Factory-AI
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@@ -38,6 +38,39 @@ The guided flow will:
 
 For GitHub-only setups you can also run `/install-github-app`. See the [Automated Code Review guide](https://docs.factory.ai/guides/droid-exec/code-review) and the [GitHub App installation guide](https://docs.factory.ai/cli/features/install-github-app) for full details.
 
+### GitLab
+
+GitLab support ships as a **GitLab CI/CD Component** that delivers automated code review — inline MR comments on every merge request, with optional security review.
+
+Two files in your project:
+
+`factory/droid-review.yml`:
+
+```yaml
+include:
+  - project: "factory-components/droid-action"
+    ref: main
+    file: "/templates/droid-review.yml"
+    inputs:
+      automatic_review: "true"
+      automatic_security_review: "false"
+      review_depth: "deep"
+
+droid-review:
+  variables:
+    FACTORY_API_KEY: $FACTORY_API_KEY
+    GITLAB_TOKEN: $GITLAB_TOKEN
+```
+
+`.gitlab-ci.yml` (one include line, append to existing if present):
+
+```yaml
+include:
+  - local: "factory/droid-review.yml"
+```
+
+Full setup, available inputs, and troubleshooting live in [`docs/gitlab-setup.md`](docs/gitlab-setup.md).
+
 ### Manual Setup
 
 If you prefer to wire things up by hand:
 
@@ -0,0 +1,106 @@
+# GitLab Setup
+
+This action ships a **GitLab CI/CD Component** that delivers the same
+automated code-review experience as the GitHub action on GitLab merge
+requests (MRs). The component runs on every `merge_request_event` pipeline,
+posts inline comments on the diff, maintains a sticky tracking note, and
+optionally runs a security-focused subagent in parallel.
+
+## Quick start with `/install-code-review`
+
+The fastest path is the guided installer built into the Droid CLI:
+
+```bash
+droid
+> /install-code-review
+```
+
+It detects GitLab, asks which account should be the poster of review
+comments (you supply its PAT as `GITLAB_TOKEN`), asks the configuration
+questions below, drops `factory/droid-review.yml` in your project, wires
+it into `.gitlab-ci.yml`, and opens an MR / direct-commits to the target
+project(s).
+
+## Manual installation
+
+### 1. Prerequisites
+
+| Requirement                           | How to get it                                                                                                                                                                                            |
+| ------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| GitLab Maintainer role on the project | Repo admin grants you Maintainer (40)                                                                                                                                                                    |
+| `FACTORY_API_KEY` CI/CD variable      | Generate at <https://app.factory.ai/settings/api-keys>; add as **masked**, **unprotected** variable at the project, subgroup, or top-level group level                                                   |
+| `GITLAB_TOKEN` CI/CD variable         | A personal access token with the `api` scope, owned by whichever account should post review comments. The token owner is the poster — there is no API impersonation. Add as **masked**, **unprotected**. |
+
+### 2. Add the CI/CD Component
+
+Drop-in samples live in [`gitlab/examples/`](../gitlab/examples/). The
+layout is two files:
+
+- [`factory/droid-review.yml`](../gitlab/examples/factory/droid-review.yml) — self-contained config (include + inputs + variables). Drop verbatim.
+- [`.gitlab-ci.yml`](../gitlab/examples/.gitlab-ci.yml) — project-root entry point. If you already have one, append the include line below to its `include:` block.
+
+**`factory/droid-review.yml`** (drop into your project):
+
+```yaml
+include:
+  - project: "factory-components/droid-action"
+    ref: main
+    file: "/templates/droid-review.yml"
+    inputs:
+      automatic_review: "true"
+      automatic_security_review: "false"
+      review_depth: "deep"
+      include_suggestions: "true"
+      security_block_on_critical: "true"
+      security_block_on_high: "false"
+
+droid-review:
+  variables:
+    FACTORY_API_KEY: $FACTORY_API_KEY
+    GITLAB_TOKEN: $GITLAB_TOKEN
+```
+
+**`.gitlab-ci.yml`** (project root, just needs the one include line):
+
+```yaml
+include:
+  - local: "factory/droid-review.yml"
+```
+
+> The remote `include:` URL is pinned to `@main`, which tracks the
+> latest stable cut of droid-action.
+
+### 3. Push an MR
+
+Open or push to an MR. The next `merge_request_event` pipeline will run
+the `droid-review` job. Expect ~5-10 minutes for a typical change.
