docs: list antigravity cli as a supported flat host, with a local runtime smoke

README.md

@@ -37,7 +37,7 @@ Why not just write your own commands? → [FAQ](docs/FAQ.md#-why-aidd-instead-of
 
 ## ✅ Prerequisites
 
-- **An AI coding tool** — Claude Code (native), or Cursor / Copilot / Codex / OpenCode / Kilo Code (see [Compatibility](#-compatibility)).
+- **An AI coding tool** — Claude Code (native), or Cursor / Copilot / Codex / OpenCode / Kilo Code / Antigravity CLI (see [Compatibility](#-compatibility)).
 - **[Node](https://nodejs.org) 22 or later** on your `PATH`, only for the plugin that ships hooks ([what they do](docs/ARCHITECTURE.md#-bundled-hooks)); the workflows themselves are markdown and need nothing.
 
 ## 🔌 Compatibility
@@ -50,6 +50,7 @@ Why not just write your own commands? → [FAQ](docs/FAQ.md#-why-aidd-instead-of
 | **Codex** | ✅ Supported | Marketplace · Flat |
 | **OpenCode** | ✅ Supported | Flat |
 | **Kilo Code** | ✅ Supported | Flat |
+| **Antigravity CLI** | ✅ Supported | Flat |
 | **Gemini · Mistral** | 🚧 In progress | — |
 
 <sub>**Marketplace** = installed and updated through your tool's plugin manager. **Flat** = files copied directly into your project, no plugin manager involved. Install steps per tool → [Other tools](#other-tools).</sub>
@@ -185,6 +186,18 @@ codex plugin add aidd-context@aidd-framework   # per plugin
 
 </details>
 
+<details>
+<summary><strong>Antigravity CLI</strong> — Flat only</summary>
+
+1. Unzip the `antigravity-flat` archive into your project root → `.agents/`: skills, agents, and the memory hook in `.agents/hooks.json`.
+2. Start `agy` in the project. A hook already in `.agents/hooks.json` under another name is kept.
+
+Codex flat also writes `.agents/skills/`: removing one of the two from a project that has both deletes skills the other still uses.
+
+[Docs](https://antigravity.google/docs/subagents?tab=cli)
+
+</details>
+
 ## 🚀 Quick start
 
 Three ways in — pick one:

aidd_docs/tasks/2026_10/2026_10_02_antigravity-flat-host/phase-5.md

@@ -1,5 +1,5 @@
 ---
-status: pending
+status: done
 ---
 
 <!-- Fill or omit these sections; never add, rename, or reorder one. -->

aidd_docs/tasks/2026_10/2026_10_02_antigravity-flat-host/plan.md

@@ -1,6 +1,6 @@
 ---
 objective: "`aidd setup --ai antigravity` and `aidd translate --to antigravity --as flat` write AIDD skills, the memory hook and agents under `.agents/`, which `agy` loads, without touching files AIDD did not write."
-status: in-progress
+status: implemented
 ---
 
 <!-- Fill or omit these sections; never add, rename, or reorder one. -->

cli/README.md

@@ -3,7 +3,7 @@
 `@ai-driven-dev/cli` installs AI tool runtime configs, IDE integrations, and plugins from an AIDD marketplace into a project.
 Every file it writes is hash-tracked in a manifest, so drift is detected and owned files can be restored.
 
-Supported AI tools: Claude Code, Cursor, GitHub Copilot, Codex, OpenCode, Kilo Code. Supported IDE: VS Code.
+Supported AI tools: Claude Code, Cursor, GitHub Copilot, Codex, OpenCode, Kilo Code, Antigravity CLI. Supported IDE: VS Code.
 Requires Node.js >= 22.12, and `git` to fetch marketplace plugins.
 
 ## Install
@@ -137,8 +137,9 @@ Two output layouts, chosen by `--as`:
 | `codex` | yes | yes | `.codex/` |
 | `opencode` | no | yes | `.opencode/` |
 | `kilo` | no | yes | `.kilo/` |
+| `antigravity` | no | yes | `.agents/` |
 
-OpenCode and Kilo Code declare no marketplace contract, so they are flat only. Every other target accepts both layouts.
+OpenCode, Kilo Code and Antigravity CLI declare no marketplace contract, so they are flat only. Every other target accepts both layouts.
 
