* feat(#1928): remove sunset gemini cli runtime, redirect to antigravity
Google sunset Gemini CLI on 2026-06-18; Antigravity CLI is its official successor (already a first-class GSD runtime). Remove the gemini runtime from the enum (16->15), aliases, labels, config-home fragment, install path, converters (convertClaudeToGemini{Markdown,Toml,Agent}, convertSlashCommandsToGeminiMentions), capability descriptor, gemini-extension.json, RULESET.GEMINI.*, and the interactive menu (renumbered, no gap).
--gemini now prints an explicit deprecation notice citing the 2026-06-18 sunset and redirects to --antigravity (no silent alias, per the issue's Hyrum's-Law rejection). Antigravity is preserved throughout: its GEMINI.md contextFileName, .gemini/antigravity config home, the shared convertGeminiToolName/claudeToGeminiTools tool vocabulary, and the 'gemini' hookEvents dialect it declares. GEMINI.md retargeted as Antigravity's context file.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* chore(#1928): backfill changeset PR number (#1996)
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* chore(#1928): drop Gemini CLI from issue templates (review nit)
Removes the sunset Gemini CLI runtime from the two GitHub issue-template
runtime lists that the removal PR missed, per @davesienkowski's review nit:
- feature_request.yml: 'Applicable runtimes' checkbox (a user could otherwise
request a feature for a runtime GSD no longer supports)
- bug_report.yml: 'Runtime' dropdown + the stale ~/.gemini/settings.json
retrieval-help line
Leaves the post-removal templates fully consistent with the Antigravity redirect.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
ADR-1235 step 1: route the trivial-converter runtime group (cursor, windsurf, augment, trae, codebuddy) off the inline install() agent loop onto the descriptor-driven installRuntimeArtifacts path. Establishes the converter-context foundation (pre-converter cross-cutting + no agent-stamp). Agent install output is byte-identical for all 16 runtimes (golden-parity, global + verified local). cline deliberately excluded (local rules-only). Closes#1763.
resolveRuntimeArtifactLayout now builds Layout from
registry.runtimes[id].runtime.artifactLayout[scope] — a loop dispatching each
ArtifactKind through the SAME 5 builders (commandsKind/agentsKind/skillsKind/
convertedCommandsKind/kimiAgentsKind, unchanged) by (kind, converter, nesting) —
replacing the hardcoded switch(runtime). Equivalence-preserving for all 16 runtimes
× {global, local} (Codex-verified, no divergence). -43 LOC; bin/install.js + the
converters + the install loop untouched. getInstallExports()[converterName]
resolution, configDir threading, scope default, unknown-runtime guard all preserved.
Driving the local scope surfaced a 5a gap: the old switch had no scope branch for 13
runtimes (cursor/gemini/codex/copilot/antigravity/windsurf/augment/trae/qwen/hermes/
codebuddy/opencode/kilo) → local == global for them, but 5a authored local:[].
Backfilled local=global for those 13 (descriptor-faithful; a fall-through shim would
wrongly give cline/kimi local=global). claude/cline/kimi scope-gating untouched.
validateArtifactKindEntry tightened: destSubpath/prefix/nesting/converter required
(ConverterName enum still open — 5e). New 39-case deep-equal golden equivalence test.
Closes#1049
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
