diff --git a/packages/arcade_lobby/seed/scripts/tests/arcade.cases.json b/packages/arcade_lobby/seed/scripts/tests/arcade.cases.json
new file mode 100644
index 000000000..cd1495508
--- /dev/null
+++ b/packages/arcade_lobby/seed/scripts/tests/arcade.cases.json
@@ -0,0 +1,55 @@
+{
+  "matchmaking": {
+    "assign_bucket": [
+      { "party_size": 1, "expected": "solo", "desc": "Solo player gets solo bucket" },
+      { "party_size": 2, "expected": "duo", "desc": "Duo gets duo bucket" },
+      { "party_size": 3, "expected": "solo", "desc": "Trio gets solo bucket (not 4)" },
+      { "party_size": 4, "expected": "squad", "desc": "Full squad gets squad bucket" },
+      { "party_size": 5, "expected": "squad", "desc": "5+ players get squad bucket" },
+      { "party_size": null, "expected": "solo", "desc": "Nil size defaults to solo" }
+    ]
+  },
+  "permissions": {
+    "can_create_tournament": [
+      { "role": "public", "expected": false, "desc": "Public users cannot create tournaments" },
+      { "role": "admin", "expected": true, "desc": "Admins can create tournaments" },
+      { "role": "god", "expected": true, "desc": "God users can create tournaments" },
+      { "role": "supergod", "expected": true, "desc": "Supergod users can create tournaments" },
+      { "role": null, "expected": false, "desc": "Nil role defaults to public" }
+    ]
+  },
+  "queue_metrics": {
+    "summarize": [
+      {
+        "queues": [],
+        "expected_players": 0,
+        "expected_wait": 0,
+        "desc": "Empty queue list"
+      },
+      {
+        "queues": [{"players": 10, "waitSeconds": 30}],
+        "expected_players": 10,
+        "expected_wait": 30,
+        "desc": "Single queue"
+      },
+      {
+        "queues": [
+          {"players": 5, "waitSeconds": 10},
+          {"players": 15, "waitSeconds": 60}
+        ],
+        "expected_players": 20,
+        "expected_wait": 60,
+        "desc": "Multiple queues aggregate"
+      },
+      {
+        "queues": [
+          {"players": null, "waitSeconds": null},
+          {"players": 5, "waitSeconds": 30}
+        ],
+        "expected_players": 5,
+        "expected_wait": 30,
+        "desc": "Handles nil values"
+      }
+    ]
+  }
+}
diff --git a/packages/forum_forge/seed/scripts/tests/permissions.test.lua b/packages/forum_forge/seed/scripts/tests/permissions.test.lua
new file mode 100644
index 000000000..4e4f40de3
--- /dev/null
+++ b/packages/forum_forge/seed/scripts/tests/permissions.test.lua
@@ -0,0 +1,87 @@
+-- Forum Forge permissions and functionality tests
+-- Uses lua_test framework with parameterized test cases
+
+describe("Forum Permissions", function()
+  local cases = load_cases("permissions.cases.json")
+  
+  describe("can_post", function()
+    local can_post = require("can_post")
+    
+    it_each(cases.can_post, "$desc", function(tc)
+      local user = { role = tc.role }
+      local result = can_post(user)
+      expect(result).toBe(tc.expected)
+    end)
+  end)
+  
+  describe("can_moderate", function()
+    local can_moderate = require("can_moderate")
+    
+    it_each(cases.can_moderate, "$desc", function(tc)
+      local user = { role = tc.role }
+      local result = can_moderate(user)
+      expect(result).toBe(tc.expected)
+    end)
+  end)
+end)
+
+describe("Content Moderation", function()
+  local cases = load_cases("permissions.cases.json")
+  
+  describe("flag_post", function()
+    local flag_post = require("flag_post")
+    
+    it_each(cases.flag_post, "$desc", function(tc)
+      local post = { content = tc.content }
+      local result = flag_post(post)
+      expect(result.flagged).toBe(tc.expected_flagged)
+      if tc.expected_reasons then
+        expect(#result.reasons).toBe(tc.expected_reasons)
+      end
+    end)
