SpaceTelescope-GalaxyReductionPipeline

Fix notebook convention violations after a Notebook Reviewer audit. Use when the Notebook Reviewer agent has reported violations and you want to systematically apply fixes: cell structure, import order, placeholder strings, variable naming, directory-check pattern, FITS I/O, or Python style. Edits notebooks in place.

Set up a new galaxy reduction instance from the galred template. Use when creating a new galaxy target repo, configuring placeholder strings, installing conda environments, verifying CRDS setup, and validating notebooks are ready to run. Covers fork, clone, configure, env create, CRDS check, and pre-flight validation.

Step-by-step checklist for running the full 8-step HST galaxy reduction pipeline. Use when starting a pipeline run, resuming after an error, deciding whether to skip step 7 (DrizzledInpainter), or verifying outputs at each stage. Covers pre-flight checks, per-step validation, and common failure recovery.