SPDX license headers#
The hard rule lives in AGENTS.md: every new source file gets the SPDX
header at the top. This file documents comment-style choices and edge cases.
The header#
SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
SPDX-License-Identifier: Apache-2.0
Files to skip#
Skip files that can’t carry comments or aren’t ours to license: LICENSE,
*.json, *.resolved, Gradle *.lockfile, binary assets (e.g. *.gif), .gitkeep markers,
Xcode-managed files (*.pbxproj, *.xcworkspacedata), and third-party Gradle
wrapper files (gradlew, gradlew.bat, gradle/wrapper/gradle-wrapper.properties).
Enforcement#
Enforced locally by .github/scripts/check_spdx_headers.py, wired into
.pre-commit-config.yaml. Run pre-commit install once after cloning to
enable it; python3 .github/scripts/check_spdx_headers.py audits the whole
tree at any time. The same check runs in CI as a backstop:
.github/workflows/spdx.yml.
Comment style by file type#
Use the comment syntax for the file’s language and place the header before any other content, with one blank line separating it from the body:
Style
Used for
# ….py,.yaml/.yml,.toml,.properties,.sh,.pro,.gitignore,.gitattributes,requirements.txt// ….swift,.kt/.kts,.js,.ts/.tsx<!-- … -->.xml,.html,.plist,.entitlements,.mdInsert the header after these required first-line directives when present:
#!/...shebangs,<?xml …?>declarations,<!DOCTYPE …>, and Swift’s// swift-tools-version:directive.In files that must open with YAML frontmatter (e.g.
SKILL.md), the header goes immediately after the closing---. The checker accepts this, but its--fixmode does not recognize frontmatter and would insert above it, so add the header by hand in such files.