The Drop #4: agent sessions, coding-agent tooling, and your biggest time sink

Hey builders. Here are some of the tools added since The Drop #3. Every description comes from the tool's listing or its own site.

One ask

What's your biggest time sink when you build? Tell us in a minute and it will help us pick what to cover next.

Running coding agents

• OpenLLM: A local routing layer for Claude Code, Codex and OpenCode.
• Mallard: Git for AI agent sessions: share, back up and resume.
• Agent HUD: A HUD for Claude Code, Codex and 16 more coding agents.
• crystl: A multitasking terminal for AI coding agents on macOS.
• Cosyra: Run Claude Code and Codex from your phone.
• Sentient: An open-source monitor for coding agents.

Review, safety and quality

• CleanSlop: Find what breaks in vibe-coded web apps before launch.
• LiveReview: Risk-aware AI code review that auto-approves safe PRs.
• CC Auto Review: Local Claude Code reviews your GitHub PRs.
• KeyContain: Fine-grained access for every API your agents touch.

Infrastructure and building blocks

• MachineMail: Real email inboxes for AI agents, with trust built in.
• Maritime: Cloud computers for any AI agent.
• MCPCore: No-code MCP server builder and hosting.
• Spooler: A simple managed message queue for background jobs.
• Deployed Yet?: Mac menu bar for Vercel, Cloudflare and GitHub deploys.

Browse more

All the new additions are on getstackdrop.com/new. The full directory is at getstackdrop.com/tools. Built something? Submit it.