skills_lint 0.5.2

A static analysis linter for Agent Skills (SKILL.md) written in Dart. Validates frontmatter, naming, paths, and structure for use in CI and pre-commit hooks.

0.5.2

• Added programmatic YAML serialization support across configuration models, allowing configurations to be generated and formatted back into YAML.
• Added ConfigParser.parse() to support parsing configuration YAML directly from in-memory strings.
• Added the published-skill-name lint rule to validate that published skills in a Dart package's skills/ directory follow the package naming convention required by package:skills.
• Behavior change: directories, individual_skills, and ignore_file paths now resolve relative to the configuration file that declares them rather than the current working directory. Configurations read from a different directory than the linter runs in must be rewritten: a tool/skills_lint.yaml invoked from the repository root needs "../.agents/skills" where it previously had ".agents/skills".
• Added sourcePath and baseDirectory parameters to ConfigParser.parse() to select the directory that in-memory configuration paths resolve against.
• Recorded --generate-baseline ignore entries with file names relative to the skill directory, naming the skill directory itself ., so a committed baseline matches on any machine and from any working directory. Entries written by earlier versions keep matching.
• Recorded the path and ignore_file text that each parsed configuration target was declared with, and emitted that text when serializing, so a configuration read from a file and written back keeps the paths its author wrote.
• Added --format=sarif and --format=json CLI options to emit validation results as standard OASIS SARIF 2.1.0 JSON documents or raw JSON arrays for CI and GitHub Code Scanning integration (#10).
• Attached the skills_lint internal error: prefix to operational failure notices on standard error (such as I/O errors, rename collisions, or baseline format errors) to distinguish tool execution errors from skill validation diagnostics.
• Fixed CLI usage output to correctly print to standard error when triggered by an argument parsing error, while --help continues to print to standard output.
• Fixed --fix for absolute-paths rule to preserve optional markdown link titles when rewriting absolute paths to relative paths.
• Fixed name-format and published-skill-name auto-fixing to safely handle empty or null frontmatter name fields without corrupting YAML delimiters or scalar spans.
• Exported MissingDefaultsException, which validateSkills already threw when no skill directories, individual skill paths, or configuration targets were supplied and no default location existed. Callers can now catch it by name instead of inspecting runtimeType.

0.5.1

• Migrated developer setup, integration recipes, and documentation to use dart install skills@^1.0.0 and dart install skills_lint.
• Removed legacy npm-based tooling artifacts (.npmrc and skills-lock.json).