diff --git a/.claude/skills/verify/SKILL.md b/.claude/skills/verify/SKILL.md
index a42d9bfe5..e9d38317f 100644
--- a/.claude/skills/verify/SKILL.md
+++ b/.claude/skills/verify/SKILL.md
@@ -1,12 +1,12 @@
-# Verify: run Synara locally for runtime verification
+# Verify: run Scient locally for runtime verification
 
-How to launch an isolated Synara instance (server + web) to observe UI changes, without touching `~/.synara` or the default dev ports.
+How to launch an isolated Scient instance (server + web) to observe UI changes, without touching `~/.scient` or the default dev ports. The `SYNARA_*` names below are inherited runtime compatibility variables; `SCIENT_HOME` is the canonical state-home variable.
 
 ## Launch
 
 ```bash
 # 1. Server (from the directory you want as the workspace/project cwd):
-SYNARA_HOME=<scratch>/synara-home \
+SCIENT_HOME=<scratch>/scient-home \
 SYNARA_PORT=3899 SYNARA_MODE=web SYNARA_NO_BROWSER=1 \
 VITE_DEV_SERVER_URL=http://localhost:5899 \
 bun <repo>/apps/server/src/index.ts &
diff --git a/.docs/architecture.md b/.docs/architecture.md
index 0334e7517..947b402b9 100644
--- a/.docs/architecture.md
+++ b/.docs/architecture.md
@@ -1,6 +1,6 @@
 # Architecture
 
-Synara runs as a **Node.js WebSocket server** that wraps `codex app-server` (JSON-RPC over stdio) and serves a React web app.
+Scient runs as a **Node.js WebSocket server** that wraps `codex app-server` (JSON-RPC over stdio) and serves a React web app.
 
 ```
 ┌─────────────────────────────────┐
diff --git a/.docs/codex-prerequisites.md b/.docs/codex-prerequisites.md
index b68e5c89f..cadb83551 100644
--- a/.docs/codex-prerequisites.md
+++ b/.docs/codex-prerequisites.md
@@ -1,5 +1,5 @@
 # Codex prerequisites
 
 - Install Codex CLI so `codex` is on your PATH.
-- Authenticate Codex before running Synara (for example via API key or ChatGPT auth supported by Codex).
-- Synara starts the server via `codex app-server` per session.
+- Authenticate Codex before running Scient (for example via API key or ChatGPT auth supported by Codex).
+- Scient starts the server via `codex app-server` per session.
diff --git a/.docs/encyclopedia.md b/.docs/encyclopedia.md
index 60b514d79..0b3c2272f 100644
--- a/.docs/encyclopedia.md
+++ b/.docs/encyclopedia.md
@@ -1,6 +1,6 @@
 # Encyclopedia
 
-This is a living glossary for Synara. It explains what common terms mean in this codebase.
+This is a living glossary for Scient. It explains what common terms mean in this codebase.
 
 ## Table of contents
 
diff --git a/.docs/quick-start.md b/.docs/quick-start.md
index 401b31a23..4f9ba1b1a 100644
--- a/.docs/quick-start.md
+++ b/.docs/quick-start.md
@@ -8,6 +8,7 @@ bun run dev
 bun run dev:desktop
 
 # Desktop development on an isolated port set
+# `SYNARA_DEV_INSTANCE` is an inherited compatibility variable.
 SYNARA_DEV_INSTANCE=feature-xyz bun run dev:desktop
 
 # Production
@@ -17,6 +18,6 @@ bun run start
 # Build a shareable macOS .dmg (arm64 by default)
 bun run dist:desktop:dmg
 
-# Or from any project directory after publishing:
-npx synara
+# Or from any project directory after publishing @scientfactory/cli:
+npx --package @scientfactory/cli scient
 ```
diff --git a/.docs/runtime-modes.md b/.docs/runtime-modes.md
index 18416f641..03cdebf57 100644
--- a/.docs/runtime-modes.md
+++ b/.docs/runtime-modes.md
@@ -1,6 +1,6 @@
 # Runtime modes
 
-Synara has a global runtime mode switch in the chat toolbar:
+Scient has a global runtime mode switch in the chat toolbar:
 
 - **Full access** (default): starts sessions with `approvalPolicy: never` and `sandboxMode: danger-full-access`.
