feat: add agy (Antigravity CLI) as a supported --cli provider

.gitignore

@@ -1,5 +1,6 @@
 node_modules
 .clawpatch/
+.antigravitycli/
 dist
 dist-bun
 *.bun-build

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+### Features
+
+- Add Antigravity CLI (`agy`) as a supported CLI provider. (#231, thanks @yetmike)
+
 ### Fixes
 
 - Chrome extension: abort stale side-panel summary streams on tab changes so delayed output from a closed or replaced tab cannot render under the new page title.

README.md

@@ -331,7 +331,7 @@ Use `summarize --help` or `summarize help` for the full help text.
 - `--length short|medium|long|xl|xxl|s|m|l|<chars>`
 - `--language, --lang <language>`: output language (`auto` = match source)
 - `--max-output-tokens <count>`: hard cap for LLM output tokens
-- `--cli [provider]`: use a CLI provider (`--model cli/<provider>`). Supports `claude`, `gemini`, `codex`, `agent`, `openclaw`, `opencode`. If omitted, uses auto selection with CLI enabled.
+- `--cli [provider]`: use a CLI provider (`--model cli/<provider>`). Supports `claude`, `gemini`, `codex`, `agent`, `openclaw`, `opencode`, `agy`. If omitted, uses auto selection with CLI enabled.
 - `--stream auto|on|off`: stream LLM output (`auto` = TTY only; disabled in `--json` mode)
 - `--plain`: keep raw output (no ANSI/OSC Markdown rendering)
 - `--no-color`: disable ANSI colors
@@ -353,7 +353,7 @@ Use `summarize --help` or `summarize help` for the full help text.
 - `--verbose`: debug/diagnostics on stderr
 - `--metrics off|on|detailed`: metrics output (default `on`)
 
-### Coding CLIs (Codex, Claude, Gemini, Agent, OpenClaw, OpenCode)
+### Coding CLIs (Codex, Claude, Gemini, Agent, OpenClaw, OpenCode, Antigravity)
 
 Summarize can use common coding CLIs as local model backends:
 
@@ -363,15 +363,16 @@ Summarize can use common coding CLIs as local model backends:
 - `agent` (Cursor Agent CLI) -> `--cli agent` / `--model cli/agent/<model>`
 - `openclaw` -> `--cli openclaw` / `--model cli/openclaw/<model>` or `--model openclaw/<model>`
 - `opencode` -> `--cli opencode` / `--model cli/opencode/<model>` (`--model cli/opencode` uses the OpenCode runtime default)
+- `agy` (Antigravity CLI) -> `--cli agy` / `--model cli/agy` (uses agy's active session model; per-call model selection is not supported by agy print mode)
 
 Built-in preset:
 
 - `--model codex-fast` runs Codex with GPT-5.5 Fast mode and requires `codex login`.
 
 Requirements:
 
-- Binary installed and on `PATH` (or set `CODEX_PATH`, `CLAUDE_PATH`, `GEMINI_PATH`, `AGENT_PATH`, `OPENCLAW_PATH`, `OPENCODE_PATH`)
-- Provider authenticated (`codex login`, `claude auth`, `gemini` login flow, `agent login` or `CURSOR_API_KEY`, `opencode auth login`)
+- Binary installed and on `PATH` (or set `CODEX_PATH`, `CLAUDE_PATH`, `GEMINI_PATH`, `AGENT_PATH`, `OPENCLAW_PATH`, `OPENCODE_PATH`, `AGY_PATH`)
+- Provider authenticated (`codex login`, `claude auth`, `gemini` login flow, `agent login` or `CURSOR_API_KEY`, `opencode auth login`, `agy` login flow or `ANTIGRAVITY_API_KEY`)
 
 Quick smoke test:
 
@@ -384,13 +385,14 @@ summarize --cli gemini --plain --timeout 2m /tmp/summarize-cli-smoke.txt
 summarize --cli agent --plain --timeout 2m /tmp/summarize-cli-smoke.txt
 summarize --cli openclaw --plain --timeout 2m /tmp/summarize-cli-smoke.txt
 summarize --cli opencode --plain --timeout 2m /tmp/summarize-cli-smoke.txt
+summarize --cli agy --plain --timeout 2m /tmp/summarize-cli-smoke.txt
 ```
 
 Set explicit CLI allowlist/order:
 
