash tolerant).
+  - [x] Orphans set `needs=1`; uncommitted artifacts unchanged.
+  - [x] `bash -n hooks/repository-check`.
+- Acceptance: A, B, C.
+- Status: done
+
+### Step 2 — smoke
+
+- Goal: R6/R7.
+- Files: `hooks/smoke-test`.
+- Checklist:
+  - [x] Unreferenced active + achieved → listed, exit 2.
+  - [x] After adding matching `Task:` → not listed.
+  - [x] Existing repository-check sections still green.
+- Acceptance: D, E.
+- Status: done
+
+## Checkpoints
+
+- After Step 1: `bash -n` + A/B/C fixtures.
+- After Step 2: one full suite; no chained mutations; pkill if killed.
+
+## Verification / Review
+
+| Check | Result |
+|---|---|
+| `bash -n hooks/repository-check` | pass |
+| `bash -n hooks/smoke-test` | pass |
+| `bash hooks/smoke-test` | `ALL SMOKE PASSED` |
+| `git diff --check` | clean |
+| Active orphan listed / ref clears (A/B) | pass (suite) |
+| Achieved orphan (C) | pass (suite) |
+| Existing check sections (D) | pass (suite) |
+
+## Change Log
+
+- v1 — planning; Q1 orphan sets needs, Q2 no reverse hard-fail, Q3 no
+  special-case names.
+- v1 — approved (user, 2026-09-23); Steps 1–2 done; suite green.
+
+## Follow-ups
+
+- Housekeeping commit `5eba691` is on local main only until next push.
+- If live tree reports the known historical achieved orphan after merge:
+  human decides tombstone vs extra Todo line (data, not code).
+
+## Version History
+
+- v1 — planning.
+- v1 — approved (user, 2026-09-23); Steps 1–2 done; suite green.
diff --git a/TaskFlowDocs/2026-09-23-orphan-task-dirs/prd.md b/TaskFlowDocs/2026-09-23-orphan-task-dirs/prd.md
new file mode 100644
index 0000000..ffc259f
--- /dev/null
+++ b/TaskFlowDocs/2026-09-23-orphan-task-dirs/prd.md
@@ -0,0 +1,127 @@
+# Detect a task directory that no Todo entry references
+
+> Task version: v1
+> Status: in_progress
+
+## Goal
+
+`hooks/repository-check` reports every task directory (active and
+`achieved/`) whose path no `- Task:` line in `todo.md` names — a lost Todo
+record must not leave orphaned documents invisible. Report only; the hook
+never moves or deletes files.
+
+## Background / Confirmed Facts
+
+Measured on `main` = `5eba691`, 2026-09-23, worktree
+`.worktrees/feat-orphan-task-dirs`. Nothing inferred.
+
+**Incident (Notes, 2026-09-16):** while staging PR #28 for one task, Todo
+entries for B/C/D were stripped; `git checkout -- TaskFlowDocs/todo.md`
+then restored the file, but for a window the three directories had **no
+Todo reference** (workspace only; restored same day). Historical example
+still true on this tree: `TaskFlowDocs/achieved/2026-09-10-repository-document-placement/`
+— never had a Todo entry in any commit.
+
+**Direction (Notes):** only **directory → Todo**. Reverse (Todo → missing
+directory) was measured empty on 2026-09-16; not part of this check unless
+it costs nothing extra (see Open Questions).
+
+**`ab381b` (done)** fixed isolation-before-documents and taught
+`repository-check` to list **uncommitted** task artifacts. Those lines never
+set `needs`. They do **not** answer “directory exists, Todo forgot it” —
+committed and archived orphans are invisible to that loop today
+(`TaskFlowDocs/*/` only, and only when not in `HEAD`).
+
+**`repository-check` shape (hooks/repository-check):** read-only; artifact
+section prints and leaves `needs` alone; final `STATUS: pass` (0) or
+`needs-user-input` (2). Existing smoke sections: general status + uncommitted
+artifacts without changing verdict.
+
+**Todo `Task:` values that *do* reference a directory** (backticked):
+
+- `TaskFlowDocs/<task>/`
+- `TaskFlowDocs/achieved/<task>/`
+
+Non-references: `Not promoted.`, `None — …`, template placeholders.
+
+**Task directory =** has `prd.md` or `plan.md`. That already skips
+`repository-docs/`, `todo.md`, and `achieved/` itself. Must also scan
+`TaskFlowDocs/achieved/*/` — current loop does not.
+
+**Survey on `5eba691`:** with that rule, **0 active + 0 achieved orphans**
+among dirs that have core docs *except* the known historical achieved dir
+if its Task: is still missing — counted in implementation smoke fixtures,
+not by mutating real history here. (Fixture-driven; live tree may report
+the known achieved orphan until a human adds a tombstone or accepts the
+line.)
