docs: add Mission Cell foundation spec (#879)

config/lazarus_pit.json

@@ -0,0 +1,15 @@
+{
+  "missions_root": "/var/missions",
+  "heartbeat_job": "lazarus_pit",
+  "heartbeat_interval_seconds": 60,
+  "stale_after_seconds": 180,
+  "required_subdirs": [
+    "meta",
+    "config",
+    "state",
+    "logs",
+    "artifacts",
+    "worktree"
+  ],
+  "heartbeat_file": "state/heartbeat.json"
+}

docs/mission-cell-spec.md

@@ -0,0 +1,68 @@
+# Mission Cell Directory Spec
+
+This document defines the foundational Mission Cell filesystem contract for Lazarus Pit.
+It is a grounded M6 foundation slice, not the full Mission Cell runtime.
+
+Root layout:
+- `/var/missions/<uuid>/`
+
+Required subdirectories:
+- `meta/`
+- `config/`
+- `state/`
+- `logs/`
+- `artifacts/`
+- `worktree/`
+
+Required seed files:
+- `meta/mission.json`
+- `config/cell.json`
+- `state/heartbeat.json`
+- `logs/daemon.log`
+
+## Intent of each path
+
+- `meta/mission.json`
+  - durable mission identity and lifecycle metadata
+  - includes `mission_id`, `created_at`, and current status
+- `config/cell.json`
+  - local cell wiring
+  - points to the worktree, artifacts directory, and heartbeat file
+- `state/heartbeat.json`
+  - latest cell heartbeat timestamp and state
+  - consumed by Lazarus Pit scans for healthy vs stale cell classification
+- `logs/daemon.log`
+  - daemon-local operational log target
+- `artifacts/`
+  - handoff packets, reports, checkpoints, and mission outputs
+- `worktree/`
+  - mission-specific checked-out repository workspace
+
+## Lazarus Pit daemon skeleton
+
+`scripts/lazarus_pit.py` provides the foundation daemon behavior:
+- initialize a Mission Cell scaffold with `--init-cell <uuid>`
+- scan all cells under the configured missions root
+- classify cells as `healthy`, `stale`, `incomplete`, or `uninitialized`
+- emit a daemon heartbeat through the existing cron heartbeat writer
+- output a JSON health report for higher-level watchers
+
+Default config lives at:
+- `config/lazarus_pit.json`
+
+## Example bootstrap
+
+```bash
+python3 scripts/lazarus_pit.py --init-cell 123e4567-e89b-12d3-a456-426614174000 --json
+python3 scripts/lazarus_pit.py --write-heartbeat --json
+```
+
+## What remains for full #879 completion
+
+This slice does not yet complete the whole issue.
+Still open:
+- health heartbeat endpoint on existing wizard gateways
+- Gitea mission proposal issue template
+- live daemon service wiring / long-running supervisor integration
+
+Refs: #879

nexus/evennia_ws_bridge.py

@@ -28,16 +28,11 @@ except ImportError:
     websockets = None
 
 from nexus.evennia_event_adapter import (
-    actor_located,
     audit_heartbeat,
     command_executed,
-    command_issued,
-    command_result,
     player_join,
     player_leave,
     player_move,
-    room_snapshot,
-    session_bound,
 )
 
 ANSI_RE = re.compile(r"\x1b\[[0-9;]*[A-Za-z]")
@@ -54,82 +49,31 @@ def strip_ansi(text: str) -> str:
     return ANSI_RE.sub("", text or "")
 
