CLAUDE.md

Read the AGENTS.md file for project context.

Bash: disable colored output

This shell's startup config forces ANSI color codes into command output (e.g. alias ls='command ls --color' always colorizes, even when piped), which clutters tool results with escape sequences like [0m, [32m, [36m. Always suppress color when running Bash commands:

• ls/l/la → add --color=never (e.g. ls --color=never, ls -la --color=never).
• grep/egrep/fgrep → add --color=never (their aliases default to --color=auto).
• General fallback: prefix the command with a backslash to bypass the alias entirely (e.g. \ls, \grep), or pass --color=never to any tool that supports it.

driver.sh: chain new jobs onto an earlier invocation's preprocessing

scripts/driver.sh has no raw --afterok <jobid> flag, but you can chain a later invocation's steps onto jobs an earlier invocation already submitted by pre-setting the job-ID env vars it reads (see driver.sh:253-257): PREP_JOB, GRID_JOB, VEL_JOB, CLO_JOB, DIAGW_JOB, PARTITION_JOB.

When set, downstream steps compute their afterok deps from these instead of resubmitting the preprocessing. Example — reuse an already-submitted grid/vel rebuild for a second run without rebuilding (and without racing on the shared per-experiment grid.jld2):

DIAGW_JOB=169655237.gadi-pbs CLO_JOB=169655236.gadi-pbs \
  GRID_HZ=4 PARENT_MODEL=ACCESS-OM2-1 ADVECTION_SCHEME=weno5 TIMESTEP_MULT=4 \
  JOB_CHAIN=run1yr-run1yrfast bash scripts/driver.sh

Standard runs use VEL_DEP, which the driver derives as DIAGW_JOB:CLO_JOB (falling back to VEL_JOB/GRID_JOB, or PARTITION_JOB for multi-rank). So pre-set whichever upstream jobs the step actually depends on.