+
+## Requirements
+
+- **R1.** In `hooks/repository-check`, after the uncommitted-artifacts
+  section (or adjacent), report **orphan task directories**: every
+  `TaskFlowDocs/<id>/` and `TaskFlowDocs/achieved/<id>/` that has `prd.md`
+  or `plan.md`, for which no `- Task:` line in `TaskFlowDocs/todo.md` equals
+  that path with or without a trailing backtick slash.
+- **R2.** Read-only. Never delete, move, or rewrite Todo/dirs.
+- **R3.** Orphan findings **set `needs=1`** (STATUS `needs-user-input`,
+  exit 2) — a lost Todo record is actionable integrity, unlike the
+  informational uncommitted-artifact lines which stay `needs`-neutral.
+- **R4.** Empty orphan set → no behavior change vs today for that condition
+  (does not by itself fail a clean repo that already passes).
+- **R5.** Output names each path once under a clear heading (e.g.
+  `Orphan task directories:`) with one path per line.
+- **R6.** Smoke: (a) fixture with an unreferenced active dir → report lists
+  it, status 2; (b) same dir referenced by `- Task:` → not listed; (c)
+  achieved/ orphan listed; (d) clean fixture with only referenced dirs →
+  no orphan section / still pass when nothing else is wrong; (e) existing
+  repository-check sections still green.
+- **R7.** `bash hooks/smoke-test` → `ALL SMOKE PASSED`.
+
+## Acceptance Criteria
+
+- **A.** Fixture `TaskFlowDocs/2026-01-01-lost/{prd,plan}.md` + Todo with no
+  matching `Task:` → line contains that path; exit 2.
+- **B.** Add `- Task: \`TaskFlowDocs/2026-01-01-lost/\`` → path gone from
+  orphan list.
+- **C.** `TaskFlowDocs/achieved/2026-01-01-gone/` with core docs, no Task:
+  → listed.
+- **D.** Uncommitted-artifact fixture still reports staged/untracked and
+  does not require an orphan to exercise that path.
+- **E.** Suite green; `bash -n hooks/repository-check`.
+
+## In Scope
+
+- `hooks/repository-check` orphan report.
+- `hooks/smoke-test`.
+
+## Out of Scope
+
+- Auto-delete or auto-repair orphans.
+- Reverse check (Todo → missing dir) as a hard requirement (optional
+  freebie only if free; see Q2).
+- New hook binary.
+- Changing uncommitted-artifact `needs` neutrality.
+- Rewriting historical achieved records to invent Todo entries.
+
+## Risks / Deferred Items
+
+- Known historical achieved orphan may turn real repos to exit 2 until a
+  human records a tombstone/entry — **mitigate:** report is accurate;
+  fix is data, not code. Note in Change Log if live survey trips.
+- `Task:` written without backticks would be missed — current repo uses
+  backticks for real paths; match backticked form only (R1) unless a
+  non-backticked path appears (survey: none for real dirs).
+
+## Open Questions
+
+1. Orphan sets `needs` — **Recommend: yes (R3)**; distinct from uncommitted
+   artifacts.
+2. Also assert Todo → dir exists — **Recommend: no hard fail this PR**;
+   Notes said measured empty; add only if a free one-liner in the same
+   loop, still report-only. Default: skip to keep the diff small.
+3. Live known achieved orphan — **Recommend: report it**; do not special-
+   case names.
+
+## Version History
+
+- v1 — planning.
diff --git a/TaskFlowDocs/todo.md b/TaskFlowDocs/todo.md
index ff6eeae..613ec75 100644
--- a/TaskFlowDocs/todo.md
+++ b/TaskFlowDocs/todo.md
@@ -586,15 +586,15 @@ Every direct request or imported requireme
 ## Detect a task directory that no Todo entry references
 
 - ID: TF-20260916-a357ee
-- Status: inbox
+- Status: in_progress
 - Priority: normal
 - Owner: Codex
 - Source: user review
 - Added: 2026-09-16
-- Updated: 2026-09-16
+- Updated: 2026-09-23
 - Goal: Detect a task directory that no Todo entry references, so a lost Todo record cannot leave orphaned task documents behind.
-- Task: Not promoted.
-- Next action: Clarify whether this belongs in the existing `hooks/todo-check` or is a separate check; then promote.
+- Task: `TaskFlowDocs/2026-09-23-orphan-task-dirs/`
+- Next action: Complete PRD / Spec / Plan and request approval.