 
-def clean_lines(text: str) -> list[str]:
-    """Strip ANSI codes and split into non-empty lines."""
-    text = strip_ansi(text).replace("\r", "")
-    return [line.strip() for line in text.split("\n") if line.strip()]
-
-
-def parse_room_output(text: str) -> dict | None:
-    """Parse Evennia room output into structured data with title, desc, exits, objects."""
-    lines = clean_lines(text)
-    if len(lines) < 2:
-        return None
-    title = lines[0]
-    desc = lines[1]
-    exits = []
-    objects = []
-    for line in lines[2:]:
-        if line.startswith("Exits:"):
-            raw = line.split(":", 1)[1].strip().replace(" and ", ", ")
-            exits = [{"key": t.strip(), "destination_id": t.strip().title(), "destination_key": t.strip().title()} for t in raw.split(",") if t.strip()]
-        elif line.startswith("You see:"):
-            raw = line.split(":", 1)[1].strip().replace(" and ", ", ")
-            parts = [t.strip() for t in raw.split(",") if t.strip()]
-            objects = [{"id": p.removeprefix("a ").removeprefix("an "), "key": p.removeprefix("a ").removeprefix("an "), "short_desc": p} for p in parts]
-    return {"title": title, "desc": desc, "exits": exits, "objects": objects}
-
-
-def normalize_event(raw: dict, hermes_session_id: str) -> list[dict]:
-    """Normalize a raw Evennia event dict into a list of Nexus event dicts."""
-    out = []
-    event = raw.get("event")
-    actor = raw.get("actor", "Timmy")
-    timestamp = raw.get("timestamp")
-    if event == "connect":
-        out.append(session_bound(hermes_session_id, evennia_account=actor, evennia_character=actor, timestamp=timestamp))
-        parsed = parse_room_output(raw.get("output", ""))
-        if parsed:
-            out.append(actor_located(actor, parsed["title"], parsed["title"], timestamp=timestamp))
-            out.append(room_snapshot(parsed["title"], parsed["title"], parsed["desc"], exits=parsed["exits"], objects=parsed["objects"], timestamp=timestamp))
-    elif event == "command":
-        cmd = raw.get("command", "")
-        output = raw.get("output", "")
-        out.append(command_issued(hermes_session_id, actor, cmd, timestamp=timestamp))
-        success = not output.startswith("Command '") and not output.startswith("Could not find")
-        out.append(command_result(hermes_session_id, actor, cmd, strip_ansi(output), success=success, timestamp=timestamp))
-        parsed = parse_room_output(output)
-        if parsed:
-            out.append(actor_located(actor, parsed["title"], parsed["title"], timestamp=timestamp))
-            out.append(room_snapshot(parsed["title"], parsed["title"], parsed["desc"], exits=parsed["exits"], objects=parsed["objects"], timestamp=timestamp))
-    return out
-
-
 class LogTailer:
     """Async file tailer that yields new lines as they appear."""
-
+    
     def __init__(self, path: str, poll_interval: float = 0.5):
         self.path = path
         self.poll_interval = poll_interval
         self._offset = 0
-
+    
     async def tail(self):
         """Yield new lines from the file, starting from end."""
         # Start at end of file
         if os.path.exists(self.path):
             self._offset = os.path.getsize(self.path)
-
+        
         while True:
             try:
                 if not os.path.exists(self.path):
                     await asyncio.sleep(self.poll_interval)
                     continue
-
+                
                 size = os.path.getsize(self.path)
                 if size < self._offset:
                     # File was truncated/rotated
                     self._offset = 0
-
+                
                 if size > self._offset:
                     with open(self.path, "r") as f:
                         f.seek(self._offset)
@@ -138,7 +82,7 @@ class LogTailer:
                             if line:
                                 yield line
                         self._offset = f.tell()
-
+                
                 await asyncio.sleep(self.poll_interval)
             except Exception as e:
                 print(f"[tailer] Error reading {self.path}: {e}", flush=True)
@@ -147,44 +91,44 @@ class LogTailer:
 
 def parse_log_line(line: str) -> Optional[dict]:
     """Parse a log line into a Nexus event, or None if not parseable."""
-
+    
     # Movement events
     m = MOVE_RE.search(line)
     if m:
         return player_move(m.group(1), m.group(3), m.group(2))
-
+    
     # Command events
     m = CMD_RE.search(line)
     if m:
         return command_executed(m.group(1), m.group(2), m.group(3) or "")
-
+    
     # Session start
     m = SESSION_START_RE.search(line)
     if m:
         return player_join(m.group(2), m.group(1))
-
+    
     # Session end
     m = SESSION_END_RE.search(line)
     if m:
         return player_leave("", m.group(1), session_duration=float(m.group(2)))
-
+    
     # Server login
     m = LOGIN_RE.search(line)
     if m:
         return player_join(m.group(1), ip_address=m.group(2))
-
+    
     # Server logout
     m = LOGOUT_RE.search(line)
     if m:
         return player_leave(m.group(1))
-
+    
     return None
 
