LLM Coding Agent Fails: Concurrent Merge Clashes and Task Loops
Vjeux · x · 2026-07-30
The author shared engineering issues encountered while using an LLM agent to automate the conversion of assembly code to JavaScript.
- Concurrency Clashes: The LLM mistakenly attempted to merge changes directly into the main branch instead of a worktree. When multiple tasks ran concurrently, they clobbered each other and failed. Combined with a 15-minute timeout, this resulted in a massive backlog of unmerged tasks.
- Task Loop: The task manager had a logic flaw where it failed to check for work in progress, continuously re-assigning the exact same tasks and causing an infinite loop.
The author is currently fixing these issues to see if the workflow will stabilize.
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