 ```json
 {
-  "cli": { "enabled": ["codex", "claude", "gemini", "agent", "openclaw", "opencode"] }
+  "cli": { "enabled": ["codex", "claude", "gemini", "agent", "openclaw", "opencode", "agy"] }
 }
 ```
 

apps/chrome-extension/src/lib/settings.ts

@@ -151,7 +151,8 @@ function normalizeAutoCliOrder(value: unknown): string {
       item !== "agent" &&
       item !== "openclaw" &&
       item !== "opencode" &&
-      item !== "copilot"
+      item !== "copilot" &&
+      item !== "agy"
     ) {
       continue;
     }

docs/README.md

@@ -6,7 +6,7 @@ summary: "Docs index for summarize behaviors and modes."
 
 - `docs/chrome-extension.md` — Chrome side panel extension + daemon setup/troubleshooting
 - `docs/cache.md` — cache design + config (SQLite)
-- `docs/cli.md` — CLI models (Claude/Codex/Gemini/Agent/OpenClaw/OpenCode/Copilot)
+- `docs/cli.md` — CLI models (Claude/Codex/Gemini/Agent/OpenClaw/OpenCode/Copilot/Antigravity)
 - `docs/config.md` — config file location, precedence, and schema
 - `docs/extract-only.md` — extract mode (no summary LLM call)
 - `docs/firecrawl.md` — Firecrawl mode + API key

docs/cli.md

@@ -1,14 +1,14 @@
 ---
 title: "CLI providers"
 kicker: "models"
-summary: "CLI model providers and config for Claude, Codex, Gemini, Cursor Agent, OpenClaw, OpenCode, and GitHub Copilot."
+summary: "CLI model providers and config for Claude, Codex, Gemini, Cursor Agent, OpenClaw, OpenCode, GitHub Copilot, and Antigravity."
 read_when:
   - "When changing CLI model integration."
 ---
 
 # CLI models
 
-Summarize can use installed CLIs (Claude, Codex, Gemini, Cursor Agent, OpenClaw, OpenCode, GitHub Copilot) as local model backends.
+Summarize can use installed CLIs (Claude, Codex, Gemini, Cursor Agent, OpenClaw, OpenCode, GitHub Copilot, Antigravity) as local model backends.
 
 ## Model ids
 
@@ -22,8 +22,10 @@ Summarize can use installed CLIs (Claude, Codex, Gemini, Cursor Agent, OpenClaw,
 - `cli/opencode` (use the OpenCode runtime default model)
 - `cli/copilot/<model>` (e.g. `cli/copilot/gpt-5.2`)
 - `cli/copilot` (use the Copilot CLI runtime default model)
+- `cli/agy` (use the Antigravity CLI active session model)
 
 Use `--cli [provider]` (case-insensitive) for the provider default, or `--model cli/<provider>/<model>` to pin a model.
+Antigravity does not support per-call model selection in print mode, so use `cli/agy` without a model suffix.
 If `--cli` is provided without a provider, auto selection is used with CLI enabled.
 
 Codex GPT Fast:
@@ -100,13 +102,14 @@ path-based prompt and enables the required tool flags:
 - Agent: uses built-in file tools in `agent --print` mode (no extra flags)
 - OpenCode: `opencode run --format json ... --file <path>` when a file/image path is required
 - Copilot: `copilot -p <prompt>`; passes `--model <model>` when one is configured
+- Antigravity: `agy --print`; does not auto-approve tools for attachment prompts
 
 ## Config
 
