# Design Notes

Design notes record current cross-cutting contracts and active work that affects
module behavior, pipeline metadata, and compatibility. Completed implementation
plans are retained separately as historical records; they are not the current
source of truth when they differ from runtime code or maintainer documentation.

## Current contracts and active work

```{toctree}
:maxdepth: 1

documentation-architecture
capillary-self-absorption
pixel-unit-removal
tiled-io-upgrade
chunked-operation
chunked-sink-implementation-plan
chunked-beamline-validation
external-parallel-runner
pipeline-operations-backlog
pipeline-foreach-expansion
```

## Completed documentation implementation record

```{toctree}
:maxdepth: 1

documentation-refactor-implementation-plan
```

## Completed design records

```{toctree}
:maxdepth: 1

completed/index
```