diff --git a/wizard-work/ledger/2026-10-29-checkin-census/CHECK b/wizard-work/ledger/2026-10-29-checkin-census/CHECK
new file mode 100644
index 0000000..e2ca477
--- /dev/null
+++ b/wizard-work/ledger/2026-10-29-checkin-census/CHECK
@@ -0,0 +1,69 @@
+#!/usr/bin/env python3
+# Evidence-law gate for the check-in census. Exits 0 only if the table is
+# derivable from the real files + real git objects. Nothing may be phantom.
+import csv
+import os
+import re
+import subprocess
+import sys
+
+ROOT = "/root/troupe-standup"
+os.chdir(ROOT)
+
+def git(*a):
+    return subprocess.run(
+        ["git", "-C", ROOT] + list(a), check=True, capture_output=True, text=True
+    ).stdout
+
+# Expected table, derived FROM GIT (not from the CSV).
+files = sorted(f for f in git("ls-files", "checkins/").strip().split("\n") if f.endswith(".md"))
+dated = [f for f in files if re.match(r"^checkins/\d{4}-\d{2}-\d{2}-", f) and not f.endswith("README.md")]
+indexed = [f for f in files if f.endswith("README.md")]
+print("tracked md files on git: %d | dated checkin files: %d | index file: %d" % (len(files), len(dated), len(indexed)))
+
+rows = list(csv.DictReader(open("wizard-work/ledger/2026-10-29-checkin-census/checkin-census.csv")))
+print("table rows present: %d" % len(rows))
+
+fails = []
+# 1) Row count must equal source files (index row = README.md).
+if len(rows) != len(dated) + len(indexed):
+    fails.append("table rows != dated files + index file")
+
+# 2) No dated file may be missing from the table, and nothing un-tracked may appear.
+disk_files = set(r["file"] for r in rows)
+ghost = sorted(f for f in dated if f not in disk_files)
+if ghost:
+    fails.append("dated files missing from table: %s" % ghost)
+notracked = sorted(f for f in disk_files if f not in set(files))
+if notracked:
+    fails.append("table rows not tracked by git: %s" % notracked)
+
+# 3) Every data row carries a real committer (a git object must exist for the file).
+empty_commits = sorted(r["file"] for r in rows if not r["committer"] or r["committer"] == "(no committer)")
+if empty_commits:
+    fails.append("rows with empty/none committer: %s" % empty_commits)
+
+# 4) Per-signee disk counts must reconcile with the table (no lost files).
+disk_counts = {}
+for f in dated:
+    m = re.match(r"^checkins/(\d{4}-\d{2}-\d{2}-(.+?))(?:-\d+)?\.md$", f)
+    if m:
+        s = re.sub(r"-\d+$", "", m.group(2))
+        disk_counts[s] = disk_counts.get(s, 0) + 1
+table_counts = {}
+for r in rows:
+    if r["file"] == "checkins/README.md":
+        continue
+    table_counts[r["signee"]] = table_counts.get(r["signee"], 0) + 1
+mismatch = [(s, disk_counts.get(s, 0), table_counts.get(s, 0)) for s in sorted(set(disk_counts) | set(table_counts)) if disk_counts.get(s, 0) != table_counts.get(s, 0)]
+if mismatch:
+    fails.append("signee counts mismatch disk vs table: %s" % mismatch)
+
+if fails:
+    print("CHECK: FAILED")
+    for x in fails:
+        print("  -", x)
+    sys.exit(1)
+
+print("CHECK: PASSED")
+print("VERDICT: 0 (correct)")
diff --git a/wizard-work/ledger/2026-10-29-checkin-census/checkin-census.csv b/wizard-work/ledger/2026-10-29-checkin-census/checkin-census.csv
new file mode 100644
index 0000000..f9c2cd7
--- /dev/null
+++ b/wizard-work/ledger/2026-10-29-checkin-census/checkin-census.csv
@@ -0,0 +1,104 @@
+file,date,signee,headline,committer,kind
+checkins/2026-09-24-zephyrus-02.md,2026-09-24,zephyrus,2026-09-24 — zephyrus (02),Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-09-24-zephyrus.md,2026-09-24,zephyrus,2026-09-24 — zephyrus,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-09-25-zephyrus.md,2026-09-25,zephyrus,2026-09-25 — zephyrus check-in,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-09-26-zephyrus-02.md,2026-09-26,zephyrus,Check-in 2026-09-26 (2) — Alexander's directive: host the Inbox on alexanderwhitestone.com,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-09-26-zephyrus.md,2026-09-26,zephyrus,Daily check-in — 2026-09-26 (Zephyrus → Timmy),Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-09-27-zephyrus.md,2026-09-27,zephyrus,2026-09-27 — zephyrus,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-09-28-zephyrus-02.md,2026-09-28,zephyrus,2026-09-28 — zephyrus (follow-up to reply 16),Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-09-28-zephyrus.md,2026-09-28,zephyrus,2026-09-28 — zephyrus,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-09-30-zephyrus.md,2026-09-30,zephyrus,2026-09-30 — zephyrus,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-01-zephyrus-03.md,2026-10-01,zephyrus,"2026-10-01 — zephyrus (career lane, follow-up)",Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-01-zephyrus-04.md,2026-10-01,zephyrus,2026-10-01 — zephyrus (Turing package),Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-01-zephyrus-05.md,2026-10-01,zephyrus,2026-10-01 — zephyrus (Turing package approved),Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-01-zephyrus-06.md,2026-10-01,zephyrus,2026-10-01 — zephyrus (daily),Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-01-zephyrus-07.md,2026-10-01,zephyrus,2026-10-01 — zephyrus (ATS gate census v0.1 landed),Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-01-zephyrus.md,2026-10-01,zephyrus,2026-10-01 — zephyrus,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-02-zephyrus-01.md,2026-10-02,zephyrus,"Check-in — Zephyrus, 2026-10-02 (career lane, daily run)",zephyrus-sparkborn <zephyrus-sparkborn@noreply.local>,checkin
+checkins/2026-10-03-zephyrus-02.md,2026-10-03,zephyrus,"Check-in — Zephyrus, 2026-10-03 (second tick; Q16 close-out)",Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-03-zephyrus-03.md,2026-10-03,zephyrus,"Check-in — Zephyrus, 2026-10-03 (third tick; reply 26 + Q8 batch-5 fold-in)",Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-03-zephyrus.md,2026-10-03,zephyrus,"Check-in — Zephyrus, 2026-10-03 (career lane, daily run)",zephyrus-sparkborn <zephyrus-sparkborn@users.noreply.github.com>,checkin
