diff --git a/.gitignore b/.gitignore
index 5d085b9..6a600a0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -265,6 +265,11 @@ venv/
 *.coverage
 hypothesis/
 
+# ============================================================
+# Local wiki clone (not version controlled)
+# ============================================================
+wiki/
+
 # ============================================================
 # Dolibarr (base + runtime)
 # ============================================================
diff --git a/templates/configs/.gitignore.joomla b/templates/configs/.gitignore.joomla
index 86166bd..f7a3b59 100644
--- a/templates/configs/.gitignore.joomla
+++ b/templates/configs/.gitignore.joomla
@@ -201,6 +201,10 @@ venv/
 *.coverage
 hypothesis/
 
+# ============================================================
+# Local wiki clone (not version controlled)
+# ============================================================
+wiki/
 
 # ============================================================
 # Joomla runtime / development
diff --git a/templates/configs/gitignore b/templates/configs/gitignore
index 61f6892..97a895d 100644
--- a/templates/configs/gitignore
+++ b/templates/configs/gitignore
@@ -201,3 +201,8 @@ venv/
 *.coverage
 hypothesis/
 
+# ============================================================
+# Local wiki clone (not version controlled)
+# ============================================================
+wiki/
+
diff --git a/templates/configs/gitignore.dolibarr b/templates/configs/gitignore.dolibarr
index 597bf22..8e9cd4a 100644
--- a/templates/configs/gitignore.dolibarr
+++ b/templates/configs/gitignore.dolibarr
@@ -201,6 +201,10 @@ venv/
 *.coverage
 hypothesis/
 
+# ============================================================
+# Local wiki clone (not version controlled)
+# ============================================================
+wiki/
 
 # ============================================================
 # Dolibarr runtime / data
diff --git a/validate/check_repo_health.php b/validate/check_repo_health.php
index 4f09810..c66b82d 100755
--- a/validate/check_repo_health.php
+++ b/validate/check_repo_health.php
@@ -16,7 +16,7 @@
  *   Manifest & Config (20) — .moko-platform, workflows, README quality, CODE_OF_CONDUCT, .gitignore content, CLAUDE.md quality
  *   Documentation (15)   — wiki-first: docs/ must NOT exist, CHANGELOG [Unreleased]
  *   License Headers (15) — Copyright, SPDX, FILE INFORMATION in source files
- *   Disallowed (10)      — TODO.md, vendor/, node_modules/, .claude/, .mcp.json, renovate.json, profile.ps1
+ *   Disallowed (10)      — TODO.md, vendor/, node_modules/, .claude/, wiki/, .mcp.json, renovate.json, profile.ps1
  *   Workflows (15)       — repo-health, sync-roadmap-wiki, CI/deploy
  *   Security (20)        — SECURITY.md, scanning, no renovate.json, no secrets
  *   Rulesets (15)        — main protected, dev branch, rulesets
@@ -121,6 +121,9 @@ class RepoHealthChecker extends CliFramework
         if (is_dir("{$p}/.claude")) {
             $this->addCheck($cat, '.claude/ should not be committed', false, 0);
         }
+        if (is_dir("{$p}/wiki")) {
+            $this->addCheck($cat, 'wiki/ should not be committed', false, 0);
+        }
     }
 
     // ── Manifest & Config (15 pts) ───────────────────────────────────
@@ -144,9 +147,10 @@ class RepoHealthChecker extends CliFramework
         if (file_exists("{$p}/.gitignore")) {
             $gi = file_get_contents("{$p}/.gitignore");
             $gitignoreOk = str_contains($gi, '.claude/') && str_contains($gi, 'TODO.md')
-                && str_contains($gi, '*.min.css') && str_contains($gi, '*.min.js');
+                && str_contains($gi, '*.min.css') && str_contains($gi, '*.min.js')
+                && str_contains($gi, 'wiki/');
         }
-        $this->addCheck($cat, '.gitignore has .claude/, TODO.md, *.min.css/js',
+        $this->addCheck($cat, '.gitignore has .claude/, TODO.md, *.min.css/js, wiki/',
             $gitignoreOk, 3);
 
         // CLAUDE.md should have project overview