+
+## Inputs
+
+| Input                        | Default   | Description                                                                                                                                  |
+| ---------------------------- | --------- | -------------------------------------------------------------------------------------------------------------------------------------------- |
+| `automatic_review`           | `"true"`  | Run code review automatically on every MR pipeline.                                                                                          |
+| `automatic_security_review`  | `"false"` | Run a parallel security-focused subagent on every MR pipeline. Findings are prefixed `[security]` and posted alongside code-review comments. |
+| `review_depth`               | `"deep"`  | `"deep"` (thorough) or `"shallow"` (fast).                                                                                                   |
+| `review_model`               | `""`      | Override the model. Empty = use depth preset.                                                                                                |
+| `reasoning_effort`           | `""`      | Override reasoning effort. Empty = use depth preset.                                                                                         |
+| `include_suggestions`        | `"true"`  | Include code suggestion blocks in review comments when the fix is high-confidence.                                                           |
+| `security_block_on_critical` | `"true"`  | Block merge on CRITICAL security findings. (Mirrors GitHub action; surface-level parity.)                                                    |
+| `security_block_on_high`     | `"false"` | Block merge on HIGH security findings. (Mirrors GitHub action; surface-level parity.)                                                        |
+| `settings`                   | `""`      | Droid Exec settings as a JSON string or a path to a JSON file. Merged into `~/.factory/droid/settings.json` before each `droid exec` call.   |
+
+## What you get
+
+Each MR pipeline produces:
+
+- **Inline review comments** anchored to the relevant diff lines, posted in a
+  single batched `submit_review` call. Findings are prefixed with priority
+  tags (`P0`, `P1`, `P2`, `P3`) and `[security]` for security findings.
+- **A sticky tracking note** on the MR with pipeline + job links, telemetry
+  (`N turns • Xm Ys`), session IDs, and a security badge when
+  `automatic_security_review` is enabled.
+- **Debug artifacts** at `.droid-debug/` (prompts, candidate JSON, raw
+  stream-json logs) retained for 1 week.
+- **A custom droid library** copied from
+  `$DROID_ACTION_DIR/.factory/droids` into `~/.factory/droids` on the
+  runner, so subagents like `security-reviewer` are reachable.
@@ -0,0 +1,9 @@
+# Example project-root .gitlab-ci.yml.
+#
+# If the project doesn't have a .gitlab-ci.yml yet, create one with at
+# minimum the include line below. If it already has one, just append the
+# `- local: "factory/droid-review.yml"` entry to its existing `include:`
+# block (or add a new `include:` block if there isn't one).
+
+include:
+  - local: "factory/droid-review.yml"
@@ -0,0 +1,21 @@
+# GitLab examples
+
+Two-file layout for consuming the droid-action GitLab CI/CD Component:
+
+```
+your-project/
+├── .gitlab-ci.yml                  # gains one `include:` line
+└── factory/
+    └── droid-review.yml            # self-contained droid-review config
+```
+
+| File                          | Where it lives in your project                     | Purpose                                                                                       |
+| ----------------------------- | -------------------------------------------------- | --------------------------------------------------------------------------------------------- |
+| `factory/droid-review.yml`    | drop verbatim                                      | Self-contained config: includes the remote Component, sets inputs, wires CI/CD variables.     |
+| `.gitlab-ci.yml`              | append one `include:` line if the file exists      | Project-root entry point. Just needs to include `factory/droid-review.yml`.                   |
+
+The two required CI/CD variables (`FACTORY_API_KEY`, `GITLAB_TOKEN`) are set
+in the GitLab UI under **Project → Settings → CI/CD → Variables** (or at
+the group level for org-wide rollout), masked and unprotected.
+
+For the full input reference see the docs at [`docs/gitlab-setup.md`](../../docs/gitlab-setup.md).
@@ -0,0 +1,31 @@
+# factory/droid-review.yml
+#
+# Drop this file at `factory/droid-review.yml` in your project, then
+# add a single `include: - local: "factory/droid-review.yml"` line to
+# your `.gitlab-ci.yml` (see ../.gitlab-ci.yml for the entry-point
+# example).
+#
+# Prerequisites (one-time, set in Project / Group → Settings → CI/CD):
+#
+#   * FACTORY_API_KEY — masked variable. Get one at
+#     https://app.factory.ai/settings/api-keys
+#   * GITLAB_TOKEN    — masked variable. A personal access token with
+#     `api` scope, owned by whichever GitLab account should post review
+#     comments. The token owner IS the poster.
