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Test run

Official Everything Server

Invalid Tool Input

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ImplementationOfficial Everything Serverv2026.8.31

StatusPassed

Transportstdio

TestedSep 24, 2026

Duration2.15 ms

Observations

Recorded behavior from this compatibility test.

Invalid echo input returned the expected error.

Evidence

Supporting records captured for this run.

1

observation

Invalid echo input returned the expected error.

Source: https://github.com/anilloutombam/mcp-failure-lab/blob/main/docs/compatibility/everything-server-2026.8.31.md

View raw evidence

Invalid echo input returned the expected error.

Run details

Scenario: Invalid Tool Input
Category: protocol
Version: 2026.8.31
Run ID: 6kDFO3uJer7g1G8mIaDtkt

Source report Implementation repository

MCP compatibility data, with evidence and limitations in context.

Methodology & limitations Source code MCP Failure Lab

Official Everything Server: Invalid Tool Input | MCP Failure Observatory