Improve Strands Tool Error Capturing

[TimPansino]

Overview

• Add additional instrumentation to Strands Agents to capture errors in synchronous tool functions decorated with @tool.
• Change coverage of all tools in Strands to track errors emitted from stream() instead of relying on the _tool_func attribute for better coverage.
• Overhaul Strands Agents testing to better cover the entire matrix of tool types and invocation functions.

[github-actions]

✅MegaLinter analysis: Success

Descriptor	Linter	Files	Fixed	Errors	Warnings	Elapsed time
✅ ACTION	actionlint	7		0	0	0.95s
✅ MARKDOWN	markdownlint	7	0	0	0	1.3s
✅ PYTHON	ruff	962	0	0	0	1.01s
✅ PYTHON	ruff-format	962	0	0	0	0.36s
✅ YAML	prettier	15	0	0	0	1.48s
✅ YAML	v8r	15		0	0	5.48s
✅ YAML	yamllint	15		0	0	0.65s

See detailed reports in MegaLinter artifacts

[codecov-commenter]

Codecov Report

❌ Patch coverage is 74.07407% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 81.66%. Comparing base (a7ade08) to head (89ef0b3).

Files with missing lines	Patch %	Lines
newrelic/hooks/mlmodel_strands.py	73.07%	5 Missing and 2 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1623   +/-   ##
=======================================
  Coverage   81.65%   81.66%           
=======================================
  Files         209      209           
  Lines       24392    24416   +24     
  Branches     3870     3873    +3     
=======================================
+ Hits        19918    19939   +21     
- Misses       3162     3164    +2     
- Partials     1312     1313    +1     

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[umaannamalai]

Do we have a handle to the tool_id here (stored in the strands_attrs? We typically pass the tool_id/ agent_id in as an attribute to the notice_error call.

[TimPansino]

I was able to add tool_id, no handle to agent_id though.