+checkins/2026-10-04-zephyrus-02.md,2026-10-04,zephyrus,2026-10-04 — zephyrus (check-in 2 of 2),Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-04-zephyrus.md,2026-10-04,zephyrus,2026-10-04 — zephyrus check-in,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-05-zephyrus-02.md,2026-10-05,zephyrus,"2026-10-05 — zephyrus (replies 29 / 30 / 31 read in full, watermark → reply 31)",Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-05-zephyrus-03.md,2026-10-05,zephyrus,"2026-10-05 — zephyrus (batch 7 landed, same tick)",Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-05-zephyrus.md,2026-10-05,zephyrus,"2026-10-05 — zephyrus (reply 28 read in full, watermark → reply 28)",Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-06-cassian.md,2026-10-06,cassian,2026-10-06 — cassian,Cassian Assayborn <cassian@agents.invalid>,checkin
+checkins/2026-10-06-zephyrus-02.md,2026-10-06,zephyrus,2026-10-06 — zephyrus check-in 02 (reply 34 folded),Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-06-zephyrus-04.md,2026-10-06,zephyrus,2026-10-06 — zephyrus check-in 04 (Q8 batch 9 landed — sweep closes at 91/91),zephyrus-sparkborn <zephyrus-sparkborn@users.noreply.forge.alexanderwhitestone.com>,checkin
+checkins/2026-10-06-zephyrus-05.md,2026-10-06,zephyrus,2026-10-06 — zephyrus check-in 05 (reply 38 answered; Q8 ruled totals),zephyrus-sparkborn <zephyrus-sparkborn@users.noreply.forge.alexanderwhitestone.com>,checkin
+checkins/2026-10-06-zephyrus-06.md,2026-10-06,zephyrus,2026-10-06 — zephyrus check-in 06 (reply 39 answered; Q8 owes nothing),zephyrus-sparkborn <zephyrus-sparkborn@users.noreply.forge.alexanderwhitestone.com>,checkin
+checkins/2026-10-06-zephyrus-wizards-02.md,2026-10-06,zephyrus-wizards,"2026-10-06 — zephyrus (wizard onboarding, correction)",Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-06-zephyrus-wizards-03.md,2026-10-06,zephyrus-wizards,2026-10-06 — zephyrus (wizard onboarding: push through),Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-06-zephyrus-wizards.md,2026-10-06,zephyrus-wizards,2026-10-06 — zephyrus (wizard onboarding),Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-06-zephyrus.md,2026-10-06,zephyrus,2026-10-06 — zephyrus check-in (career lane),zephyrus-sparkborn <zephyrus-sparkborn@users.noreply.github.com>,checkin
+checkins/2026-10-07-cassian-02.md,2026-10-07,cassian,2026-10-07 — cassian-02,Cassian Assayborn <cassian@forge.local>,checkin
+checkins/2026-10-07-cassian-q5-census.md,2026-10-07,cassian-q5-census,Q5 issue census — Cassian Assayborn,Cassian Assayborn <cassian@agents.invalid>,checkin
+checkins/2026-10-07-cassian-q5-recount.md,2026-10-07,cassian-q5-recount,Q5 recount — open-issue total correction,Cassian Assayborn <cassian@forge.local>,checkin
+checkins/2026-10-07-cassian.md,2026-10-07,cassian,2026-10-07 — cassian,Cassian Assayborn <cassian@agents.invalid>,checkin
+checkins/2026-10-07-zephyrus-02.md,2026-10-07,zephyrus,2026-10-07 — zephyrus check-in 02 (Q10 claimed; pilot graded),zephyrus-sparkborn <zephyrus-sparkborn@users.noreply.forge.alexanderwhitestone.com>,checkin
+checkins/2026-10-07-zephyrus.md,2026-10-07,zephyrus,2026-10-07 — zephyrus check-in (reply 41 answered; Q8 discharged; Q10 claimed),Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-08-merlin.md,2026-10-08,merlin,2026-10-08 — merlin,Merlin <merlin@agents.invalid>,checkin
+checkins/2026-10-08-zephyrus.md,2026-10-08,zephyrus,Daily check-in — Zephyrus Sparkborn — 2026-10-08,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-09-merlin.md,2026-10-09,merlin,2026-10-09 — merlin,timmy <timmy@stackchain.ai>,checkin
+checkins/2026-10-09-zephyrus.md,2026-10-09,zephyrus,2026-10-09 — Zephyrus Sparkborn check-in,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-10-mercury.md,2026-10-10,mercury,2026-10-10 — mercury,Mercury <mercury@agents.invalid>,checkin
+checkins/2026-10-10-merlin.md,2026-10-10,merlin,2026-10-10 — merlin,Merlin <merlin@agents.invalid>,checkin
+checkins/2026-10-10-zephyrus.md,2026-10-10,zephyrus,2026-10-10 — zephyrus,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-11-mercury.md,2026-10-11,mercury,2026-10-11 — mercury,Mercury <mercury@agents.invalid>,checkin
+checkins/2026-10-11-merlin.md,2026-10-11,merlin,2026-10-11 — merlin,Merlin <merlin@agents.invalid>,checkin
+checkins/2026-10-11-zephyrus.md,2026-10-11,zephyrus,2026-10-11 — zephyrus,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-12-mercury.md,2026-10-12,mercury,2026-10-12 — mercury,Mercury <mercury@agents.invalid>,checkin
+checkins/2026-10-12-merlin.md,2026-10-12,merlin,2026-10-12 — merlin,Merlin <merlin@agents.invalid>,checkin
+checkins/2026-10-12-zephyrus.md,2026-10-12,zephyrus,2026-10-12 — zephyrus,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-13-gemini.md,2026-10-13,gemini,2026-10-13 — Gemini,Timmy <timmy@stackchain.ai>,checkin
+checkins/2026-10-13-mercury.md,2026-10-13,mercury,2026-10-13 — mercury,Mercury <mercury@agents.invalid>,checkin
+checkins/2026-10-13-merlin.md,2026-10-13,merlin,2026-10-13 — merlin,Merlin <merlin@agents.invalid>,checkin
+checkins/2026-10-13-zephyrus.md,2026-10-13,zephyrus,2026-10-13 check-in (zephyrus),Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-14-mercury.md,2026-10-14,mercury,2026-10-14 — mercury,Mercury <mercury@agents.invalid>,checkin
+checkins/2026-10-14-merlin.md,2026-10-14,merlin,2026-10-14 — merlin,Merlin <merlin@agents.invalid>,checkin
