diff --git a/scripts/clean_origin_post_merge_receipt.py b/scripts/clean_origin_post_merge_receipt.py
new file mode 100644
index 00000000..ed296908
--- /dev/null
+++ b/scripts/clean_origin_post_merge_receipt.py
@@ -0,0 +1,256 @@
+#!/usr/bin/env python3
+"""Emit a clean-origin post-merge verification receipt for documentation drift controls."""
+
+from __future__ import annotations
+
+import argparse
+import json
+import re
+import shutil
+import subprocess
+import sys
+import tempfile
+from dataclasses import dataclass
+from pathlib import Path
+from typing import Sequence
+
+REDACTION_PATTERNS: tuple[re.Pattern[str], ...] = (
+    re.compile(r"(?i)authorization\s*:\s*(bearer\s+)?([^\s,'\"}]+)"),
+    re.compile(
+        r"(?i)(api[_-]?key|access[_-]?token|refresh[_-]?token|id[_-]?token|password|passwd|secret|authorization|bearer)\s*[:=]\s*([^\s,'\"}]+)"
+    ),
+    re.compile(r"\bgh[pousr]_[A-Za-z0-9_]{20,}\b"),
+    re.compile(r"\bsk-[A-Za-z0-9][A-Za-z0-9_-]{16,}\b"),
+    re.compile(r"\b[A-Za-z0-9_-]{20,}\.[A-Za-z0-9_-]{20,}\.[A-Za-z0-9_-]{20,}\b"),
+)
+
+DRIFT_MARKERS = (
+    "drift",
+    "stale",
+    "out of date",
+    "source_commit",
+    "refresh_needed",
+    "wiki-lint",
+    "derived_outputs",
+)
+TOOLING_MARKERS = (
+    "command not found",
+    "no such file or directory",
+    "modulenotfounderror",
+    "importerror",
+    "permission denied",
+    "timed out",
+)
+
+
+@dataclass(frozen=True)
+class CommandResult:
+    command: str
+    status: str
+    summary: str
+    failure_class: str | None = None
+
+
+def redact(text: str) -> str:
+    redacted = text
+    for pattern in REDACTION_PATTERNS:
+
+        def repl(match: re.Match[str]) -> str:
+            if match.re.pattern.lower().startswith("(?i)authorization"):
+                return "Authorization: <REDACTED>"
+            if match.lastindex and match.lastindex >= 2:
+                return f"{match.group(1)}=<REDACTED>"
+            return "<REDACTED>"
+
+        redacted = pattern.sub(repl, redacted)
+    return redacted
+
+
+def summarize(stdout: str, stderr: str, limit: int) -> str:
+    combined = redact("\n".join(part for part in (stdout, stderr) if part).strip())
+    if not combined:
+        return "no output"
+    single_line = " | ".join(line.strip() for line in combined.splitlines() if line.strip())
+    if len(single_line) <= limit:
+        return single_line
+    return single_line[: max(0, limit - 15)].rstrip() + " …<truncated>"
+
+
+def classify_failure(command: str, summary: str, returncode: int) -> str:
+    haystack = f"{command}\n{summary}".lower()
+    if any(marker in haystack for marker in TOOLING_MARKERS):
+        return "tooling_failure"
+    if any(marker in haystack for marker in DRIFT_MARKERS):
+        return "new_drift"
+    if returncode != 0:
+        return "baseline_noise"
+    return "none"
+
+
+def run_git(args: Sequence[str], repo_root: Path) -> str:
+    completed = subprocess.run(
+        ["git", *args],
+        cwd=repo_root,
+        text=True,
+        stdout=subprocess.PIPE,
+        stderr=subprocess.PIPE,
+        check=True,
+    )
+    return completed.stdout.strip()
+
+
+def _as_text(value: str | bytes | None) -> str:
+    if value is None:
+        return ""
+    if isinstance(value, bytes):
+        return value.decode("utf-8", errors="replace")
+    return value
+
+
+def run_command(command: str, cwd: Path, timeout: int, summary_limit: int) -> CommandResult:
+    try:
+        completed = subprocess.run(
+            ["bash", "-lc", command],
+            cwd=cwd,
+            shell=False,
+            text=True,
+            stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE,
+            timeout=timeout,
+        )
+    except subprocess.TimeoutExpired as exc:
+        summary = summarize(
+            _as_text(exc.stdout),
+            _as_text(exc.stderr) or "timed out",
+            summary_limit,
+        )
+        return CommandResult(
+            command=command,
+            status="fail",
+            summary=summary,
+            failure_class="tooling_failure",
+        )
+
+    summary = summarize(completed.stdout, completed.stderr, summary_limit)
+    if completed.returncode == 0:
+        return CommandResult(command=command, status="pass", summary=summary)
+    return CommandResult(
+        command=command,
+        status="fail",
+        summary=summary,
+        failure_class=classify_failure(command, summary, completed.returncode),
+    )
+
+
+def create_clean_worktree(source_repo: Path, base_ref: str) -> Path:
+    temp_parent = Path(tempfile.mkdtemp(prefix="lifeos-clean-origin-receipt."))
