# Aspell Processor
## Purpose
Checks spelling in Markdown files using [aspell](http://aspell.net/).
## How It Works
Discovers `.md` files in the project and runs `aspell` on each file using the
configured aspell configuration file. A non-zero exit code fails the product.
## Source Files
- Input: `**/*.md`
- Output: none (checker)
## Configuration
```toml
[processor.aspell]
command = "aspell" # The aspell command to run
conf = ".aspell.conf" # Aspell configuration file
args = [] # Additional arguments to pass to aspell
dep_inputs = [] # Additional files that trigger rebuilds when changed
```
| `command` | string | `"aspell"` | The aspell executable to run |
| `conf` | string | `".aspell.conf"` | Aspell configuration file |
| `args` | string[] | `[]` | Extra arguments passed to aspell |
| `dep_inputs` | string[] | `[]` | Extra files whose changes trigger rebuilds |
## Batch support
The tool accepts multiple files on the command line. When batching is enabled (default), rsconstruct passes all files in a single invocation for better performance.
## Clean behavior
This processor is a Checker — `rsconstruct clean outputs` is a no-op for it (checkers produce no outputs). See [Clean behavior](../processors.md#clean-behavior) and [`rsconstruct clean`](../commands.md#rsconstruct-clean).