RepoBrain 0.3.0

Antigravity is now RepoBrain 🧠 — same engine, new name. The repository moved to study8677/repobrain (old URLs redirect automatically).

⚠️ Breaking changes

This is a clean-break rename. All functional identifiers changed:

Before	After
ag / ag-ask / ag-refresh / ag-mcp	rb / rb-ask / rb-refresh / rb-mcp
AG_* environment variables	RB_* (e.g. RB_ASK_TIMEOUT_SECONDS)
.antigravity/ knowledge directory	.repobrain/
antigravity-engine / antigravity_engine	repobrain-engine / repobrain_engine
antigravity-cli / ag_cli	repobrain-cli / rb_cli (CLI v2.0.0)
/plugin install antigravity@antigravity	/plugin install repobrain@repobrain
/antigravity:ag-* slash commands	/repobrain:rb-*

Migration

1. Reinstall: pipx install "git+https://github.com/study8677/repobrain.git#subdirectory=engine" (or reinstall the plugin)
2. Update .env: rename AG_* keys to RB_*
3. Re-run rb-refresh --workspace . (old .antigravity/ folders are ignored and can be deleted)

✨ New since 0.2.1

• Local Codex host-runner mode: RB_HOST_RUNNER=codex lets rb-ask run through your local codex login — no API key required (ask-only, experimental)
• Scan-only refresh: RB_REFRESH_SCAN_ONLY=1 builds scan artifacts without an LLM provider
• New brand assets: vector logo and before/after graphic

Verification

• 251 engine + CLI tests pass on Python 3.10/3.11/3.12
• Repository contract check passes

Antigravity 0.2.1

Stage 1 hotfix release.\n\nHighlights:\n- Claude plugin MCP registration uses bundled .mcp.json and plugin-prefixed tool names.\n- ag-mcp reports version 0.2.1 and installer upgrades stale engines.\n- First refresh initializes .antigravity automatically.\n- MCP startup/tool errors are logged privately with secret redaction.\n\nVerification: engine test suite passed locally (172 passed, 1 requests dependency warning).

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Note: the project was renamed to RepoBrain in v0.3.0. The ag-* commands, AG_* env vars, and .antigravity/ directory mentioned above apply to this version only.