v3.0.0 — portable agent authoring layout

Breaking packaging update: moves canonical skills to .agents/skills, adds byte-identical Claude mirrors and thin Cline workflows, supports the current Antigravity, Codex, Claude, Cline, and Pi paths, and makes usage documentation host-neutral.

Full Changelog: v2.0.0...v3.0.0

v2.0.0 — user-global install model

Breaking: the six skills now install user-global; install.sh/install.ps1 are removed and AGENT-INSTALL.md is the only install path.

• Skills copy to per-user global skill directories (~/.agents/skills/, ~/.claude/skills/, ~/.gemini/config/skills/, ~/.cline/skills/); nothing is written into projects — no bridges, no .gitignore edits.
• The only per-project footprint is the generated agent tests themselves (*.agentic.spec.*, …), which are committed — they are the safety net.
• Cursor supported: discovers the ~/.agents/skills/ copies natively.

Migration from v1 project-scoped installs: re-run the install prompt once per user; stale gitignored project adapters can be removed manually.

v1.0.0 — universal Agent Skills release

First tagged release.

Highlights

• Six portable Agent Skills under skills/shared/ for Codex, Claude Code, Google Antigravity, and Cline: agentic-unit-test, agentic-mutation-check, agentic-refactor, agentic-test-update, and the newly skill-ified agentic-coverage-report and agentic-test-clean (previously Cline-only workflows).
• Installers — tarball-based install.sh / install.ps1 copy the skills to .agents/skills/ and .claude/skills/, add conditional AGENTS.md / CLAUDE.md pointers, and gitignore the installed copies.
• AGENT-INSTALL.md — preferred, merge-aware agent-guided install (see README prompt).
• Cline .clinerules/workflows/ shortcuts retired; each skill is invocable as /agentic-* in Claude Code / Antigravity / Cline, via $ mention in Codex, or implicitly by description.

The test-generation guarantees are unchanged: main code and user tests are read-only, coverage is measured on agent tests alone, and every generated test passes a flakiness gate.