+    worktree = temp_parent / "worktree"
+    subprocess.run(
+        ["git", "worktree", "add", "--detach", str(worktree), base_ref],
+        cwd=source_repo,
+        text=True,
+        stdout=subprocess.PIPE,
+        stderr=subprocess.PIPE,
+        check=True,
+    )
+    return worktree
+
+
+def remove_clean_worktree(source_repo: Path, worktree: Path) -> None:
+    subprocess.run(
+        ["git", "worktree", "remove", "--force", str(worktree)],
+        cwd=source_repo,
+        text=True,
+        stdout=subprocess.PIPE,
+        stderr=subprocess.PIPE,
+        check=False,
+    )
+    shutil.rmtree(worktree.parent, ignore_errors=True)
+
+
+def build_receipt(args: argparse.Namespace) -> tuple[dict[str, object], int]:
+    repo_root = Path(args.repo_root).resolve()
+    if not repo_root.exists():
+        raise SystemExit(f"repo root does not exist: {repo_root}")
+
+    run_git(["fetch", "origin", "main", "--prune"], repo_root)
+    verified_commit = run_git(["rev-parse", args.base_ref], repo_root)
+    worktree = create_clean_worktree(repo_root, args.base_ref)
+    try:
+        results = [
+            run_command(command, worktree, args.timeout, args.summary_limit)
+            for command in args.command
+        ]
+        dirty_status = run_git(["status", "--short"], worktree)
+    finally:
+        remove_clean_worktree(repo_root, worktree)
+
+    failed = [result for result in results if result.status != "pass"]
+    if not failed:
+        completion_claim = "conductor_verified"
+    elif any(result.failure_class == "new_drift" for result in failed):
+        completion_claim = "follow_up_required"
+    else:
+        completion_claim = "failed"
+
+    receipt: dict[str, object] = {
+        "repo": args.repo,
+        "base_ref": args.base_ref,
+        "verified_commit": verified_commit,
+        "commands": list(args.command),
+        "results": [
+            {
+                key: value
+                for key, value in {
+                    "command": result.command,
+                    "status": result.status,
+                    "summary": result.summary,
+                    "failure_class": result.failure_class,
+                }.items()
+                if value is not None
+            }
+            for result in results
+        ],
+        "dirty_worktree_after_verification": bool(dirty_status),
+        "follow_up_issues_created": list(args.follow_up_issue),
+        "completion_claim": completion_claim,
+    }
+    return receipt, 0 if completion_claim == "conductor_verified" else 1
+
+
+def parse_args(argv: Sequence[str]) -> argparse.Namespace:
+    parser = argparse.ArgumentParser(
+        description=(
+            "Run post-merge verification from a clean origin/main worktree "
+            "and emit a redacted receipt."
+        )
+    )
+    parser.add_argument("--repo-root", default=Path(__file__).resolve().parent.parent)
+    parser.add_argument("--repo", default="marcusglee11/LifeOS")
+    parser.add_argument("--base-ref", default="origin/main")
+    parser.add_argument(
+        "--command",
+        action="append",
+        required=True,
+        help="Verification command to run inside the clean detached worktree; repeatable.",
+    )
+    parser.add_argument("--follow-up-issue", action="append", default=[])
+    parser.add_argument("--timeout", type=int, default=300)
+    parser.add_argument("--summary-limit", type=int, default=500)
+    parser.add_argument("--output", type=Path)
+    return parser.parse_args(argv)
+
+
+def main(argv: Sequence[str] | None = None) -> int:
+    args = parse_args(argv or sys.argv[1:])
+    receipt, exit_code = build_receipt(args)
+    output = json.dumps(receipt, indent=2, sort_keys=False) + "\n"
+    if args.output:
+        args.output.parent.mkdir(parents=True, exist_ok=True)
+        args.output.write_text(output, encoding="utf-8")
+    print(output, end="")
+    return exit_code
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())
diff --git a/tests_doc/test_clean_origin_post_merge_receipt.py b/tests_doc/test_clean_origin_post_merge_receipt.py
new file mode 100644
index 00000000..9170b0ee
--- /dev/null
+++ b/tests_doc/test_clean_origin_post_merge_receipt.py
