ECC 2.2.0

ECC 2.2.0 makes the universal installer a first-class, cross-harness distribution path. It adds native Antigravity 2.0 support, repairs cumulative install ownership, aligns OpenCode with its canonical configuration directory, and strengthens the exact-artifact release gate.

Installer and harness reliability

Antigravity installs natively to .agents/{rules,workflows,skills,agents}. Do not manually rename a legacy .agent directory. Re-run ECC 2.2.0 so the installer can apply its ownership-aware migration rules.
Repeated selective installs retain the complete managed ownership ledger. A later module install no longer causes previously installed ECC files to survive uninstall.
OpenCode home installs use ~/.config/opencode. Reinstall or repair discovers legacy ~/.opencode ownership, migrates unchanged ECC-managed files, and preserves modified files for review. Bundled agent definitions inherit the user's selected model provider.
Legacy Codex sync cleanup requires ownership evidence by default and preserves untracked or modified user files.
Nasiko lifecycle locks recover only when their recorded owner is confirmed dead. Its pinned archive parser rejects malformed boundaries, and incomplete uninstall cleanup returns an error with retained-file guidance.
skill-comply is included in both the install graph and npm archive. Python bytecode and pytest caches remain excluded.

New capabilities

Guided multi-harness setup and stronger doctor, repair, status, and uninstall flows.
Native Antigravity 2.0 documentation for Bash and PowerShell.
Expanded Itô, Nasiko, agent-evaluation, multi-model council, dev-team, living-docs, secure terminal, Pi, and TasteForge workflows.
Improved Plan Canvas, memory vault, continuous learning, skill evolution, hook stability, session handling, and Discord delivery.

Release assurance

The release workflow requires the tagged commit to equal origin/main exactly.
npm registry failures stop the release instead of being treated as an unpublished version.
The exact packed archive is hashed once and exercised on Linux, macOS, and Windows before publication.
The verified npm archive is published before the matching GitHub Release is created. A retry verifies byte-for-byte registry integrity.

Upgrade

Install or update the published package, then run the same ECC install command you used previously:

npm install -g ecc-universal@2.2.0
ecc install --target antigravity --profile full

Use ecc doctor --target <target> after installation. For Antigravity, start a new conversation and verify workspace skills under Settings > Customizations.

Scope audited

The pre-release audit covered the complete delta from v2.1.0: 108 commits, 530 changed files, 40,299 insertions, and 4,679 deletions before the final readiness patch.

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