 ## Environment variables
 

cli/package.json

@@ -54,6 +54,7 @@
     "smoke:full": "pnpm build && SMOKE_REMOTE=1 bash scripts/smoke-tools.sh",
     "smoke:real": "pnpm build && bash scripts/smoke-real.sh",
     "smoke:collision": "pnpm build && bash scripts/smoke-collision.sh",
+    "smoke:antigravity": "pnpm build && bash scripts/smoke-antigravity.sh",
     "typecheck": "tsc --noEmit",
     "lint": "biome check .",
     "format": "biome format --write .",

cli/scripts/smoke-antigravity.sh

@@ -0,0 +1,109 @@
+#!/usr/bin/env bash
+# Runtime smoke against a real, logged-in `agy`: after `aidd setup --ai antigravity`, the host
+# itself expands an AIDD skill, loads and fires the memory hook, and lists an AIDD agent.
+# Local only, never in CI or lefthook: a turn needs a Google login. `pnpm smoke:antigravity`.
+#
+# Measured on agy 1.2.17, and why the script reads logs instead of waiting on a turn:
+# - print mode (`-p`) fires no hook, so the hook session runs interactive under a pty
+#   (`script`), with `--add-dir` (without it, 0 hooks load);
+# - an interactive turn never returns, so that session is killed after a bound, and only its
+#   log lines and the files it touched count as evidence;
+# - an interactive initial prompt is sent as text, never expanded, so the skill and
+#   `/agents` checks use print mode, bounded by `--print-timeout`.
+#
+# The project is a throwaway git repo; HOME stays real because the login lives there, but
+# `AIDD_USER_CONFIG_DIR` is relocated so setup never touches the real aidd profile.
+set -uo pipefail
+
+ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+FRAMEWORK="$(cd "$ROOT/.." && pwd)"
+CLI="$ROOT/dist/cli.js"
+TURN_SECONDS="${SMOKE_AGY_TIMEOUT:-60}"
+
+SKILL="aidd-context-11-explore"
+AGENT="aidd-dev-executor"
+GHOST_AGENT="aidd-dev-ghost"
+
+command -v agy >/dev/null 2>&1 || { echo "FATAL: agy not on PATH — install Antigravity CLI and log in"; exit 1; }
+[[ -f "$CLI" ]] || { echo "FATAL: $CLI missing — run 'pnpm build' first"; exit 1; }
+
+TMP="$(mktemp -d)"
+WS="$TMP/project"
+SESSION_PID=""
+cleanup() {
+  if [[ -n "$SESSION_PID" ]]; then
+    pkill -P "$SESSION_PID" 2>/dev/null
+    kill "$SESSION_PID" 2>/dev/null
+  fi
+  rm -rf "$TMP"
+}
+trap cleanup EXIT
+
+export AIDD_USER_CONFIG_DIR="$TMP/aidd-config"
+export AIDD_SKIP_UPDATE_CHECK=1
+
+FAIL=0
+pass() { echo "  PASS  $1"; echo "        $2"; }
+fail() { echo "  FAIL  $1"; FAIL=$((FAIL + 1)); }
+
+echo "agy $(agy --version 2>&1 | head -1), $(date '+%Y-%m-%d %H:%M %Z')"
+
+# A project with a memory bank and an empty memory block, so the hook has something to fill.
+mkdir -p "$WS/aidd_docs/memory"
+printf '# Architecture\n' >"$WS/aidd_docs/memory/architecture.md"
+printf '# Project\n\n## Memory Management\n\n<!-- aidd_project_memory:start -->\n<!-- aidd_project_memory:end -->\n' >"$WS/AGENTS.md"
+git -C "$WS" init -q
+git -C "$WS" -c user.email=smoke@aidd -c user.name=smoke commit -q --allow-empty -m init
+
+if ! (cd "$WS" && node "$CLI" setup --source local --path "$FRAMEWORK" --ai antigravity --plugins recommended --yes) >"$TMP/setup.log" 2>&1; then
+  echo "FATAL: aidd setup failed"; tail -5 "$TMP/setup.log"; exit 1
+fi
+for f in ".agents/skills/$SKILL/SKILL.md" ".agents/hooks.json" ".agents/agents/$AGENT/agent.md"; do
+  [[ -f "$WS/$f" ]] || { echo "FATAL: setup did not write $f"; exit 1; }
+done
+
+LOG="$TMP/agy-session.log"
+(cd "$WS" && exec script -q /dev/null agy -i "reply OK" --mode plan --add-dir "$WS" --log-file "$LOG") \
+  >"$TMP/agy-session.out" 2>&1 &
+SESSION_PID=$!
+
+for ((i = 0; i < TURN_SECONDS; i++)); do
+  grep -q 'aidd_docs/memory/architecture.md' "$WS/AGENTS.md" && break
+  sleep 1
+done
+pkill -P "$SESSION_PID" 2>/dev/null
+kill "$SESSION_PID" 2>/dev/null
+wait "$SESSION_PID" 2>/dev/null
+SESSION_PID=""
+
+# Startup logs "not logged into Antigravity" before the stored login is read, so only a missing
+# success line means no login.
+if ! grep -q "OAuth: authenticated successfully" "$LOG" 2>/dev/null; then
+  echo "FATAL: agy is not logged in — run 'agy' once and sign in"; exit 1
+fi
+
+line="$(grep -Eo 'loaded [1-9][0-9]* named hooks from [0-9]+ hooks.json file\(s\)' "$LOG" 2>/dev/null | head -1)"
+[[ -n "$line" ]] && pass "hooks loaded" "$line" || fail "hooks: no 'loaded N named hooks' line (N >= 1) in the agy log"
+
+line="$(grep -m1 'aidd_docs/memory/architecture.md' "$WS/AGENTS.md")"
+[[ -n "$line" ]] && pass "memory refreshed at the repo root" "AGENTS.md: $line" || fail "memory: AGENTS.md block still empty, the SessionStart hook did not run at the repo root"
+
+# The expansion is logged before the model answers, so a short bound is enough.
+SKILL_LOG="$TMP/agy-skill.log"
+(cd "$WS" && agy --add-dir "$WS" --mode plan --print-timeout 20s --log-file "$SKILL_LOG" -p "/$SKILL") >/dev/null 2>&1
+line="$(grep -o "expanded slash command \"$SKILL\" (skill)" "$SKILL_LOG" 2>/dev/null | head -1)"
+[[ -n "$line" ]] && pass "skill expanded" "$line" || fail "skill: no 'expanded slash command \"$SKILL\"' line in the agy log"
+
+# Print mode answers /agents without the model.
+AGENTS_JSON="$TMP/agents.json"
+(cd "$WS" && agy --add-dir "$WS" --output-format json --print-timeout "${TURN_SECONDS}s" -p "/agents") >"$AGENTS_JSON" 2>&1
+line="$(grep -o "\"$AGENT\"" "$AGENTS_JSON" | head -1)"
+if [[ -n "$line" ]] && ! grep -q "\"$GHOST_AGENT\"" "$AGENTS_JSON"; then
+  pass "agent listed" "/agents: $line, $GHOST_AGENT absent"
+else
+  fail "agents: /agents does not list \"$AGENT\" (or lists the invented $GHOST_AGENT)"
+fi
+
+echo
+[[ "$FAIL" -eq 0 ]] && { echo "smoke-antigravity: all passed"; exit 0; }
+echo "smoke-antigravity: $FAIL failed"; exit 1

