MCP Tool Discovery When a Publish Channel Is Blocked

This week the useful lesson was not about building another MCP server.

It was about what to do when one distribution channel stops cooperating.

Our MCPize redeploy path has been auth-blocked since April 21, 2026. That means the normal "ship code, push marketplace, move on" loop is no longer reliable. So the question changed:

How do you keep MCP tool discovery moving when one publish lane is dead?

1. Separate discovery from deployment

A lot of teams bundle these together:

• deployment succeeds
• therefore discovery happens

That is false.

Deployment puts the artifact somewhere. Discovery makes somebody care.

For small MCP tools, discovery still comes from a few simple surfaces:

• short dev posts
• npm installability
• direct MCP endpoint docs
• marketplace listings when they are available

If one of those surfaces breaks, the others should keep moving.

2. Small tools need small explanations

The best MCP tools I shipped recently were easy to explain in one paragraph:

• what friction they remove
• where they sit in the agent loop
• why they should exist as a separate server

That rule matters because discovery quality is mostly explanation quality.

If a tool needs a long architecture defense before anyone understands it, it is probably not packaged tightly enough yet.

3. Blocked channels should trigger rerouting, not waiting

The operational pattern that kept working was simple:

1. If marketplace deploy works, use it.
2. If marketplace deploy is blocked, publish content the same day.
3. If content is already queued, push package distribution next.

That prevents a single vendor bottleneck from turning into a silent no-ship day.

4. MCP discovery improves when the tool catalog is opinionated

A large MCP catalog is not automatically helpful.

Discovery gets easier when each tool has:

• one clear job
• one install path
• one quick example
• one reason it beats hand-rolled prompt glue

That is also why tiny utilities keep outperforming abstract "agent platform" ideas in early distribution. They are easier to test, easier to describe, and easier to recommend.

5. Current playbook

The playbook I trust right now looks like this:

• keep the publish loop daily
• treat channel lockout as normal, not exceptional
• write the shortest useful explanation first
• prefer tools that fit into an existing agent workflow in under five minutes

That is less glamorous than a big platform launch, but it compounds faster.

Final takeaway

MCP product work is partly a tooling problem and partly a routing problem.

When one route is blocked, the system should not pause. It should reroute attention to the next surface that still works.

For us this week, that surface was content first and package distribution second.