Guild has introduced Software Factory, a system of specialized AI agents designed to autonomously find, plan, implement, review, and maintain engineering work. The company said it built the system for internal use first, and it has since become a significant part of how Guild ships software, with 34% of merged pull requests now written autonomously by the Factory and 56% of all code fixes originating from it.
According to Guild, the system is built as a pipeline of narrowly scoped agents rather than a single autonomous coding agent. A dispatcher routes incoming issues, a planner creates implementation plans, an implementer writes and tests code in a sandboxed environment, and a separate reviewer agent evaluates the work before human approval. Additional maintenance agents handle tasks like resolving code conflicts, triaging test failures, and identifying stale jobs, which the company said helps the system operate reliably over time. Guild reported that 91% of merged Factory pull requests require no additional engineer commits, with an average model cost of about $12 per merged PR.
The company said Software Factory does not merge its own code, maintaining human oversight over final outcomes even as agents take on greater autonomy. Guild described the effort as a shift from coding assistance toward broader autonomous engineering systems, with plans for the underlying architecture to adapt across different codebases using team-specific coding standards.
