fix(#1441): antigravity resolver prefers GSD-owned dir over first-existing (#1442)

* fix(#1441): antigravity resolver prefers GSD-owned dir over first-existing

resolveConfigHomeFromDescriptor's dot-home-nested probe returned the first
bare-existing candidate, so a CLI user (~/.gemini/antigravity-cli) who also
had the IDE's ~/.gemini/antigravity dir was silently shadowed to the legacy
dir (probed first). Regression from #217 — pre-#217 returned
~/.gemini/antigravity unconditionally.

Add an optional probeMarker (gsd-core/VERSION) to the dot-home-nested
descriptor: a two-pass probe prefers the candidate GSD installed into, then
bare existence, then probe[0]. Behavior is byte-identical when probeMarker is
absent (windsurf etc. unaffected). Adds detectAntigravityDirAmbiguity() for
installer/operator guidance on already-misinstalled users (auto-relocation
ruled out per ADR-0008's single-configDir migration bound).

Regression tests fail before / pass after: coexistence + marker-priority
cases, end-to-end through the registry descriptor.

Claude-Session: https://claude.ai/code/session_01JU2WB23JLE3QTysPXuFJjB

* chore(#1441): add changeset for antigravity resolver fix

Claude-Session: https://claude.ai/code/session_01JU2WB23JLE3QTysPXuFJjB
This commit is contained in:
Rezolv
2026-06-18 21:47:18 -04:00
committed by GitHub
parent 9219af3360
commit dcceb1a004
10 changed files with 439 additions and 7 deletions

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@@ -34,7 +34,7 @@ configHome: {
parent?: string, // for dot-home-nested: e.g. '.gemini' (antigravity), '.codeium' (windsurf)
env: string[], // ordered override env vars, e.g. ['CLAUDE_CONFIG_DIR'] (required; may be empty)
probe?: string[], // ordered candidate subpaths; first existing wins (antigravity, kimi)
probeExists?: string, // if set, select the first probe candidate where <candidate>/<probeExists> exists (kimi: 'skills')
probeExists?: string, // marker sub-path on a probe candidate. generic-agents-root: hard filter (kimi: 'skills'). dot-home-nested: marker-priority preference, then bare-existence fallback (antigravity: 'gsd-core/VERSION', #213/#217) — see amendment below
skillsHome?: { kind, name, ... } // override when the skills dir ≠ config dir (kilo only)
}
```
@@ -48,6 +48,10 @@ This absorbs kilo (`skillsHome` split), kimi & antigravity (`probe`), windsurf (
`configHome` resolution is **pure and read-only** (a first-existing probe; no `mkdirSync` — verified in `runtime-homes.cts`). Any directory creation at install time is the `configFormat` permissions-writer's responsibility (opencode/kilo), never the descriptor-resolution step — so `configHome` carries no `createIfMissing` flag.
#### Amendment — `probeExists` on `dot-home-nested` (#1441, 2026-06-18)
`probeExists` was originally honoured only by `generic-agents-root` (kimi), as a *hard filter*. It is now also honoured by `dot-home-nested`, where it acts as a *preference*: probing first returns the candidate whose `<candidate>/<probeExists>` exists (the dir GSD installed into, marked by `gsd-core/VERSION`), then falls back to the legacy first-bare-existing pass, then `probe[0]`. When `probeExists` is absent the behaviour is byte-identical to the original first-bare-existing probe, so other `dot-home-nested` runtimes (e.g. windsurf, which has no `probe`) are unaffected. This fixes silent misresolution where an active sibling dir (the Antigravity-IDE `~/.gemini/antigravity`) shadowed a CLI install in `~/.gemini/antigravity-cli` — a regression introduced by #217. The existing `probeExists` field name is reused rather than introducing a parallel `probeMarker`, keeping the `configHome` vocabulary closed.
### 2. `configFormat` — the existing closed enum (unchanged)
`settings-json | toml | markdown | markdown-dir | none`. Cursor is `none` (it writes no settings file — its only managed file is the hooks manifest, captured by `hooksSurface`, not `configFormat`). opencode/kilo are `settings-json` with a JSONC **permissions sidecar** expressed by an optional `permissions: 'opencode-jsonc' | 'kilo-jsonc' | 'none'` sub-field (the only two runtimes that write one).

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@@ -138,7 +138,7 @@ Runtime capabilities describe how GSD projects its artefacts onto one host CLI.
| Axis | Field | Type summary |
|---|---|---|
| Config home | `runtime.configHome` | Structured object with `kind` (`dot-home` \| `dot-home-nested` \| `xdg` \| `generic-agents-root`), `name`, optional `parent`, `env[]`, `probe[]`, `probeExists`, `skillsHome`. |
| Config home | `runtime.configHome` | Structured object with `kind` (`dot-home` \| `dot-home-nested` \| `xdg` \| `generic-agents-root`), `name`, optional `parent`, `env[]`, `probe[]`, `probeExists`, `skillsHome`. `probeExists` is an optional sub-path applied to probe candidates: for `generic-agents-root` it is a hard filter (a candidate qualifies only if `<candidate>/<probeExists>` exists); for `dot-home-nested` it is a preference that makes probing pick the candidate GSD owns (e.g. `gsd-core/VERSION`) over a bare-existing sibling before falling back — see ADR-1016 and #213/#217. |
| Config format | `runtime.configFormat` | Closed enum: `settings-json` \| `toml` \| `markdown` \| `markdown-dir` \| `none`. |
| Artefact layout | `runtime.artifactLayout` | Object with `global` and `local` arrays of `ArtifactKind` (`kind`, `destSubpath`, `prefix`, `nesting`, `recursive`, `stage`). |
| Command style | `runtime.commandStyle` | Closed enum: `slash-hyphen` \| `shell-var`. |