2026 Q1 is the year developers still build the agent harness. 2026 Q3 / 2027 is the year the LLM builds its own harness.
Developers currently face a challenge known as the "agent harness problem" in AI coding assistants, where the effectiveness of tools like Claude Code and Cursor relies heavily on pre-written context files that brief the agent on project specifics. This boilerplate setup is repetitive across different projects and agents. The author has developed harnessforge, an open-source tool that inspects a repository and automatically generates these necessary startup files, aiming to provide AI coding agents with a more robust starting point. AI
IMPACT Simplifies AI agent setup for developers, potentially improving consistency and reducing boilerplate coding tasks.