--- title: "Two agents, each with its own page and its own tests | Changelog" description: "The free MCP server now comes as two agents with their own pages: the Deliverability Agent finds out what is wrong, and the Cold Email Infrastructure Agent…" url: https://warminboxes.com/changelog/2026-10-23 breadcrumb: "Home > Changelog > 23 October 2026" --- Changelog 23 October 2026 # Two agents, each with its own page and its own tests The free MCP server now comes as two agents with their own pages: the Deliverability Agent finds out what is wrong, and the Cold Email Infrastructure Agent, at its own address, works out what to buy. Each hands off to the other with its own words, each has a tested set of prompts, and the agent pages, the Claude connector page and the ChatGPT plugin page say plainly that the directory listings are still in review. ## For AI agents - The Deliverability Agent is the free MCP server as it was, every tool, at warminboxes.com/mcp. The Cold Email Infrastructure Agent is warminboxes.com/mcp/infrastructure: only the sizing, pricing and setup tools, for someone planning a fleet, and it refuses a diagnostic call rather than running it. [/plugins](https://warminboxes.com/plugins) - A new tool, quote_inboxes, prices a number of inboxes rather than a send volume, so "preview 100 inboxes" gets the domains, the daily capacity and the monthly cost at our published prices. Azure is quoted by the tenant and says so when a count does not fill one. [the Infrastructure Agent](https://warminboxes.com/plugins/cold-email-infrastructure-agent) - The agents hand off to each other on evidence. A domain on a domain-level blocklist, blocklist hits or a D or F grade carries a note that the infrastructure appears degraded and the Infrastructure Agent can size a replacement; every sizing result says to check the cause with the Deliverability Agent before replacing anything. [the Deliverability Agent](https://warminboxes.com/plugins/deliverability-agent) - Both agents work in Grok as custom connectors: Connectors, New Connector, Custom, and the server URL. The agent pages have an Add to Grok button, and the Grok inbox page, which said nothing of ours connected to Grok, now says how. [/grok-inboxes](https://warminboxes.com/grok-inboxes) - Each agent has a set of golden prompts, 41 and 35, each naming the tool that should answer it and what the answer must contain. They are rerun after every change; the agent pages show the same prompts. [/plugins](https://warminboxes.com/plugins) ## Pages - Canonical pages for both agents: what to ask, an example answer, every tool each can call with the page that runs it, what it will not do, when it hands off, and how the answers are worked out. Every tool page now says which agent runs it. [/plugins/deliverability-agent](https://warminboxes.com/plugins/deliverability-agent) - Pages for WarmInboxes as a Claude connector and as a ChatGPT plugin, open on the listing’s review status and on how to add it by hand meanwhile. [/claude-connector](https://warminboxes.com/claude-connector) ## Privacy - The MCP server counts sessions and tool calls anonymously, by agent, kind of client and tool, with no domain, address, pasted text, IP or user id, and deletes the counts after 90 days. Order links it hands out carry a random reference so orders that began there can be counted. The privacy policy says so. [/privacy](https://warminboxes.com/privacy) [All entries →](https://warminboxes.com/changelog)