diff --git a/.agents/messages/receiver-ad4e4f8f/.processed b/.agents/messages/receiver-ad4e4f8f/.processed
deleted file mode 100644
index 5884b45..0000000
--- a/.agents/messages/receiver-ad4e4f8f/.processed
+++ /dev/null
@@ -1 +0,0 @@
-699db7a9-1f51-4b47-9853-5cd79bf040e0
diff --git a/.agents/messages/receiver-bbb512c8/.processed b/.agents/messages/receiver-bbb512c8/.processed
deleted file mode 100644
index eb21e7b..0000000
--- a/.agents/messages/receiver-bbb512c8/.processed
+++ /dev/null
@@ -1 +0,0 @@
-3ca5aa61-0024-4898-b0c2-95b1a9a9e074
diff --git a/.agents/messages/receiver-c059e24d/.processed b/.agents/messages/receiver-c059e24d/.processed
deleted file mode 100644
index 083da58..0000000
--- a/.agents/messages/receiver-c059e24d/.processed
+++ /dev/null
@@ -1 +0,0 @@
-564adfe8-43f1-49d5-8758-11952a19d16a
diff --git a/.agents/messages/receiver-c5fe09dd/.processed b/.agents/messages/receiver-c5fe09dd/.processed
deleted file mode 100644
index 0501408..0000000
--- a/.agents/messages/receiver-c5fe09dd/.processed
+++ /dev/null
@@ -1 +0,0 @@
-d2d2ba16-d68f-4853-948c-e0eee65a1332
diff --git a/.agents/messages/receiver_ops-37cadd82/.processed b/.agents/messages/receiver_ops-37cadd82/.processed
deleted file mode 100644
index dedb159..0000000
--- a/.agents/messages/receiver_ops-37cadd82/.processed
+++ /dev/null
@@ -1,2 +0,0 @@
-43af8b7e-e66d-449c-b8d3-d33247092adf
-3c967026-e932-4bd8-a99a-a9d4ac22bc7e
diff --git a/.agents/messages/receiver_scale-dab9c017/.processed b/.agents/messages/receiver_scale-dab9c017/.processed
deleted file mode 100644
index 3df718e..0000000
--- a/.agents/messages/receiver_scale-dab9c017/.processed
+++ /dev/null
@@ -1,6 +0,0 @@
-da7b718b-4d18-433c-abde-a8b736f10bdd
-f7c930b9-86bd-4f6f-963f-fa7faa0e0311
-3d12c1db-5430-4254-8988-d9d585e0381a
-9a48b29a-e115-4ca3-b3bc-584d136c73cf
-70725fc6-9725-49ef-ad9c-bedeb5f83771
-7decdefc-ea08-4b71-abd5-4dccae879894
diff --git a/.agents/messages/receiver_sec-371a042e/.processed b/.agents/messages/receiver_sec-371a042e/.processed
deleted file mode 100644
index 1f0a909..0000000
--- a/.agents/messages/receiver_sec-371a042e/.processed
+++ /dev/null
@@ -1 +0,0 @@
-43866846-c215-4320-ae72-abac12462bed
diff --git a/.agents/messages/sender-ae6bf2b2/.processed b/.agents/messages/sender-ae6bf2b2/.processed
deleted file mode 100644
index 41c0c83..0000000
--- a/.agents/messages/sender-ae6bf2b2/.processed
+++ /dev/null
@@ -1 +0,0 @@
-80316bd4-4a59-4892-9f6c-4c62d0981c5c
diff --git a/.agents/messages/test-b-0231eb27/.processed b/.agents/messages/test-b-0231eb27/.processed
deleted file mode 100644
index 470b283..0000000
--- a/.agents/messages/test-b-0231eb27/.processed
+++ /dev/null
@@ -1 +0,0 @@
-c6ebd7ec-85b8-4f15-8633-1038b029cda8
diff --git a/.agents/messages/test-b-29544c66/.processed b/.agents/messages/test-b-29544c66/.processed
deleted file mode 100644
index 9e6a9e6..0000000
--- a/.agents/messages/test-b-29544c66/.processed
+++ /dev/null
@@ -1 +0,0 @@
-0a926b05-860e-4561-8c03-a2d73f19223e
diff --git a/.agents/messages/test-b-3617e505/.processed b/.agents/messages/test-b-3617e505/.processed
deleted file mode 100644
index edfbc91..0000000
--- a/.agents/messages/test-b-3617e505/.processed