 - **Supervised**: starts sessions with `approvalPolicy: on-request` and `sandboxMode: workspace-write`, then prompts in-app for command/file approvals.
diff --git a/.docs/scripts.md b/.docs/scripts.md
index 3ec06ae9d..05f560ec7 100644
--- a/.docs/scripts.md
+++ b/.docs/scripts.md
@@ -3,9 +3,9 @@
 - `bun run dev` — Starts contracts, server, and web in `turbo watch` mode.
 - `bun run dev:server` — Starts just the WebSocket server (uses Bun TypeScript execution).
 - `bun run dev:web` — Starts just the Vite dev server for the web app.
-- Dev commands default `SYNARA_HOME` to `~/.synara`, which keeps dev state under `~/.synara/dev`.
+- Dev commands default `SCIENT_HOME` to `~/.scient` and mirror that value into the inherited `SYNARA_HOME` compatibility variable.
 - Override server CLI-equivalent flags from root dev commands with `--`, for example:
-  `bun run dev -- --home-dir ~/.synara-2`
+  `bun run dev -- --home-dir ~/.scient-2`
 - `bun run start` — Runs the production server (serves built web app as static files).
 - `bun run build` — Builds contracts, web app, and server through Turbo.
 - `bun run typecheck` — Strict TypeScript checks for all packages.
@@ -19,9 +19,9 @@
 ## Desktop `.dmg` packaging notes
 
 - Default build is unsigned/not notarized for local sharing.
-- The DMG build uses `assets/macos-icon-1024.png` as the production app icon source.
-- Desktop production windows load the bundled UI from `synara://app/index.html` (not a `127.0.0.1` document URL).
-- Desktop packaging includes `apps/server/dist` (the `synara` backend) and starts it on loopback with an auth token for WebSocket/API traffic.
+- The DMG build uses `assets/prod/scient-macos-1024.png` as the production app icon source.
+- Desktop production windows load the bundled UI from `scient://app/index.html` (not a `127.0.0.1` document URL).
+- Desktop packaging includes `apps/server/dist` (the Scient backend) and starts it on loopback with an auth token for WebSocket/API traffic.
 - Your tester can still open it on macOS by right-clicking the app and choosing **Open** on first launch.
 - To keep staging files for debugging package contents, run: `bun run dist:desktop:dmg -- --keep-stage`
 - To allow code-signing/notarization when configured in CI/secrets, add: `--signed`.
@@ -33,10 +33,10 @@
 
 ## Running multiple dev instances
 
-Set `SYNARA_DEV_INSTANCE` to any value to deterministically shift all dev ports together.
+Set the inherited `SYNARA_DEV_INSTANCE` compatibility variable to any value to deterministically shift all dev ports together.
 
 - Default ports: server `3773`, web `5733`
 - Shifted ports: `base + offset` (offset is hashed from `SYNARA_DEV_INSTANCE`)
 - Example: `SYNARA_DEV_INSTANCE=branch-a bun run dev:desktop`
 
-If you want full control instead of hashing, set `SYNARA_PORT_OFFSET` to a numeric offset.
+If you want full control instead of hashing, set the inherited `SYNARA_PORT_OFFSET` compatibility variable to a numeric offset.
diff --git a/.docs/workspace-layout.md b/.docs/workspace-layout.md
index 4639dd11d..05b499cf8 100644
--- a/.docs/workspace-layout.md
+++ b/.docs/workspace-layout.md
@@ -2,6 +2,6 @@
 
 - `/apps/server`: Node.js WebSocket server. Wraps Codex app-server, serves the built web app, and opens the browser on start.
 - `/apps/web`: React + Vite UI. Session control, conversation, and provider event rendering. Connects to the server via WebSocket.