+
+include:
+  - project: "factory-components/droid-action"
+    ref: main
+    file: "/templates/droid-review.yml"
+    inputs:
+      automatic_review: "true" # run on every MR event; "false" disables
+      review_depth: "deep" # "deep" (thorough) or "shallow" (fast)
+      include_suggestions: "true" # post code-suggestion blocks for high-confidence fixes
+      automatic_security_review: "false" # enable to flag vulns alongside the regular review
+      security_block_on_critical: "true" # block merge on CRITICAL findings (when security review is on)
+      security_block_on_high: "false" # block merge on HIGH findings
+
+droid-review:
+  variables:
+    FACTORY_API_KEY: $FACTORY_API_KEY
+    GITLAB_TOKEN: $GITLAB_TOKEN
@@ -0,0 +1,97 @@
+#!/usr/bin/env bun
+
+/**
+ * Prepare step for Pass 2 (validator) of the GitLab two-pass review flow.
+ *
+ * Runs between the two `droid exec` invocations in the CI template:
+ *
+ *   1. Reads the state file produced by `gitlab-prepare.ts` (Pass 1).
+ *      Bails out cleanly if Pass 1 decided not to review.
+ *   2. Reconstructs the GitLab review prompt context from state.
+ *   3. Generates the Pass-2 validator prompt.
+ *   4. Overwrites the shared prompt file (the same file Pass 1 used)
+ *      so the next `droid exec -f <promptPath>` consumes Pass 2.
+ *
+ * No GitLab API calls are made here — all the data we need is already
+ * on disk from Pass 1's artifact precomputation.
+ */
+
+import * as fs from "fs/promises";
+import * as path from "path";
+import { generateGitlabReviewValidatorPrompt } from "../gitlab/prompts/validator";
+import type { GitlabReviewPromptContext } from "../gitlab/prompts/types";
+import type { PrepareState } from "./gitlab-prepare";
+
+function stateFilePath(): string {
+  return (
+    process.env.DROID_STATE_FILE ||
+    path.join(process.env.CI_PROJECT_DIR || "/tmp", ".droid-state.json")
+  );
+}
+
+async function readState(): Promise<PrepareState> {
+  const filePath = stateFilePath();
+  const raw = await fs.readFile(filePath, "utf8");
+  return JSON.parse(raw) as PrepareState;
+}
+
+function ensure<T>(value: T | null | undefined, name: string): T {
+  if (value === null || value === undefined) {
+    throw new Error(
+      `gitlab-prepare-validator: missing state.${name}; was gitlab-prepare run successfully?`,
+    );
+  }
+  return value;
+}
+
+async function run(): Promise<void> {
+  const state = await readState();
+
+  if (!state.shouldRunReview) {
+    console.log(
+      `Pass 1 was skipped (reason: ${state.reason ?? "unknown"}); skipping validator prepare.`,
+    );
+    return;
+  }
+
+  const promptPath = ensure(state.promptPath, "promptPath");
+  const mrIid = ensure(state.mrIid, "mrIid");
+  const candidatesPath = ensure(state.candidatesPath, "candidatesPath");
+  const validatedPath = ensure(state.validatedPath, "validatedPath");
+  const diffPath = ensure(state.diffPath, "diffPath");
+  const commentsPath = ensure(state.commentsPath, "commentsPath");
+  const descriptionPath = ensure(state.descriptionPath, "descriptionPath");
+  const headSha = ensure(state.headSha, "headSha");
+
+  const promptCtx: GitlabReviewPromptContext = {
+    projectPath: state.projectPath,
+    mrIid,
+    mrTitle: state.mrTitle ?? "",
+    sourceBranch: state.sourceBranch ?? "",
+    targetBranch: state.targetBranch ?? "",
+    headSha,
+    diffPath,
+    commentsPath,
+    descriptionPath,
+    candidatesPath,
+    validatedPath,
+    includeSuggestions: state.includeSuggestions,
+    securityReviewEnabled: state.securityReviewEnabled,
+  };
+
+  const prompt = generateGitlabReviewValidatorPrompt(promptCtx);
+  await fs.mkdir(path.dirname(promptPath), { recursive: true });
+  await fs.writeFile(promptPath, prompt);
+  console.log(
+    `Wrote Pass-2 validator prompt (${prompt.length} bytes) to ${promptPath} (overwrote Pass 1)`,
+  );
+}
+
+if (import.meta.main) {
+  run().catch((error) => {
+    console.error("gitlab-prepare-validator failed:", error);
+    process.exit(1);
+  });
+}
+
+export { run };