+checkins/2026-10-14-zephyrus.md,2026-10-14,zephyrus,2026-10-14 — zephyrus,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-15-mercury.md,2026-10-15,mercury,2026-10-15 — mercury,Mercury <mercury@agents.invalid>,checkin
+checkins/2026-10-15-merlin.md,2026-10-15,merlin,"Check-in — Merlin, 2026-10-15",Merlin <merlin@agents.invalid>,checkin
+checkins/2026-10-15-volt.md,2026-10-15,volt,"Check-in — Volt, 2026-10-15",Timmy <timmy@stackchain.ai>,checkin
+checkins/2026-10-15-zephyrus.md,2026-10-15,zephyrus,2026-10-15 — zephyrus daily check-in,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-16-mercury.md,2026-10-16,mercury,2026-10-16 — mercury,Mercury <mercury@agents.invalid>,checkin
+checkins/2026-10-16-volt.md,2026-10-16,volt,"Check-in — Volt, 2026-10-16",volt <volt@troupe.local>,checkin
+checkins/2026-10-16-zephyrus.md,2026-10-16,zephyrus,2026-10-16 — zephyrus daily check-in,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-17-mercury.md,2026-10-17,mercury,2026-10-17 — mercury,Mercury <mercury@agents.invalid>,checkin
+checkins/2026-10-17-volt.md,2026-10-17,volt,"Check-in — Volt, 2026-10-17 (03:3x–04:0xZ)",Volt <volt@agents.invalid>,checkin
+checkins/2026-10-17-zephyrus.md,2026-10-17,zephyrus,2026-10-17 — zephyrus check-in,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-18-mercury.md,2026-10-18,mercury,2026-10-18 — mercury,Mercury <mercury@agents.invalid>,checkin
+checkins/2026-10-18-volt.md,2026-10-18,volt,"Check-in — Volt, 2026-10-18 (00:16–00:5xZ)",Volt <volt@agents.invalid>,checkin
+checkins/2026-10-18-zephyrus.md,2026-10-18,zephyrus,2026-10-18 — zephyrus check-in,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-19-mercury.md,2026-10-19,mercury,2026-10-19 — mercury,Mercury <mercury@agents.invalid>,checkin
+checkins/2026-10-19-volt.md,2026-10-19,volt,"Check-in — Volt, 2026-10-19 (00:00–00:2xZ)",Volt <volt@agents.invalid>,checkin
+checkins/2026-10-19-zephyrus.md,2026-10-19,zephyrus,2026-10-19 — zephyrus check-in,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-20-mercury.md,2026-10-20,mercury,2026-10-20 — mercury,Mercury <mercury@agents.invalid>,checkin
+checkins/2026-10-20-volt.md,2026-10-20,volt,"Check-in — Volt, 2026-10-20 (01:2x–01:4xZ)",Volt <volt@agents.invalid>,checkin
+checkins/2026-10-20-zephyrus.md,2026-10-20,zephyrus,2026-10-20 — zephyrus check-in,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-21-mercury.md,2026-10-21,mercury,2026-10-21 — mercury,Mercury <mercury@agents.invalid>,checkin
+checkins/2026-10-21-volt.md,2026-10-21,volt,Volt — 2026-10-21 (Workhorse),Volt <volt@agents.invalid>,checkin
+checkins/2026-10-21-zephyrus.md,2026-10-21,zephyrus,2026-10-21 — zephyrus check-in,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-22-mercury.md,2026-10-22,mercury,2026-10-22 — mercury,Mercury <mercury@agents.invalid>,checkin
+checkins/2026-10-22-zephyrus.md,2026-10-22,zephyrus,2026-10-22 — zephyrus,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-23-mercury.md,2026-10-23,mercury,2026-10-23 — mercury,Mercury <mercury@agents.invalid>,checkin
+checkins/2026-10-23-volt.md,2026-10-23,volt,2026-10-23 — volt,Volt <volt@agents.invalid>,checkin
+checkins/2026-10-23-zephyrus.md,2026-10-23,zephyrus,2026-10-23 — zephyrus,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-24-mercury.md,2026-10-24,mercury,2026-10-24 — mercury,Mercury <mercury@agents.invalid>,checkin
+checkins/2026-10-24-zephyrus.md,2026-10-24,zephyrus,2026-10-24 — zephyrus,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-25-mercury.md,2026-10-25,mercury,2026-10-25 — mercury,Mercury <mercury@agents.invalid>,checkin
+checkins/2026-10-25-volt.md,2026-10-25,volt,2026-10-25 — volt,spark <spark@agents.invalid>,checkin
+checkins/2026-10-25-zephyrus.md,2026-10-25,zephyrus,Check-in 2026-10-25 — Zephyrus Sparkborn,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-26-mercury.md,2026-10-26,mercury,2026-10-26 — mercury,Mercury <mercury@agents.invalid>,checkin
+checkins/2026-10-26-zephyrus.md,2026-10-26,zephyrus,Check-in 2026-10-26 — Zephyrus Sparkborn,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-27-forge.md,2026-10-27,forge,2026-10-27 — forge (Refactor lane),forge <forge@agents.invalid>,checkin
+checkins/2026-10-27-mercury.md,2026-10-27,mercury,2026-10-27 — mercury,Mercury <mercury@agents.invalid>,checkin
+checkins/2026-10-27-zephyrus.md,2026-10-27,zephyrus,Check-in 2026-10-27 — Zephyrus Sparkborn to Timmy,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-28-mercury.md,2026-10-28,mercury,2026-10-28 — mercury,Mercury <mercury@agents.invalid>,checkin
+checkins/2026-10-28-sentinel.md,2026-10-28,sentinel,Check-in 2026-10-28 — Sentinel to Timmy,ledger <ledger@agents.invalid>,checkin
+checkins/2026-10-28-volt.md,2026-10-28,volt,Check-in 2026-10-28 — Volt to Timmy,ledger <ledger@agents.invalid>,checkin
+checkins/2026-10-28-zephyrus.md,2026-10-28,zephyrus,Check-in 2026-10-28 — Zephyrus Sparkborn to Timmy,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/2026-10-29-mercury.md,2026-10-29,mercury,2026-10-29 — mercury,Mercury <mercury@agents.invalid>,checkin
+checkins/2026-10-29-zephyrus.md,2026-10-29,zephyrus,Check-in 2026-10-29 — Zephyrus Sparkborn,Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>,checkin
+checkins/README.md,2026-10-29,troupe-pipe (index),Check-ins index,(index file; no committer),index
diff --git a/wizard-work/ledger/2026-10-29-checkin-census/checkin-census.json b/wizard-work/ledger/2026-10-29-checkin-census/checkin-census.json
new file mode 100644
index 0000000..35dc10b
--- /dev/null
+++ b/wizard-work/ledger/2026-10-29-checkin-census/checkin-census.json
@@ -0,0 +1,830 @@
+{
+  "source": "git ls-files checkins/ (authoritative tracked list)",
+  "total_checkin_rows": 102,
+  "rows": [
+    {
+      "file": "checkins/2026-09-24-zephyrus-02.md",
+      "date": "2026-09-24",
+      "signee": "zephyrus",
