Prospective Structural Metacognition: computational supplement

Computational supplement to "Prospective Structural Metacognition: A Formal and Computational Theory of Confidence Under Future Change". The package regenerates the quantities reported in the manuscript. These cover the exhaustive enumeration of the argument space and the kernel libraries, the identifiability and conditioning results, the adversarial checks, the permutation null of the audit procedure, the simulations of measurement error and clustering, the planned contrasts, and the five figures. Twenty-one scripts in src/ read the inputs in data/ and write to results/. One of them, verify_final_inventory.py, recomputes the eleven enumeration quantities cited in the main text and exits with an error if any disagrees. It reads only files shipped here. Automatic checks in tests/ cover the same quantities and confirm that the pipeline depends on nothing outside the package. Seeds are fixed integers, stated in the scripts and in README.md. Integrity is verified with sha256sum -c MANIFEST.txt, which covers every file except the manifest itself. No human data were collected and no claim is made about human performance.