 ```json
 {
   "cli": {
-    "enabled": ["claude", "gemini", "codex", "agent", "openclaw", "opencode", "copilot"],
+    "enabled": ["claude", "gemini", "codex", "agent", "openclaw", "opencode", "copilot", "agy"],
     "autoFallback": {
       "enabled": true,
       "onlyWhenNoApiKeys": true,
@@ -132,6 +135,9 @@ path-based prompt and enables the required tool flags:
     },
     "copilot": {
       "binary": "/usr/local/bin/copilot"
+    },
+    "agy": {
+      "binary": "/usr/local/bin/agy"
     }
   }
 }
@@ -142,6 +148,8 @@ Notes:
 - CLI output is treated as text only (no token accounting).
 - If a CLI call fails, auto mode falls back to the next candidate.
 - Cursor Agent CLI uses the `agent` binary and relies on Cursor CLI auth (login or `CURSOR_API_KEY`).
+- Antigravity CLI uses the active agy session model; `cli.agy.model` is ignored by runtime selection.
+- Antigravity normal text summaries run `agy --print` with no prompt argument in a temporary cwd with `--sandbox`, streaming the prompt over stdin so extracted content is not exposed in argv. Attachment prompts keep the caller cwd so agy can inspect the requested path but do not auto-approve tools.
 - Codex CLI normal text summaries run isolated by default: `codex exec --ephemeral --ignore-user-config --ignore-rules -C <temp-dir> ...` with a sanitized temporary `CODEX_HOME` that carries auth only. Set `cli.codex.isolated` to `false` only when you intentionally need Codex to inherit local config/rules.
 - Gemini CLI is invoked in headless mode with `--prompt` for compatibility with current Gemini CLI releases.
 - OpenClaw uses `openclaw agent --agent <model> --message <prompt> --json` because current OpenClaw requires `-m/--message`; very large extracted inputs are rejected before launch to avoid argv limits.

docs/config.md

@@ -361,7 +361,7 @@ Examples:
 ```json
 {
   "cli": {
-    "enabled": ["gemini", "agent", "openclaw", "opencode", "copilot"],
+    "enabled": ["gemini", "agent", "openclaw", "opencode", "copilot", "agy"],
     "autoFallback": {
       "enabled": true,
       "onlyWhenNoApiKeys": true,
@@ -372,7 +372,8 @@ Examples:
     "agent": { "binary": "/usr/local/bin/agent", "model": "gpt-5.2" },
     "openclaw": { "binary": "/usr/local/bin/openclaw", "model": "main" },
     "opencode": { "binary": "/usr/local/bin/opencode", "model": "openai/gpt-5.4" },
-    "copilot": { "binary": "/usr/local/bin/copilot", "model": "gpt-5.2" }
+    "copilot": { "binary": "/usr/local/bin/copilot", "model": "gpt-5.2" },
+    "agy": { "binary": "/usr/local/bin/agy" }
   }
 }
 ```
@@ -385,6 +386,7 @@ Notes:
 - Auto fallback stores the last successful provider in `~/.summarize/cli-state.json` and prioritizes it on the next run.
 - `cli.<provider>.binary` overrides CLI binary discovery.
 - `cli.<provider>.extraArgs` appends extra CLI args.
+- Antigravity CLI uses the active agy session model; `cli.agy.model` is ignored by runtime selection.
 - `cli.codex.isolated` defaults to `true` for normal summaries, adding Codex ephemeral/no-user-config/no-rules flags, a temporary cwd, and a sanitized temporary `CODEX_HOME` that carries auth only. Set it to `false` only when local Codex config/rules are intentional.
 
 ## OpenAI config

docs/llm.md

@@ -38,7 +38,7 @@ installed, auto mode can use local CLI models via `cli.enabled` or implicit auto
 - `ANTHROPIC_API_KEY` (required for `anthropic/...` models)
 - `ANTHROPIC_BASE_URL` (optional; override Anthropic API endpoint)
 - `SUMMARIZE_MODEL` (optional; overrides default model selection)
-- `CLAUDE_PATH` / `CODEX_PATH` / `GEMINI_PATH` / `AGENT_PATH` / `OPENCLAW_PATH` / `OPENCODE_PATH` / `COPILOT_PATH` (optional; override CLI binary paths)
+- `CLAUDE_PATH` / `CODEX_PATH` / `GEMINI_PATH` / `AGENT_PATH` / `OPENCLAW_PATH` / `OPENCODE_PATH` / `COPILOT_PATH` / `AGY_PATH` (optional; override CLI binary paths)
 