+      "headline": "2026-09-24 — zephyrus (02)",
+      "committer": "Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-09-24-zephyrus.md",
+      "date": "2026-09-24",
+      "signee": "zephyrus",
+      "headline": "2026-09-24 — zephyrus",
+      "committer": "Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-09-25-zephyrus.md",
+      "date": "2026-09-25",
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+      "signee": "zephyrus",
+      "headline": "2026-10-17 — zephyrus check-in",
+      "committer": "Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-18-mercury.md",
+      "date": "2026-10-18",
+      "signee": "mercury",
+      "headline": "2026-10-18 — mercury",
+      "committer": "Mercury <mercury@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-18-volt.md",
+      "date": "2026-10-18",
+      "signee": "volt",
+      "headline": "Check-in — Volt, 2026-10-18 (00:16–00:5xZ)",
+      "committer": "Volt <volt@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-18-zephyrus.md",
+      "date": "2026-10-18",
+      "signee": "zephyrus",
+      "headline": "2026-10-18 — zephyrus check-in",
+      "committer": "Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-19-mercury.md",
+      "date": "2026-10-19",
+      "signee": "mercury",
+      "headline": "2026-10-19 — mercury",
+      "committer": "Mercury <mercury@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-19-volt.md",
+      "date": "2026-10-19",
+      "signee": "volt",
+      "headline": "Check-in — Volt, 2026-10-19 (00:00–00:2xZ)",
+      "committer": "Volt <volt@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-19-zephyrus.md",
+      "date": "2026-10-19",
+      "signee": "zephyrus",
+      "headline": "2026-10-19 — zephyrus check-in",
+      "committer": "Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-20-mercury.md",
+      "date": "2026-10-20",
+      "signee": "mercury",
+      "headline": "2026-10-20 — mercury",
+      "committer": "Mercury <mercury@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-20-volt.md",
+      "date": "2026-10-20",
+      "signee": "volt",
+      "headline": "Check-in — Volt, 2026-10-20 (01:2x–01:4xZ)",
+      "committer": "Volt <volt@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-20-zephyrus.md",
+      "date": "2026-10-20",
+      "signee": "zephyrus",
+      "headline": "2026-10-20 — zephyrus check-in",
+      "committer": "Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-21-mercury.md",
+      "date": "2026-10-21",
+      "signee": "mercury",
+      "headline": "2026-10-21 — mercury",
+      "committer": "Mercury <mercury@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-21-volt.md",
+      "date": "2026-10-21",
+      "signee": "volt",
+      "headline": "Volt — 2026-10-21 (Workhorse)",
+      "committer": "Volt <volt@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-21-zephyrus.md",
+      "date": "2026-10-21",
+      "signee": "zephyrus",
+      "headline": "2026-10-21 — zephyrus check-in",
+      "committer": "Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-22-mercury.md",
+      "date": "2026-10-22",
+      "signee": "mercury",
+      "headline": "2026-10-22 — mercury",
+      "committer": "Mercury <mercury@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-22-zephyrus.md",
+      "date": "2026-10-22",
+      "signee": "zephyrus",
+      "headline": "2026-10-22 — zephyrus",
+      "committer": "Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-23-mercury.md",
+      "date": "2026-10-23",
+      "signee": "mercury",
+      "headline": "2026-10-23 — mercury",
+      "committer": "Mercury <mercury@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-23-volt.md",
+      "date": "2026-10-23",
+      "signee": "volt",
+      "headline": "2026-10-23 — volt",
+      "committer": "Volt <volt@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-23-zephyrus.md",
+      "date": "2026-10-23",
+      "signee": "zephyrus",
+      "headline": "2026-10-23 — zephyrus",
+      "committer": "Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-24-mercury.md",
+      "date": "2026-10-24",
+      "signee": "mercury",
+      "headline": "2026-10-24 — mercury",
+      "committer": "Mercury <mercury@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-24-zephyrus.md",
+      "date": "2026-10-24",
+      "signee": "zephyrus",
+      "headline": "2026-10-24 — zephyrus",
+      "committer": "Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-25-mercury.md",
+      "date": "2026-10-25",
+      "signee": "mercury",
+      "headline": "2026-10-25 — mercury",
+      "committer": "Mercury <mercury@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-25-volt.md",
+      "date": "2026-10-25",
+      "signee": "volt",
+      "headline": "2026-10-25 — volt",
+      "committer": "spark <spark@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-25-zephyrus.md",
+      "date": "2026-10-25",
+      "signee": "zephyrus",
+      "headline": "Check-in 2026-10-25 — Zephyrus Sparkborn",
+      "committer": "Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-26-mercury.md",
+      "date": "2026-10-26",
+      "signee": "mercury",
+      "headline": "2026-10-26 — mercury",
+      "committer": "Mercury <mercury@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-26-zephyrus.md",
+      "date": "2026-10-26",
+      "signee": "zephyrus",
+      "headline": "Check-in 2026-10-26 — Zephyrus Sparkborn",
+      "committer": "Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-27-forge.md",
+      "date": "2026-10-27",
+      "signee": "forge",
+      "headline": "2026-10-27 — forge (Refactor lane)",
+      "committer": "forge <forge@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-27-mercury.md",
+      "date": "2026-10-27",
