diff --git a/.gitignore b/.gitignore
index c9f5d34..a979320 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,16 @@
 .superpowers/
 .mcp.json
 .claude/settings.local.json
+.claude/scheduled_tasks.lock
 ezscale-discovery-*/
+
+# Docker dev env
+.env.docker
+
+# Playwright MCP cache + per-session debris
+.playwright-mcp/
+
+# Loose screenshots from headless Chrome / visual companion sessions.
+# Intentionally archived screenshots belong under docs/; root-level PNGs
+# are throwaway debug artifacts that shouldn't be tracked.
+/*.png