diff --git a/plugins/multisrc/activeSources.js b/plugins/multisrc/activeSources.js
new file mode 100644
index 000000000..7b79ffa4e
--- /dev/null
+++ b/plugins/multisrc/activeSources.js
@@ -0,0 +1,11 @@
+// Sources marked `"options": { "down": true }` in a generator's sources.json
+// stay listed there for reference but are not generated, so dead sites are
+// not published as working plugins.
+export const activeSources = (sources, generator) =>
+  sources.filter(source => {
+    if (source.options?.down) {
+      console.log(`[${generator}]: Skipping down source`, source.id);
+      return false;
+    }
+    return true;
+  });
diff --git a/plugins/multisrc/fictioneer/generator.js b/plugins/multisrc/fictioneer/generator.js
index 452a878e6..00007d97a 100644
--- a/plugins/multisrc/fictioneer/generator.js
+++ b/plugins/multisrc/fictioneer/generator.js
@@ -4,7 +4,10 @@ import { dirname, join } from 'path';
 
 const folder = dirname(fileURLToPath(import.meta.url));
 
-import list from './sources.json' with { type: 'json' };
+import allSources from './sources.json' with { type: 'json' };
+import { activeSources } from '../activeSources.js';
+
+const list = activeSources(allSources, 'fictioneer');
 
 export const generateAll = function () {
   return list.map(source => {
diff --git a/plugins/multisrc/generate-multisrc-plugins.js b/plugins/multisrc/generate-multisrc-plugins.js
index 17cd119b0..bcbdd41bf 100644
--- a/plugins/multisrc/generate-multisrc-plugins.js
+++ b/plugins/multisrc/generate-multisrc-plugins.js
@@ -13,20 +13,36 @@ const isScriptGenerator = s => {
   return !!s && typeof s === 'function';
 };
 
+const PLUGINS_DIR = './plugins';
+
+// Drops a generator's previous output, so sources that are now skipped
+// (e.g. marked down) or renamed do not linger when the playground runs
+// generation without `clean:multisrc` first.
+const removeGenerated = name => {
+  for (const lang of fs.readdirSync(PLUGINS_DIR)) {
+    const dir = path.join(PLUGINS_DIR, lang);
+    if (lang === 'multisrc' || !fs.lstatSync(dir).isDirectory()) continue;
+    for (const file of fs.readdirSync(dir)) {
+      if (file.endsWith(`[${name}].ts`)) fs.unlinkSync(path.join(dir, file));
+    }
+  }
+};
+
 const generate = async name => {
   try {
     const generateAll = (await import(`./${name}/generator.js`)).generateAll;
     if (!isScriptGenerator(generateAll)) return false;
     const sources = generateAll();
+    // only after generateAll succeeded, so a broken generator keeps its output
+    removeGenerated(name);
     for (let source of sources) {
       const { lang, filename, pluginScript } = source;
       if (!lang || !filename || !pluginScript) {
         console.warn(name, ': lang, filename, pluginScript are required!');
         continue;
       }
-      const pluginsDir = './plugins';
       const filePath = path.join(
-        pluginsDir,
+        PLUGINS_DIR,
         lang.toLowerCase(),
         filename.replace(/[\s-.]+/g, '') + `[${name}].ts`,
       );
diff --git a/plugins/multisrc/hotnovelpub/generator.js b/plugins/multisrc/hotnovelpub/generator.js
index 7daca0601..d395c5f42 100644
--- a/plugins/multisrc/hotnovelpub/generator.js
+++ b/plugins/multisrc/hotnovelpub/generator.js
@@ -1,8 +1,11 @@
-import list from './sources.json' with { type: 'json' };
+import allSources from './sources.json' with { type: 'json' };
+import { activeSources } from '../activeSources.js';
 import { readFileSync } from 'fs';
 import { fileURLToPath } from 'url';
 import { dirname, join } from 'path';
 