+    
+    it("flags posts over 5000 characters", function()
+      local long_content = string.rep("a", 5001)
+      local post = { content = long_content }
+      local result = flag_post(post)
+      expect(result.flagged).toBe(true)
+      expect(#result.reasons).toBe(1)
+      expect(result.reasons[1]).toContain("5000 characters")
+    end)
+  end)
+end)
+
+describe("Thread Ranking", function()
+  local cases = load_cases("permissions.cases.json")
+  
+  describe("rank_thread", function()
+    local rank_thread = require("rank_thread")
+    
+    it_each(cases.rank_thread, "$desc", function(tc)
+      local thread = {
+        replyCount = tc.replyCount,
+        likeCount = tc.likeCount,
+        lastReplyAt = tc.lastReplyAt
+      }
+      local score = rank_thread(thread)
+      expect(score >= tc.expected_min).toBe(true)
+    end)
+    
+    it("calculates score correctly: (replies * 2) + likes + (recency / 1000000)", function()
+      local thread = {
+        replyCount = 10,
+        likeCount = 5,
+        lastReplyAt = 2000000
+      }
+      local score = rank_thread(thread)
+      -- 10 * 2 + 5 + 2 = 27
+      expect(score).toBe(27)
+    end)
+    
+    it("handles missing fields with defaults", function()
+      local thread = {}
+      local score = rank_thread(thread)
+      expect(score).toBe(0)
+    end)
+  end)
+end)
diff --git a/packages/irc_webchat/seed/scripts/tests/chat.cases.json b/packages/irc_webchat/seed/scripts/tests/chat.cases.json
new file mode 100644
index 000000000..e5efc0e98
--- /dev/null
+++ b/packages/irc_webchat/seed/scripts/tests/chat.cases.json
@@ -0,0 +1,40 @@
+{
+  "handle_command": {
+    "help_command": [
+      { "command": "/help", "expected_contains": "Available commands", "desc": "Help shows commands" },
+      { "command": "/HELP", "expected_contains": "Available commands", "desc": "Help is case insensitive" }
+    ],
+    "users_command": [
+      { "command": "/users", "users": ["Alice", "Bob"], "expected_contains": "Alice, Bob", "desc": "Lists online users" },
+      { "command": "/users", "users": [], "expected_contains": "Online users (0)", "desc": "Empty user list" }
+    ],
+    "clear_command": [
+      { "command": "/clear", "expected_type": "command", "expected_message": "CLEAR_MESSAGES", "desc": "Clear returns command type" }
+    ],
+    "me_command": [
+      { "command": "/me waves", "username": "TestUser", "expected_contains": "waves", "desc": "Me action with text" },
+      { "command": "/me", "expected_contains": "Usage:", "desc": "Me without action shows usage" }
+    ],
+    "unknown_command": [
+      { "command": "/invalid", "expected_contains": "Unknown command", "desc": "Unknown command error" },
+      { "command": "/test123", "expected_contains": "Type /help", "desc": "Suggests help for unknown" }
+    ]
+  },
+  "format_time": [
+    { "timestamp": 0, "expected_format": "HH:MM", "desc": "Epoch timestamp" },
+    { "timestamp": 1609459200000, "expected_contains": ":", "desc": "Valid timestamp formats" },
+    { "timestamp": 1609502400000, "expected_contains": ":", "desc": "Afternoon timestamp" }
+  ],
+  "send_message": [
+    { "channelId": "ch1", "username": "Alice", "userId": "u1", "message": "Hello", "desc": "Basic message creation" },
+    { "channelId": "general", "username": "Bot", "userId": "bot1", "message": "System alert", "desc": "System message" }
+  ],
+  "user_events": {
+    "join": [
+      { "username": "Alice", "channelId": "ch1", "expected_type": "join", "desc": "User join event" }
+    ],
+    "leave": [
+      { "username": "Bob", "channelId": "ch1", "expected_type": "leave", "desc": "User leave event" }
+    ]
+  }
+}
diff --git a/packages/irc_webchat/seed/scripts/tests/chat.test.lua b/packages/irc_webchat/seed/scripts/tests/chat.test.lua