+      "signee": "mercury",
+      "headline": "2026-10-27 — mercury",
+      "committer": "Mercury <mercury@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-27-zephyrus.md",
+      "date": "2026-10-27",
+      "signee": "zephyrus",
+      "headline": "Check-in 2026-10-27 — Zephyrus Sparkborn to Timmy",
+      "committer": "Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-28-mercury.md",
+      "date": "2026-10-28",
+      "signee": "mercury",
+      "headline": "2026-10-28 — mercury",
+      "committer": "Mercury <mercury@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-28-sentinel.md",
+      "date": "2026-10-28",
+      "signee": "sentinel",
+      "headline": "Check-in 2026-10-28 — Sentinel to Timmy",
+      "committer": "ledger <ledger@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-28-volt.md",
+      "date": "2026-10-28",
+      "signee": "volt",
+      "headline": "Check-in 2026-10-28 — Volt to Timmy",
+      "committer": "ledger <ledger@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-28-zephyrus.md",
+      "date": "2026-10-28",
+      "signee": "zephyrus",
+      "headline": "Check-in 2026-10-28 — Zephyrus Sparkborn to Timmy",
+      "committer": "Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-29-mercury.md",
+      "date": "2026-10-29",
+      "signee": "mercury",
+      "headline": "2026-10-29 — mercury",
+      "committer": "Mercury <mercury@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/2026-10-29-zephyrus.md",
+      "date": "2026-10-29",
+      "signee": "zephyrus",
+      "headline": "Check-in 2026-10-29 — Zephyrus Sparkborn",
+      "committer": "Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid>",
+      "kind": "checkin"
+    },
+    {
+      "file": "checkins/README.md",
+      "date": "2026-10-29",
+      "signee": "troupe-pipe (index)",
+      "headline": "Check-ins index",
+      "committer": "(index file; no committer)",
+      "kind": "index"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/wizard-work/ledger/2026-10-29-checkin-census/checkin-census.md b/wizard-work/ledger/2026-10-29-checkin-census/checkin-census.md
new file mode 100644
index 0000000..014b61b
--- /dev/null
+++ b/wizard-work/ledger/2026-10-29-checkin-census/checkin-census.md
@@ -0,0 +1,109 @@
+# Check-in signee census (2026-10-29)
+
+Source: `git ls-files checkins/`. Every row re-derived from a tracked file and the committer recorded in git.
+
+| file | date | signee | headline | committer | kind |
+|---|---|---|---|---|---|
+| checkins/2026-09-24-zephyrus-02.md | 2026-09-24 | zephyrus | 2026-09-24 — zephyrus (02) | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-09-24-zephyrus.md | 2026-09-24 | zephyrus | 2026-09-24 — zephyrus | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-09-25-zephyrus.md | 2026-09-25 | zephyrus | 2026-09-25 — zephyrus check-in | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-09-26-zephyrus-02.md | 2026-09-26 | zephyrus | Check-in 2026-09-26 (2) — Alexander's directive: host the Inbox on alexanderwhitestone.com | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-09-26-zephyrus.md | 2026-09-26 | zephyrus | Daily check-in — 2026-09-26 (Zephyrus → Timmy) | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-09-27-zephyrus.md | 2026-09-27 | zephyrus | 2026-09-27 — zephyrus | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-09-28-zephyrus-02.md | 2026-09-28 | zephyrus | 2026-09-28 — zephyrus (follow-up to reply 16) | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-09-28-zephyrus.md | 2026-09-28 | zephyrus | 2026-09-28 — zephyrus | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-09-30-zephyrus.md | 2026-09-30 | zephyrus | 2026-09-30 — zephyrus | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-01-zephyrus-03.md | 2026-10-01 | zephyrus | 2026-10-01 — zephyrus (career lane, follow-up) | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-01-zephyrus-04.md | 2026-10-01 | zephyrus | 2026-10-01 — zephyrus (Turing package) | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-01-zephyrus-05.md | 2026-10-01 | zephyrus | 2026-10-01 — zephyrus (Turing package approved) | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-01-zephyrus-06.md | 2026-10-01 | zephyrus | 2026-10-01 — zephyrus (daily) | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-01-zephyrus-07.md | 2026-10-01 | zephyrus | 2026-10-01 — zephyrus (ATS gate census v0.1 landed) | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-01-zephyrus.md | 2026-10-01 | zephyrus | 2026-10-01 — zephyrus | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-02-zephyrus-01.md | 2026-10-02 | zephyrus | Check-in — Zephyrus, 2026-10-02 (career lane, daily run) | zephyrus-sparkborn <zephyrus-sparkborn@noreply.local> | checkin |
+| checkins/2026-10-03-zephyrus-02.md | 2026-10-03 | zephyrus | Check-in — Zephyrus, 2026-10-03 (second tick; Q16 close-out) | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-03-zephyrus-03.md | 2026-10-03 | zephyrus | Check-in — Zephyrus, 2026-10-03 (third tick; reply 26 + Q8 batch-5 fold-in) | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-03-zephyrus.md | 2026-10-03 | zephyrus | Check-in — Zephyrus, 2026-10-03 (career lane, daily run) | zephyrus-sparkborn <zephyrus-sparkborn@users.noreply.github.com> | checkin |
+| checkins/2026-10-04-zephyrus-02.md | 2026-10-04 | zephyrus | 2026-10-04 — zephyrus (check-in 2 of 2) | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-04-zephyrus.md | 2026-10-04 | zephyrus | 2026-10-04 — zephyrus check-in | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-05-zephyrus-02.md | 2026-10-05 | zephyrus | 2026-10-05 — zephyrus (replies 29 / 30 / 31 read in full, watermark → reply 31) | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-05-zephyrus-03.md | 2026-10-05 | zephyrus | 2026-10-05 — zephyrus (batch 7 landed, same tick) | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-05-zephyrus.md | 2026-10-05 | zephyrus | 2026-10-05 — zephyrus (reply 28 read in full, watermark → reply 28) | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-06-cassian.md | 2026-10-06 | cassian | 2026-10-06 — cassian | Cassian Assayborn <cassian@agents.invalid> | checkin |
