Training Therapeutic Judges and Multi-Agent Systems for Human-Aligned Mental Health Support

Mizanur Rahman, Abeer Badawi, Elahe Rahimi, Laleh Seyyed-Kalantari, Frank Rudzicz, Enamul Hoque Prince, Elham Dolatabadi


Abstract
Large language models show promise for mental health support, yet therapeutic quality improves only when evaluation functions as an actionable control signal rather than a passive metric. We introduce a framework that formulates therapeutic response generation as a decision-refinement problem driven by multi-dimensional, human-aligned evaluation. In Stage I, we introduce TheraJudge, an open-source therapeutic evaluator trained via preference-based optimization on human-annotated data to produce reliable judgments across 7 psychological dimensions. In Stage II, we introduce TheraAgent, which operationalizes TheraJudge’s evaluations through a coordinated refinement process with specialized Critic, Coach, and Therapist roles that translate evaluative signals into targeted response revisions. Empirically, TheraJudge achieves strong agreement with clinician ratings, with intraclass correlation coefficients (ICC = 0.87-0.95), surpassing supervised baselines and strong closed-source judges, particularly on critical dimensions such as Safety, Relevance, and Empathy. Acting on these evaluations, TheraAgent yields a +0.43 improvement in human-rated therapeutic quality (on a 5-point scale) under blind evaluation, with 96% clinician inter-rater reliability. Low-quality responses improve by +2.45 points with a 94% recovery rate, demonstrating targeted correction of unsafe outputs. Overall, our results indicate that effective alignment of mental-health LLMs stems from acting on human-aligned evaluation, rather than relying solely on stronger generation. We release code at <redacted>.
Anthology ID:
2026.findings-emnlp.27
Volume:
Findings of the Association for Computational Linguistics: EMNLP 2026
Month:
October
Year:
2026
Address:
Budapest, Hungary
Editors:
Hung-Yi Lee, Sunipa Dev, Jessy Li, Desmond Elliott
Venue:
Findings
SIG:
SIGDAT
Publisher:
Association for Computational Linguistics
Note:
Pages:
536–555
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URL:
https://aclanthology.org/2026.findings-emnlp.27/
DOI:
Bibkey:
Cite (ACL):
Mizanur Rahman, Abeer Badawi, Elahe Rahimi, Laleh Seyyed-Kalantari, Frank Rudzicz, Enamul Hoque Prince, and Elham Dolatabadi. 2026. Training Therapeutic Judges and Multi-Agent Systems for Human-Aligned Mental Health Support. In Findings of the Association for Computational Linguistics: EMNLP 2026, pages 536–555, Budapest, Hungary. Association for Computational Linguistics.
Cite (Informal):
Training Therapeutic Judges and Multi-Agent Systems for Human-Aligned Mental Health Support (Rahman et al., Findings 2026)
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PDF:
https://aclanthology.org/2026.findings-emnlp.27.pdf