-- `/apps/desktop`: Electron shell. Spawns a desktop-scoped `synara` backend process and loads the shared web app.
+- `/apps/desktop`: Electron shell. Spawns the desktop-scoped `scient` backend process and loads the shared web app.
 - `/packages/contracts`: Shared effect/Schema schemas and TypeScript contracts for provider events, WebSocket protocol, and model/session types.
 - `/packages/shared`: Shared runtime utilities consumed by both server and web. Uses explicit subpath exports (e.g. `@synara/shared/git`, `@synara/shared/DrainableWorker`) — no barrel index.
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4ad9ed00d..6cbe1cc41 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -58,7 +58,7 @@ jobs:
         if: runner.os == 'Linux'
         run: node scripts/node-pty-smoke.mjs
 
-      - name: Verify Synara identity
+      - name: Verify Scient identity
         run: bun run brand:check
 
       - name: Format
@@ -148,7 +148,7 @@ jobs:
       - name: Install dependencies
         run: bun install --frozen-lockfile --ignore-scripts
 
-      - name: Verify Synara identity
+      - name: Verify Scient identity
         run: bun run brand:check
 
       - name: Exercise release-only workflow steps
diff --git a/.gitignore b/.gitignore
index 6d696e8e3..54643f173 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,6 +18,8 @@ release/
 /.synara-*/
 /.synara/
 /.synara-*/
+/.scient/electron-dev
+/.scient-*/
 .idea/
 apps/web/.playwright
 apps/web/playwright-report
diff --git a/AGENTS.md b/AGENTS.md
index 8f74b3f21..624e73b8e 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -97,7 +97,7 @@ Reference usage: opening/closing a project and the sidebar sections in `apps/web
 ## Local Dev Instance Isolation
 
 - Never start the default `bun run dev` while another Scient instance is running unless the user explicitly wants shared ports/state.
-- Use an isolated home dir and non-default ports when running alongside the user's own Synara instance, for example: `env -u SYNARA_AUTH_TOKEN SYNARA_PORT_OFFSET=3158 SYNARA_NO_BROWSER=1 bun run dev -- --home-dir ./.scient-pr84 --port 58090`.
+- Use an isolated home dir and non-default ports when running alongside another desktop instance, for example: `env -u SYNARA_AUTH_TOKEN SYNARA_PORT_OFFSET=3158 SYNARA_NO_BROWSER=1 bun run dev -- --home-dir ./.scient-pr84 --port 58090`.
 - Always dry-run first when avoiding conflicts: `env -u SYNARA_AUTH_TOKEN SYNARA_PORT_OFFSET=3158 bun run dev -- --home-dir ./.scient-pr84 --port 58090 --dry-run`.
 - Unset `SYNARA_AUTH_TOKEN` for browser dev instances unless the web app is also configured to connect with that token. If auth is accidentally inherited, the browser WebSocket can be rejected and the UI will show no threads even though SQLite has projects/threads.
 - Check both server and web ports with `lsof -nP -iTCP:<port> -sTCP:LISTEN`. A desktop app can bind `127.0.0.1:<port>` while the dev server binds IPv6 `*:<port>`, and `localhost` may still hit the wrong process.
diff --git a/README.md b/README.md
index 10a167808..ed98f00f3 100644
--- a/README.md
+++ b/README.md
@@ -4,8 +4,6 @@ Scient is a local-first desktop workspace for working with the AI agents and sub
 
 It brings chats, terminals, browser previews, diffs, branches, provider sessions, and handoffs into one focused workspace so you can run agent work without juggling a dozen windows.