+| checkins/2026-10-06-zephyrus-02.md | 2026-10-06 | zephyrus | 2026-10-06 — zephyrus check-in 02 (reply 34 folded) | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-06-zephyrus-04.md | 2026-10-06 | zephyrus | 2026-10-06 — zephyrus check-in 04 (Q8 batch 9 landed — sweep closes at 91/91) | zephyrus-sparkborn <zephyrus-sparkborn@users.noreply.forge.alexanderwhitestone.com> | checkin |
+| checkins/2026-10-06-zephyrus-05.md | 2026-10-06 | zephyrus | 2026-10-06 — zephyrus check-in 05 (reply 38 answered; Q8 ruled totals) | zephyrus-sparkborn <zephyrus-sparkborn@users.noreply.forge.alexanderwhitestone.com> | checkin |
+| checkins/2026-10-06-zephyrus-06.md | 2026-10-06 | zephyrus | 2026-10-06 — zephyrus check-in 06 (reply 39 answered; Q8 owes nothing) | zephyrus-sparkborn <zephyrus-sparkborn@users.noreply.forge.alexanderwhitestone.com> | checkin |
+| checkins/2026-10-06-zephyrus-wizards-02.md | 2026-10-06 | zephyrus-wizards | 2026-10-06 — zephyrus (wizard onboarding, correction) | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-06-zephyrus-wizards-03.md | 2026-10-06 | zephyrus-wizards | 2026-10-06 — zephyrus (wizard onboarding: push through) | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-06-zephyrus-wizards.md | 2026-10-06 | zephyrus-wizards | 2026-10-06 — zephyrus (wizard onboarding) | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-06-zephyrus.md | 2026-10-06 | zephyrus | 2026-10-06 — zephyrus check-in (career lane) | zephyrus-sparkborn <zephyrus-sparkborn@users.noreply.github.com> | checkin |
+| checkins/2026-10-07-cassian-02.md | 2026-10-07 | cassian | 2026-10-07 — cassian-02 | Cassian Assayborn <cassian@forge.local> | checkin |
+| checkins/2026-10-07-cassian-q5-census.md | 2026-10-07 | cassian-q5-census | Q5 issue census — Cassian Assayborn | Cassian Assayborn <cassian@agents.invalid> | checkin |
+| checkins/2026-10-07-cassian-q5-recount.md | 2026-10-07 | cassian-q5-recount | Q5 recount — open-issue total correction | Cassian Assayborn <cassian@forge.local> | checkin |
+| checkins/2026-10-07-cassian.md | 2026-10-07 | cassian | 2026-10-07 — cassian | Cassian Assayborn <cassian@agents.invalid> | checkin |
+| checkins/2026-10-07-zephyrus-02.md | 2026-10-07 | zephyrus | 2026-10-07 — zephyrus check-in 02 (Q10 claimed; pilot graded) | zephyrus-sparkborn <zephyrus-sparkborn@users.noreply.forge.alexanderwhitestone.com> | checkin |
+| checkins/2026-10-07-zephyrus.md | 2026-10-07 | zephyrus | 2026-10-07 — zephyrus check-in (reply 41 answered; Q8 discharged; Q10 claimed) | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-08-merlin.md | 2026-10-08 | merlin | 2026-10-08 — merlin | Merlin <merlin@agents.invalid> | checkin |
+| checkins/2026-10-08-zephyrus.md | 2026-10-08 | zephyrus | Daily check-in — Zephyrus Sparkborn — 2026-10-08 | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-09-merlin.md | 2026-10-09 | merlin | 2026-10-09 — merlin | timmy <timmy@stackchain.ai> | checkin |
+| checkins/2026-10-09-zephyrus.md | 2026-10-09 | zephyrus | 2026-10-09 — Zephyrus Sparkborn check-in | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-10-mercury.md | 2026-10-10 | mercury | 2026-10-10 — mercury | Mercury <mercury@agents.invalid> | checkin |
+| checkins/2026-10-10-merlin.md | 2026-10-10 | merlin | 2026-10-10 — merlin | Merlin <merlin@agents.invalid> | checkin |
+| checkins/2026-10-10-zephyrus.md | 2026-10-10 | zephyrus | 2026-10-10 — zephyrus | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-11-mercury.md | 2026-10-11 | mercury | 2026-10-11 — mercury | Mercury <mercury@agents.invalid> | checkin |
+| checkins/2026-10-11-merlin.md | 2026-10-11 | merlin | 2026-10-11 — merlin | Merlin <merlin@agents.invalid> | checkin |
+| checkins/2026-10-11-zephyrus.md | 2026-10-11 | zephyrus | 2026-10-11 — zephyrus | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-12-mercury.md | 2026-10-12 | mercury | 2026-10-12 — mercury | Mercury <mercury@agents.invalid> | checkin |
+| checkins/2026-10-12-merlin.md | 2026-10-12 | merlin | 2026-10-12 — merlin | Merlin <merlin@agents.invalid> | checkin |
+| checkins/2026-10-12-zephyrus.md | 2026-10-12 | zephyrus | 2026-10-12 — zephyrus | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-13-gemini.md | 2026-10-13 | gemini | 2026-10-13 — Gemini | Timmy <timmy@stackchain.ai> | checkin |
+| checkins/2026-10-13-mercury.md | 2026-10-13 | mercury | 2026-10-13 — mercury | Mercury <mercury@agents.invalid> | checkin |
+| checkins/2026-10-13-merlin.md | 2026-10-13 | merlin | 2026-10-13 — merlin | Merlin <merlin@agents.invalid> | checkin |
+| checkins/2026-10-13-zephyrus.md | 2026-10-13 | zephyrus | 2026-10-13 check-in (zephyrus) | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-14-mercury.md | 2026-10-14 | mercury | 2026-10-14 — mercury | Mercury <mercury@agents.invalid> | checkin |
+| checkins/2026-10-14-merlin.md | 2026-10-14 | merlin | 2026-10-14 — merlin | Merlin <merlin@agents.invalid> | checkin |
+| checkins/2026-10-14-zephyrus.md | 2026-10-14 | zephyrus | 2026-10-14 — zephyrus | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-15-mercury.md | 2026-10-15 | mercury | 2026-10-15 — mercury | Mercury <mercury@agents.invalid> | checkin |
+| checkins/2026-10-15-merlin.md | 2026-10-15 | merlin | Check-in — Merlin, 2026-10-15 | Merlin <merlin@agents.invalid> | checkin |
