Add Agent Message Queue community plugin entry

Author: avivsinai

README.md

@@ -69,6 +69,7 @@ Third-party plugins built by the community. [PRs welcome](#contributing)!
 
 ### Tools & Integrations
 
+- [Agent Message Queue](https://github.com/avivsinai/agent-message-queue) - File-based inter-agent messaging with co-op mode, cross-project federation, and orchestrator integrations.
 - [Apple Productivity](https://github.com/matk0shub/apple-productivity-mcp) - Local Apple Calendar and Reminders tooling for macOS with Codex plugin adapters.
 - [Bitbucket CLI](https://github.com/avivsinai/bitbucket-cli) - Manage Bitbucket repos, PRs, branches, issues, webhooks, and pipelines for Data Center and Cloud.
 - [Chrome DevTools](https://github.com/win4r/chrome-devtools-codex-plugin) - One-click Codex plugin wrapper for chrome-devtools-mcp.