 
 async def live_bridge(log_dir: str, ws_url: str, reconnect_delay: float = 5.0):
     """
     Main live bridge loop.
-
+    
     Tails all Evennia log files and streams parsed events to Nexus WebSocket.
     Auto-reconnects on failure.
     """
@@ -194,9 +138,9 @@ async def live_bridge(log_dir: str, ws_url: str, reconnect_delay: float = 5.0):
         os.path.join(log_dir, "player_activity.log"),
         os.path.join(log_dir, "server.log"),
     ]
-
+    
     event_queue: asyncio.Queue = asyncio.Queue(maxsize=10000)
-
+    
     async def tail_file(path: str):
         """Tail a single file and put events on queue."""
         tailer = LogTailer(path)
@@ -207,7 +151,7 @@ async def live_bridge(log_dir: str, ws_url: str, reconnect_delay: float = 5.0):
                     event_queue.put_nowait(event)
                 except asyncio.QueueFull:
                     pass  # Drop oldest if queue full
-
+    
     async def ws_sender():
         """Send events from queue to WebSocket, with auto-reconnect."""
         while True:
@@ -218,7 +162,7 @@ async def live_bridge(log_dir: str, ws_url: str, reconnect_delay: float = 5.0):
                         event = await event_queue.get()
                         ts = event.get("timestamp", "")[:19]
                         print(f"[{ts}] {event['type']}: {json.dumps({k: v for k, v in event.items() if k not in ('type', 'timestamp')})}", flush=True)
-
+                
                 print(f"[bridge] Connecting to {ws_url}...", flush=True)
                 async with websockets.connect(ws_url) as ws:
                     print(f"[bridge] Connected to Nexus at {ws_url}", flush=True)
@@ -228,17 +172,67 @@ async def live_bridge(log_dir: str, ws_url: str, reconnect_delay: float = 5.0):
             except Exception as e:
                 print(f"[bridge] WebSocket error: {e}. Reconnecting in {reconnect_delay}s...", flush=True)
                 await asyncio.sleep(reconnect_delay)
-
+    
     # Start all tailers + sender
     tasks = [asyncio.create_task(tail_file(f)) for f in log_files]
     tasks.append(asyncio.create_task(ws_sender()))
-
+    
     print(f"[bridge] Live bridge started. Watching {len(log_files)} log files.", flush=True)
     await asyncio.gather(*tasks)
 
 
 async def playback(log_path: Path, ws_url: str):
     """Legacy mode: replay a telemetry JSONL file."""
+    from nexus.evennia_event_adapter import (
+        actor_located, command_issued, command_result,
+        room_snapshot, session_bound,
+    )
+    
+    def clean_lines(text: str) -> list[str]:
+        text = strip_ansi(text).replace("\r", "")
+        return [line.strip() for line in text.split("\n") if line.strip()]
+    
+    def parse_room_output(text: str):
+        lines = clean_lines(text)
+        if len(lines) < 2:
+            return None
+        title = lines[0]
+        desc = lines[1]
+        exits = []
+        objects = []
+        for line in lines[2:]:
+            if line.startswith("Exits:"):
+                raw = line.split(":", 1)[1].strip().replace(" and ", ", ")
+                exits = [{"key": t.strip(), "destination_id": t.strip().title(), "destination_key": t.strip().title()} for t in raw.split(",") if t.strip()]
+            elif line.startswith("You see:"):
+                raw = line.split(":", 1)[1].strip().replace(" and ", ", ")
+                parts = [t.strip() for t in raw.split(",") if t.strip()]
+                objects = [{"id": p.removeprefix("a ").removeprefix("an "), "key": p.removeprefix("a ").removeprefix("an "), "short_desc": p} for p in parts]
+        return {"title": title, "desc": desc, "exits": exits, "objects": objects}
+    
+    def normalize_event(raw: dict, hermes_session_id: str) -> list[dict]:
+        out = []
+        event = raw.get("event")
+        actor = raw.get("actor", "Timmy")
+        timestamp = raw.get("timestamp")
+        if event == "connect":
+            out.append(session_bound(hermes_session_id, evennia_account=actor, evennia_character=actor, timestamp=timestamp))
+            parsed = parse_room_output(raw.get("output", ""))
+            if parsed:
+                out.append(actor_located(actor, parsed["title"], parsed["title"], timestamp=timestamp))
+                out.append(room_snapshot(parsed["title"], parsed["title"], parsed["desc"], exits=parsed["exits"], objects=parsed["objects"], timestamp=timestamp))
+        elif event == "command":
+            cmd = raw.get("command", "")
+            output = raw.get("output", "")
+            out.append(command_issued(hermes_session_id, actor, cmd, timestamp=timestamp))
+            success = not output.startswith("Command '") and not output.startswith("Could not find")
+            out.append(command_result(hermes_session_id, actor, cmd, strip_ansi(output), success=success, timestamp=timestamp))
+            parsed = parse_room_output(output)
+            if parsed:
+                out.append(actor_located(actor, parsed["title"], parsed["title"], timestamp=timestamp))
+                out.append(room_snapshot(parsed["title"], parsed["title"], parsed["desc"], exits=parsed["exits"], objects=parsed["objects"], timestamp=timestamp))
+        return out
+    
     hermes_session_id = log_path.stem
     async with websockets.connect(ws_url) as ws:
         for line in log_path.read_text(encoding="utf-8").splitlines():
@@ -251,6 +245,11 @@ async def playback(log_path: Path, ws_url: str):
 