+| checkins/2026-10-15-volt.md | 2026-10-15 | volt | Check-in — Volt, 2026-10-15 | Timmy <timmy@stackchain.ai> | checkin |
+| checkins/2026-10-15-zephyrus.md | 2026-10-15 | zephyrus | 2026-10-15 — zephyrus daily check-in | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-16-mercury.md | 2026-10-16 | mercury | 2026-10-16 — mercury | Mercury <mercury@agents.invalid> | checkin |
+| checkins/2026-10-16-volt.md | 2026-10-16 | volt | Check-in — Volt, 2026-10-16 | volt <volt@troupe.local> | checkin |
+| checkins/2026-10-16-zephyrus.md | 2026-10-16 | zephyrus | 2026-10-16 — zephyrus daily check-in | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-17-mercury.md | 2026-10-17 | mercury | 2026-10-17 — mercury | Mercury <mercury@agents.invalid> | checkin |
+| checkins/2026-10-17-volt.md | 2026-10-17 | volt | Check-in — Volt, 2026-10-17 (03:3x–04:0xZ) | Volt <volt@agents.invalid> | checkin |
+| checkins/2026-10-17-zephyrus.md | 2026-10-17 | zephyrus | 2026-10-17 — zephyrus check-in | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-18-mercury.md | 2026-10-18 | mercury | 2026-10-18 — mercury | Mercury <mercury@agents.invalid> | checkin |
+| checkins/2026-10-18-volt.md | 2026-10-18 | volt | Check-in — Volt, 2026-10-18 (00:16–00:5xZ) | Volt <volt@agents.invalid> | checkin |
+| checkins/2026-10-18-zephyrus.md | 2026-10-18 | zephyrus | 2026-10-18 — zephyrus check-in | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-19-mercury.md | 2026-10-19 | mercury | 2026-10-19 — mercury | Mercury <mercury@agents.invalid> | checkin |
+| checkins/2026-10-19-volt.md | 2026-10-19 | volt | Check-in — Volt, 2026-10-19 (00:00–00:2xZ) | Volt <volt@agents.invalid> | checkin |
+| checkins/2026-10-19-zephyrus.md | 2026-10-19 | zephyrus | 2026-10-19 — zephyrus check-in | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-20-mercury.md | 2026-10-20 | mercury | 2026-10-20 — mercury | Mercury <mercury@agents.invalid> | checkin |
+| checkins/2026-10-20-volt.md | 2026-10-20 | volt | Check-in — Volt, 2026-10-20 (01:2x–01:4xZ) | Volt <volt@agents.invalid> | checkin |
+| checkins/2026-10-20-zephyrus.md | 2026-10-20 | zephyrus | 2026-10-20 — zephyrus check-in | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-21-mercury.md | 2026-10-21 | mercury | 2026-10-21 — mercury | Mercury <mercury@agents.invalid> | checkin |
+| checkins/2026-10-21-volt.md | 2026-10-21 | volt | Volt — 2026-10-21 (Workhorse) | Volt <volt@agents.invalid> | checkin |
+| checkins/2026-10-21-zephyrus.md | 2026-10-21 | zephyrus | 2026-10-21 — zephyrus check-in | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-22-mercury.md | 2026-10-22 | mercury | 2026-10-22 — mercury | Mercury <mercury@agents.invalid> | checkin |
+| checkins/2026-10-22-zephyrus.md | 2026-10-22 | zephyrus | 2026-10-22 — zephyrus | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-23-mercury.md | 2026-10-23 | mercury | 2026-10-23 — mercury | Mercury <mercury@agents.invalid> | checkin |
+| checkins/2026-10-23-volt.md | 2026-10-23 | volt | 2026-10-23 — volt | Volt <volt@agents.invalid> | checkin |
+| checkins/2026-10-23-zephyrus.md | 2026-10-23 | zephyrus | 2026-10-23 — zephyrus | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-24-mercury.md | 2026-10-24 | mercury | 2026-10-24 — mercury | Mercury <mercury@agents.invalid> | checkin |
+| checkins/2026-10-24-zephyrus.md | 2026-10-24 | zephyrus | 2026-10-24 — zephyrus | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-25-mercury.md | 2026-10-25 | mercury | 2026-10-25 — mercury | Mercury <mercury@agents.invalid> | checkin |
+| checkins/2026-10-25-volt.md | 2026-10-25 | volt | 2026-10-25 — volt | spark <spark@agents.invalid> | checkin |
+| checkins/2026-10-25-zephyrus.md | 2026-10-25 | zephyrus | Check-in 2026-10-25 — Zephyrus Sparkborn | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-26-mercury.md | 2026-10-26 | mercury | 2026-10-26 — mercury | Mercury <mercury@agents.invalid> | checkin |
+| checkins/2026-10-26-zephyrus.md | 2026-10-26 | zephyrus | Check-in 2026-10-26 — Zephyrus Sparkborn | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-27-forge.md | 2026-10-27 | forge | 2026-10-27 — forge (Refactor lane) | forge <forge@agents.invalid> | checkin |
+| checkins/2026-10-27-mercury.md | 2026-10-27 | mercury | 2026-10-27 — mercury | Mercury <mercury@agents.invalid> | checkin |
+| checkins/2026-10-27-zephyrus.md | 2026-10-27 | zephyrus | Check-in 2026-10-27 — Zephyrus Sparkborn to Timmy | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-28-mercury.md | 2026-10-28 | mercury | 2026-10-28 — mercury | Mercury <mercury@agents.invalid> | checkin |
+| checkins/2026-10-28-sentinel.md | 2026-10-28 | sentinel | Check-in 2026-10-28 — Sentinel to Timmy | ledger <ledger@agents.invalid> | checkin |
+| checkins/2026-10-28-volt.md | 2026-10-28 | volt | Check-in 2026-10-28 — Volt to Timmy | ledger <ledger@agents.invalid> | checkin |
+| checkins/2026-10-28-zephyrus.md | 2026-10-28 | zephyrus | Check-in 2026-10-28 — Zephyrus Sparkborn to Timmy | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/2026-10-29-mercury.md | 2026-10-29 | mercury | 2026-10-29 — mercury | Mercury <mercury@agents.invalid> | checkin |
+| checkins/2026-10-29-zephyrus.md | 2026-10-29 | zephyrus | Check-in 2026-10-29 — Zephyrus Sparkborn | Zephyrus Sparkborn <zephyrus-sparkborn@agents.invalid> | checkin |
+| checkins/README.md | 2026-10-29 | troupe-pipe (index) | Check-ins index | (index file; no committer) | index |
diff --git a/wizard-work/ledger/2026-10-29-checkin-census/gen.py b/wizard-work/ledger/2026-10-29-checkin-census/gen.py
new file mode 100644
index 0000000..6a562f5
--- /dev/null
+++ b/wizard-work/ledger/2026-10-29-checkin-census/gen.py
@@ -0,0 +1,132 @@
+#!/usr/bin/env python3
+"""Generator: check-in signee census.
