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ADR Tools

A command-line tool for working with a log of Architecture Decision Records (ADRs).

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Quick Start

Install ADR Tools.

Use the adr command to manage ADRs. Try running adr help.

ADRs are stored in a subdirectory of your project as Markdown files. The default directory is doc/adr, but you can specify the directory when you initialise the ADR log.

  1. Create an ADR directory in the root of your project:

     adr init doc/architecture/decisions

    This will create a directory named doc/architecture/decisions containing the first ADR, which records that you are using ADRs to record architectural decisions and links to Michael Nygard's article on the subject.

  2. Create Architecture Decision Records

     adr new Implement as Unix shell scripts

    This will create a new, numbered ADR file and open it in your editor of choice (as specified by the VISUAL or EDITOR environment variable).

    To create a new ADR that supercedes a previous one (ADR 9, for example), use the -s option.

     adr new -s 9 Use Rust for performance-critical functionality

    This will create a new ADR file that is flagged as superceding ADR 9, and changes the status of ADR 9 to indicate that it is superceded by the new ADR. It then opens the new ADR in your editor of choice.

  3. For further information, use the built in help:

     adr help

See the tests for detailed examples.

The decisions for this tool are recorded as architecture decision records in the project repository.