diff --git a/backend/src/data/GuildArchives.ts b/backend/src/data/GuildArchives.ts
index 2056ed8d..4fae975b 100644
--- a/backend/src/data/GuildArchives.ts
+++ b/backend/src/data/GuildArchives.ts
@@ -109,9 +109,12 @@ export class GuildArchives extends BaseGuildRepository {
       expiresAt = moment.utc().add(DEFAULT_EXPIRY_DAYS, "days");
     }
 
-    const headerStr = await renderTemplate(MESSAGE_ARCHIVE_HEADER_FORMAT, {
-      guild: guildToTemplateSafeGuild(guild),
-    });
+    const headerStr = await renderTemplate(
+      MESSAGE_ARCHIVE_HEADER_FORMAT,
+      new TemplateSafeValueContainer({
+        guild: guildToTemplateSafeGuild(guild),
+      }),
+    );
     const msgLines = await this.renderLinesFromSavedMessages(savedMessages, guild);
     const messagesStr = msgLines.join("\n");
 
diff --git a/backend/src/plugins/Automod/actions/reply.ts b/backend/src/plugins/Automod/actions/reply.ts
index 69fcf937..c3dcded6 100644
--- a/backend/src/plugins/Automod/actions/reply.ts
+++ b/backend/src/plugins/Automod/actions/reply.ts
@@ -2,7 +2,7 @@ import { MessageOptions, Permissions, Snowflake, TextChannel, User } from "disco
 import * as t from "io-ts";
 import { userToTemplateSafeUser } from "../../../utils/templateSafeObjects";
 import { LogType } from "../../../data/LogType";
-import { renderTemplate } from "../../../templateFormatter";
+import { renderTemplate, TemplateSafeValueContainer } from "../../../templateFormatter";
 import {
   convertDelayStringToMS,
   noop,
@@ -48,9 +48,12 @@ export const ReplyAction = automodAction({
       const user = users[0];
 
       const renderReplyText = async str =>
-        renderTemplate(str, {
-          user: userToTemplateSafeUser(user),
-        });
+        renderTemplate(
+          str,
+          new TemplateSafeValueContainer({
+            user: userToTemplateSafeUser(user),
+          }),
+        );
       const formatted =
         typeof actionConfig === "string"
           ? await renderReplyText(actionConfig)
diff --git a/backend/src/plugins/CustomEvents/CustomEventsPlugin.ts b/backend/src/plugins/CustomEvents/CustomEventsPlugin.ts
index c1c183eb..009bf5a6 100644
--- a/backend/src/plugins/CustomEvents/CustomEventsPlugin.ts
+++ b/backend/src/plugins/CustomEvents/CustomEventsPlugin.ts
@@ -1,9 +1,18 @@
 import { parseSignature, typedGuildCommand } from "knub";
 import { commandTypes } from "../../commandTypes";
-import { stripObjectToScalars } from "../../utils";
+import { stripObjectToScalars, UnknownUser } from "../../utils";
 import { zeppelinGuildPlugin } from "../ZeppelinPluginBlueprint";
 import { runEvent } from "./functions/runEvent";
 import { ConfigSchema, CustomEventsPluginType } from "./types";
+import { createTypedTemplateSafeValueContainer, TemplateSafeValueContainer } from "../../templateFormatter";
+import { Channel, GuildChannel, GuildMember, ThreadChannel, User } from "discord.js";
+import {
+  channelToTemplateSafeChannel,
+  memberToTemplateSafeMember,
+  messageToTemplateSafeMessage,
+  userToTemplateSafeUser,
+} from "../../utils/templateSafeObjects";
+import { isScalar } from "../../utils/isScalar";
 