 
-![Scient app showing parallel agent threads, terminal output, and project navigation](assets/prod/readme-screenshot.jpeg)
-
 ## What it does
 
 - Use the AI accounts you already pay for: Claude Code, Codex, Antigravity, OpenCode, Cursor, Grok, Kilo Code, and Pi.
diff --git a/apps/marketing/public/screenshot.jpeg b/apps/marketing/public/screenshot.jpeg
deleted file mode 100644
index 5c31530d1..000000000
Binary files a/apps/marketing/public/screenshot.jpeg and /dev/null differ
diff --git a/apps/marketing/src/pages/index.astro b/apps/marketing/src/pages/index.astro
index c5ce7e0d3..e1fb5ce02 100644
--- a/apps/marketing/src/pages/index.astro
+++ b/apps/marketing/src/pages/index.astro
@@ -19,9 +19,6 @@ import { RELEASES_URL } from "../lib/releases";
 
   <a href="/download" class="other-platforms">Other platforms</a>
 
-  <div class="screenshot-wrap">
-    <img src="/screenshot.jpeg" alt="Scient" class="screenshot" />
-  </div>
 </Layout>
 
 <script>
@@ -176,50 +173,6 @@ import { RELEASES_URL } from "../lib/releases";
     text-decoration-color: var(--fg-muted);
   }
 
-  /* ── Screenshot ── */
-
-  .screenshot-wrap {
-    margin: 0 auto;
-    width: min(95vw, 1400px);
-    opacity: 0;
-    transform: scale(0.98);
-    animation: screenshot-in 1s ease-out 0.15s forwards;
-  }
-
-  .screenshot {
-    width: 100%;
-    display: block;
-    border-radius: 16px;
-    border: 1px solid rgba(255, 255, 255, 0.06);
-    mask-image: linear-gradient(to bottom, black 80%, transparent 100%);
-    -webkit-mask-image: linear-gradient(to bottom, black 80%, transparent 100%);
-  }
-
-  .screenshot-wrap::after {
-    content: "";
-    display: block;
-    width: 100%;
-    height: 120px;
-    background: inherit;
-    margin-top: -1px;
-    opacity: 0.04;
-    transform: scaleY(-1);
-    mask-image: linear-gradient(to bottom, black 0%, transparent 60%);
-    -webkit-mask-image: linear-gradient(to bottom, black 0%, transparent 60%);
-    pointer-events: none;
-  }
-
-  @keyframes screenshot-in {
-    from {
-      opacity: 0;
-      transform: scale(0.98);
-    }
-    to {
-      opacity: 1;
-      transform: scale(1);
-    }
-  }
-
   /* ── Mobile ── */
 
   @media (max-width: 640px) {
@@ -231,8 +184,5 @@ import { RELEASES_URL } from "../lib/releases";
       margin-bottom: 4vh;
     }
 
-    .screenshot-wrap {
-      width: 95vw;
-    }
   }
 </style>
diff --git a/apps/server/scripts/cli.ts b/apps/server/scripts/cli.ts
index 742345440..29cecbb38 100644
--- a/apps/server/scripts/cli.ts
+++ b/apps/server/scripts/cli.ts
@@ -13,6 +13,7 @@ import {
 import { resolveCatalogDependencies } from "../../../scripts/lib/resolve-catalog.ts";
 import rootPackageJson from "../../../package.json" with { type: "json" };
 import serverPackageJson from "../package.json" with { type: "json" };
+import { replaceBundledWebClient } from "./replace-bundled-web-client.ts";
 
 class CliError extends Data.TaggedError("CliError")<{
   readonly message: string;
@@ -149,7 +150,6 @@ const buildCmd = Command.make(
   (config) =>
     Effect.gen(function* () {
       const path = yield* Path.Path;
-      const fs = yield* FileSystem.FileSystem;
       const repoRoot = yield* RepoRoot;
       const serverDir = path.join(repoRoot, "apps/server");
 
@@ -167,8 +167,7 @@ const buildCmd = Command.make(