 - Notes: 发现于 2026-09-16 —— 提交 PR #28 时为让提交只含任务 A 而摘掉 B/C/D 的 Todo 条目，随后一次 `git checkout -- TaskFlowDocs/todo.md` 把工作区文件整体回退，三条条目一度丢失（同日已按原样补回），而三个任务目录始终在 `TaskFlowDocs/` 下，形成「目录存在、无 Todo 指向」的孤儿态（仅工作区，未进入任何提交）。同一形态在历史里也有一例：`TaskFlowDocs/achieved/2026-09-10-repository-document-placement/`，全部历史中从未有过对应的 Todo 条目。目前该缺口无自动检查兜住。注意：只查「任务目录 → Todo」这一个方向；反方向（Todo 条目指向不存在的目录）本轮已实测为空。2026-09-16 追问：本条与 `TF-20260916-ab381b` 是同一根因的两个方向——孤儿目录是「文档先于隔离产生」的结果，`ab381b` 修根因并在 `hooks/repository-check` 里报告错位产物；本条仍是更广的历史审计（含已提交、已归档的目录），是否仍要独立成检查待定。
 
 ## Publish TaskFlow v1.0.6 with the CodeBuddy host, the Todo merge-drop audit, and the release version check
diff --git a/hooks/repository-check b/hooks/repository-check
index 9e143dc..0a8dab5 100755
--- a/hooks/repository-check
+++ b/hooks/repository-check
@@ -90,6 +90,35 @@ else
   echo "  branch or moving the work to its own working tree is what removes the report."
 fi
 
+# A task directory (active or achieved) that no Todo `- Task:` line names is a
+# lost Todo record beside live documents — actionable integrity, unlike the
+# informational uncommitted-artifact lines above. Report only: never delete.
+# Sets `needs`.
+orphans=""
+if [ -d TaskFlowDocs ]; then
+  refs=""
+  if [ -f TaskFlowDocs/todo.md ]; then
+    refs="$(sed -n 's/^- Task: `\([^`]*\)`.*/\1/p' TaskFlowDocs/todo.md | sed 's|/*$||')"
+  fi
+  for dir in TaskFlowDocs/*/ TaskFlowDocs/achieved/*/; do
+    [ -d "$dir" ] || continue
+    [ -f "$dir/prd.md" ] || [ -f "$dir/plan.md" ] || continue
+    name="${dir%/}"
+    if [ -z "$refs" ] || ! printf '%s\n' "$refs" | grep -qxF "$name"; then
+      orphans="$orphans- $name
+"
+      needs=1
+    fi
+  done
+fi
+if [ -z "$orphans" ]; then
+  echo "Orphan task directories: none"
+else
+  printf 'Orphan task directories:\n%s' "$orphans"
+  echo "  A directory with prd.md or plan.md that no Todo - Task: line names."
+  echo "  Restore or recreate the Todo entry, or archive/remove the directory deliberately."
+fi
+
 if [ "$needs" -eq 1 ]; then
   echo "STATUS: needs-user-input"
   exit 2
diff --git a/hooks/smoke-test b/hooks/smoke-test
index 9477579..b3a992d 100755
--- a/hooks/smoke-test
+++ b/hooks/smoke-test
@@ -1117,6 +1117,10 @@ echo "$art_out" | grep -q 'Task artifacts: none uncommitted' \
 
 mkdir -p "$art_root/TaskFlowDocs/2026-09-01-misplaced"
 printf '# PRD\n' > "$art_root/TaskFlowDocs/2026-09-01-misplaced/prd.md"
+# Referenced by Todo so this section stays about uncommitted state only;
+# orphan detection is exercised in its own section below.
+printf '# Todo\n## Fixture\n- ID: T-20260901-01\n- Task: `TaskFlowDocs/2026-09-01-misplaced/`\n' \
+  > "$art_root/TaskFlowDocs/todo.md"
 set +e
 art_out=$(bash "$HERE/repository-check" "$art_root" 2>&1)
 art_status=$?
@@ -1126,6 +1130,8 @@ set -e
 echo "$art_out" | grep -q 'STATUS: pass' || { echo "FAIL the task-artifact report changed the status"; cat "$art_out"; exit 1; }
 echo "$art_out" | grep -q -- '- TaskFlowDocs/2026-09-01-misplaced/ (untracked)' \
   || { echo "FAIL misplaced task artifact not named"; cat "$art_out"; exit 1; }
+echo "$art_out" | grep -q 'Orphan task directories: none' \
+  || { echo "FAIL referenced artifact reported as orphan"; cat "$art_out"; exit 1; }
