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multica/server/internal/daemon/execenv
Bohan Jiang bae8a84abd MUL-2767 feat(agent): add Antigravity runtime backend (#3427)
* feat(agent): add Antigravity runtime backend

Adds Google's Antigravity CLI (`agy`) as the 12th supported coding-tool
runtime, alongside Claude / Codex / Cursor / Copilot / Gemini / Hermes /
Kimi / Kiro / OpenCode / OpenClaw / Pi.

The CLI emits plain assistant text on stdout (no structured event
stream), so the backend streams stdout line-by-line as `MessageText`
events and accumulates the same text as the final `Result.Output`.
Session resumption uses `--conversation <id>`; because the conversation
UUID is not echoed on stdout, the daemon routes `--log-file` to a temp
file and recovers the id from the glog-formatted log lines.

MUL-2767

Co-authored-by: multica-agent <github@multica.ai>

* fix(agent): correct Antigravity capability contract from Elon review

- ModelSelectionSupported now returns false for antigravity. `agy` has no
  --model flag and antigravityBackend deliberately drops opts.Model, so
  the UI must render a disabled "Managed by runtime" picker instead of
  an empty dropdown plus a silently-ignored manual-entry field. Also
  stop seeding AgentEntry.Model from MULTICA_ANTIGRAVITY_MODEL — the
  backend would silently ignore it.

- Antigravity skills now write to {workDir}/.agents/skills/, the CLI's
  native workspace path (inherits Gemini CLI's layout per
  https://antigravity.google/docs/gcli-migration). Previously they went
  to the .agent_context/skills/ fallback that the CLI doesn't scan.
  Runtime brief moves antigravity into the native-discovery branch and
  local_skills.go points the user-level skill root at
  ~/.gemini/antigravity-cli/skills for Runtime → local skill import.

- Doc + UI comment sync: providers matrix / install-agent-runtime /
  cloud-quickstart / agents-create / tasks (session-resume support) /
  skills / README all now list Antigravity in the right buckets, and
  the model-picker / model-dropdown comments cite antigravity (not the
  stale hermes reference) as the supported=false example.

New tests: TestAntigravityModelSelectionUnsupported,
TestInjectRuntimeConfigAntigravity (native discovery wording),
TestWriteContextFilesAntigravityNativeSkills (.agents/skills/ landing,
.agent_context/skills/ NOT written).

Co-authored-by: multica-agent <github@multica.ai>

* feat(provider-logo): swap inline placeholder for real Antigravity PNG

Replaces the hand-drawn planet+arc placeholder with the official asset
shipped from Downloads. Stored next to the component; bundlers
(Next.js / electron-vite) resolve the PNG import to a URL string at
build time. Added a small assets.d.ts so packages/views' tsc accepts
PNG / SVG module imports — there was no prior asset usage in this
package to register the declaration.

---------

Co-authored-by: J <j@multica.ai>
Co-authored-by: multica-agent <github@multica.ai>
2026-05-28 15:40:05 +08:00
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