{
    schema_version = 1;
    name = "coder-review";
    initial = "implement";

    states = {
        implement = {
            instructions = "Implement the requested Ticket scope, run the narrow and dependent validation required by the changed contracts, and record the concrete repository/test evidence. When the implementation is ready for independent review, request a Flow transition.";
            transitions = {
                review = {
                    target = "review";
                    condition = "The requested implementation is present, the relevant validation has completed, and there is enough bounded repository and session evidence for an independent Reviewer to evaluate the change.";
                };
            };
        };

        review = {
            instructions = "Spawn one independent Reviewer SubWorker with bounded Ticket, repository, diff, and validation context. Read its committed review through worker observation. Do not review your own implementation or treat a prose status as approval. After the Reviewer returns a typed approval or concrete requested changes, request a Flow transition.";
            transitions = {
                approved = {
                    target = "done";
                    condition = "The latest independent Reviewer attempt for the current implementation completed and approved it, with no later unresolved request_changes finding.";
                };
                changes_requested = {
                    target = "fix";
                    condition = "The latest independent Reviewer attempt for the current implementation requested one or more concrete changes that remain unresolved.";
                };
            };
        };

        fix = {
            instructions = "Resolve every open Reviewer finding, rerun the validation affected by the fixes, and preserve concrete evidence. Do not claim approval from the prior request_changes review. When the corrected implementation is ready for a new independent review, request a Flow transition.";
            transitions = {
                review = {
                    target = "review";
                    condition = "Every finding from the latest request_changes review has been addressed with relevant validation evidence, and the corrected implementation is ready for a fresh independent Reviewer attempt.";
                };
            };
        };

        done = {
            instructions = "The Coder implementation and independent review loop is complete.";
            terminal = true;
        };
    };
}