+const list = activeSources(allSources, 'hotnovelpub');
+
 const folder = dirname(fileURLToPath(import.meta.url));
 const FilterTypes = {
   TextInput: 'Text',
diff --git a/plugins/multisrc/ifreedom/generator.js b/plugins/multisrc/ifreedom/generator.js
index 032768446..3e9f8f347 100644
--- a/plugins/multisrc/ifreedom/generator.js
+++ b/plugins/multisrc/ifreedom/generator.js
@@ -1,9 +1,12 @@
-import list from './sources.json' with { type: 'json' };
+import allSources from './sources.json' with { type: 'json' };
+import { activeSources } from '../activeSources.js';
 import defaultSettings from './settings.json' with { type: 'json' };
 import { readFileSync } from 'fs';
 import { fileURLToPath } from 'url';
 import { dirname, join } from 'path';
 
+const list = activeSources(allSources, 'ifreedom');
+
 const folder = dirname(fileURLToPath(import.meta.url));
 
 export const generateAll = function () {
diff --git a/plugins/multisrc/lightnovelwp/generator.js b/plugins/multisrc/lightnovelwp/generator.js
index d6bcd242e..52b84744c 100644
--- a/plugins/multisrc/lightnovelwp/generator.js
+++ b/plugins/multisrc/lightnovelwp/generator.js
@@ -1,8 +1,11 @@
-import list from './sources.json' with { type: 'json' };
+import allSources from './sources.json' with { type: 'json' };
+import { activeSources } from '../activeSources.js';
 import { existsSync, readFileSync } from 'fs';
 import { fileURLToPath } from 'url';
 import { dirname, join } from 'path';
 
+const list = activeSources(allSources, 'lightnovelwp');
+
 const folder = dirname(fileURLToPath(import.meta.url));
 
 export const generateAll = function () {
diff --git a/plugins/multisrc/madara/generator.js b/plugins/multisrc/madara/generator.js
index cb3fa09c7..1da818295 100644
--- a/plugins/multisrc/madara/generator.js
+++ b/plugins/multisrc/madara/generator.js
@@ -1,8 +1,11 @@
-import list from './sources.json' with { type: 'json' };
+import allSources from './sources.json' with { type: 'json' };
+import { activeSources } from '../activeSources.js';
 import { existsSync, readFileSync } from 'fs';
 import { fileURLToPath } from 'url';
 import { dirname, join } from 'path';
 
+const list = activeSources(allSources, 'madara');
+
 const folder = dirname(fileURLToPath(import.meta.url));
 
 export const generateAll = function () {
diff --git a/plugins/multisrc/mtlnovel/generator.js b/plugins/multisrc/mtlnovel/generator.js
index b058f439b..b45a55310 100644
--- a/plugins/multisrc/mtlnovel/generator.js
+++ b/plugins/multisrc/mtlnovel/generator.js
@@ -1,7 +1,10 @@
-import list from './sources.json' with { type: 'json' };
+import allSources from './sources.json' with { type: 'json' };
+import { activeSources } from '../activeSources.js';
 import { readFileSync } from 'fs';
 import { fileURLToPath } from 'url';
 import { dirname } from 'path';
+
+const list = activeSources(allSources, 'mtlnovel');
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = dirname(__filename);
 
diff --git a/plugins/multisrc/novelcool/generator.js b/plugins/multisrc/novelcool/generator.js
index d9d05c9af..abf123a34 100644
--- a/plugins/multisrc/novelcool/generator.js
+++ b/plugins/multisrc/novelcool/generator.js
@@ -1,7 +1,10 @@
-import list from './sources.json' with { type: 'json' };
+import allSources from './sources.json' with { type: 'json' };
+import { activeSources } from '../activeSources.js';
 import { readFileSync } from 'fs';
 import { fileURLToPath } from 'url';
 import { dirname } from 'path';
+
+const list = activeSources(allSources, 'novelcool');
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = dirname(__filename);
 
diff --git a/plugins/multisrc/novelfire/generator.js b/plugins/multisrc/novelfire/generator.js
index 387851414..38af85a11 100644
--- a/plugins/multisrc/novelfire/generator.js
+++ b/plugins/multisrc/novelfire/generator.js
@@ -1,8 +1,11 @@
-import list from './sources.json' with { type: 'json' };
+import allSources from './sources.json' with { type: 'json' };
+import { activeSources } from '../activeSources.js';
 import { existsSync, readFileSync } from 'fs';
 import { fileURLToPath } from 'url';
 import { dirname, join } from 'path';
 