 const defaultOptions = {
   config: {
@@ -28,8 +37,25 @@ export const CustomEventsPlugin = zeppelinGuildPlugin<CustomEventsPluginType>()(
           permission: `events.${key}.trigger.can_use`,
           signature,
           run({ message, args }) {
-            const strippedMsg = stripObjectToScalars(message, ["channel", "author"]);
-            runEvent(pluginData, event, { msg: message, args }, { args, msg: strippedMsg });
+            const safeArgs = new TemplateSafeValueContainer();
+            for (const [argKey, argValue] of Object.entries(args as Record<string, unknown>)) {
+              if (argValue instanceof User || argValue instanceof UnknownUser) {
+                safeArgs[argKey] = userToTemplateSafeUser(argValue);
+              } else if (argValue instanceof GuildMember) {
+                safeArgs[argKey] = memberToTemplateSafeMember(argValue);
+              } else if (argValue instanceof GuildChannel || argValue instanceof ThreadChannel) {
+                safeArgs[argKey] = channelToTemplateSafeChannel(argValue);
+              } else if (isScalar(argValue)) {
+                safeArgs[argKey] = argValue;
+              }
+            }
+
+            const values = createTypedTemplateSafeValueContainer({
+              ...args,
+              msg: messageToTemplateSafeMessage(message),
+            });
+
+            runEvent(pluginData, event, { msg: message, args }, values);
           },
         });
         pluginData.commands.add(eventCommand);
diff --git a/backend/src/plugins/CustomEvents/actions/addRoleAction.ts b/backend/src/plugins/CustomEvents/actions/addRoleAction.ts
index 6621763d..4fb21bf1 100644
--- a/backend/src/plugins/CustomEvents/actions/addRoleAction.ts
+++ b/backend/src/plugins/CustomEvents/actions/addRoleAction.ts
@@ -2,7 +2,7 @@ import { Snowflake } from "discord.js";
 import * as t from "io-ts";
 import { GuildPluginData } from "knub";
 import { canActOn } from "../../../pluginUtils";
-import { renderTemplate } from "../../../templateFormatter";
+import { renderTemplate, TemplateSafeValueContainer } from "../../../templateFormatter";
 import { resolveMember } from "../../../utils";
 import { ActionError } from "../ActionError";
 import { CustomEventsPluginType, TCustomEvent } from "../types";
@@ -17,7 +17,7 @@ export type TAddRoleAction = t.TypeOf<typeof AddRoleAction>;
 export async function addRoleAction(
   pluginData: GuildPluginData<CustomEventsPluginType>,
   action: TAddRoleAction,
-  values: any,
+  values: TemplateSafeValueContainer,
   event: TCustomEvent,
   eventData: any,
 ) {
diff --git a/backend/src/plugins/CustomEvents/actions/createCaseAction.ts b/backend/src/plugins/CustomEvents/actions/createCaseAction.ts
index e9e4fac1..c3203389 100644
--- a/backend/src/plugins/CustomEvents/actions/createCaseAction.ts
+++ b/backend/src/plugins/CustomEvents/actions/createCaseAction.ts
@@ -1,7 +1,7 @@
 import * as t from "io-ts";
 import { GuildPluginData } from "knub";
 import { CaseTypes } from "../../../data/CaseTypes";
-import { renderTemplate } from "../../../templateFormatter";
+import { renderTemplate, TemplateSafeValueContainer } from "../../../templateFormatter";
 import { CasesPlugin } from "../../Cases/CasesPlugin";
 import { ActionError } from "../ActionError";
 import { CustomEventsPluginType, TCustomEvent } from "../types";
@@ -18,7 +18,7 @@ export type TCreateCaseAction = t.TypeOf<typeof CreateCaseAction>;
 export async function createCaseAction(
   pluginData: GuildPluginData<CustomEventsPluginType>,
   action: TCreateCaseAction,
-  values: any,
+  values: TemplateSafeValueContainer,
   event: TCustomEvent,
   eventData: any,
 ) {
diff --git a/backend/src/plugins/CustomEvents/actions/makeRoleMentionableAction.ts b/backend/src/plugins/CustomEvents/actions/makeRoleMentionableAction.ts
index 11974a7a..73994d2e 100644
--- a/backend/src/plugins/CustomEvents/actions/makeRoleMentionableAction.ts
+++ b/backend/src/plugins/CustomEvents/actions/makeRoleMentionableAction.ts
@@ -4,6 +4,7 @@ import { GuildPluginData } from "knub";
 import { convertDelayStringToMS, noop, tDelayString } from "../../../utils";
 import { ActionError } from "../ActionError";
 import { CustomEventsPluginType, TCustomEvent } from "../types";
+import { TemplateSafeValueContainer } from "../../../templateFormatter";
 
 export const MakeRoleMentionableAction = t.type({
   type: t.literal("make_role_mentionable"),
@@ -15,7 +16,7 @@ export type TMakeRoleMentionableAction = t.TypeOf<typeof MakeRoleMentionableActi
 export async function makeRoleMentionableAction(
   pluginData: GuildPluginData<CustomEventsPluginType>,
   action: TMakeRoleMentionableAction,
-  values: any,
+  values: TemplateSafeValueContainer,
   event: TCustomEvent,
   eventData: any,
 ) {
diff --git a/backend/src/plugins/CustomEvents/actions/makeRoleUnmentionableAction.ts b/backend/src/plugins/CustomEvents/actions/makeRoleUnmentionableAction.ts
index 505cb3f7..1975b1c1 100644
--- a/backend/src/plugins/CustomEvents/actions/makeRoleUnmentionableAction.ts
+++ b/backend/src/plugins/CustomEvents/actions/makeRoleUnmentionableAction.ts
@@ -3,6 +3,7 @@ import * as t from "io-ts";
 import { GuildPluginData } from "knub";
 import { ActionError } from "../ActionError";
 import { CustomEventsPluginType, TCustomEvent } from "../types";
+import { TemplateSafeValueContainer } from "../../../templateFormatter";
 
