---
title: 'The auxiliary.title_generation 400: Why My Agent Warned Me on Every New Session'
url: 'https://docs.agenteum.top/blog/2026-09-16-auxiliary-title-generation-400'
markdown: 'https://docs.agenteum.top/blog/2026-09-16-auxiliary-title-generation-400.md'
date: '2026-09-16'
description: 'A side-call that names each agent session was failing with HTTP 400 code 1210 on every new CLI session. The log trace, the provider translation behind it, the API probes that settled it, and the one-line config fix.'
taxonomy:
  category:
    - tech
  tag:
    - ai
    - hermes
    - agents
    - configuration
    - api
  archives_month:
    - sep_2026
  archives_year:
    - '2026'
---

# The auxiliary.title_generation 400: Why My Agent Warned Me on Every New Session

---

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