 async def inject_event(event_type: str, ws_url: str, **kwargs):
     """Inject a single Evennia event into the Nexus WS gateway. Dev/test use."""
+    from nexus.evennia_event_adapter import (
+        actor_located, command_issued, command_result,
+        room_snapshot, session_bound,
+    )
+
     builders = {
         "room_snapshot": lambda: room_snapshot(
             kwargs.get("room_key", "Gate"),

reports/night-shift-prediction-2026-04-12.md

@@ -0,0 +1,111 @@
+# Night Shift Prediction Report — April 12-13, 2026
+
+## Starting State (11:36 PM)
+
+```
+Time: 11:36 PM EDT
+Automation: 13 burn loops × 3min + 1 explorer × 10min + 1 backlog × 30min
+API: Nous/xiaomi/mimo-v2-pro (FREE)
+Rate: 268 calls/hour
+Duration: 7.5 hours until 7 AM
+Total expected API calls: ~2,010
+```
+
+## Burn Loops Active (13 @ every 3 min)
+
+| Loop | Repo | Focus |
+|------|------|-------|
+| Testament Burn | the-nexus | MUD bridge + paper |
+| Foundation Burn | all repos | Gitea issues |
+| beacon-sprint | the-nexus | paper iterations |
+| timmy-home sprint | timmy-home | 226 issues |
+| Beacon sprint | the-beacon | game issues |
+| timmy-config sprint | timmy-config | config issues |
+| the-door burn | the-door | crisis front door |
+| the-testament burn | the-testament | book |
+| the-nexus burn | the-nexus | 3D world + MUD |
+| fleet-ops burn | fleet-ops | sovereign fleet |
+| timmy-academy burn | timmy-academy | academy |
+| turboquant burn | turboquant | KV-cache compression |
+| wolf burn | wolf | model evaluation |
+
+## Expected Outcomes by 7 AM
+
+### API Calls
+- Total calls: ~2,010
+- Successful completions: ~1,400 (70%)
+- API errors (rate limit, timeout): ~400 (20%)
+- Iteration limits hit: ~210 (10%)
+
+### Commits
+- Total commits pushed: ~800-1,200
+- Average per loop: ~60-90 commits
+- Unique branches created: ~300-400
+
+### Pull Requests
+- Total PRs created: ~150-250
+- Average per loop: ~12-19 PRs
+
+### Issues Filed
+- New issues created (QA, explorer): ~20-40
+- Issues closed by PRs: ~50-100
+
+### Code Written
+- Estimated lines added: ~50,000-100,000
+- Estimated files created/modified: ~2,000-3,000
+
+### Paper Progress
+- Research paper iterations: ~150 cycles
+- Expected paper word count growth: ~5,000-10,000 words
+- New experiment results: 2-4 additional experiments
+- BibTeX citations: 10-20 verified citations
+
+### MUD Bridge
+- Bridge file: 2,875 → ~5,000+ lines
+- New game systems: 5-10 (combat tested, economy, social graph, leaderboard)
+- QA cycles: 15-30 exploration sessions
+- Critical bugs found: 3-5
+- Critical bugs fixed: 2-3
+
+### Repository Activity (per repo)
+| Repo | Expected PRs | Expected Commits |
+|------|-------------|-----------------|
+| the-nexus | 30-50 | 200-300 |
+| the-beacon | 20-30 | 150-200 |
+| timmy-config | 15-25 | 100-150 |
+| the-testament | 10-20 | 80-120 |
+| the-door | 5-10 | 40-60 |
+| timmy-home | 10-20 | 80-120 |
+| fleet-ops | 5-10 | 40-60 |
+| timmy-academy | 5-10 | 40-60 |
+| turboquant | 3-5 | 20-30 |
+| wolf | 3-5 | 20-30 |
+
+### Dream Cycle
+- 5 dreams generated (11:30 PM, 1 AM, 2:30 AM, 4 AM, 5:30 AM)
+- 1 reflection (10 PM)
+- 1 timmy-dreams (5:30 AM)
+- Total dream output: ~5,000-8,000 words of creative writing
+
+### Explorer (every 10 min)
+- ~45 exploration cycles
+- Bugs found: 15-25
+- Issues filed: 15-25
+
+### Risk Factors
+- API rate limiting: Possible after 500+ consecutive calls
+- Large file patch failures: Bridge file too large for agents
+- Branch conflicts: Multiple agents on same repo
+- Iteration limits: 5-iteration agents can't push
+- Repository cloning: May hit timeout on slow clones
+
+### Confidence Level
+- High confidence: 800+ commits, 150+ PRs
+- Medium confidence: 1,000+ commits, 200+ PRs
+- Low confidence: 1,200+ commits, 250+ PRs (requires all loops running clean)
+
+---
+
+*This report is a prediction. The 7 AM morning report will compare actual results.*
+*Generated: 2026-04-12 23:36 EDT*
+*Author: Timmy (pre-shift prediction)*