 export const MakeRoleUnmentionableAction = t.type({
   type: t.literal("make_role_unmentionable"),
@@ -13,7 +14,7 @@ export type TMakeRoleUnmentionableAction = t.TypeOf<typeof MakeRoleUnmentionable
 export async function makeRoleUnmentionableAction(
   pluginData: GuildPluginData<CustomEventsPluginType>,
   action: TMakeRoleUnmentionableAction,
-  values: any,
+  values: TemplateSafeValueContainer,
   event: TCustomEvent,
   eventData: any,
 ) {
diff --git a/backend/src/plugins/CustomEvents/actions/messageAction.ts b/backend/src/plugins/CustomEvents/actions/messageAction.ts
index 90630f1f..3c4bba46 100644
--- a/backend/src/plugins/CustomEvents/actions/messageAction.ts
+++ b/backend/src/plugins/CustomEvents/actions/messageAction.ts
@@ -1,7 +1,7 @@
 import { Snowflake, TextChannel } from "discord.js";
 import * as t from "io-ts";
 import { GuildPluginData } from "knub";
-import { renderTemplate } from "../../../templateFormatter";
+import { renderTemplate, TemplateSafeValueContainer } from "../../../templateFormatter";
 import { ActionError } from "../ActionError";
 import { CustomEventsPluginType } from "../types";
 
@@ -15,7 +15,7 @@ export type TMessageAction = t.TypeOf<typeof MessageAction>;
 export async function messageAction(
   pluginData: GuildPluginData<CustomEventsPluginType>,
   action: TMessageAction,
-  values: any,
+  values: TemplateSafeValueContainer,
 ) {
   const targetChannelId = await renderTemplate(action.channel, values, false);
   const targetChannel = pluginData.guild.channels.cache.get(targetChannelId as Snowflake);
diff --git a/backend/src/plugins/CustomEvents/actions/moveToVoiceChannelAction.ts b/backend/src/plugins/CustomEvents/actions/moveToVoiceChannelAction.ts
index 08507bac..73c6725c 100644
--- a/backend/src/plugins/CustomEvents/actions/moveToVoiceChannelAction.ts
+++ b/backend/src/plugins/CustomEvents/actions/moveToVoiceChannelAction.ts
@@ -2,7 +2,7 @@ import { Snowflake, VoiceChannel } from "discord.js";
 import * as t from "io-ts";
 import { GuildPluginData } from "knub";
 import { canActOn } from "../../../pluginUtils";
-import { renderTemplate } from "../../../templateFormatter";
+import { renderTemplate, TemplateSafeValueContainer } from "../../../templateFormatter";
 import { resolveMember } from "../../../utils";
 import { ActionError } from "../ActionError";
 import { CustomEventsPluginType, TCustomEvent } from "../types";
@@ -17,7 +17,7 @@ export type TMoveToVoiceChannelAction = t.TypeOf<typeof MoveToVoiceChannelAction
 export async function moveToVoiceChannelAction(
   pluginData: GuildPluginData<CustomEventsPluginType>,
   action: TMoveToVoiceChannelAction,
-  values: any,
+  values: TemplateSafeValueContainer,
   event: TCustomEvent,
   eventData: any,
 ) {
diff --git a/backend/src/plugins/CustomEvents/actions/setChannelPermissionOverrides.ts b/backend/src/plugins/CustomEvents/actions/setChannelPermissionOverrides.ts
index 80acd61c..31d60ed5 100644
--- a/backend/src/plugins/CustomEvents/actions/setChannelPermissionOverrides.ts
+++ b/backend/src/plugins/CustomEvents/actions/setChannelPermissionOverrides.ts
@@ -3,6 +3,7 @@ import * as t from "io-ts";
 import { GuildPluginData } from "knub";
 import { ActionError } from "../ActionError";
 import { CustomEventsPluginType, TCustomEvent } from "../types";
+import { TemplateSafeValueContainer } from "../../../templateFormatter";
 
