fix(#3738): antigravity global skills/agents install to ~/.gemini/config (#3921)

* test(#3738): antigravity global skills/agents must resolve under ~/.gemini/config

Regression tests (RED first): --skills-root and gsd-tools query surfaces,
install-plan dest dirs, and converter skills-path rewrite.

* fix(#3738): antigravity global skills/agents install to ~/.gemini/config

Antigravity's machine-local discovery scans ~/.gemini/config/{skills,agents};
the configHome (~/.gemini/antigravity) is deprecated for artifacts. Declare the
ADR-1239 skills/agents 'home' override on the antigravity global layout — the
same mechanism codex uses (.agents) — and divert ~/.claude/skills/ references
in converted global content to ~/.gemini/config/skills/. configHome, settings,
probe/migration semantics, and the local .agents layout are unchanged.

* fix(#3738): retire deprecated configHome artifacts via installer migration 010

Next install converges an existing antigravity install: manifest-managed
skills/gsd-*/ and agents/gsd-*.md under the configHome (a location AGY does
not scan) are removed — modified files backed up first, unmanifested and
non-gsd entries preserved — and now-empty containers retired. Global scope
only; the local .agents surface is live. Docs + inventory updated.

* fix(#3738): converter sync in bin/install.js, harness emit-root coverage, migration baseline

- bin/install.js converter gains the same ~/.claude/skills → ~/.gemini/config/
  rewrite as src (ADR-1508 dual copy must stay in sync).
- Parity-manifest walk covers home-override emit roots (extraEmitRootsFor) so
  antigravity's emitted skills/agents stay differential-visible at their new
  install root; install-tree fixture regen confirms an unchanged key set.
- skills-from-commands rule declares the antigravity converter as a
  runtime-scoped transform; one ack fragment covers the identity-classed
  workflow whose antigravity copy embeds the old skills path.
- Migration 010 checksum baseline + home-override set doc updated; existing
  tests updated to the #3738 contract (global dest, golden parity via layout
  dest, integration expectations).

* fix(#3738): tolerate an absent extra emit root on baseline-side measurement

The base tree's installer predates the home override, so <HOME>/.gemini/config
does not exist there; walk() threw ENOENT and the in-job baseline build failed.
An absent extra root is the legitimate pre-override shape — skip it.

* fix(#3738): review findings — manifest agents root, bare skills-path rewrite, guard comment

- writeManifest resolves the agents-kind home override (_kindDestDirSafe), so
  the manifest records agents at their actual install root and drift detection
  keeps working (isolated review finding 1, major).
- Converter bare forms ~/.claude/skills and $HOME/.claude/skills (no trailing
  slash) divert to ~/.gemini/config/skills instead of falling through to the
  retired configHome path (finding 2).
- real-home-guard comment updated: antigravity's global agents kind is the
  first agents-kind home override (finding 3, doc-only).
- Regression tests for both behavioral findings.

* chore(#3738): changeset fragment (pr number backfilled after PR creation)

* chore(#3738): backfill changeset PR number (3921)

* fix(#3738): sandbox HOME in tests that install antigravity global artifacts

antigravity is the first home-override runtime in the golden-parity and
skills-wrapper suites (codex is not in their runtime lists), so those tests
never needed HOME sandboxing — the real-home guard now (correctly) refuses
their un-sandboxed global installs on CI, where HOME is the passwd home.

* fix(#3738): stop the K3 sequential-sandbox env leak; sandbox L2's home-override plans

K3's two back-to-back sandboxHome calls leave HOME pointing at the first
sandbox once the after-hooks restore (each call saves the env as it found
it, so the second saves the first's sandbox as 'original'). On the windows
matrix that leaked gsd-k3-qwen-* home into the L2 property, whose
antigravity/global run then (correctly) refused via the #3712 real-home
guard — antigravity is the runtime that made L2's plan escape into
os.homedir(). K3 now manages the env with a single restore; L2 sandboxes
HOME per run, mirroring L1.

* fix(#3738): L2 property's HOME sandbox must exist on disk

The #3712 guard's sandbox exemption fails closed when identify(effectiveHome)
is 'absent' — L2 never created its configDir, so on the windows matrix (tmpdir
under the real home) the antigravity/global run refused even with HOME
sandboxed. Create the per-run sandbox dir and clean it up.