+const list = activeSources(allSources, 'novelfire');
+
 const folder = dirname(fileURLToPath(import.meta.url));
 
 export const generateAll = function () {
diff --git a/plugins/multisrc/ranobes/generator.js b/plugins/multisrc/ranobes/generator.js
index 07229b7e3..3ff93411f 100644
--- a/plugins/multisrc/ranobes/generator.js
+++ b/plugins/multisrc/ranobes/generator.js
@@ -1,8 +1,11 @@
-import list from './sources.json' with { type: 'json' };
+import allSources from './sources.json' with { type: 'json' };
+import { activeSources } from '../activeSources.js';
 import { readFileSync } from 'fs';
 import { fileURLToPath } from 'url';
 import { dirname, join } from 'path';
 
+const list = activeSources(allSources, 'ranobes');
+
 const folder = dirname(fileURLToPath(import.meta.url));
 
 export const generateAll = function () {
diff --git a/plugins/multisrc/readnovelfull/generator.js b/plugins/multisrc/readnovelfull/generator.js
index b897ed2d6..53b69fcaa 100644
--- a/plugins/multisrc/readnovelfull/generator.js
+++ b/plugins/multisrc/readnovelfull/generator.js
@@ -1,8 +1,11 @@
-import list from './sources.json' with { type: 'json' };
+import allSources from './sources.json' with { type: 'json' };
+import { activeSources } from '../activeSources.js';
 import { existsSync, readFileSync } from 'fs';
 import { fileURLToPath } from 'url';
 import { dirname, join } from 'path';
 
+const list = activeSources(allSources, 'readnovelfull');
+
 const folder = dirname(fileURLToPath(import.meta.url));
 
 export const generateAll = function () {
diff --git a/plugins/multisrc/readwn/generator.js b/plugins/multisrc/readwn/generator.js
index c4ae9e9b6..2985a6b1d 100644
--- a/plugins/multisrc/readwn/generator.js
+++ b/plugins/multisrc/readwn/generator.js
@@ -1,8 +1,11 @@
-import list from './sources.json' with { type: 'json' };
+import allSources from './sources.json' with { type: 'json' };
+import { activeSources } from '../activeSources.js';
 import { existsSync, readFileSync } from 'fs';
 import { fileURLToPath } from 'url';
 import { dirname, join } from 'path';
 
+const list = activeSources(allSources, 'readwn');
+
 const folder = dirname(fileURLToPath(import.meta.url));
 
 export const generateAll = function () {
diff --git a/plugins/multisrc/rulate/generator.js b/plugins/multisrc/rulate/generator.js
index bfda48f34..7f93bbf0b 100644
--- a/plugins/multisrc/rulate/generator.js
+++ b/plugins/multisrc/rulate/generator.js
@@ -1,9 +1,12 @@
-import list from './sources.json' with { type: 'json' };
+import allSources from './sources.json' with { type: 'json' };
+import { activeSources } from '../activeSources.js';
 import defaultSettings from './settings.json' with { type: 'json' };
 import { existsSync, readFileSync } from 'fs';
 import { fileURLToPath } from 'url';
 import { dirname, join } from 'path';
 
+const list = activeSources(allSources, 'rulate');
+
 const folder = dirname(fileURLToPath(import.meta.url));
 const key = 'fpoiKLUues81werht039';
 
diff --git a/plugins/multisrc/webnovelworld/generator.js b/plugins/multisrc/webnovelworld/generator.js
index 01b39e7a2..8402fa92f 100644
--- a/plugins/multisrc/webnovelworld/generator.js
+++ b/plugins/multisrc/webnovelworld/generator.js
@@ -1,8 +1,11 @@
-import list from './sources.json' with { type: 'json' };
+import allSources from './sources.json' with { type: 'json' };
+import { activeSources } from '../activeSources.js';
 import { existsSync, readFileSync } from 'fs';
 import { fileURLToPath } from 'url';
 import { dirname, join } from 'path';
 
+const list = activeSources(allSources, 'webnovelworld');
+
 const folder = dirname(fileURLToPath(import.meta.url));
 
 export const generateAll = function () {