 export const SetChannelPermissionOverridesAction = t.type({
   type: t.literal("set_channel_permission_overrides"),
@@ -21,7 +22,7 @@ export type TSetChannelPermissionOverridesAction = t.TypeOf<typeof SetChannelPer
 export async function setChannelPermissionOverridesAction(
   pluginData: GuildPluginData<CustomEventsPluginType>,
   action: TSetChannelPermissionOverridesAction,
-  values: any,
+  values: TemplateSafeValueContainer,
   event: TCustomEvent,
   eventData: any,
 ) {
diff --git a/backend/src/plugins/CustomEvents/functions/runEvent.ts b/backend/src/plugins/CustomEvents/functions/runEvent.ts
index 1322d41b..404774fd 100644
--- a/backend/src/plugins/CustomEvents/functions/runEvent.ts
+++ b/backend/src/plugins/CustomEvents/functions/runEvent.ts
@@ -10,12 +10,13 @@ import { messageAction } from "../actions/messageAction";
 import { moveToVoiceChannelAction } from "../actions/moveToVoiceChannelAction";
 import { setChannelPermissionOverridesAction } from "../actions/setChannelPermissionOverrides";
 import { CustomEventsPluginType, TCustomEvent } from "../types";
+import { TemplateSafeValueContainer } from "../../../templateFormatter";
 
 export async function runEvent(
   pluginData: GuildPluginData<CustomEventsPluginType>,
   event: TCustomEvent,
   eventData: any,
-  values: any,
+  values: TemplateSafeValueContainer,
 ) {
   try {
     for (const action of event.actions) {
diff --git a/backend/src/plugins/Logs/LogsPlugin.ts b/backend/src/plugins/Logs/LogsPlugin.ts
index 7fe0ea6c..03423404 100644
--- a/backend/src/plugins/Logs/LogsPlugin.ts
+++ b/backend/src/plugins/Logs/LogsPlugin.ts
@@ -36,7 +36,11 @@ import { onMessageDelete } from "./util/onMessageDelete";
 import { onMessageDeleteBulk } from "./util/onMessageDeleteBulk";
 import { onMessageUpdate } from "./util/onMessageUpdate";
 import { Util } from "discord.js";
-import { TemplateSafeValueContainer, TypedTemplateSafeValueContainer } from "../../templateFormatter";
+import {
+  createTypedTemplateSafeValueContainer,
+  TemplateSafeValueContainer,
+  TypedTemplateSafeValueContainer,
+} from "../../templateFormatter";
 import { mapToPublicFn } from "../../pluginUtils";
 
 import { logAutomodAction } from "./logFunctions/logAutomodAction";
@@ -284,15 +288,19 @@ export const LogsPlugin = zeppelinGuildPlugin<LogsPluginType>()({
 
     state.regexRunnerRepeatedTimeoutListener = (regexSource, timeoutMs, failedTimes) => {
       logger.warn(`Disabled heavy regex temporarily: ${regexSource}`);
-      log(pluginData, LogType.BOT_ALERT, {
-        body:
-          `
+      log(
+        pluginData,
+        LogType.BOT_ALERT,
+        createTypedTemplateSafeValueContainer({
+          body:
+            `
             The following regex has taken longer than ${timeoutMs}ms for ${failedTimes} times and has been temporarily disabled:
           `.trim() +
-          "\n```" +
-          Util.escapeCodeBlock(regexSource) +
-          "```",
-      });
+            "\n```" +
+            Util.escapeCodeBlock(regexSource) +
+            "```",
+        }),
+      );
     };
     state.regexRunner.on("repeatedTimeout", state.regexRunnerRepeatedTimeoutListener);
   },
diff --git a/backend/src/plugins/Logs/logFunctions/logMemberMuteExpired.ts b/backend/src/plugins/Logs/logFunctions/logMemberMuteExpired.ts
index be203de7..1a969120 100644
--- a/backend/src/plugins/Logs/logFunctions/logMemberMuteExpired.ts
+++ b/backend/src/plugins/Logs/logFunctions/logMemberMuteExpired.ts
@@ -19,7 +19,10 @@ export function logMemberMuteExpired(pluginData: GuildPluginData<LogsPluginType>
   const member =
     data.member instanceof GuildMember
       ? memberToTemplateSafeMember(data.member)
-      : new TemplateSafeUnknownMember({ ...data.member, user: new TemplateSafeUnknownUser({ ...data.member }) });
+      : new TemplateSafeUnknownMember({
+          ...data.member,
+          user: new TemplateSafeUnknownUser({ ...data.member }),
+        });
 
   const roles = data.member instanceof GuildMember ? Array.from(data.member.roles.cache.keys()) : [];
 
