feat(workflow): custom per-tile function via method: custom - #33
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Let users plug their own segmentation function without editing the
package: `method: "custom"` imports `cfg.custom.{module,function}` and
forwards optional kwargs. The module just needs to be importable on the
cluster (a file in workflow/scripts/, on PYTHONPATH, or pip-installed).
Document the function contract, the import options and the cluster
checklist (env deps, offline prefetch) in the guide.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Summary
Run your own per-tile function on the cluster without touching the package:
build_fnimports the module/function and forwardskwargs. Everything else — tiling, halos, zarr-native merge, resume, per-tile logs — is unchanged.fetch_modelno-ops for non-Cellpose methods.New guide section documents the function contract, the three ways to make the module importable, and a cluster checklist (env deps, offline weight prefetch).
Test
Added a throwaway
scripts/my_seg.py, ranmethod: customend-to-end → 13/13, labels written, prefetch skipped. Removed the throwaway before commit.🤖 Generated with Claude Code