Agent Skills 0.6.6 is primarily a fix release. It restores the four agent personas that were silently not loading on the Claude Code plugin, and rounds out the ecosystem-neutral pass and the performance-optimization workflow.
Highlights
- The four personas load again on Claude Code (#449, reported by @ingnicolaboccato-lab). The explicit
agentsarray in.claude-plugin/plugin.jsonwas suppressing Claude Code's own discovery ofagents/*.md, socode-reviewer,security-auditor,test-engineer, andweb-performance-auditorwere loading for nobody on the plugin. Removing the key restores all four. Reproduced and verified on Claude Code 2.1.219:Agents (0)before,Agents (4)after. If you installed the plugin, update to pick this up. Scoped to the Claude Code manifest; the Codex manifest is unchanged. - Verify step for performance work (#403, @asiridalugoda).
performance-optimizationgains an explicit keep-or-revert step: re-measure the same way you took the baseline, and if the change is within noise or fails its tests, revert it. Neutral is a revert, not a keep. It also adds a short ledger so a reverted optimization does not get silently retried later. - Ecosystem-neutral pass completed (#425, @ayobamiseun). Phase 2 of #404 extends the work started in 0.6.5 across the rest of the catalog: skills describe the repository's own test, build, and audit commands with one concrete example, rather than hardcoding
npm, so the guidance reads correctly on Python, Go, Rust, and the rest.
Tooling and fixes
- Regression coverage for the command validator, locking down command-parity behavior after the recent validator churn (#443, @ayobamiseun).
- Document the per-skill reference limitation from #361, so anyone installing a single skill knows the repo-level
references/directory does not travel with it (#442, @ayobamiseun).
Thanks
Thanks to everyone who contributed this release: @ingnicolaboccato-lab, @asiridalugoda, and @ayobamiseun.
Full Changelog: 0.6.5...0.6.6