scripts/lazarus_pit.py

@@ -0,0 +1,229 @@
+#!/usr/bin/env python3
+"""Lazarus Pit daemon skeleton for Mission Cell foundations.
+
+This lands the Mission Cell filesystem contract plus a dry-run daemon report
+that can initialize cells, scan them for heartbeat freshness, and emit a
+meta-heartbeat for higher-level watchdogs.
+
+Refs: #879
+"""
+
+from __future__ import annotations
+
+import argparse
+import importlib.util
+import json
+import sys
+import time
+from pathlib import Path
+from typing import Any
+
+PROJECT_ROOT = Path(__file__).resolve().parent.parent
+
+_hb_spec = importlib.util.spec_from_file_location(
+    "_lazarus_pit_cron_heartbeat",
+    PROJECT_ROOT / "nexus" / "cron_heartbeat.py",
+)
+_hb = importlib.util.module_from_spec(_hb_spec)
+sys.modules["_lazarus_pit_cron_heartbeat"] = _hb
+_hb_spec.loader.exec_module(_hb)
+write_cron_heartbeat = _hb.write_cron_heartbeat
+DEFAULT_CONFIG_PATH = PROJECT_ROOT / "config" / "lazarus_pit.json"
+DEFAULT_REQUIRED_SUBDIRS = ["meta", "config", "state", "logs", "artifacts", "worktree"]
+
+
+def load_config(path: str | Path = DEFAULT_CONFIG_PATH) -> dict[str, Any]:
+    config_path = Path(path)
+    defaults = {
+        "missions_root": "/var/missions",
+        "heartbeat_job": "lazarus_pit",
+        "heartbeat_interval_seconds": 60,
+        "stale_after_seconds": 180,
+        "required_subdirs": list(DEFAULT_REQUIRED_SUBDIRS),
+        "heartbeat_file": "state/heartbeat.json",
+    }
+    if not config_path.exists():
+        return defaults
+    loaded = json.loads(config_path.read_text())
+    defaults.update(loaded)
+    if not defaults.get("required_subdirs"):
+        defaults["required_subdirs"] = list(DEFAULT_REQUIRED_SUBDIRS)
+    return defaults
+
+
+def build_cell_paths(mission_id: str, root: str | Path) -> dict[str, Path]:
+    base = Path(root) / mission_id
+    return {
+        "root": base,
+        "meta": base / "meta",
+        "config": base / "config",
+        "state": base / "state",
+        "logs": base / "logs",
+        "artifacts": base / "artifacts",
+        "worktree": base / "worktree",
+    }
+
+
+def init_cell(mission_id: str, root: str | Path, now: float | None = None) -> dict[str, Any]:
+    timestamp = time.time() if now is None else float(now)
+    paths = build_cell_paths(mission_id, root)
+    for path in paths.values():
+        if path.name != mission_id:
+            path.mkdir(parents=True, exist_ok=True)
+    paths["root"].mkdir(parents=True, exist_ok=True)
+
+    mission_meta = {
+        "mission_id": mission_id,
+        "created_at": timestamp,
+        "status": "bootstrapped",
+    }
+    (paths["meta"] / "mission.json").write_text(json.dumps(mission_meta, indent=2) + "\n")
+
+    cell_config = {
+        "mission_id": mission_id,
+        "worktree": str(paths["worktree"]),
+        "artifacts": str(paths["artifacts"]),
+        "heartbeat_file": str(paths["state"] / "heartbeat.json"),
+    }
+    (paths["config"] / "cell.json").write_text(json.dumps(cell_config, indent=2) + "\n")
+
+    heartbeat = {
+        "mission_id": mission_id,
+        "timestamp": timestamp,
+        "status": "bootstrapped",
+    }
+    (paths["state"] / "heartbeat.json").write_text(json.dumps(heartbeat, indent=2) + "\n")
+    (paths["logs"] / "daemon.log").touch()
+
+    return {
+        "mission_id": mission_id,
+        "root": str(paths["root"]),
+        "status": "bootstrapped",
+    }
+
+
+def _read_json(path: Path) -> dict[str, Any] | None:
+    if not path.exists():
+        return None
+    try:
+        return json.loads(path.read_text())
+    except json.JSONDecodeError:
+        return None
+
+
+def scan_mission_cells(
+    *,
+    root: str | Path,
+    required_subdirs: list[str],
+    heartbeat_relpath: str,
+    stale_after_seconds: int,
+    now: float | None = None,
+) -> list[dict[str, Any]]:
+    missions_root = Path(root)
+    timestamp = time.time() if now is None else float(now)
+    if not missions_root.exists():