docs/FAQ.md

@@ -11,7 +11,7 @@ You can write your own Claude Code skills — nothing stops you. AIDD exists bec
 - **Install / first run** → [Quick start](../README.md#-quick-start).
 - **Update plugins** → `/plugin marketplace update aidd-framework`, or see [Versioning & updates](MARKETPLACE.md#-versioning--updates).
 - **Private repo?** Yes — `/plugin marketplace add` just needs GitHub read access (via `gh auth login` or a PAT).
-- **Cursor / Copilot / Codex / OpenCode / Kilo Code?** Each other tool installs via its own native mechanism (project files, local plugins, or a plugin command) from the [release](https://github.com/ai-driven-dev/framework/releases/latest) archives. Steps per tool → [Other tools](../README.md#other-tools).
+- **Cursor / Copilot / Codex / OpenCode / Kilo Code / Antigravity CLI?** Each other tool installs via its own native mechanism (project files, local plugins, or a plugin command) from the [release](https://github.com/ai-driven-dev/framework/releases/latest) archives. Steps per tool → [Other tools](../README.md#other-tools).
 
 ## 💸 Cost and quotas
 

docs/MAINTAINERS.md

@@ -148,6 +148,7 @@ Roles, promotion, and inactivity rules → [`GOVERNANCE.md`](../GOVERNANCE.md#-r
 - The marketplace is Claude Code native.
 - Other tools are served by per-release archives the `aidd-cli` builds; this repo stays Claude-authored and tool-agnostic in its prose.
 - Keep tool-specific detail in plugin READMEs.
+- Antigravity CLI has no runtime check in CI: a turn needs a Google login. Before a release that touches its profile, run `cd cli && pnpm smoke:antigravity` on a machine where `agy` is logged in. It installs AIDD into a throwaway project, then checks the `agy` log for a skill expansion and the loaded hooks, the project memory for the hook's refresh, and `/agents` for an AIDD agent.
 