+++ /dev/null
@@ -1 +0,0 @@
-b9482fd4-148d-4a0c-9d66-2ebb41137d04
diff --git a/.agents/messages/test-b-4313c9d0/.processed b/.agents/messages/test-b-4313c9d0/.processed
deleted file mode 100644
index 4674161..0000000
--- a/.agents/messages/test-b-4313c9d0/.processed
+++ /dev/null
@@ -1 +0,0 @@
-1e891feb-ded4-4aac-8800-eca456b97163
diff --git a/.agents/messages/test-b-714aedf8/.processed b/.agents/messages/test-b-714aedf8/.processed
deleted file mode 100644
index 25a4eaa..0000000
--- a/.agents/messages/test-b-714aedf8/.processed
+++ /dev/null
@@ -1 +0,0 @@
-831986f3-5b3c-47c5-97a1-b99a0aa0d645
diff --git a/.agents/messages/test-b-78219b37/.processed b/.agents/messages/test-b-78219b37/.processed
deleted file mode 100644
index d568c2e..0000000
--- a/.agents/messages/test-b-78219b37/.processed
+++ /dev/null
@@ -1 +0,0 @@
-fd02e2cc-bc3d-4b3d-9120-75ced6f5b915
diff --git a/.agents/messages/test-b-7db0f955/.processed b/.agents/messages/test-b-7db0f955/.processed
deleted file mode 100644
index 74c9228..0000000
--- a/.agents/messages/test-b-7db0f955/.processed
+++ /dev/null
@@ -1 +0,0 @@
-bb2a7664-1579-46fe-aacf-cf9cfe571f70
diff --git a/.agents/messages/test-b-863045de/.processed b/.agents/messages/test-b-863045de/.processed
deleted file mode 100644
index 4c7953b..0000000
--- a/.agents/messages/test-b-863045de/.processed
+++ /dev/null
@@ -1 +0,0 @@
-7be9c24a-11ba-461d-aca0-5dca597c0548
diff --git a/.agents/messages/test-b-8ef1b6bc/.processed b/.agents/messages/test-b-8ef1b6bc/.processed
deleted file mode 100644
index f1f2491..0000000
--- a/.agents/messages/test-b-8ef1b6bc/.processed
+++ /dev/null
@@ -1 +0,0 @@
-2b9394e3-6c0a-45df-82a8-399067b852d9
diff --git a/.agents/messages/test-b-94de765b/.processed b/.agents/messages/test-b-94de765b/.processed
deleted file mode 100644
index f39f204..0000000
--- a/.agents/messages/test-b-94de765b/.processed
+++ /dev/null
@@ -1 +0,0 @@
-7f272aca-fa15-4688-82ee-f1d923f99202
diff --git a/.agents/messages/test-b-d6ff15cb/.processed b/.agents/messages/test-b-d6ff15cb/.processed
deleted file mode 100644
index d53ab57..0000000
--- a/.agents/messages/test-b-d6ff15cb/.processed
+++ /dev/null
@@ -1 +0,0 @@
-1800528e-a0f9-4dc6-a923-01ffb398eb9e
diff --git a/.agents/messages/test-b-e36f5d0e/.processed b/.agents/messages/test-b-e36f5d0e/.processed
deleted file mode 100644
index 0a7b845..0000000
--- a/.agents/messages/test-b-e36f5d0e/.processed
+++ /dev/null
@@ -1 +0,0 @@
-dc61d968-a29b-4d88-8748-51b7a71183a4
diff --git a/.agents/messages/test-b-f99f7fd8/.processed b/.agents/messages/test-b-f99f7fd8/.processed
deleted file mode 100644
index e623133..0000000
--- a/.agents/messages/test-b-f99f7fd8/.processed
+++ /dev/null
@@ -1 +0,0 @@
-3bd250d6-cce5-4a6a-8507-d7e1ac6516b2
diff --git a/.agents/messages/test-b-fd4cc5d4/.processed b/.agents/messages/test-b-fd4cc5d4/.processed
deleted file mode 100644
index 9253b38..0000000
--- a/.agents/messages/test-b-fd4cc5d4/.processed
+++ /dev/null
@@ -1 +0,0 @@
-d3643487-c51b-4e91-8236-72843a6bffe0
diff --git a/.agents/registry/.lock b/.agents/registry/.lock
deleted file mode 100644
index e69de29..0000000