       const webDist = path.join(repoRoot, "apps/web/dist");
       const clientTarget = path.join(serverDir, "dist/client");
 
-      if (yield* fs.exists(webDist)) {
-        yield* fs.copy(webDist, clientTarget);
+      if (yield* replaceBundledWebClient(webDist, clientTarget)) {
         yield* applyDevelopmentIconOverrides(repoRoot, serverDir);
         yield* Effect.log("[cli] Bundled web app into dist/client");
       } else {
diff --git a/apps/server/scripts/replace-bundled-web-client.test.ts b/apps/server/scripts/replace-bundled-web-client.test.ts
new file mode 100644
index 000000000..5cbb7588d
--- /dev/null
+++ b/apps/server/scripts/replace-bundled-web-client.test.ts
@@ -0,0 +1,42 @@
+import * as NodeServices from "@effect/platform-node/NodeServices";
+import { Effect, FileSystem, Path } from "effect";
+import { describe, expect, it } from "vitest";
+
+import { replaceBundledWebClient } from "./replace-bundled-web-client.ts";
+
+describe("replaceBundledWebClient", () => {
+  it("removes stale client assets before copying the current web build", async () => {
+    await Effect.gen(function* () {
+      const fs = yield* FileSystem.FileSystem;
+      const path = yield* Path.Path;
+      const root = yield* fs.makeTempDirectoryScoped({ prefix: "scient-web-client-" });
+      const webDist = path.join(root, "web-dist");
+      const clientTarget = path.join(root, "server-dist", "client");
+
+      yield* fs.makeDirectory(webDist, { recursive: true });
+      yield* fs.makeDirectory(clientTarget, { recursive: true });
+      yield* fs.writeFileString(path.join(webDist, "index.html"), "current");
+      yield* fs.writeFileString(path.join(clientTarget, "stale-logo.svg"), "obsolete");
+
+      expect(yield* replaceBundledWebClient(webDist, clientTarget)).toBe(true);
+      expect(yield* fs.readFileString(path.join(clientTarget, "index.html"))).toBe("current");
+      expect(yield* fs.exists(path.join(clientTarget, "stale-logo.svg"))).toBe(false);
+    }).pipe(Effect.scoped, Effect.provide(NodeServices.layer), Effect.runPromise);
+  });
+
+  it("leaves the existing client untouched when the web build is absent", async () => {
+    await Effect.gen(function* () {
+      const fs = yield* FileSystem.FileSystem;
+      const path = yield* Path.Path;
+      const root = yield* fs.makeTempDirectoryScoped({ prefix: "scient-web-client-" });
+      const clientTarget = path.join(root, "server-dist", "client");
+      const existingAsset = path.join(clientTarget, "index.html");
+
+      yield* fs.makeDirectory(clientTarget, { recursive: true });
+      yield* fs.writeFileString(existingAsset, "existing");
+
+      expect(yield* replaceBundledWebClient(path.join(root, "missing"), clientTarget)).toBe(false);
+      expect(yield* fs.readFileString(existingAsset)).toBe("existing");
+    }).pipe(Effect.scoped, Effect.provide(NodeServices.layer), Effect.runPromise);
+  });
+});
diff --git a/apps/server/scripts/replace-bundled-web-client.ts b/apps/server/scripts/replace-bundled-web-client.ts
new file mode 100644
index 000000000..e1a7a0387
--- /dev/null
+++ b/apps/server/scripts/replace-bundled-web-client.ts
@@ -0,0 +1,18 @@
+// FILE: replace-bundled-web-client.ts
+// Purpose: Replaces the bundled web client without retaining files from older builds.
