Terminal readiness

Your agent shouldn’t have to guess when the terminal is ready.

“Command completed” while it is still running. “Waiting for terminal” after it is done. Duplicate dev servers. Lost prompts. These failures can involve input handling, process lifecycle, client bugs or application health. Start by distinguishing the signal your workflow needs.

Try it with your agent See the answer
Works through MCP with
  • Claude
  • Codex
  • Cursor
  • Gemini
  • any MCP client
The evidence

The same failure, reported across the market

These reports illustrate different failure modes. Check the affected version and current issue status before assuming that a report applies to your client or that agend addresses its cause.

These are historical reports, not agend customer results. Individual issues may be fixed in later releases. Reproduce your workflow and compare the relevant terminal and application signals.

The answer

Model the states. Don’t infer them from silence.

agend gives the agent a persistent machine and a real terminal through MCP. Interactive readiness, process completion, and application health remain separate signals—because they mean different things.

01
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Interactive readiness

A real PTY tells the agent when an interactive session is ready for its next action.

vim · REPLs · sudo · installers
02
✓

Process completion

Exit, timeout, and background execution have explicit lifecycle state and retained output.

builds · tests · migrations · jobs
03
●

Application health

A running PID is not a healthy service. Use the application’s own HTTP, TCP, or command probe.

HTTP 200 · db ping · queue connected
What changes

Replace the babysitting loop with state

A timeout only says time passed. Silence only says no bytes arrived. A PID only says a process exists. None of those answer the question the agent is actually asking.

  • × No arbitrary sleep 5 before trying again
  • × No prompt text regex tied to one shell or locale
  • × No duplicate command because the first one looked idle
  • ✓ One persistent session with explicit state
agent terminal
guessing

> npm run dev

timed out; is it running?

> sleep 5 && npm run dev

EADDRINUSE: port already in use

agend

> start dev server in background

task running · output retained

> curl --fail localhost:3000/health

HTTP 200 · application ready

An honest boundary

“Ready” depends on what you are waiting for.

agend can know that an interactive program is ready to receive input and that a process has finished. It does not pretend that either fact proves your application is healthy.

For a web server, database, or worker, the correct final signal is still an application-specific health check. agend gives the agent the persistent environment and lifecycle control to perform that check reliably.

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Stop teaching your agent to wait.
Give it a terminal that can answer.

One isolated Ubuntu environment, interactive terminal tools and persistent sessions. Test your chosen MCP client with one recurring workflow.

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