diff --git a/backend/src/plugins/ModActions/functions/banUserId.ts b/backend/src/plugins/ModActions/functions/banUserId.ts
index e9275fc2..0fc69371 100644
--- a/backend/src/plugins/ModActions/functions/banUserId.ts
+++ b/backend/src/plugins/ModActions/functions/banUserId.ts
@@ -5,7 +5,7 @@ import { userToTemplateSafeUser } from "../../../utils/templateSafeObjects";
 import { CaseTypes } from "../../../data/CaseTypes";
 import { LogType } from "../../../data/LogType";
 import { logger } from "../../../logger";
-import { renderTemplate } from "../../../templateFormatter";
+import { renderTemplate, TemplateSafeValueContainer } from "../../../templateFormatter";
 import {
   createUserNotificationError,
   notifyUser,
@@ -48,24 +48,30 @@ export async function banUserId(
 
     if (contactMethods.length) {
       if (!banTime && config.ban_message) {
-        const banMessage = await renderTemplate(config.ban_message, {
-          guildName: pluginData.guild.name,
-          reason,
-          moderator: banOptions.caseArgs?.modId
-            ? stripObjectToScalars(await resolveUser(pluginData.client, banOptions.caseArgs.modId))
-            : {},
-        });
+        const banMessage = await renderTemplate(
+          config.ban_message,
+          new TemplateSafeValueContainer({
+            guildName: pluginData.guild.name,
+            reason,
+            moderator: banOptions.caseArgs?.modId
+              ? userToTemplateSafeUser(await resolveUser(pluginData.client, banOptions.caseArgs.modId))
+              : null,
+          }),
+        );
 
         notifyResult = await notifyUser(user, banMessage, contactMethods);
       } else if (banTime && config.tempban_message) {
-        const banMessage = await renderTemplate(config.tempban_message, {
-          guildName: pluginData.guild.name,
-          reason,
-          moderator: banOptions.caseArgs?.modId
-            ? stripObjectToScalars(await resolveUser(pluginData.client, banOptions.caseArgs.modId))
-            : {},
-          banTime: humanizeDuration(banTime),
-        });
+        const banMessage = await renderTemplate(
+          config.tempban_message,
+          new TemplateSafeValueContainer({
+            guildName: pluginData.guild.name,
+            reason,
+            moderator: banOptions.caseArgs?.modId
+              ? userToTemplateSafeUser(await resolveUser(pluginData.client, banOptions.caseArgs.modId))
+              : null,
+            banTime: humanizeDuration(banTime),
+          }),
+        );
 
         notifyResult = await notifyUser(user, banMessage, contactMethods);
       } else {
diff --git a/backend/src/plugins/ModActions/functions/kickMember.ts b/backend/src/plugins/ModActions/functions/kickMember.ts
index d74cd727..d70722a1 100644
--- a/backend/src/plugins/ModActions/functions/kickMember.ts
+++ b/backend/src/plugins/ModActions/functions/kickMember.ts
@@ -3,7 +3,7 @@ import { GuildPluginData } from "knub";
 import { userToTemplateSafeUser } from "../../../utils/templateSafeObjects";
 import { CaseTypes } from "../../../data/CaseTypes";
 import { LogType } from "../../../data/LogType";
-import { renderTemplate } from "../../../templateFormatter";
+import { renderTemplate, TemplateSafeValueContainer } from "../../../templateFormatter";
 import { createUserNotificationError, notifyUser, resolveUser, ucfirst, UserNotificationResult } from "../../../utils";
 import { CasesPlugin } from "../../Cases/CasesPlugin";
 import { IgnoredEventType, KickOptions, KickResult, ModActionsPluginType } from "../types";
@@ -31,13 +31,16 @@ export async function kickMember(
 
     if (contactMethods.length) {
       if (config.kick_message) {
-        const kickMessage = await renderTemplate(config.kick_message, {
-          guildName: pluginData.guild.name,
-          reason,
-          moderator: kickOptions.caseArgs?.modId
-            ? userToTemplateSafeUser(await resolveUser(pluginData.client, kickOptions.caseArgs.modId))
-            : {},
-        });
+        const kickMessage = await renderTemplate(
+          config.kick_message,
+          new TemplateSafeValueContainer({
+            guildName: pluginData.guild.name,
+            reason,
+            moderator: kickOptions.caseArgs?.modId
+              ? userToTemplateSafeUser(await resolveUser(pluginData.client, kickOptions.caseArgs.modId))
+              : null,
+          }),
+        );
 
