Agent Non-termination
A problem in which an agent or system does not reach an appropriate completion or stopping condition and continues unnecessary iterations or actions.
Example
After finding an option that satisfies the requirements, an agent repeats the same searches and comparisons without ending the task.
Distinctions and cautions
Non-termination is not merely a task taking a long time. Long-running work may be appropriate when progress continues and defined limits or completion conditions are respected. Premature Termination is the opposite problem. Planning or Tool-use Failure may contribute to non-termination, but no single cause is assumed.
Terminology note
What counts as unnecessary continuation may vary with completion criteria, resource limits, task design, and the amount of progress considered acceptable.
Evidence
View evidence →
When Agents Do Not Stop: Uncovering Infinite Agentic Loops in LLM Agents
- Title
- When Agents Do Not Stop: Uncovering Infinite Agentic Loops in LLM Agents
- Author / organization
- Hou et al.
- Year
- 2026
- Source type / publication status
- Primary arXiv preprint; PREPRINT
- Supported concepts / claim context
- Agent Non-termination.
- Scope and limitations
- Analysis of 6,549 repositories; this dedicated large-scale source was not peer-reviewed as of the evidence cutoff.
- Access / version note
- 2026 preprint; no published substitute used.
- Recorded official URL / DOI / identifier
- Preprint reference:
arXiv:2607.01641
Robust Tool Use via Fission-GRPO
- Title
- Robust Tool Use via Fission-GRPO
- Author / organization
- Zhang et al.
- Year
- 2026
- Source type / publication status
- ACL peer-reviewed research; published
- Supported concepts / claim context
- Tool-use recovery; repeated invalid invocation.
- Scope and limitations
- Tested training methods and models; method-specific.
- Access / version note
- Published ACL.
- Recorded official URL / DOI / identifier
- DOI:
10.18653/v1/2026.acl-long.1880(DOI resolver)