Definition
What is the maker-checker pattern?
The maker-checker pattern splits agent work in two: a maker agent produces the work, and a separate checker agent, with different instructions and often a different model, verifies it against the spec and real command output. The maker never declares its own work done.
The pattern exists because language models grade their own homework too generously. An agent that wrote a page will report the page is good; a checker that did not write it re-runs the actual checks and returns PASS or FAIL with evidence. Borrowed from banking’s four-eyes principle, it is the core trust mechanism in agentic marketing: verification is separated from production, and the human only reviews work that already passed a machine check.
Stub · This definition is being expanded with verified examples from shipped systems. Updated .
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