 ## Flags
 
@@ -53,6 +53,7 @@ installed, auto mode can use local CLI models via `cli.enabled` or implicit auto
     - `cli/openclaw/main`
     - `cli/opencode/openai/gpt-5.4`
     - `cli/copilot/gpt-5.2`
+    - `cli/agy`
     - `openai/gpt-5.4`
     - `openai/gpt-5.4-mini`
     - `openai/gpt-5.4-nano`
@@ -69,7 +70,7 @@ installed, auto mode can use local CLI models via `cli.enabled` or implicit auto
     - `anthropic/claude-sonnet-4-5`
     - `openrouter/meta-llama/llama-3.3-70b-instruct:free` (force OpenRouter)
 - `--cli [provider]`
-  - Examples: `--cli claude`, `--cli Gemini`, `--cli codex`, `--cli agent`, `--cli openclaw`, `--cli opencode`, `--cli copilot` (equivalent to `--model cli/<provider>`); `--cli` alone uses auto selection with CLI enabled.
+  - Examples: `--cli claude`, `--cli Gemini`, `--cli codex`, `--cli agent`, `--cli openclaw`, `--cli opencode`, `--cli copilot`, `--cli agy` (equivalent to `--model cli/<provider>`); `--cli` alone uses auto selection with CLI enabled.
 - `--model auto`
   - See `docs/model-auto.md`
 - `--model <preset>`

src/config/parse-helpers.ts

@@ -17,7 +17,8 @@ export function parseCliProvider(value: unknown, path: string): CliProvider {
     trimmed === "agent" ||
     trimmed === "openclaw" ||
     trimmed === "opencode" ||
-    trimmed === "copilot"
+    trimmed === "copilot" ||
+    trimmed === "agy"
   ) {
     return trimmed as CliProvider;
   }

src/config/sections.ts

@@ -325,6 +325,7 @@ export function parseCliConfig(root: Record<string, unknown>, path: string): Cli
   const copilot = value.copilot
     ? parseCliProviderConfig(value.copilot, path, "copilot")
     : undefined;
+  const agy = value.agy ? parseCliProviderConfig(value.agy, path, "agy") : undefined;
   if (typeof value.autoFallback !== "undefined" && typeof value.magicAuto !== "undefined") {
     throw new Error(
       `Invalid config file ${path}: use only one of "cli.autoFallback" or legacy "cli.magicAuto".`,
@@ -359,6 +360,7 @@ export function parseCliConfig(root: Record<string, unknown>, path: string): Cli
     openclaw ||
     opencode ||
     copilot ||
+    agy ||
     autoFallback ||
     promptOverride ||
     typeof allowTools === "boolean" ||
@@ -373,6 +375,7 @@ export function parseCliConfig(root: Record<string, unknown>, path: string): Cli
         ...(openclaw ? { openclaw } : {}),
         ...(opencode ? { opencode } : {}),
         ...(copilot ? { copilot } : {}),
+        ...(agy ? { agy } : {}),
         ...(autoFallback ? { autoFallback } : {}),
         ...(promptOverride ? { promptOverride } : {}),
         ...(typeof allowTools === "boolean" ? { allowTools } : {}),

src/config/types.ts

@@ -7,7 +7,8 @@ export type CliProvider =
   | "agent"
   | "openclaw"
   | "opencode"
-  | "copilot";
+  | "copilot"
+  | "agy";
 export type OpenAiReasoningEffort = "none" | "low" | "medium" | "high" | "xhigh";
 export type OpenAiTextVerbosity = "low" | "medium" | "high";
 export type ModelRequestOptions = {
@@ -36,6 +37,7 @@ export type CliConfig = {
   openclaw?: CliProviderConfig;
   opencode?: CliProviderConfig;
   copilot?: CliProviderConfig;
+  agy?: CliProviderConfig;
   autoFallback?: CliAutoFallbackConfig;
   magicAuto?: CliAutoFallbackConfig;
   promptOverride?: string;

