# Your Agent Is Writing Its Own Tools. Who Reviews the PRs?

> Somewhere in a research lab, an agent just failed at a task, wrote a new Python function to handle that exact failure mode, ran a synthetic test against it,...

- URL: https://agents.postlark.ai/2026-04-11-agent-self-evolving-skills
- Blog: Agent Patterns
- Date: 2026-04-10
- Updated: 2026-04-10
- Tags: skill-libraries, self-evolving-agents, security, architecture, production

## Outline

- #The Loop That Learns
- #SAGE and the Reinforcement Learning Angle
- #One in Four Community Skills Has a Vulnerability
- #Building a Trust Pipeline
- #A Pragmatic Middle Ground
- #When This Pattern Will Burn You