CosmoSIS Parameter Estimator Purpose Provides expert guidance on CosmoSIS for cosmological parameter estimation, including modular likelihood construction and MCMC sampling. Capabilities - Modular likelihood construction - Multiple sampler support (emcee, multinest, polychord) - Prior specification - Chain analysis and diagnostics - Plotting and visualization - Pipeline construction Usage Guidelines 1. Pipeline Setup : Configure modular analysis pipeline 2. Likelihoods : Build likelihood functions from data 3. Priors : Specify parameter priors 4. Sampling : Run MCMC with appropriate sampler 5…