Open the server as AgentStatus.

A residential node opens this server as AgentStatus and writes one record covering transport, auth, negotiate, list, and call. That is not a named-host walk.

One Connection run

AgentStatus
  1. 01

    Transport

    Reached

    Home internet opened the production URL.

  2. 02

    Negotiate

    Modern

    Modern path first. Legacy only if required.

  3. 03

    Call

    Failed

    Session opened. tools/call did not finish.

Named hosts live on Host Compatibility.

The URL is the start. The session is the test.

Grey never changes the grade. Our time cap is our fault. Named-host rows live on Host Compatibility.

The probe path

A residential node opens this server as AgentStatus. One run writes one record.

Transport
open → production MCP URL
reachable

Transport

A home internet node opens the real endpoint. This is not a cloud ping.

AuthSET
CredentialSET
SessionOPEN
Host authSEPARATE

Authorization

Connection uses the credential configured for this server. Host Compatibility separately tests each host's auth method.

NegotiateDUAL
ModernOK
LegacyFALLBACK
tools/list20

Negotiate, then list

Modern path first, older session path if required. Then tools, resources, and prompts the server advertises.

How a run is graded

Healthy, degraded, or down. Grey never changes the grade.

GradeRECORD
HealthyALL HELD
DegradedPARTIAL
DownNO SESSION

The grades

Healthy: every applicable step passed. Degraded: the server answered but the check could not finish. Down: no MCP session opened.

fetchCALLED
JSON-RPCCOMPLETE
Requested dataYES
Output schemaMATCH

Tool checks on this run

Completes the call, returns requested data, matches the published output schema. No output schema is neutral.

OwnershipOURS
Time capOUR FAULT
Empty listALLOWED
Not reachedNOT A PASS

What does not count against the server

Our own time cap. Empty lists the tool is allowed to return. A login mode mismatch we caused.

Outside the grade

Grey never changes the grade. A listed tool you never called does not lower Connection.

GreyN/A
Not applicableGREY
Changes gradeNEVER
Not reachedNOT A PASS

Not applicable stays grey

This server does not expose that step. Grey never changes the grade.

CatalogSCOPE
searchCALLED
fetchCALLED
writeNEVER CALLED

Listed is not called

A tool that was listed but never called does not lower Connection.

WritesOFF
DefaultOFF
PinnedSETTINGS
This runONE RECORD

Write tools stay off

Write tools stay off unless you pin them. One run still writes one record.

FAQ

Common questions

QuestionAnswer
Is Connection a named-host walk?No. Connection opens the server as AgentStatus. Host Compatibility is the named-host walk. One Connection run writes one record.
Does a listed tool lower the grade if you never called it?No. A tool that was listed but never called does not lower Connection. Write tools stay off unless you pin them.
What if an earlier step failed?Not reached. We stopped. That is not a pass, and later steps stay untested.

A 200 on the address is not a session.Keep the record of the path.

Paste the MCP URL. We open it from home internet and write one Connection record per run.

Cover your blind spots