v0.5.1

[0.5.1] - 2026-06-27

Bug Fixes

• (PI-526) Gate concern-decoupled skills (save_memory/status/session_summary) (#527)
• (PI-535) Harden never-clobber + idempotence in emission layer (#536)
• (PI-537) Post-dogfooding hardening batch (8 bugs) (#538)

Documentation

• (PI-521) Discoverability quick-wins (#522)
• (PI-533) Document add/remove/purge/export concern commands (#534)

Features

• (PI-528) Concern add/remove subcommands (engine + toggle concerns) (#529)
• (PI-531) Remove --purge / --export for concern source data (#532)

Miscellaneous Tasks

• (PI-539) Release v0.5.1 — version bump, docs renewal, contributor onboarding (#540)

Testing

• (PI-524) Compose-over-X interop tests (never-clobber overlay) (#530)