 # A directory with no commit cannot be attributed to a branch, and the output must
 # say what it can and cannot claim instead of letting the reader assume.
 echo "$art_out" | grep -q 'follows you to whatever branch you check out' \
@@ -1153,6 +1159,65 @@ echo "$art_out" | grep -q '2026-09-01-misplaced' \
   && { echo "FAIL committed task artifact named in the report"; cat "$art_out"; exit 1; }
 echo ok
 
+echo "== repository-check reports orphan task directories =="
+orphan_root="$tmp/repository-check-orphans"
+mkdir -p "$orphan_root/TaskFlowDocs/repository-docs"
+git -C "$orphan_root" init -q
+git -C "$orphan_root" config user.email smoke@example.invalid
+git -C "$orphan_root" config user.name smoke
+printf '# Catalog\n' > "$orphan_root/TaskFlowDocs/repository-docs/index.md"
+printf 'CONTRIBUTING\n' > "$orphan_root/CONTRIBUTING.md"
+printf 'CODE_STYLE\n' > "$orphan_root/CODE_STYLE.md"
+printf '# Todo\n' > "$orphan_root/TaskFlowDocs/todo.md"
+git -C "$orphan_root" add -A && git -C "$orphan_root" commit -qm base
+git -C "$orphan_root" remote add origin "$orphan_root"
+git -C "$orphan_root" update-ref refs/remotes/origin/main HEAD
+git -C "$orphan_root" branch -q -u origin/main
+# Unreferenced active dir → listed, exit 2
+mkdir -p "$orphan_root/TaskFlowDocs/2026-01-01-lost"
+printf '# PRD\n> Task version: v1\n' > "$orphan_root/TaskFlowDocs/2026-01-01-lost/prd.md"
+printf '# Plan\n> Task version: v1\n' > "$orphan_root/TaskFlowDocs/2026-01-01-lost/plan.md"
+set +e
+orphan_out=$(bash "$HERE/repository-check" "$orphan_root" 2>&1)
+orphan_status=$?
+set -e
+[ "$orphan_status" -eq 2 ] || { echo "FAIL orphan did not set needs: $orphan_status"; printf '%s\n' "$orphan_out"; exit 1; }
+echo "$orphan_out" | grep -q 'STATUS: needs-user-input' || { echo "FAIL orphan status"; printf '%s\n' "$orphan_out"; exit 1; }
+# Orphan lines have no trailing slash; the uncommitted-artifact line does.
+echo "$orphan_out" | grep -q -- '^- TaskFlowDocs/2026-01-01-lost$' \
+  || { echo "FAIL active orphan not named"; printf '%s\n' "$orphan_out"; exit 1; }
+# Achieved orphan is listed too
+mkdir -p "$orphan_root/TaskFlowDocs/achieved/2026-01-01-gone"
+printf '# PRD\n> Task version: v1\n' > "$orphan_root/TaskFlowDocs/achieved/2026-01-01-gone/prd.md"
+set +e
+orphan_out=$(bash "$HERE/repository-check" "$orphan_root" 2>&1)
+set -e
+echo "$orphan_out" | grep -q -- '^- TaskFlowDocs/achieved/2026-01-01-gone$' \
+  || { echo "FAIL achieved orphan not named"; printf '%s\n' "$orphan_out"; exit 1; }
+# Referencing the active path clears it from the orphan list
+printf '# Todo\n## Fixture\n- ID: T-20260101-01\n- Task: `TaskFlowDocs/2026-01-01-lost/`\n' \
+  > "$orphan_root/TaskFlowDocs/todo.md"
+set +e
+orphan_out=$(bash "$HERE/repository-check" "$orphan_root" 2>&1)
+orphan_status=$?
+set -e
+echo "$orphan_out" | grep -q -- '^- TaskFlowDocs/2026-01-01-lost$' \
+  && { echo "FAIL referenced active dir still orphan"; printf '%s\n' "$orphan_out"; exit 1; }
+echo "$orphan_out" | grep -q -- '^- TaskFlowDocs/achieved/2026-01-01-gone$' \
+  || { echo "FAIL achieved orphan dropped early"; printf '%s\n' "$orphan_out"; exit 1; }
+[ "$orphan_status" -eq 2 ] || { echo "FAIL remaining achieved orphan should keep needs"; printf '%s\n' "$orphan_out"; exit 1; }
+# Clear achieved too → pass
+printf '# Todo\n## Fixture\n- ID: T-20260101-01\n- Task: `TaskFlowDocs/2026-01-01-lost/`\n- Task: `TaskFlowDocs/achieved/2026-01-01-gone/`\n' \
+  > "$orphan_root/TaskFlowDocs/todo.md"
+set +e
+orphan_out=$(bash "$HERE/repository-check" "$orphan_root" 2>&1)
+orphan_status=$?
+set -e
+[ "$orphan_status" -eq 0 ] || { echo "FAIL clean-orphan fixture not pass: $orphan_status"; printf '%s\n' "$orphan_out"; exit 1; }
+echo "$orphan_out" | grep -q 'Orphan task directories: none' \
+  || { echo "FAIL empty orphan set should report none"; printf '%s\n' "$orphan_out"; exit 1; }
+echo ok
+
 echo "== todo merge driver keeps both branches' entries =="
 # A real repository, so the assertion exercises `git merge` rather than a
 # simulation of it. The driver is installed the way a user gets it, by the hook.