diff --git a/docs/review/REVIEW_20260104.md b/docs/review/REVIEW_20260104.md
deleted file mode 100644
index e3001b2..0000000
--- a/docs/review/REVIEW_20260104.md
+++ /dev/null
@@ -1,60 +0,0 @@
-# Review of Agent Coordination Enhancements
-**Date:** 2026-01-04
-**Author:** Gemini Agent
-
-## Overview
-This review covers the completion of the "Multi-Agent Coordination System Enhancements" Epic (`INFRASTRUCTURE-20260104-095616-HMX`). All planned sub-tasks have been implemented, verified, and documented.
-
-## Completed Tasks
-
-### 1. Concurrency Enhancements (`EUM`)
-- **Status:** Completed
-- **Changes:**
-    - Implemented `scripts/lib/concurrency.py` with `FileLock` (using `fcntl`).
-    - Added registry locking to prevent race conditions during registration and pruning.
-    - Implemented atomic "move-then-read" pattern for public message processing.
-
-### 2. Reliability Improvements (`AOR`)
-- **Status:** Completed
-- **Changes:**
-    - Added `retry_count` and exponential backoff to `send()`.
-    - Implemented Dead-Letter Queue (DLQ) for corrupt, expired, or invalid messages.
-    - Added Time-To-Live (TTL) enforcement.
-    - Added Idempotency checks using a local processed ID log.
-    - Added Delivery Receipts mechanism.
-
-### 3. Scalability Optimizations (`RZF`)
-- **Status:** Completed
-- **Changes:**
-    - Integrated GZIP compression for messages (transparent support in `io.py`).
-    - Optimized `read()` to use `os.scandir` and `heapq` for memory-efficient directory listing.
-    - Added `cleanup_archive` utility.
-    - Added `send_batch` capability.
-
-### 4. Security Hardening (`PND`)
-- **Status:** Completed
-- **Changes:**
-    - Implemented HMAC-SHA256 signature generation and verification for message integrity/auth.
-    - Added mock Encryption hooks (extensible).
-    - Implemented sender-side Rate Limiting (leaky bucket).
-    - Added strict payload size and type validation.
-
-### 5. Operational Enhancements (`EXF`)
-- **Status:** Completed
-- **Changes:**
-    - Added CLI commands: `health`, `metrics`.
-    - Implemented system health checks (disk, permissions).
-    - Added Prometheus-style metrics output.
-    - Implemented Priority Queueing (Urgent > Normal > Low).
-
-### 6. Git Policy Review (`RUD`)
-- **Status:** Completed
-- **Findings:** Current policies are standard and not overly restrictive. No changes required.
-
-## Technical Notes
-- **Dependencies:** New `concurrency.py` module added. `io.py` updated for GZIP.
-- **Compatibility:** Fully backward compatible. Old agents can read new messages (ignoring metadata), new agents handle old messages gracefully.
-- **Libraries:** No external dependencies (`cryptography`, `jwt`, etc.) were introduced; functionality relies on Python standard library.
-
-## Verification
-Dedicated test scripts were created for each feature set and verified successfully.
diff --git a/scripts/index b/scripts/index
deleted file mode 100755
index 4c59e38..0000000
--- a/scripts/index
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/bin/bash
-
-# Ensure python3 is available
-if ! command -v python3 &> /dev/null; then
-    echo "Error: python3 is required but not found."