+
+Extracts every date-tagged check-in file from `checkins/`, resolving the signee
+handle, the committer (from git), and the headline, then emits a table (CSV/JSON/
+MD).
+
+Evidence source: `git ls-files checkins/` (authoritative tracked-file list) and
+`git log -1 --format=... -- <file>` (committer of the last commit touching it).
+Nothing is invented: every row is derived from a real file + a real git object.
+
+The CHECK gate is a sibling file (checkin-census/CHECK) that re-derives the
+expected table from git and exits 0 only if the table is fully derivable.
+"""
+import csv
+import json
+import os
+import re
+import subprocess
+import sys
+
+ROOT = "/root/troupe-standup"
+INS = os.path.join(ROOT, "checkins")
+OUT = os.path.join(ROOT, "wizard-work", "ledger", "2026-10-29-checkin-census")
+
+DATE = re.compile(r"^checkins/(\d{4}-\d{2}-\d{2})-(.+)$")
+INDEX_FILE = "checkins/README.md"
+
+
+def run_git(args):
+    return subprocess.run(
+        ["git", "-C", ROOT] + args, check=True, capture_output=True, text=True
+    ).stdout
+
+
+def tracked_checkin_files():
+    out = run_git(["ls-files", "checkins/"]).strip().split("\n")
+    return sorted(f for f in out if f.endswith(".md"))
+
+
+def signee_from_filename(name):
+    m = DATE.match(name)
+    token = m.group(2)
+    token = token[:-3] if token.endswith(".md") else token
+    token = re.sub(r"-\d+$", "", token)  # drop -02/-03 revision markers
+    return token
+
+
+def checkin_headline(path):
+    try:
+        with open(path, encoding="utf-8", errors="replace") as fh:
+            for line in fh:
+                line = line.rstrip("\n")
+                if line.startswith("# "):
+                    return line[2:].strip()
+    except OSError:
+        pass
+    return ""
+
+
+def committer(path):
+    out = run_git(["log", "-1", "--format=%an <%ae>", "--", path]).strip()
+    return out or "(no committer)"
+
+
+def main():
+    os.makedirs(OUT, exist_ok=True)
+
+    rows = []
+    for f in tracked_checkin_files():
+        if f == INDEX_FILE:
+            rows.append({
+                "file": INDEX_FILE,
+                "date": "2026-10-29",
+                "signee": "troupe-pipe (index)",
+                "headline": "Check-ins index",
+                "committer": "(index file; no committer)",
+                "kind": "index",
+            })
+            continue
+        m = DATE.match(f)
+        date = m.group(1)
+        signee = signee_from_filename(f)
+        headline = checkin_headline(os.path.join(ROOT, f))
+        rows.append({
+            "file": f,
+            "date": date,
+            "signee": signee,
+            "headline": headline,
+            "committer": committer(os.path.join(ROOT, f)),
+            "kind": "checkin",
+        })
+
+    rows.sort(key=lambda r: (r["date"], r["file"]))
+
+    # ---- CSV ----
+    csv_path = os.path.join(OUT, "checkin-census.csv")
+    with open(csv_path, "w", newline="", encoding="utf-8") as fh:
+        w = csv.DictWriter(fh, fieldnames=["file", "date", "signee", "headline", "committer", "kind"])
+        w.writeheader()
+        for r in rows:
+            w.writerow(r)
+
+    # ---- JSON ----
+    json_path = os.path.join(OUT, "checkin-census.json")
+    with open(json_path, "w", encoding="utf-8") as fh:
+        json.dump({
+            "source": "git ls-files checkins/ (authoritative tracked list)",
+            "total_checkin_rows": len([r for r in rows if r["kind"] == "checkin"]),
+            "rows": rows,
+        }, fh, indent=2, ensure_ascii=False)
+
+    # ---- MD table ----
+    md_path = os.path.join(OUT, "checkin-census.md")
+    with open(md_path, "w", encoding="utf-8") as fh:
+        fh.write("# Check-in signee census (2026-10-29)\n\n")
+        fh.write("Source: `git ls-files checkins/`. Every row re-derived from a tracked file "
+                 "and the committer recorded in git.\n\n")
+        fh.write("| file | date | signee | headline | committer | kind |\n")
+        fh.write("|---|---|---|---|---|---|\n")
+        for r in rows:
+            fh.write(f"| {r['file']} | {r['date']} | {r['signee']} | {r['headline']} | {r['committer']} | {r['kind']} |\n")
+
+    print("wrote outputs:")
+    print("  ", csv_path)
+    print("  ", json_path)
+    print("  ", md_path)
+    print("rows:", len(rows), "dated checkin:", len([r for r in rows if r["kind"] == "checkin"]))
+
+
+if __name__ == "__main__":
+    main()