Add License Header

Add the project's canonical SPDX license header to source files that don't already have one. Use when asked to add a license header to a file or directory of files.

sociotechnica-org Updated

File contents

Add License Header

Procedure

  1. Identify target files from the user's request -- either a single path or all source files under a given directory.

  2. For each target file, read its first 20 lines and check whether the string SPDX-License-Identifier is already present.

  3. If the header is already present, skip that file. Never add a second header to a file that already has one.

  4. If no header is present, insert this exact two-line header at line 1 of the file -- above all existing content, including shebangs, comments, or blank lines:

    // SPDX-License-Identifier: Apache-2.0
    // Copyright (c) 2026 Acme Corp
    
  5. After processing all files, report which files were changed and which were skipped (already had a header).

Constraints

  • Never duplicate a header. If SPDX-License-Identifier already appears in the first 20 lines, the file is considered done -- do not touch it.
  • Always insert at the very top. The header must be the first content in the file, above any shebang (#!), existing comment, or code. Do not place it after existing content.

sociotechnica-org/skillmaker-studio/tree/main/skills/william-draft-skill-md/runs/c4c8cd44-53b5-43ba-affa-b27ba7e1f45b/artifacts/output commit 30eeff012b

Frequently asked questions

npx skillmds@latest add sociotechnica-org/add-license-header-4