new file mode 100644
index 000000000..a5665a4b0
--- /dev/null
+++ b/packages/irc_webchat/seed/scripts/tests/chat.test.lua
@@ -0,0 +1,103 @@
+-- IRC Webchat functionality tests
+-- Uses lua_test framework with parameterized test cases
+
+describe("IRC Commands", function()
+  local cases = load_cases("chat.cases.json")
+  local handle_command = require("handle_command")
+  
+  describe("help command", function()
+    it_each(cases.handle_command.help_command, "$desc", function(tc)
+      local result = handle_command(tc.command, "ch1", "TestUser", {})
+      expect(result.message).toContain(tc.expected_contains)
+    end)
+  end)
+  
+  describe("users command", function()
+    it_each(cases.handle_command.users_command, "$desc", function(tc)
+      local result = handle_command(tc.command, "ch1", "TestUser", tc.users)
+      expect(result.message).toContain(tc.expected_contains)
+    end)
+  end)
+  
+  describe("clear command", function()
+    it_each(cases.handle_command.clear_command, "$desc", function(tc)
+      local result = handle_command(tc.command, "ch1", "TestUser", {})
+      expect(result.type).toBe(tc.expected_type)
+      expect(result.message).toBe(tc.expected_message)
+    end)
+  end)
+  
+  describe("me command", function()
+    it_each(cases.handle_command.me_command, "$desc", function(tc)
+      local username = tc.username or "TestUser"
+      local result = handle_command(tc.command, "ch1", username, {})
+      expect(result.message).toContain(tc.expected_contains)
+    end)
+  end)
+  
+  describe("unknown commands", function()
+    it_each(cases.handle_command.unknown_command, "$desc", function(tc)
+      local result = handle_command(tc.command, "ch1", "TestUser", {})
+      expect(result.message).toContain(tc.expected_contains)
+    end)
+  end)
+end)
+
+describe("Time Formatting", function()
+  local format_time = require("format_time")
+  
+  it("formats time with AM/PM", function()
+    local result = format_time(1609459200000) -- 12:00 AM UTC
+    expect(result).toContain(":")
+    expect(result:match("[AP]M")).toBeTruthy()
+  end)
+  
+  it("handles midnight correctly", function()
+    -- Midnight should show as 12:XX AM
+    local midnight = 1609459200000 -- Jan 1, 2021 00:00 UTC
+    local result = format_time(midnight)
+    expect(result).toContain("12:")
+  end)
+end)
+
+describe("Message Creation", function()
+  local cases = load_cases("chat.cases.json")
+  local send_message = require("send_message")
+  
+  it_each(cases.send_message, "$desc", function(tc)
+    local result = send_message(tc.channelId, tc.username, tc.userId, tc.message)
+    expect(result.channelId).toBe(tc.channelId)
+    expect(result.username).toBe(tc.username)
+    expect(result.userId).toBe(tc.userId)
+    expect(result.message).toBe(tc.message)
+    expect(result.type).toBe("message")
+    expect(result.id).toBeTruthy()
+    expect(result.timestamp).toBeTruthy()
+  end)
+end)
+
+describe("User Events", function()
+  local cases = load_cases("chat.cases.json")
+  
+  describe("user join", function()
+    local user_join = require("user_join")
+    
+    it_each(cases.user_events.join, "$desc", function(tc)
+      local result = user_join(tc.username, tc.channelId)
+      expect(result.type).toBe(tc.expected_type)
+      expect(result.username).toBe(tc.username)
+      expect(result.channelId).toBe(tc.channelId)
+    end)
+  end)
+  
+  describe("user leave", function()
+    local user_leave = require("user_leave")
+    
+    it_each(cases.user_events.leave, "$desc", function(tc)
+      local result = user_leave(tc.username, tc.channelId)
+      expect(result.type).toBe(tc.expected_type)
+      expect(result.username).toBe(tc.username)
+      expect(result.channelId).toBe(tc.channelId)
+    end)
+  end)
+end)