feat: improve AgenticToolChoice

[mrh997]

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[codecov]

Codecov Report

❌ Patch coverage is 18.18182% with 9 lines in your changes missing coverage. Please review.
✅ Project coverage is 78.85%. Comparing base (0b72ca9) to head (d9ce204).
⚠️ Report is 1 commits behind head on release/agentic_model.

Files with missing lines	Patch %	Lines
compose/workflow.go	0.00%	9 Missing ⚠️

Additional details and impacted files

@@                    Coverage Diff                    @@
##           release/agentic_model     #684      +/-   ##
=========================================================
- Coverage                  79.68%   78.85%   -0.83%     
=========================================================
  Files                        130      130              
  Lines                      13300    13286      -14     
=========================================================
- Hits                       10598    10477     -121     
- Misses                      1841     1940      +99     
- Partials                     861      869       +8     

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