Microlensing modeling rung: FSPL with escalation guidance, evidence-gate checkpoints, and default priors.
name roman-modeling-microlensing-fspl description Microlensing modeling rung: FSPL with escalation guidance, evidence-gate checkpoints, and default priors. Roman Modeling Microlensing: FSPL Purpose Escalate when peak morphology suggests finite-source effects. Use This Skill When Current lower-complexity rung leaves structured residual anomalies. Known degeneracies indicate this rung should be tested. Escalation Gate Run this rung only after the previous rung fails anomaly or degeneracy checks. Keep added complexity only if evidence improves enough (use skills/modeling/model-selection/evidence-bic). Default Priors Inherit PSPL priors rho: log-uniform over finite-source-sensitive range Narrower u0 prior when finite-source morphology is present Output Contract Return: status: ok | warning | error summary: fit/evidence verdict artifacts: fit products and diagnostics validation: convergence and residual checks provenance: data paths, seed/config, timestamp