 ## 🧱 Build your own plugin
 

plugins/aidd-context/hooks/update_memory.js

@@ -42,6 +42,7 @@ const TOOL_FILES = {
   codex: "AGENTS.md",
   cursor: "AGENTS.md",
   opencode: "AGENTS.md",
+  antigravity: "AGENTS.md",
   copilot: ".github/copilot-instructions.md",
 };
 

plugins/aidd-context/skills/00-onboard/references/state/detection.md

@@ -10,6 +10,7 @@ A tool is used when its own dir exists, or when a file only that tool reads exis
 | codex    | `.codex/`                                                                            | `AGENTS.md`                        |
 | cursor   | `.cursor/` or `.cursorrules`                                                         | `AGENTS.md`                        |
 | opencode | `.opencode/`                                                                         | `AGENTS.md`                        |
+| antigravity | `.agents/agents/`, `.agents/rules/` or `.agents/hooks.json`                       | `AGENTS.md`                        |
 | copilot  | `.github/copilot-instructions.md` or `.github/{instructions,agents,skills,prompts}/` | `.github/copilot-instructions.md`  |
 
 - Detected tools only. An unused optional tool is omitted, never crossed.

plugins/aidd-context/skills/02-project-memory/references/tools.md

@@ -8,6 +8,7 @@ The AI tools a project can use.
 | codex    | `.codex/`                                                                            | `AGENTS.md`                       |
 | cursor   | `.cursor/` or `.cursorrules`                                                         | `AGENTS.md`                       |
 | opencode | `.opencode/`                                                                         | `AGENTS.md`                       |
+| antigravity | `.agents/agents/`, `.agents/rules/` or `.agents/hooks.json`                       | `AGENTS.md`                       |
 | copilot  | `.github/copilot-instructions.md` or `.github/{instructions,agents,skills,prompts}/` | `.github/copilot-instructions.md` |
 
 - A shared `AGENTS.md` is a wiring target, never a detection signal.

plugins/aidd-context/skills/04-skill-generate/references/tool-detect.md

@@ -9,5 +9,6 @@ Which AI tools a project has installed.
 | OpenCode       | `.opencode/`                      |
 | GitHub Copilot | `.github/copilot-instructions.md` |
 | Codex CLI      | `.codex/`                         |
+| Antigravity CLI | `.agents/agents/`, `.agents/rules/` or `.agents/hooks.json` |
 
-A bare `AGENTS.md` means Cursor, OpenCode, or Codex. Several signals can coexist.
+A bare `AGENTS.md` means Cursor, OpenCode, Codex, or Antigravity CLI. `.agents/skills/` alone is no signal: Codex and Antigravity CLI both read it. Several signals can coexist.

plugins/aidd-context/skills/04-skill-generate/references/tool-write.md

@@ -11,6 +11,7 @@ Where a skill tree is written, per tool.
 | OpenCode       | `.opencode/skills/<name>/`       |
 | GitHub Copilot | `.github/skills/<name>/`         |
 | Codex CLI      | `.agents/skills/<name>/`         |
+| Antigravity CLI | `.agents/skills/<name>/`        |
 | Plugin source  | `plugins/<plugin>/skills/<name>/` |
 
 ## Frontmatter
@@ -23,3 +24,4 @@ Emit `description` always, `name` only where listed, drop the rest.
 | Cursor, GitHub Copilot | `name`, `description`, opt `allowed-tools`                             |
 | OpenCode               | `description`, opt `permission` map                                   |
 | Codex CLI              | `name`, `description` (strips the rest)                                |
+| Antigravity CLI        | `name`, `description`                                                  |

plugins/aidd-context/skills/05-rule-generate/references/tool-paths.md

@@ -11,12 +11,15 @@ The per-tool rules path and write targets. Rule slice only, nothing about skills
 | GitHub Copilot | `.github/instructions/<NN>-<name>.instructions.md` | yes (flat) |
 | OpenCode       | `.opencode/rules/<category>/<slug>.md`              | yes        |
 | Codex CLI      | `.codex/rules/<category>/<slug>.md`                 | yes        |
+| Antigravity CLI | `.agents/rules/<slug>.md`                          | yes (flat) |
 
 `<slug>` is the file name `#-slug` from `rule-authoring.md` (e.g. `2-python-fstrings`). `<name>` is that slug with its leading category digit dropped (`python-fstrings`). `<category>` is the folder `<NN>-<name-of-category>`, the zero-padded category index plus the category name from the taxonomy, e.g. `01-standards`. `<NN>` is that same two-digit index.
 