-    exit 1
-fi
-
-# Get the directory of this script
-DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-
-# Execute the python script
-exec python3 "$DIR/index.py" "$@"
diff --git a/scripts/lib/audit.py b/scripts/lib/audit.py
deleted file mode 100644
index a301b7f..0000000
--- a/scripts/lib/audit.py
+++ /dev/null
@@ -1,61 +0,0 @@
-import os
-import json
-import datetime
-from scripts.lib import io, config
-
-def log_activity(action, args=None, agent_id=None, result="success"):
-    """
-    Appends a structured log entry to the agent audit log.
-    """
-    # Get configuration
-    # Note: repo_root calculation logic copied from other scripts
-    script_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
-    repo_root = os.getenv("TASKS_REPO_ROOT", os.path.dirname(script_dir))
-    
-    conf = config.get_config(repo_root)
-    log_path = os.path.join(repo_root, conf["agents"]["audit_log"])
-    
-    # Ensure logs directory exists
-    log_dir = os.path.dirname(log_path)
-    if not os.path.exists(log_dir):
-        os.makedirs(log_dir, exist_ok=True)
-
-    entry = {
-        "timestamp": datetime.datetime.now().isoformat(),
-        "agent_id": agent_id or os.getenv("AGENT_ID", "human-or-unknown"),
-        "action": action,
-        "args": args or {},
-        "result": result
-    }
-    
-    # Helper for JSON serialization of complex objects
-    def serialize(obj):
-        try:
-            return json.dumps(obj)
-        except (TypeError, OverflowError):
-            return str(obj)
-
-    # Append to JSONL file
-    try:
-        # Use a custom default or pre-process entry to ensure serializability
-        safe_entry = json.loads(json.dumps(entry, default=lambda o: str(o)))
-        with open(log_path, "a") as f:
-            f.write(json.dumps(safe_entry) + "\n")
-    except Exception as e:
-        print(f"Warning: Failed to write to audit log: {e}")
-
-def audit_log(action):
-    """
-    Decorator for simple function auditing.
-    """
-    def decorator(func):
-        def wrapper(*args, **kwargs):
-            try:
-                res = func(*args, **kwargs)
-                log_activity(action, {"args": list(args), "kwargs": kwargs}, result="success")
-                return res
-            except Exception as e:
-                log_activity(action, {"args": list(args), "kwargs": kwargs}, result=f"error: {str(e)}")
-                raise e
-        return wrapper
-    return decorator
diff --git a/scripts/lib/concurrency.py b/scripts/lib/concurrency.py
deleted file mode 100644
index 28b55d4..0000000
--- a/scripts/lib/concurrency.py
+++ /dev/null
@@ -1,55 +0,0 @@
-import os
-import time
-import fcntl
-import errno
-from contextlib import contextmanager
-
-class FileLockException(Exception):
-    pass
-
-class FileLock:
-    """
-    A file locking mechanism using fcntl.flock for POSIX systems.
