Add Claude Code developer skills for project contributors

[clavery]

Summary

Note: Cursor has beta support for skills: https://cursor.com/docs/context/skills but the AGENTS.md file has hard links to them in the meantime which should provide backwards compatibility for cursor until this makes it's way to the stable channel

• Adds 4 Claude Code skills in .claude/skills/ for project contributors:

  • cli-command-development: Creating CLI commands/topics with oclif, base classes, flags, i18n, table output
  • sdk-module-development: Adding SDK modules, barrel files, package.json exports, development conditions
  • testing: Mocha/Chai patterns, MSW HTTP mocking, MockAuthStrategy, test organization
  • documentation: User guides, CLI reference, API docs via TypeDoc, Vitepress config

• Slims down AGENTS.md (CLAUDE.md) from ~184 lines to ~77 lines by moving detailed patterns into skills and linking to them

• Adds b2c-dx-mcp package to project overview

Test plan

• Verify skills load correctly with Claude Code /context command
• Confirm markdown links in AGENTS.md resolve correctly
• Test that skill frontmatter is valid

🤖 Generated with Claude Code

[jlbruno]

Just a note that as of the latest VS Code release they also support agent skills.
https://code.visualstudio.com/docs/copilot/customization/agent-skills

[clavery]

Just a note that as of the latest VS Code release they also support agent skills. https://code.visualstudio.com/docs/copilot/customization/agent-skills

Nice. Yeah most tools seem to be on board at least in a "beta channel": https://agentskills.io/home#adoption

I'm going to test with VS Code/copilot then since I'm locked to Cursor's stable channel at work.