         notifyResult = await notifyUser(member.user, kickMessage, contactMethods);
       } else {
diff --git a/backend/src/plugins/ModActions/functions/warnMember.ts b/backend/src/plugins/ModActions/functions/warnMember.ts
index 75d28735..e0f22c8f 100644
--- a/backend/src/plugins/ModActions/functions/warnMember.ts
+++ b/backend/src/plugins/ModActions/functions/warnMember.ts
@@ -3,7 +3,7 @@ import { GuildPluginData } from "knub";
 import { memberToTemplateSafeMember, userToTemplateSafeUser } from "../../../utils/templateSafeObjects";
 import { CaseTypes } from "../../../data/CaseTypes";
 import { LogType } from "../../../data/LogType";
-import { renderTemplate } from "../../../templateFormatter";
+import { renderTemplate, TemplateSafeValueContainer } from "../../../templateFormatter";
 import { createUserNotificationError, notifyUser, resolveUser, ucfirst, UserNotificationResult } from "../../../utils";
 import { waitForButtonConfirm } from "../../../utils/waitForInteraction";
 import { CasesPlugin } from "../../Cases/CasesPlugin";
@@ -21,13 +21,16 @@ export async function warnMember(
 
   let notifyResult: UserNotificationResult;
   if (config.warn_message) {
-    const warnMessage = await renderTemplate(config.warn_message, {
-      guildName: pluginData.guild.name,
-      reason,
-      moderator: warnOptions.caseArgs?.modId
-        ? userToTemplateSafeUser(await resolveUser(pluginData.client, warnOptions.caseArgs.modId))
-        : {},
-    });
+    const warnMessage = await renderTemplate(
+      config.warn_message,
+      new TemplateSafeValueContainer({
+        guildName: pluginData.guild.name,
+        reason,
+        moderator: warnOptions.caseArgs?.modId
+          ? userToTemplateSafeUser(await resolveUser(pluginData.client, warnOptions.caseArgs.modId))
+          : null,
+      }),
+    );
     const contactMethods = warnOptions?.contactMethods
       ? warnOptions.contactMethods
       : getDefaultContactMethods(pluginData, "warn");
diff --git a/backend/src/plugins/Mutes/functions/muteUser.ts b/backend/src/plugins/Mutes/functions/muteUser.ts
index fffb7587..4c39e091 100644
--- a/backend/src/plugins/Mutes/functions/muteUser.ts
+++ b/backend/src/plugins/Mutes/functions/muteUser.ts
@@ -7,7 +7,7 @@ import { Case } from "../../../data/entities/Case";
 import { LogType } from "../../../data/LogType";
 import { LogsPlugin } from "../../../plugins/Logs/LogsPlugin";
 import { ERRORS, RecoverablePluginError } from "../../../RecoverablePluginError";
-import { renderTemplate } from "../../../templateFormatter";
+import { renderTemplate, TemplateSafeValueContainer } from "../../../templateFormatter";
 import {
   notifyUser,
   resolveMember,
@@ -151,14 +151,17 @@ export async function muteUser(
 
   const muteMessage =
     template &&
-    (await renderTemplate(template, {
-      guildName: pluginData.guild.name,
-      reason: reason || "None",
-      time: timeUntilUnmute,
-      moderator: muteOptions.caseArgs?.modId
-        ? userToTemplateSafeUser(await resolveUser(pluginData.client, muteOptions.caseArgs.modId))
-        : "",
-    }));
+    (await renderTemplate(
+      template,
+      new TemplateSafeValueContainer({
+        guildName: pluginData.guild.name,
+        reason: reason || "None",
+        time: timeUntilUnmute,
+        moderator: muteOptions.caseArgs?.modId
+          ? userToTemplateSafeUser(await resolveUser(pluginData.client, muteOptions.caseArgs.modId))
+          : null,
+      }),
+    ));
 
   if (muteMessage && user instanceof User) {
     let contactMethods: UserNotificationMethod[] = [];
diff --git a/backend/src/plugins/WelcomeMessage/events/SendWelcomeMessageEvt.ts b/backend/src/plugins/WelcomeMessage/events/SendWelcomeMessageEvt.ts
index bf124fa0..750c6c29 100644
--- a/backend/src/plugins/WelcomeMessage/events/SendWelcomeMessageEvt.ts
+++ b/backend/src/plugins/WelcomeMessage/events/SendWelcomeMessageEvt.ts
@@ -1,11 +1,12 @@
 import { Snowflake, TextChannel } from "discord.js";
 import {
   channelToTemplateSafeChannel,
+  guildToTemplateSafeGuild,
   memberToTemplateSafeMember,
   userToTemplateSafeUser,
 } from "../../../utils/templateSafeObjects";
 import { LogType } from "../../../data/LogType";
-import { renderTemplate, TemplateParseError } from "../../../templateFormatter";
+import { renderTemplate, TemplateParseError, TemplateSafeValueContainer } from "../../../templateFormatter";
 import { createChunkedMessage, stripObjectToScalars, verboseChannelMention, verboseUserMention } from "../../../utils";
 import { sendDM } from "../../../utils/sendDM";
 import { welcomeMessageEvt } from "../types";
@@ -32,12 +33,14 @@ export const SendWelcomeMessageEvt = welcomeMessageEvt({
     let formatted;
 