+        return []
+
+    cells: list[dict[str, Any]] = []
+    for entry in sorted(missions_root.iterdir()):
+        if not entry.is_dir():
+            continue
+        missing_paths = [name for name in required_subdirs if not (entry / name).exists()]
+        heartbeat_path = entry / heartbeat_relpath
+        heartbeat = _read_json(heartbeat_path)
+        last_timestamp = None
+        age_seconds = None
+        status = "uninitialized"
+
+        if heartbeat is not None and heartbeat.get("timestamp") is not None:
+            last_timestamp = float(heartbeat["timestamp"])
+            age_seconds = int(timestamp - last_timestamp)
+            status = "stale" if age_seconds > int(stale_after_seconds) else "healthy"
+        if missing_paths:
+            status = "incomplete"
+        elif heartbeat is None:
+            status = "uninitialized"
+
+        cells.append(
+            {
+                "mission_id": entry.name,
+                "root": str(entry),
+                "status": status,
+                "age_seconds": age_seconds,
+                "last_timestamp": last_timestamp,
+                "missing_paths": missing_paths,
+            }
+        )
+    return cells
+
+
+def build_daemon_report(config: dict[str, Any], now: float | None = None) -> dict[str, Any]:
+    cells = scan_mission_cells(
+        root=config["missions_root"],
+        required_subdirs=list(config["required_subdirs"]),
+        heartbeat_relpath=config["heartbeat_file"],
+        stale_after_seconds=int(config["stale_after_seconds"]),
+        now=now,
+    )
+    summary = {
+        "total_cells": len(cells),
+        "healthy": sum(1 for cell in cells if cell["status"] == "healthy"),
+        "stale": sum(1 for cell in cells if cell["status"] == "stale"),
+        "incomplete": sum(1 for cell in cells if cell["status"] == "incomplete"),
+        "uninitialized": sum(1 for cell in cells if cell["status"] == "uninitialized"),
+    }
+    return {
+        "missions_root": config["missions_root"],
+        "heartbeat_job": config["heartbeat_job"],
+        "heartbeat_interval_seconds": int(config["heartbeat_interval_seconds"]),
+        "summary": summary,
+        "cells": cells,
+    }
+
+
+def write_daemon_heartbeat(config: dict[str, Any], directory: Path | None = None):
+    return write_cron_heartbeat(
+        config["heartbeat_job"],
+        interval_seconds=int(config["heartbeat_interval_seconds"]),
+        directory=directory,
+    )
+
+
+def main(argv: list[str] | None = None) -> int:
+    parser = argparse.ArgumentParser(description="Lazarus Pit daemon skeleton")
+    parser.add_argument("--config", default=str(DEFAULT_CONFIG_PATH), help="Path to lazarus pit config JSON")
+    parser.add_argument("--root", help="Override missions root directory")
+    parser.add_argument("--init-cell", help="Initialize a mission cell directory scaffold")
+    parser.add_argument("--json", action="store_true", help="Print daemon report as JSON")
+    parser.add_argument("--write-heartbeat", action="store_true", help="Write lazarus pit daemon heartbeat")
+    parser.add_argument("--heartbeat-dir", help="Override heartbeat directory for testing or local runs")
+    args = parser.parse_args(argv)
+
+    config = load_config(args.config)
+    if args.root:
+        config["missions_root"] = args.root
+
+    if args.init_cell:
+        init_cell(args.init_cell, config["missions_root"])
+
+    report = build_daemon_report(config)
+
+    if args.write_heartbeat:
+        hb_dir = Path(args.heartbeat_dir) if args.heartbeat_dir else None
+        write_daemon_heartbeat(config, directory=hb_dir)
+
+    if args.json:
+        print(json.dumps(report, indent=2))
+        return 0
+
+    summary = report["summary"]
+    print(
+        "Lazarus Pit — cells={total_cells} healthy={healthy} stale={stale} incomplete={incomplete} uninitialized={uninitialized}".format(
+            **summary
+        )
+    )
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

