Fold all antigravity literal branches into descriptor-driven reads: getConfigDirFromHome (→ configHome.kind 'dot-home-nested'), projectLocalHookPrefix (→ hostBehaviors.hookPathStyle 'raw'), applyAgentPathRewrites (→ noPathRewrite), getProjectInstructionFile (→ projectInstructionFile 'GEMINI.md'); removed the dead inline convertClaudeAgentToAntigravityAgent branch + dead isAntigravity destructures (antigravity is already on the descriptor-agents path). subagentToolkit flipped undocumented→full (Context7: antigravity.google/docs/cli/features); namedDispatch/nested/maxDepth/backgroundDispatch stay undocumented. Byte-identical golden parity for all 16 runtimes. UPGRADE 1 (permission-writer): permissionWriter 'antigravity' + configureAntigravityPermissions merges a scoped permissions.allow block (GSD's own tree + hooks) into Antigravity's settings.json — non-destructive, idempotent, symmetric uninstall. Added to VALID_PERMISSION_WRITERS + the FinishPermissionWriter union. UPGRADE 2 (MCP companion): configureAntigravityMcpConfig writes mcp_config.json registering the gsd-core companion MCP server (Gemini-successor mcpServers schema, best-effort — raw schema unpublished). Both writers dispatch from finishInstall. settings.json is golden-excluded (HOOK_CONFIG_FILES); mcp_config.json (portable, no absolute paths) is golden-tracked → only antigravity.json changes. Tests: declarative-reference-antigravity extended (source-grep guard across 4 modules, fail-closed for the 4 undocumented sub-axes, validator acceptance) + antigravity-upgrades (permission-writer + mcp_config live-install, idempotency, user-preservation). Matrix + ADR-1016 + capability-manifest + CONTEXT.md + connect-gsd-mcp-server docs updated; changeset (Changed). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Changeset Fragments
This directory holds per-PR CHANGELOG fragments. Every PR with user-facing changes drops one (or more) <random-name>.md files here describing its CHANGELOG entry. Fragments are consolidated into the top-level CHANGELOG.md at release time.
Why
Two PRs that both edit the ### Fixed block of CHANGELOG.md always conflict on merge — git can't pick a serialization order without human input. Two PRs that each add a fresh .changeset/<unique-name>.md never conflict because they don't share lines.
See #2975 for the full rationale.
Adding a fragment
node scripts/changeset/new.cjs \
--type Fixed \
--pr 1234 \
--body "fix the thing — explain the user-visible change in one sentence"
This writes .changeset/<adjective>-<noun>-<noun>.md with frontmatter and a body. Three random words → concurrent PRs don't collide.
Format
---
type: Fixed
pr: 1234
---
**`/gsd-foo` no longer drops trailing slashes** — explain the user-visible change.
Allowed type: values follow Keep a Changelog: Added, Changed, Deprecated, Removed, Fixed, Security.
Opting out
PRs that legitimately have no user-facing impact can add the no-changelog label. CI honors it. When unsure, add the fragment.
At release time
Promotion is automatic. The release workflow's finalize job runs:
node scripts/changeset/cli.cjs render --version vX.Y.Z --date YYYY-MM-DD --allow-empty
This reads every fragment, groups bullets by type:, replaces ## [Unreleased] with a new ## [vX.Y.Z] - YYYY-MM-DD block, opens a fresh ## [Unreleased] above, and deletes consumed fragments. The --allow-empty flag ensures a no-change release still gets a dated heading (with a _No notable changes._ placeholder). A subsequent verify step confirms the promotion landed correctly. Maintainers do not run this by hand.
Archived fragments
.changeset/archived/ holds fragments for already-shipped releases (≤ 1.3.1), retained for provenance. Their content was hand-curated into the dated ## [1.x.y] sections of CHANGELOG.md during the #690 backfill — they were never consumed by render. All changeset tooling enumerates .changeset/ non-recursively, so archived fragments are never picked up or rendered. Do not move them back to the top level.