+
+import { Effect, FileSystem } from "effect";
+
+export const replaceBundledWebClient = Effect.fn("replaceBundledWebClient")(function* (
+  webDist: string,
+  clientTarget: string,
+) {
+  const fs = yield* FileSystem.FileSystem;
+  if (!(yield* fs.exists(webDist))) {
+    return false;
+  }
+
+  yield* fs.remove(clientTarget, { force: true, recursive: true });
+  yield* fs.copy(webDist, clientTarget);
+  return true;
+});
diff --git a/apps/server/src/git/Layers/GitCore.test.ts b/apps/server/src/git/Layers/GitCore.test.ts
index c5cdb0f99..a83081f28 100644
--- a/apps/server/src/git/Layers/GitCore.test.ts
+++ b/apps/server/src/git/Layers/GitCore.test.ts
@@ -829,7 +829,7 @@ it.layer(TestLayer)("git integration", (it) => {
 
         const stashList = yield* git(tmp, ["stash", "list"]);
         expect(stashList).toContain("pre-existing stash");
-        expect(stashList).not.toContain("synara: stash before switching to feature");
+        expect(stashList).not.toContain("scient: stash before switching to feature");
         expect(yield* readTextFile(path.join(tmp, "README.md"))).toBe("dirty changes\n");
       }),
     );
@@ -859,7 +859,7 @@ it.layer(TestLayer)("git integration", (it) => {
         expect(yield* readTextFile(path.join(tmp, "README.md"))).toBe("conflicting content\n");
         expect((yield* git(tmp, ["status", "--short"])).trim()).toBe("");
         expect(yield* git(tmp, ["stash", "list"])).toContain(
-          "synara: stash before switching to conflicting",
+          "scient: stash before switching to conflicting",
         );
       }),
     );
diff --git a/apps/server/src/git/Layers/GitCore.ts b/apps/server/src/git/Layers/GitCore.ts
index ef1eb7df0..5c2fb0d10 100644
--- a/apps/server/src/git/Layers/GitCore.ts
+++ b/apps/server/src/git/Layers/GitCore.ts
@@ -47,7 +47,7 @@ const EMPTY_TREE_OBJECT_ID = "4b825dc642cb6eb9a060e54bf8d69288fbee4904";
 const WORKING_TREE_DIFF_TIMEOUT_MS = 15_000;
 const MAX_UNTRACKED_DIFF_CONCURRENCY = 4;
 const MOVE_AWARE_WORKING_TREE_STATUS_TIMEOUT_MS = 15_000;
-const AUTO_DETACHED_WORKTREE_DIRNAME = "synara";
+const AUTO_DETACHED_WORKTREE_DIRNAME = "scient";
 const NON_REPOSITORY_STATUS_DETAILS = Object.freeze({
   isRepo: false,
   hasOriginRemote: false,
@@ -2445,7 +2445,7 @@ export const makeGitCore = (options?: { executeOverride?: GitCoreShape["execute"
         yield* executeGit(
           "GitCore.stashAndCheckout.stashPush",
           input.cwd,
-          ["stash", "push", "-u", "-m", `synara: stash before switching to ${input.branch}`],
+          ["stash", "push", "-u", "-m", `scient: stash before switching to ${input.branch}`],
           {
             timeoutMs: 30_000,
             fallbackErrorMessage: "git stash failed",
diff --git a/apps/server/src/git/Layers/GitManager.test.ts b/apps/server/src/git/Layers/GitManager.test.ts
index b2752afcb..a249efbbd 100644
--- a/apps/server/src/git/Layers/GitManager.test.ts
+++ b/apps/server/src/git/Layers/GitManager.test.ts
@@ -2323,7 +2323,7 @@ it.layer(GitManagerTestLayer)("GitManager", (it) => {
           mode: "worktree",
         });
 
-        expect(result.branch).toBe("synara/pr-91/main");
+        expect(result.branch).toBe("scient/pr-91/main");
         expect(result.worktreePath).not.toBeNull();
         expect((yield* runGit(repoDir, ["branch", "--show-current"])).stdout.trim()).toBe("main");
         expect((yield* runGit(repoDir, ["rev-parse", "main"])).stdout.trim()).toBe(mainBefore);
@@ -2332,7 +2332,7 @@ it.layer(GitManagerTestLayer)("GitManager", (it) => {
             "branch",
             "--show-current",
           ])).stdout.trim(),
-        ).toBe("synara/pr-91/main");