---------

Co-authored-by: sim <sim@local>
This commit is contained in:
Tom Boucher
2026-08-27 02:24:03 -04:00
committed by GitHub
parent e20744eacb
commit 39673ae9ff
29 changed files with 936 additions and 55 deletions

View File

@@ -688,7 +688,7 @@ Equivalent paths for other runtimes:
- **Kimi CLI:** first-existing generic global root (`~/.config/agents/` recommended, then `~/.agents/` if its `skills/` directory already exists); local install is deferred and guarded
- **Codex:** `~/.codex/` global or `./.codex/` local
- **Copilot:** `~/.copilot/` global or `./.github/` local
- **Antigravity:** auto-detected global root (`~/.gemini/antigravity/`, `~/.gemini/antigravity-ide/`, or `~/.gemini/antigravity-cli/`) or `./.agent/` local
- **Antigravity:** auto-detected global root (`~/.gemini/antigravity/`, `~/.gemini/antigravity-ide/`, or `~/.gemini/antigravity-cli/`) for settings and runtime files; global skills/agents under `~/.gemini/config/` (the machine-local discovery dir, #3738) or `./.agent/` local
- **Cursor:** `~/.cursor/` global or `./.cursor/` local
- **Windsurf/Devin Desktop:** `~/.codeium/windsurf/` global config or `./.windsurf/` local workflows
- **Augment Code:** `~/.augment/` global or `./.augment/` local
@@ -952,7 +952,7 @@ The migration-specific ownership and source snapshots live in
| Kimi CLI | First-existing generic root: `~/.config/agents` recommended, then `~/.agents` when `~/.agents/skills` exists and `~/.config/agents/skills` does not | Deferred and guarded | `skills/gsd-*/SKILL.md` (flat) invoked as `/skill:gsd-*` | `agents/gsd.yaml`, `agents/gsd.md`, and `agents/subagents/gsd-*` YAML/prompt pairs | Explicit `kimi --agent-file <configRoot>/agents/gsd.yaml`; no GSD hooks or statusline |
| Codex | `~/.codex` | `./.codex` | `skills/gsd-*/SKILL.md` (flat) | `agents/` source markdown plus per-agent TOML (Codex auto-discovers each `agents/gsd-*.toml`; this is the sole canonical role registration, #2406) | `config.toml` bare `[agents]` dispatch-tuning scalar (`max_depth`, no per-role `[agents.gsd-*]` tables), `[features].hooks` (canonical; legacy alias `codex_hooks` is recognized and migrated forward on reinstall, #3566), and hook tables |
| GitHub Copilot | `~/.copilot` | `./.github` | `skills/gsd-*/SKILL.md` (flat), `copilot-instructions.md`, and `AGENTS.md` (repo root, local) | `.agent.md` files | Self-contained `sessionStart` hook (`hooks/gsd-session.json`, inline `command` type); no statusline |
| Antigravity | auto-detected: `~/.gemini/antigravity`, `~/.gemini/antigravity-ide`, or `~/.gemini/antigravity-cli` | `./.agent` | `skills/gsd-*/SKILL.md` (flat, #1614) | `agents/gsd-*.md` | Gemini-style `settings.json` hook entries when installed by GSD |
| Antigravity | auto-detected: `~/.gemini/antigravity`, `~/.gemini/antigravity-ide`, or `~/.gemini/antigravity-cli` | `./.agent` | `~/.gemini/config/skills/gsd-*/SKILL.md` (flat, #1614; global home override #3738) | `~/.gemini/config/agents/gsd-*.md` (#3738) | Gemini-style `settings.json` hook entries when installed by GSD |
| Cursor | `~/.cursor` | `./.cursor` | `skills/gsd-*/SKILL.md` (flat) | `agents/gsd-*.md` | Rule references under `rules/`; `hooks.json` with sessionStart context injection and postToolUse STATE.md monitor (#777) |
| Windsurf | `~/.codeium/windsurf` config | `./.windsurf` | `workflows/gsd-*.md` slash-command workflows | No custom-agent artifact surface | No GSD hooks |
| Augment Code | `~/.augment` | `./.augment` | `skills/gsd-ns-*/SKILL.md` (6 routers) + `skills/gsd-ns-*/skills/<name>/SKILL.md` (nested concretes) | `agents/gsd-*.md` | No GSD hooks or statusline |