chore: expand agents config

Author: dcramer

.agents/.gitignore

@@ -5,6 +5,7 @@
 /skills/brand-guidelines/
 /skills/chat-sdk/
 /skills/commit/
+/skills/doc-coauthoring/
 /skills/dotagents/
 /skills/iterate-pr/
 /skills/pr-writer/

agents.toml

@@ -38,7 +38,7 @@ source = "getsentry/skills"
 
 [[mcp]]
 name = "sentry"
-url = "https://mcp.sentry.dev/mcp?experimental=1"
+url = "https://mcp.sentry.dev/mcp/sentry/junior?experimental=1"
 
 [[skills]]
 name = "chat-sdk"
@@ -47,3 +47,7 @@ source = "vercel/chat"
 [[skills]]
 name = "ai-sdk"
 source = "vercel/ai"
+
+[[skills]]
+name = "doc-coauthoring"
+source = "getsentry/skills"