# ECC v2.2.0 — ECC 2.2.0: Guided Setup, Antigravity 2.0, and the Nasiko CLI Bridge

- Product: ECC (https://whatsnew.fyi/product/ecc)
- Vendor: affaan-m
- Date: 2026-08-28
- Version: v2.2.0
- Original notes: https://github.com/affaan-m/ECC/releases/tag/v2.2.0
- Permalink: https://whatsnew.fyi/product/ecc/releases/v2.2.0

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

---

- **added** — Add guided installer for Claude Code, Codex, and Kimi harnesses
- **added** — Add native Antigravity 2.0 support with installation to .agents/{rules,workflows,skills,agents}
- **added** — Add experimental, opt-in Nasiko CLI lifecycle bridge for inspecting, installing, and removing Nasiko v0.1.0
- **added** — Add 68 agents, 286 skills, and 94 command shims in the shipped distribution
- **added** — Add Pi, Itô, agent evaluation, multi-model council, dev-team, living docs, secure terminal, TasteForge, and skill-comply workflows
- **changed** — Improve installer to check every selected harness before writing files and apply setup as one operation
- **changed** — Improve release pipeline to require the exact npm archive to pass lifecycle tests on Linux, macOS, and Windows before latest tag moves
- **changed** — Improve uninstall reliability by maintaining a complete ownership ledger for selective installs
- **changed** — Improve migrations by preserving edited or untracked files during cleanup for OpenCode and Codex
- **fixed** — Fix legacy Antigravity ownership migration during installation
- **security** — Add SHA-256 verification for Nasiko CLI downloads

ECC 2.2 is here, led by one guided installer for Claude Code, Codex, and Kimi.
It also adds native Antigravity 2.0 support and an experimental, opt-in Nasiko
CLI lifecycle bridge.

The release pipeline is stricter too: the exact npm archive must pass lifecycle
tests on Linux, macOS, and Windows before `latest` moves.

##### One guided path into ECC

![ECC 2.2 terminal welcome after a successful install](https://github.com/affaan-m/ECC/releases/download/v2.2.0/ecc-cli-install-banner.png)

Start the guided installer with:

```bash
npx --yes ecc-universal@2.2.0 install --guided
```

The installer checks every selected harness before writing files, then applies
the setup as one operation. Provider-owned model and authentication settings
stay under the provider's control. The terminal welcome appears only after a
successful interactive install.

##### Nasiko: experimental, opt-in, and explicit

![Nasiko's open-source agent dashboard, shown as product context for the ECC CLI lifecycle bridge](https://github.com/affaan-m/ECC/releases/download/v2.2.0/nasiko-control-pane.png)

ECC 2.2 can inspect, install, and remove one pinned Nasiko `v0.1.0` CLI build:

```bash
npm install -g ecc-universal@2.2.0
ecc nasiko status --json
ecc nasiko install --version v0.1.0 --dry-run --json
ecc nasiko install --version v0.1.0 --yes --json
```

Downloads are content-addressed and SHA-256 verified, status is read-only, and
uninstall protects modified or unqualified binaries. The dashboard above is
Nasiko's own product. ECC does not connect agents, start a server, enable
telemetry, share data, or operate that control plane. The bridge remains
experimental and opt-in.

Learn more in the [Nasiko repository](https://github.com/Nasiko-Labs/nasiko).

##### More reliable across every harness

- **Native Antigravity 2.0:** ECC installs to
  `.agents/{rules,workflows,skills,agents}` and safely migrates legacy ownership.
- **Reliable uninstall:** repeated selective installs keep a complete ownership
  ledger, so unchanged ECC-managed files can be removed cleanly.
- **Safer migrations:** OpenCode uses `~/.config/opencode`, while OpenCode and
  Codex preserve edited or untracked files during cleanup.
- **More workflows:** Pi, Itô, agent evaluation, multi-model council, dev-team,
  living docs, secure terminal, TasteForge, and `skill-comply` all expand the
  shipped distribution.

ECC 2.2 ships **68 agents, 286 skills, and 94 command shims**, plus the rules,
hooks, memory, continuous-learning, and installation surfaces around them.

##### Release assurance

The tagged commit must match `origin/main`. One npm archive is packed, hashed,
and tested on all three operating systems, then published under a staging tag.
Registry integrity must match before `latest` moves. The prior 2.1.0 package
remains the immediate rollback target.

##### Install or upgrade

For the native Claude Code plugin:

```text
/plugin marketplace add https://github.com/affaan-m/ECC
/plugin install ecc@ecc
```

Existing Claude installs can run `/plugin update ecc`.

##### Thank you

A special thank you to returning contributors
[@gaurav0107](https://github.com/gaurav0107),
[@Seekers2001](https://github.com/Seekers2001), and
[@t0kubetsu](https://github.com/t0kubetsu) for substantial work on learning
workflows, collaborative skills, and shared testing.

Among our first-time contributors,
[@renan-tiberio](https://github.com/affaan-m/ECC/pull/2759) brought Pi support,
[@romanclaudersoai1](https://github.com/affaan-m/ECC/pull/2664) repaired
`/evolve`, and
[@djpjronline-netizen](https://github.com/affaan-m/ECC/pull/2405) hardened hook
parsing.

Eighteen people made their first ECC contribution in 2.2. Thank you to everyone
who tested the installer, reported issues, and helped harden the release across
harnesses and operating systems.

###### New contributors

- @AlbertChiu777 in [#2483](https://github.com/affa

_[Truncated at 4000 characters — full notes: https://github.com/affaan-m/ECC/releases/tag/v2.2.0]_