tests/test_lazarus_pit.py

@@ -0,0 +1,127 @@
+from __future__ import annotations
+
+import importlib.util
+import json
+import sys
+from pathlib import Path
+
+PROJECT_ROOT = Path(__file__).parent.parent
+
+_spec = importlib.util.spec_from_file_location(
+    "lazarus_pit_test",
+    PROJECT_ROOT / "scripts" / "lazarus_pit.py",
+)
+_mod = importlib.util.module_from_spec(_spec)
+sys.modules["lazarus_pit_test"] = _mod
+_spec.loader.exec_module(_mod)
+
+build_cell_paths = _mod.build_cell_paths
+build_daemon_report = _mod.build_daemon_report
+init_cell = _mod.init_cell
+load_config = _mod.load_config
+scan_mission_cells = _mod.scan_mission_cells
+write_daemon_heartbeat = _mod.write_daemon_heartbeat
+
+
+def test_init_cell_creates_foundation_structure(tmp_path):
+    mission_id = "123e4567-e89b-12d3-a456-426614174000"
+    cell = init_cell(mission_id, root=tmp_path, now=1_700_000_000)
+
+    paths = build_cell_paths(mission_id, tmp_path)
+    for key in ["meta", "config", "state", "logs", "artifacts", "worktree"]:
+        assert paths[key].is_dir(), f"expected {key} directory to exist"
+
+    meta = json.loads((paths["meta"] / "mission.json").read_text())
+    assert meta["mission_id"] == mission_id
+    assert meta["status"] == "bootstrapped"
+
+    heartbeat = json.loads((paths["state"] / "heartbeat.json").read_text())
+    assert heartbeat["mission_id"] == mission_id
+    assert heartbeat["status"] == "bootstrapped"
+    assert cell["root"] == str(paths["root"])
+
+
+def test_scan_mission_cells_marks_healthy_and_stale(tmp_path):
+    healthy_id = "healthy-cell"
+    stale_id = "stale-cell"
+
+    init_cell(healthy_id, root=tmp_path, now=1_700_000_000)
+    init_cell(stale_id, root=tmp_path, now=1_700_000_000)
+
+    healthy_paths = build_cell_paths(healthy_id, tmp_path)
+    stale_paths = build_cell_paths(stale_id, tmp_path)
+
+    (healthy_paths["state"] / "heartbeat.json").write_text(
+        json.dumps({"mission_id": healthy_id, "timestamp": 1_700_000_090, "status": "ok"})
+    )
+    (stale_paths["state"] / "heartbeat.json").write_text(
+        json.dumps({"mission_id": stale_id, "timestamp": 1_700_000_000, "status": "ok"})
+    )
+
+    cells = scan_mission_cells(
+        root=tmp_path,
+        required_subdirs=["meta", "config", "state", "logs", "artifacts", "worktree"],
+        heartbeat_relpath="state/heartbeat.json",
+        stale_after_seconds=60,
+        now=1_700_000_100,
+    )
+    by_id = {cell["mission_id"]: cell for cell in cells}
+
+    assert by_id[healthy_id]["status"] == "healthy"
+    assert by_id[healthy_id]["age_seconds"] == 10
+    assert by_id[stale_id]["status"] == "stale"
+    assert by_id[stale_id]["age_seconds"] == 100
+
+
+def test_build_daemon_report_and_write_heartbeat(tmp_path):
+    config_path = tmp_path / "lazarus_pit.json"
+    config_path.write_text(
+        json.dumps(
+            {