+        ).toBe("scient/pr-91/main");
       }),
   );
 
@@ -2384,7 +2384,7 @@ it.layer(GitManagerTestLayer)("GitManager", (it) => {
           mode: "worktree",
         });
 
-        expect(result.branch).toBe("synara/pr-92/main");
+        expect(result.branch).toBe("scient/pr-92/main");
         expect((yield* runGit(repoDir, ["rev-parse", "main"])).stdout.trim()).toBe(localMainBefore);
         expect(
           (yield* runGit(result.worktreePath as string, [
diff --git a/apps/server/src/git/Layers/GitManager.ts b/apps/server/src/git/Layers/GitManager.ts
index e26f1fa4e..31e8e1ef3 100644
--- a/apps/server/src/git/Layers/GitManager.ts
+++ b/apps/server/src/git/Layers/GitManager.ts
@@ -157,7 +157,7 @@ function resolvePullRequestWorktreeLocalBranchName(
 
   const sanitizedHeadBranch = sanitizeBranchFragment(pullRequest.headBranch).trim();
   const suffix = sanitizedHeadBranch.length > 0 ? sanitizedHeadBranch : "head";
-  return `synara/pr-${pullRequest.number}/${suffix}`;
+  return `scient/pr-${pullRequest.number}/${suffix}`;
 }
 
 function parseRepositoryOwnerLogin(nameWithOwner: string | null): string | null {
@@ -2044,11 +2044,11 @@ The local stash entry was kept for recovery.`,
 
       const preservedLocalStash = yield* stashWorkingTree(
         input.cwd,
-        `synara preserve local handoff ${randomUUID()}`,
+        `scient preserve local handoff ${randomUUID()}`,
       );
       const sourceStash = yield* stashWorkingTree(
         input.worktreePath,
-        `synara handoff to local ${randomUUID()}`,
+        `scient handoff to local ${randomUUID()}`,
       );
 
       yield* gitCore
@@ -2211,7 +2211,7 @@ The local stash entry was kept for recovery.`,
 
     const sourceStash = yield* stashWorkingTree(
       input.cwd,
-      `synara handoff to worktree ${randomUUID()}`,
+      `scient handoff to worktree ${randomUUID()}`,
     );
     const sourceBranch = currentLocalStatus.branch ?? input.currentBranch ?? null;
     const sourceHeadRef = yield* readHeadRef(input.cwd);
diff --git a/apps/server/src/profileStats.ts b/apps/server/src/profileStats.ts
index 2b26cf500..bed484b0a 100644
--- a/apps/server/src/profileStats.ts
+++ b/apps/server/src/profileStats.ts
@@ -390,15 +390,15 @@ function compareNullableText(
 function deriveInitials(name: string): string {
   const parts = name.split(/[\s._-]+/u).filter((part) => part.length > 0);
   if (parts.length >= 2) {
-    return `${parts[0]?.[0] ?? ""}${parts[1]?.[0] ?? ""}`.toUpperCase() || "SY";
+    return `${parts[0]?.[0] ?? ""}${parts[1]?.[0] ?? ""}`.toUpperCase() || "SC";
   }
   const single = parts[0] ?? name;
-  return (single.slice(0, 2) || "SY").toUpperCase();
+  return (single.slice(0, 2) || "SC").toUpperCase();
 }
 
 function sanitizeHandle(basename: string): string {
   const slug = basename.toLowerCase().replace(/[^a-z0-9_]/gu, "");
-  return `@${slug || "synara"}`;
+  return `@${slug || "scient"}`;
 }
 
 function formatHour(hour: number): string {
diff --git a/apps/server/src/terminal/Layers/BunPTY.ts b/apps/server/src/terminal/Layers/BunPTY.ts
index e40c40f3e..832ef86f7 100644
--- a/apps/server/src/terminal/Layers/BunPTY.ts
+++ b/apps/server/src/terminal/Layers/BunPTY.ts
@@ -149,7 +149,7 @@ export const layer = Layer.effect(
   Effect.gen(function* () {
     if (process.platform === "win32") {
       return yield* Effect.die(
-        "Bun PTY terminal support is unavailable on Windows. Please use Node.js (e.g. by running `npx synara`) instead.",
+        "Bun PTY terminal support is unavailable on Windows. Build the Scient CLI, then run it with Node.js (for example, `node apps/server/dist/index.mjs`).",
       );
     }
     return {
