fix(as-S6): the operator's rulings — sentence tagline, no side stripe, matte dot, stripe on ::before

Operator, 2026-09-28: "go with your recommendations".
- Tagline: 'held for review · wipes in {ttl}h unless kept', mono, muted,
  12px, sentence case ("ephemeral" goes, as agreed with booth-dev).
- 'Needs you' rows lose the 3px side stripe; the '? N OPEN' stamp says it.
  The flagged filmstrip frame keeps its bottom stripe.
- The brand dot is matte (glow = live power; a live bench keeps its glow).
- Wipe now and the armed bulk delete carry the hazard stripe on a 3px
  ::before, so the button's own background is honestly what sits under its
  text; the stripe renders as before.

Contract: as_antislop S6. Falsifiers: antislop.toml 49/49 proved (S1-S4, S6);
all 12 tables 329/329 proved on this tree.

tests/mutations/antislop.toml

@@ -329,3 +329,49 @@ file = "booth/templates/base.html"
 test = "tests/test_antislop_browser.py::test_doc_headings_step_by_size"
 old = """.markdown-body h3{font-size:1.2em;font-weight:600}"""
 new = """.markdown-body h3{font-size:1.08em;font-weight:600}"""
+
+# ---- S6: the operator's rulings
+
+[[mutation]]
+label = "S6 the old tagline copy"
+file = "booth/templates/base.html"
+test = "tests/test_antislop.py::test_the_tagline_is_a_sentence"
+old = """  <span class="tagline">held for review · wipes in {{ ttl_hours }}h unless kept</span>"""
+new = """  <span class="tagline">ephemeral media · auto-wipes {{ ttl_hours }}h · kept boards don't</span>"""
+
+[[mutation]]
+label = "S6 the tagline in tracked capitals again"
+file = "booth/templates/base.html"
+test = "tests/test_antislop.py::test_the_tagline_is_a_sentence"
+old = """  .tagline{font-family:var(--font-mono);font-size:var(--size-caption);font-weight:500;color:var(--text-muted)}"""
+new = """  .tagline{font-family:var(--font-mono);font-size:var(--size-caption);font-weight:500;text-transform:uppercase;color:var(--text-muted)}"""
+
+[[mutation]]
+label = "S6 the needs-you side stripe back"
+file = "booth/templates/base.html"
+test = "tests/test_antislop.py::test_needs_you_rows_carry_no_side_stripe"
+old = """  .desk-row.is-needs{box-shadow:var(--shadow-sm)}"""
+new = """  .desk-row.is-needs{box-shadow:inset 3px 0 0 var(--warning),var(--shadow-sm)}"""
+
+[[mutation]]
+label = "S6 the brand dot glows again"
+file = "booth/templates/base.html"
+test = "tests/test_antislop.py::test_the_brand_dot_is_matte"
+old = """  .brand .dot{width:8px;height:8px;border-radius:var(--radius-pill);background:var(--accent)}"""
+new = """  .brand .dot{width:8px;height:8px;border-radius:var(--radius-pill);background:var(--accent);box-shadow:var(--glow-armed)}"""
+
+[[mutation]]
+label = "S6 Wipe now paints the stripe on its own background again"
+file = "booth/templates/base.html"
+test = "tests/test_antislop_browser.py::test_the_hazard_stripe_is_a_pseudo_element"
+old = """    position:relative;overflow:hidden;background:transparent;
+    border:1px solid var(--danger);color:var(--danger-text);-webkit-backdrop-filter:none;backdrop-filter:none}"""
+new = """    position:relative;overflow:hidden;background:var(--hazard-stripe) top / 100% 3px no-repeat,transparent;
+    border:1px solid var(--danger);color:var(--danger-text);-webkit-backdrop-filter:none;backdrop-filter:none}"""
+
+[[mutation]]
+label = "S6 the stripe layer lost (no ::before)"
+file = "booth/templates/base.html"
+test = "tests/test_antislop_browser.py::test_the_hazard_stripe_is_a_pseudo_element"
+old = """  .wipe-lg button::before,.board-del-sel:not(:disabled)::before{content:"";position:absolute;"""
+new = """  .wipe-lg button::after,.board-del-sel:not(:disabled)::after{content:"";position:absolute;"""

tests/test_antislop.py

@@ -283,3 +283,26 @@ def test_the_ask_tag_meets_the_label_floor():
     i = js.index('".bk-ask-tag{')
     m = re.search(r"font:\d+ (\d+(?:\.\d+)?)px", js[i:i + 400])
     assert m and float(m.group(1)) >= 11, m and m.group(0)
+
+
+
+# ---- S6: the operator's rulings ------------------------------------------------------
+
+def test_the_tagline_is_a_sentence(client):
+    c, data = client
+    html = c.get("/").text
+    m = re.search(r'<span class="tagline">(.*?)</span>', html, flags=re.S)
+    assert m and _text(m.group(1)) == "held for review · wipes in 24h unless kept", m and m.group(1)
+    # the BASE rule (the phone rule `body.page-stage .topbar .tagline` is S3's)
+    decl = re.search(r"\n\s*\.tagline\{([^}]*)\}", (_T / "base.html").read_text()).group(1)
+    assert "uppercase" not in decl and _px(decl) >= 12, decl
+
+
+def test_needs_you_rows_carry_no_side_stripe():
+    decl = _rule((_T / "base.html").read_text(), ".desk-row.is-needs")
+    assert "inset" not in decl, decl
+
+
+def test_the_brand_dot_is_matte():
+    decl = _rule((_T / "base.html").read_text(), ".brand .dot")
+    assert "box-shadow" not in decl, decl

tests/test_antislop_browser.py

@@ -154,3 +154,21 @@ def test_doc_headings_step_by_size(browser, live):
     for lo, hi, name in ((body, h3, "h3:body"), (h3, h2, "h2:h3"), (h2, h1, "h1:h2")):
         assert hi / lo >= 1.18, f"{name} is {hi / lo:.2f} ({hi}px over {lo}px)"
     page.close()
+
+
+
+# ---- S6: the hazard stripe on a pseudo-element -----------------------------------
+
+def test_the_hazard_stripe_is_a_pseudo_element(browser, live):
+    base, root = live
+    (root / "w").mkdir()
+    (root / "w" / "a.txt").write_text("x")
+    page = browser.new_page(viewport={"width": 1280, "height": 800})
+    page.goto(f"{base}/b/w/", wait_until="load")
+    got = page.locator(".wipe-lg button").evaluate("""b => {
+        const own = getComputedStyle(b), pre = getComputedStyle(b, '::before');
+        return {own: own.backgroundImage, pre: pre.backgroundImage, h: pre.height, content: pre.content};
+    }""")
+    assert got["own"] == "none", f"the button paints its own stripe: {got['own'][:80]}"
+    assert "repeating-linear-gradient" in got["pre"] and got["h"] == "3px" and got["content"] != "none", got
+    page.close()