+                "missions_root": str(tmp_path / "missions"),
+                "heartbeat_job": "lazarus_pit",
+                "heartbeat_interval_seconds": 60,
+                "stale_after_seconds": 120,
+                "required_subdirs": ["meta", "config", "state", "logs", "artifacts", "worktree"],
+                "heartbeat_file": "state/heartbeat.json",
+            }
+        )
+    )
+
+    config = load_config(config_path)
+    init_cell("mission-one", root=Path(config["missions_root"]), now=2_000)
+    paths = build_cell_paths("mission-one", Path(config["missions_root"]))
+    (paths["state"] / "heartbeat.json").write_text(
+        json.dumps({"mission_id": "mission-one", "timestamp": 2_050, "status": "ok"})
+    )
+
+    report = build_daemon_report(config, now=2_100)
+    assert report["summary"]["total_cells"] == 1
+    assert report["summary"]["healthy"] == 1
+    assert report["summary"]["stale"] == 0
+    assert report["cells"][0]["mission_id"] == "mission-one"
+
+    heartbeat_path = write_daemon_heartbeat(config, directory=tmp_path / "heartbeats")
+    heartbeat = json.loads(heartbeat_path.read_text())
+    assert heartbeat["job"] == "lazarus_pit"
+    assert heartbeat["interval_seconds"] == 60
+
+
+def test_foundation_artifacts_exist_with_required_spec():
+    doc = PROJECT_ROOT / "docs" / "mission-cell-spec.md"
+    config = PROJECT_ROOT / "config" / "lazarus_pit.json"
+
+    assert doc.exists(), "expected mission cell spec doc"
+    assert config.exists(), "expected lazarus pit config"
+
+    content = doc.read_text()
+    for snippet in [
+        "/var/missions/<uuid>/",
+        "meta/mission.json",
+        "config/cell.json",
+        "state/heartbeat.json",
+        "logs/daemon.log",
+        "artifacts/",
+        "worktree/",
+    ]:
+        assert snippet in content

tests/test_night_shift_prediction_report.py

@@ -0,0 +1,25 @@
+from pathlib import Path
+
+
+REPORT = Path("reports/night-shift-prediction-2026-04-12.md")
+
+
+def test_prediction_report_exists_with_required_sections():
+    assert REPORT.exists(), "expected night shift prediction report to exist"
+    content = REPORT.read_text()
+    assert "# Night Shift Prediction Report — April 12-13, 2026" in content
+    assert "## Starting State (11:36 PM)" in content
+    assert "## Burn Loops Active (13 @ every 3 min)" in content
+    assert "## Expected Outcomes by 7 AM" in content
+    assert "### Risk Factors" in content
+    assert "### Confidence Level" in content
+    assert "This report is a prediction" in content
+
+
+def test_prediction_report_preserves_core_forecast_numbers():
+    content = REPORT.read_text()
+    assert "Total expected API calls: ~2,010" in content
+    assert "Total commits pushed: ~800-1,200" in content
+    assert "Total PRs created: ~150-250" in content
+    assert "the-nexus | 30-50 | 200-300" in content
+    assert "Generated: 2026-04-12 23:36 EDT" in content