[Backport 3.1] Fix tool not found in MCP memory issue

[opensearch-trigger-bot]

Backport 782e97d from #3931

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.36%. Comparing base (a551c9c) to head (2af05cd).
Report is 1 commits behind head on 3.1.

Additional details and impacted files

@@             Coverage Diff              @@
##                3.1    #3932      +/-   ##
============================================
- Coverage     80.37%   80.36%   -0.01%     
- Complexity     7916     7917       +1     
============================================
  Files           693      693              
  Lines         34864    34864              
  Branches       3878     3878              
============================================
- Hits          28021    28018       -3     
- Misses         5103     5104       +1     
- Partials       1740     1742       +2     

Flag	Coverage Δ
ml-commons	80.36% <100.00%> (-0.01%)	⬇️

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