src/daemon/agent-model.ts

@@ -206,8 +206,10 @@ function buildNoAgentModelAvailableError({
           if (attempt.requiredEnv === "CLI_GEMINI") return "gemini";
           if (attempt.requiredEnv === "CLI_AGENT") return "agent";
           if (attempt.requiredEnv === "CLI_OPENCLAW") return "openclaw";
+          if (attempt.requiredEnv === "CLI_OPENCODE") return "opencode";
           if (attempt.requiredEnv === "CLI_COPILOT") return "copilot";
-          return "opencode";
+          if (attempt.requiredEnv === "CLI_AGY") return "agy";
+          return "unknown";
         })
         .filter((provider) => !cliAvailability[provider as keyof typeof cliAvailability]),
     ),

src/daemon/chat.ts

@@ -42,7 +42,11 @@ function resolveConfiguredCliModel(
             ? cli?.agent?.model
             : provider === "openclaw"
               ? cli?.openclaw?.model
-              : cli?.opencode?.model;
+              : provider === "opencode"
+                ? cli?.opencode?.model
+                : provider === "agy"
+                  ? null
+                  : cli?.copilot?.model;
   return typeof raw === "string" && raw.trim().length > 0 ? raw.trim() : null;
 }
 

src/daemon/env-snapshot.ts

@@ -41,6 +41,8 @@ const ENV_KEYS = [
   "OPENCLAW_PATH",
   "OPENCODE_PATH",
   "COPILOT_PATH",
+  "AGY_PATH",
+  "ANTIGRAVITY_API_KEY",
   "UVX_PATH",
 ] as const;
 

src/daemon/models.ts

@@ -142,6 +142,7 @@ export async function buildModelPickerOptions({
     cliOpenclaw: boolean;
     cliOpencode: boolean;
     cliCopilot: boolean;
+    cliAgy: boolean;
   };
   openaiBaseUrl: string | null;
   localModelsSource: { kind: "openai-compatible"; baseUrlHost: string } | null;
@@ -164,6 +165,7 @@ export async function buildModelPickerOptions({
     cliOpenclaw: false,
     cliOpencode: false,
     cliCopilot: false,
+    cliAgy: false,
   };
   const cliAvailability = resolveCliAvailability({ env: envForRun, config: configForCli });
   providers.cliClaude = Boolean(cliAvailability.claude);
@@ -173,6 +175,7 @@ export async function buildModelPickerOptions({
   providers.cliOpenclaw = Boolean(cliAvailability.openclaw);
   providers.cliOpencode = Boolean(cliAvailability.opencode);
   providers.cliCopilot = Boolean(cliAvailability.copilot);
+  providers.cliAgy = Boolean(cliAvailability.agy);
 
   const options: ModelPickerOption[] = [
     { id: "auto", label: "Auto" },
@@ -201,6 +204,9 @@ export async function buildModelPickerOptions({
   if (providers.cliCopilot) {
     options.push({ id: "cli/copilot", label: "CLI: GitHub Copilot" });
   }
+  if (providers.cliAgy) {
+    options.push({ id: "cli/agy", label: "CLI: Antigravity (agy)" });
+  }
 
   if (providers.openrouter) {
     options.push({ id: "free", label: "Free (OpenRouter)" });

src/llm/cli-provider-output.ts

@@ -1,7 +1,10 @@
 import type { CliProvider } from "../config.js";
 import type { LlmTokenUsage } from "./generate-text.js";
 
-export type JsonCliProvider = Exclude<CliProvider, "codex" | "openclaw" | "opencode" | "copilot">;
+export type JsonCliProvider = Exclude<
+  CliProvider,
+  "codex" | "openclaw" | "opencode" | "copilot" | "agy"
+>;
 
 const JSON_RESULT_FIELDS = ["result", "response", "output", "message", "text"] as const;
 
@@ -10,7 +13,8 @@ export function isJsonCliProvider(provider: CliProvider): provider is JsonCliPro
     provider !== "codex" &&
     provider !== "openclaw" &&
     provider !== "opencode" &&
-    provider !== "copilot"
+    provider !== "copilot" &&
+    provider !== "agy"
   );
 }