     try {
-      const strippedMember = stripObjectToScalars(member, ["user", "guild"]);
-      formatted = await renderTemplate(config.message, {
-        member: strippedMember,
-        user: strippedMember["user"],
-        guild: strippedMember["guild"],
-      });
+      formatted = await renderTemplate(
+        config.message,
+        new TemplateSafeValueContainer({
+          member: memberToTemplateSafeMember(member),
+          user: userToTemplateSafeUser(member.user),
+          guild: guildToTemplateSafeGuild(member.guild),
+        }),
+      );
     } catch (e) {
       if (e instanceof TemplateParseError) {
         pluginData.getPlugin(LogsPlugin).logBotAlert({
diff --git a/backend/src/templateFormatter.test.ts b/backend/src/templateFormatter.test.ts
index 0d692e8b..39132731 100644
--- a/backend/src/templateFormatter.test.ts
+++ b/backend/src/templateFormatter.test.ts
@@ -1,5 +1,5 @@
 import test from "ava";
-import { parseTemplate, renderParsedTemplate, renderTemplate } from "./templateFormatter";
+import { parseTemplate, renderParsedTemplate, renderTemplate, TemplateSafeValueContainer } from "./templateFormatter";
 
 test("Parses plain string templates correctly", t => {
   const result = parseTemplate("foo bar baz");
@@ -75,7 +75,7 @@ test("Parses function variables with function variable arguments correctly", t =
 
 test("Renders a parsed template correctly", async t => {
   const parseResult = parseTemplate('foo {bar("str", 5.07, deeply(nested(8)))} baz');
-  const values = {
+  const values = new TemplateSafeValueContainer({
     bar(strArg, numArg, varArg) {
       return `${strArg} ${numArg} !${varArg}!`;
     },
@@ -85,7 +85,7 @@ test("Renders a parsed template correctly", async t => {
     nested(numArg) {
       return `?${numArg}?`;
     },
-  };
+  });
 
   const renderResult = await renderParsedTemplate(parseResult, values);
   t.is(renderResult, "foo str 5.07 !<?8?>! baz");
diff --git a/backend/src/utils/isScalar.ts b/backend/src/utils/isScalar.ts
new file mode 100644
index 00000000..b5d9eb64
--- /dev/null
+++ b/backend/src/utils/isScalar.ts
@@ -0,0 +1,3 @@
+export function isScalar(value: unknown): value is string | number | boolean | null | undefined {
+  return value == null || typeof value === "string" || typeof value === "number" || typeof value === "boolean";
+}
diff --git a/backend/src/utils/templateSafeObjects.ts b/backend/src/utils/templateSafeObjects.ts
index 47bcf3de..7f46517f 100644
--- a/backend/src/utils/templateSafeObjects.ts
+++ b/backend/src/utils/templateSafeObjects.ts
@@ -3,6 +3,7 @@ import {
   Guild,
   GuildChannel,
   GuildMember,
+  Message,
   PartialGuildMember,
   Role,
   Snowflake,
@@ -23,15 +24,18 @@ import {
 } from "../data/entities/SavedMessage";
 import { Case } from "../data/entities/Case";
 
-type Props<T> = {
-  [K in keyof T]: T[K];
-};
+type InputProps<T> = Omit<
+  {
+    [K in keyof T]: T[K];
+  },
+  "_isTemplateSafeValueContainer"
+>;
 
 export class TemplateSafeGuild extends TemplateSafeValueContainer {
   id: Snowflake;
   name: string;
 
-  constructor(data: Props<TemplateSafeGuild>) {
+  constructor(data: InputProps<TemplateSafeGuild>) {
     super(data);
   }
 }
@@ -46,7 +50,7 @@ export class TemplateSafeUser extends TemplateSafeValueContainer {
   bot?: boolean;
   createdAt?: number;
 
-  constructor(data: Props<TemplateSafeUser>) {
+  constructor(data: InputProps<TemplateSafeUser>) {
     super(data);
   }
 }
@@ -56,7 +60,7 @@ export class TemplateSafeUnknownUser extends TemplateSafeValueContainer {
   username: string;
   discriminator: string;
 