 Copilot is flat: no category folder. Its file is `<NN>-<name>`, e.g. `2-python-fstrings` becomes `02-python-fstrings` (one category prefix, no folder).
 
-Every tool above installs rules. This table used to say OpenCode and Codex do not, and to tell a generator to put the convention in AGENTS.md instead; both were false. `plugin-content-translator.ts` routes a plugin's `rules/` into every tool whose capability accepts them, and all five accept them — `aidd ai rules` prints where each one lands, asked of the installer itself rather than of a list.
+Antigravity CLI is flat too: it reads only the direct `.md` children of `.agents/rules/`, so a category folder would hide the rule.
+
+Every tool above installs rules. This table used to say OpenCode and Codex do not, and to tell a generator to put the convention in AGENTS.md instead; both were false. `plugin-content-translator.ts` routes a plugin's `rules/` into every tool whose capability accepts them, and all five accept them. Antigravity CLI is the exception: AIDD installs no rule for it, so a generated rule is the only way one reaches `.agents/rules/` — `aidd ai rules` prints where each one lands, asked of the installer itself rather than of a list.
 
 Both use the same frontmatter as Claude Code: `paths` (array of globs), omitted for an all-files rule.
 
@@ -29,6 +32,7 @@ The file-scope field is named differently per tool. Set the right one.
 | Claude Code    | `paths` (array of globs). Omit `paths` for an all-files rule; no `paths` means it applies everywhere.  |
 | Cursor         | `description` (one line, what the rule governs), `globs` (comma-separated; omit for all-files), `alwaysApply` (false; true for all-files). |
 | GitHub Copilot | `applyTo` (single glob string; `**` for an all-files rule).                                          |
+| Antigravity CLI | `trigger` (required): `always_on` for an all-files rule, else `glob` with `globs`. |
 
 A multi-glob `paths` becomes a comma-joined string for Cursor and Copilot, or the most-encompassing glob.
 
@@ -39,6 +43,7 @@ A multi-glob `paths` becomes a comma-joined string for Cursor and Copilot, or th
 | `.claude/` or `CLAUDE.md`         | Claude Code    |
 | `.cursor/`                        | Cursor         |
 | `.github/copilot-instructions.md` | GitHub Copilot |
+| `.agents/agents/`, `.agents/rules/` or `.agents/hooks.json` | Antigravity CLI |
 
 ## Write targets
 

plugins/aidd-context/skills/06-agent-generate/references/tool-paths.md

@@ -11,8 +11,9 @@ The per-tool agent path and the gate every run executes before writing. Agent sl
 | OpenCode       | `.opencode/agents/<name>.md`     | markdown + frontmatter |
 | GitHub Copilot | `.github/agents/<name>.agent.md` | markdown + frontmatter |
 | Codex CLI      | `.codex/agents/<name>.toml`      | TOML (converted)       |
+| Antigravity CLI | `.agents/agents/<name>/agent.md` | markdown + frontmatter |
 
-Agents are supported on all five tools.
+Agents are supported on all six tools.
 
 ## Frontmatter per tool
 
@@ -25,6 +26,9 @@ The canonical agent carries `name`, `description`, `model`. Emit those a row acc
 | OpenCode       | `name`, `description`, `model`, optional `temperature`, `permission` |
 | GitHub Copilot | `name`, `description`, `model`, optional `tools`            |
 | Codex CLI      | `name`, `description` (drops `model`)                       |
+| Antigravity CLI | `name`, `description`, `model: inherit`, optional `tools` as a YAML list |
+
+`agy` drops in silence an agent whose `model` is not `inherit`, `flash` or `pro`, or whose `tools` is a comma-separated string.
 
 ## Codex TOML conversion
 
@@ -43,7 +47,8 @@ Codex agents are TOML, not markdown. Convert:
 | `.opencode/`                      | OpenCode                              |
 | `.codex/`                         | Codex CLI                             |
 | `.github/copilot-instructions.md` | GitHub Copilot                        |
-| `AGENTS.md`                       | Cursor, OpenCode, or Codex (list all) |
+| `.agents/agents/`, `.agents/rules/` or `.agents/hooks.json` | Antigravity CLI |
+| `AGENTS.md`                       | Cursor, OpenCode, Codex, or Antigravity CLI (list all) |
 
 ## Write targets