@@ -0,0 +1,121 @@
+from __future__ import annotations
+
+import importlib.util
+import sys
+from argparse import Namespace
+from pathlib import Path
+
+SCRIPT = Path(__file__).resolve().parents[1] / "scripts" / "clean_origin_post_merge_receipt.py"
+spec = importlib.util.spec_from_file_location("clean_origin_post_merge_receipt", SCRIPT)
+assert spec is not None
+receipt = importlib.util.module_from_spec(spec)
+sys.modules[spec.name] = receipt
+assert spec.loader is not None
+spec.loader.exec_module(receipt)
+
+
+def test_redacts_token_shaped_output_from_summary() -> None:
+    summary = receipt.summarize(
+        "access_token=ghp_abcdefghijklmnopqrstuvwxyz123456 password=hunter2",
+        "Authorization: Bearer sk-testsecretsecretsecretsecret",
+        500,
+    )
+
+    assert "ghp_" not in summary
+    assert "hunter2" not in summary
+    assert "sk-test" not in summary
+    assert "testsecret" not in summary
+    assert "Bearer" not in summary
+    assert "<REDACTED>" in summary
+
+
+def test_build_receipt_uses_origin_main_clean_worktree_and_records_success(
+    monkeypatch, tmp_path
+) -> None:
+    calls: list[tuple[str, object]] = []
+    clean = tmp_path / "clean"
+    clean.mkdir()
+
+    def fake_run_git(args, repo_root):
+        calls.append(("git", tuple(args)))
+        if tuple(args) == ("rev-parse", "origin/main"):
+            return "a" * 40
+        if tuple(args) == ("status", "--short"):
+            return ""
+        return ""
+
+    monkeypatch.setattr(receipt, "run_git", fake_run_git)
+    monkeypatch.setattr(receipt, "create_clean_worktree", lambda repo_root, base_ref: clean)
+    monkeypatch.setattr(
+        receipt,
+        "remove_clean_worktree",
+        lambda repo_root, worktree: calls.append(("remove", worktree)),
+    )
+    monkeypatch.setattr(
+        receipt,
+        "run_command",
+        lambda command, cwd, timeout, summary_limit: receipt.CommandResult(
+            command=command, status="pass", summary="ok"
+        ),
+    )
+
+    args = Namespace(
+        repo_root=tmp_path,
+        repo="marcusglee11/LifeOS",
+        base_ref="origin/main",
+        command=["python3 -m doc_steward.cli wiki-lint ."],
+        follow_up_issue=[],
+        timeout=10,
+        summary_limit=200,
+    )
+    data, exit_code = receipt.build_receipt(args)
+
+    assert exit_code == 0
+    assert ("git", ("fetch", "origin", "main", "--prune")) in calls
+    assert data["base_ref"] == "origin/main"
+    assert data["verified_commit"] == "a" * 40
+    assert data["dirty_worktree_after_verification"] is False
+    assert data["completion_claim"] == "conductor_verified"
+
+
+def test_failed_wiki_drift_is_follow_up_required(monkeypatch, tmp_path) -> None:
+    clean = tmp_path / "clean"
+    clean.mkdir()
+    monkeypatch.setattr(
+        receipt,
+        "run_git",
+        lambda args, repo_root: "b" * 40 if tuple(args) == ("rev-parse", "origin/main") else "",
+    )
+    monkeypatch.setattr(receipt, "create_clean_worktree", lambda repo_root, base_ref: clean)
+    monkeypatch.setattr(receipt, "remove_clean_worktree", lambda repo_root, worktree: None)
+    monkeypatch.setattr(
+        receipt,
+        "run_command",
+        lambda command, cwd, timeout, summary_limit: receipt.CommandResult(
+            command=command,
+            status="fail",
+            summary="wiki-lint found stale source_commit_max drift",
+            failure_class="new_drift",
+        ),
+    )
+
+    args = Namespace(
+        repo_root=tmp_path,
+        repo="marcusglee11/LifeOS",
+        base_ref="origin/main",
+        command=["python3 -m doc_steward.cli wiki-lint ."],
+        follow_up_issue=["https://github.com/marcusglee11/LifeOS/issues/120"],
+        timeout=10,
+        summary_limit=200,
+    )
+    data, exit_code = receipt.build_receipt(args)
+
+    assert exit_code == 1
+    assert data["completion_claim"] == "follow_up_required"
+    assert data["results"][0]["failure_class"] == "new_drift"
+    assert data["follow_up_issues_created"] == ["https://github.com/marcusglee11/LifeOS/issues/120"]
+
+
+def test_script_never_uses_shell_true() -> None:
+    source = SCRIPT.read_text()
+    assert "shell=True" not in source