diff --git a/dev/issues/README.md b/dev/issues/README.md
index 95efce4..63f0e9c 100644
--- a/dev/issues/README.md
+++ b/dev/issues/README.md
@@ -24,4 +24,4 @@ afectados y notas de implementacion.
 | 17 | MCP client tools             | [0017-mcp-client-tools.md](0017-mcp-client-tools.md)                | pendiente  |
 | 18 | Shared knowledge             | [0018-shared-knowledge.md](0018-shared-knowledge.md)                 | pendiente  |
 | 19 | Prompt injection hardening   | [0019-prompt-injection-hardening.md](completed/0019-prompt-injection-hardening.md) | completado |
-| 20 | Aislar claude -p del repo    | [0020-claude-code-sandbox.md](0020-claude-code-sandbox.md)           | pendiente  |
+| 20 | Aislar claude -p del repo    | [0020-claude-code-sandbox.md](completed/0020-claude-code-sandbox.md) | completado |
diff --git a/dev/issues/0020-claude-code-sandbox.md b/dev/issues/completed/0020-claude-code-sandbox.md
similarity index 100%
rename from dev/issues/0020-claude-code-sandbox.md
rename to dev/issues/completed/0020-claude-code-sandbox.md