-    """
-    def __init__(self, lock_file, timeout=5, delay=0.1):
-        self.lock_file = lock_file
-        self.timeout = timeout
-        self.delay = delay
-        self.fd = None
-
-    def acquire(self):
-        start_time = time.time()
-        # Ensure directory exists
-        os.makedirs(os.path.dirname(os.path.abspath(self.lock_file)), exist_ok=True)
-        
-        self.fd = open(self.lock_file, 'w')
-        
-        while True:
-            try:
-                # LOCK_EX: Exclusive lock
-                # LOCK_NB: Non-blocking
-                fcntl.flock(self.fd, fcntl.LOCK_EX | fcntl.LOCK_NB)
-                return
-            except (IOError, OSError) as e:
-                if e.errno != errno.EAGAIN:
-                    raise
-                if (time.time() - start_time) >= self.timeout:
-                    self.fd.close()
-                    raise FileLockException(f"Could not acquire lock on {self.lock_file} within {self.timeout}s")
-                time.sleep(self.delay)
-
-    def release(self):
-        if self.fd:
-            try:
-                fcntl.flock(self.fd, fcntl.LOCK_UN)
-            except:
-                pass
-            self.fd.close()
-            self.fd = None
-
-    def __enter__(self):
-        self.acquire()
-        return self
-
-    def __exit__(self, exc_type, exc_val, exc_tb):
-        self.release()
diff --git a/scripts/lib/io.py b/scripts/lib/io.py
index ed99784..649cd97 100644
--- a/scripts/lib/io.py
+++ b/scripts/lib/io.py
@@ -2,7 +2,6 @@
 import tempfile
 import json
 import time
-import gzip
 
 def write_atomic(filepath, content, mode='w', encoding='utf-8'):
     """
@@ -33,62 +32,28 @@ def write_atomic(filepath, content, mode='w', encoding='utf-8'):
             os.remove(tmp_path)
         raise e
 
-def write_atomic_gzip(filepath, content_str, encoding='utf-8'):
-    """Atomic write for GZIP files."""
-    directory = os.path.dirname(os.path.abspath(filepath))
-    if not os.path.exists(directory):
-        os.makedirs(directory, exist_ok=True)
-    
-    fd, tmp_path = tempfile.mkstemp(dir=directory, suffix='.gz')
-    os.close(fd) 
-    
-    try:
-        with gzip.open(tmp_path, 'wt', encoding=encoding) as f:
-            f.write(content_str)
-            f.flush()
-            # Try to fsync underlying file
-            if hasattr(f, 'fileobj') and f.fileobj:
-                f.fileobj.flush()
-                os.fsync(f.fileobj.fileno())
-        
-        os.replace(tmp_path, filepath)
-    except Exception as e:
-        if os.path.exists(tmp_path):
-            os.remove(tmp_path)
-        raise e
-
 def read_text(filepath, encoding='utf-8', retries=3, delay=0.1):
     """
     Reads text from a file with simple retry logic for transient errors.
-    Supports .gz files transparently.
     """
     if not os.path.exists(filepath):
         raise FileNotFoundError(f"File not found: {filepath}")
 
-    is_gzip = filepath.endswith('.gz')
-
     for attempt in range(retries):
         try:
-            if is_gzip:
-                with gzip.open(filepath, 'rt', encoding=encoding) as f:
-                    return f.read()
-            else:
-                with open(filepath, 'r', encoding=encoding) as f:
-                    return f.read()
+            with open(filepath, 'r', encoding=encoding) as f:
+                return f.read()
         except OSError:
             if attempt == retries - 1:
                 raise
             time.sleep(delay)
 
 def write_json(filepath, data, indent=2):
-    """Atomic write for JSON (supports .gz)."""
+    """Atomic write for JSON."""
     content = json.dumps(data, indent=indent, sort_keys=True)
-    if filepath.endswith('.gz'):
-        write_atomic_gzip(filepath, content)
-    else:
-        write_atomic(filepath, content + "\n")
+    write_atomic(filepath, content + "\n")
 
 def read_json(filepath):
-    """Read JSON from file (supports .gz)."""
+    """Read JSON from file."""
     content = read_text(filepath)
-    return json.loads(content)
\ No newline at end of file
+    return json.loads(content)
diff --git a/templates/task.md b/templates/task.md
deleted file mode 100644
index 58a9703..0000000
--- a/templates/task.md
+++ /dev/null
@@ -1,23 +0,0 @@
-# Task: {title}
-
-## Task Information
-- **Task ID**: {task_id}
-- **Status**: pending
-- **Priority**: medium
-- **Phase**: 1
-- **Estimated Effort**: 1 day
-- **Dependencies**: None
-
-## Task Details
-
-### Description
-{description}
-
-### Acceptance Criteria
-- [ ] Criterion 1
-- [ ] Criterion 2
-
----
-
-*Created: {date}*
-*Status: pending*