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+# Stackchain Library
+
+A minimal Python library for composing ordered CLI toolchains from YAML.
+
+## Install
+
+```
+pip install stackchain
+```
+
+## Usage
+
+```yaml
+# chain.yaml
+steps:
+  - run: lint
+  - run: test
+  - run: build
+```
+
+```bash
+stackchain run chain.yaml
+```
+
+## Config
+
+- `--fail-fast` stops on first non-zero exit (default: false).
+- `--dry-run` prints steps without executing.
+
+## Contributing
+
+PRs welcome. Run `pytest` before opening.