-  constructor(data: Props<TemplateSafeUnknownUser>) {
+  constructor(data: InputProps<TemplateSafeUnknownUser>) {
     super(data);
   }
 }
@@ -68,7 +72,7 @@ export class TemplateSafeRole extends TemplateSafeValueContainer {
   hexColor: string;
   hoist: boolean;
 
-  constructor(data: Props<TemplateSafeRole>) {
+  constructor(data: InputProps<TemplateSafeRole>) {
     super(data);
   }
 }
@@ -81,7 +85,7 @@ export class TemplateSafeMember extends TemplateSafeUser {
   // guildAvatarURL: string, Once DJS supports per-server avatars
   guildName: string;
 
-  constructor(data: Props<TemplateSafeMember>) {
+  constructor(data: InputProps<TemplateSafeMember>) {
     super(data);
   }
 }
@@ -89,7 +93,7 @@ export class TemplateSafeMember extends TemplateSafeUser {
 export class TemplateSafeUnknownMember extends TemplateSafeUnknownUser {
   user: TemplateSafeUnknownUser;
 
-  constructor(data: Props<TemplateSafeUnknownMember>) {
+  constructor(data: InputProps<TemplateSafeUnknownMember>) {
     super(data);
   }
 }
@@ -100,7 +104,7 @@ export class TemplateSafeChannel extends TemplateSafeValueContainer {
   mention: string;
   parentId?: Snowflake;
 
-  constructor(data: Props<TemplateSafeChannel>) {
+  constructor(data: InputProps<TemplateSafeChannel>) {
     super(data);
   }
 }
@@ -112,7 +116,7 @@ export class TemplateSafeStage extends TemplateSafeValueContainer {
   discoverable: boolean;
   topic: string;
 
-  constructor(data: Props<TemplateSafeStage>) {
+  constructor(data: InputProps<TemplateSafeStage>) {
     super(data);
   }
 }
@@ -125,7 +129,7 @@ export class TemplateSafeEmoji extends TemplateSafeValueContainer {
   identifier: string;
   mention: string;
 
-  constructor(data: Props<TemplateSafeEmoji>) {
+  constructor(data: InputProps<TemplateSafeEmoji>) {
     super(data);
   }
 }
@@ -141,7 +145,7 @@ export class TemplateSafeSticker extends TemplateSafeValueContainer {
   animated: boolean;
   url: string;
 
-  constructor(data: Props<TemplateSafeSticker>) {
+  constructor(data: InputProps<TemplateSafeSticker>) {
     super(data);
   }
 }
@@ -154,7 +158,7 @@ export class TemplateSafeSavedMessage extends TemplateSafeValueContainer {
   is_bot: boolean;
   data: TemplateSafeSavedMessageData;
 
-  constructor(data: Props<TemplateSafeSavedMessage>) {
+  constructor(data: InputProps<TemplateSafeSavedMessage>) {
     super(data);
   }
 }
@@ -170,7 +174,7 @@ export class TemplateSafeSavedMessageData extends TemplateSafeValueContainer {
   stickers?: Array<TypedTemplateSafeValueContainer<ISavedMessageStickerData>>;
   timestamp: number;
 
-  constructor(data: Props<TemplateSafeSavedMessageData>) {
+  constructor(data: InputProps<TemplateSafeSavedMessageData>) {
     super(data);
   }
 }
@@ -191,7 +195,18 @@ export class TemplateSafeCase extends TemplateSafeValueContainer {
   pp_name: string | null;
   log_message_id: string | null;
 
-  constructor(data: Props<TemplateSafeCase>) {
+  constructor(data: InputProps<TemplateSafeCase>) {
+    super(data);
+  }
+}
+
+export class TemplateSafeMessage extends TemplateSafeValueContainer {
+  id: string;
+  content: string;
+  author: TemplateSafeUser;
+  channel: TemplateSafeChannel;
+
+  constructor(data: InputProps<TemplateSafeMessage>) {
     super(data);
   }
 }
@@ -428,6 +443,15 @@ export function caseToTemplateSafeCase(theCase: Case): TemplateSafeCase {
   });
 }
 
+export function messageToTemplateSafeMessage(message: Message): TemplateSafeMessage {
+  return new TemplateSafeMessage({
+    id: message.id,
+    content: message.content,
+    author: userToTemplateSafeUser(message.author),
+    channel: channelToTemplateSafeChannel(message.channel as GuildChannel | ThreadChannel),
+  });
+}
+
 export function getTemplateSafeMemberLevel(pluginData: GuildPluginData<any>, member: TemplateSafeMember): number {
   if (member.id === pluginData.guild.ownerId) {
     return 99999;