diff --git a/apps/web/src/components/ThreadWorktreeHandoffDialog.tsx b/apps/web/src/components/ThreadWorktreeHandoffDialog.tsx
index eaccf3f9f..a735de270 100644
--- a/apps/web/src/components/ThreadWorktreeHandoffDialog.tsx
+++ b/apps/web/src/components/ThreadWorktreeHandoffDialog.tsx
@@ -85,7 +85,7 @@ export function ThreadWorktreeHandoffDialog({
                     onOpenChange(false);
                   }
                 }}
-                placeholder="synara/feature-name"
+                placeholder="scient/feature-name"
               />
             </label>
           </form>
diff --git a/apps/web/src/components/chat/environment/environmentPullRequest.logic.test.ts b/apps/web/src/components/chat/environment/environmentPullRequest.logic.test.ts
index 2be1e0738..cc23a5432 100644
--- a/apps/web/src/components/chat/environment/environmentPullRequest.logic.test.ts
+++ b/apps/web/src/components/chat/environment/environmentPullRequest.logic.test.ts
@@ -142,7 +142,7 @@ describe("buildResolveConflictsPrompt", () => {
   });
 
   it("points at the current checkout instead of asserting the local branch name", () => {
-    // Fork threads check the PR out under `synara/pr-N/<branch>`, so the prompt must not
+    // Fork threads check the PR out under `scient/pr-N/<branch>`, so the prompt must not
     // claim the local branch is named after the GitHub head branch.
     const prompt = buildResolveConflictsPrompt({
       prNumber: 488,
diff --git a/apps/web/src/components/chat/environment/environmentPullRequest.logic.ts b/apps/web/src/components/chat/environment/environmentPullRequest.logic.ts
index 18d3253f4..7443261b9 100644
--- a/apps/web/src/components/chat/environment/environmentPullRequest.logic.ts
+++ b/apps/web/src/components/chat/environment/environmentPullRequest.logic.ts
@@ -314,7 +314,7 @@ export function buildFixFindingsPrompt(input: {
 
 // Handed to the agent by the conflicts row's "Fix" button. The prompt names the PR branch
 // as it exists on GitHub but points the agent at the current checkout: fork threads check
-// the PR out under a different local branch name (e.g. `synara/pr-N/<branch>`).
+// the PR out under a different local branch name (e.g. `scient/pr-N/<branch>`).
 export function buildResolveConflictsPrompt(input: {
   prNumber: number;
   prUrl: string;
diff --git a/apps/web/src/components/profile/ShareDialog.tsx b/apps/web/src/components/profile/ShareDialog.tsx
index b8ef13ec2..25ea44462 100644
--- a/apps/web/src/components/profile/ShareDialog.tsx
+++ b/apps/web/src/components/profile/ShareDialog.tsx
@@ -129,7 +129,7 @@ export function ShareDialog({
     try {
       const blob = await renderNodeToPngBlob(node, CARD_EXPORT_SIZE);
       if (blob) {
-        downloadBlob(blob, `synara-stats-${stats.timezone.today}.png`);
+        downloadBlob(blob, `scient-stats-${stats.timezone.today}.png`);
         setStatus("Saved PNG to your downloads.");
       } else {
         setStatus("Could not render the image.");
diff --git a/assets/prod/readme-screenshot.jpeg b/assets/prod/readme-screenshot.jpeg
deleted file mode 100644
index 5c31530d1..000000000
Binary files a/assets/prod/readme-screenshot.jpeg and /dev/null differ
diff --git a/scripts/build-desktop-artifact-mac-config.test.ts b/scripts/build-desktop-artifact-mac-config.test.ts
index 0abdeaf62..88a8f13b0 100644
--- a/scripts/build-desktop-artifact-mac-config.test.ts
+++ b/scripts/build-desktop-artifact-mac-config.test.ts
@@ -64,12 +64,12 @@ describe("createDesktopPlatformBuildConfig", () => {
     assert.deepStrictEqual(linux.asarUnpack, ["node_modules/node-pty/**"]);
     assert.deepStrictEqual(linux.linux, {
       target: ["AppImage"],
-      executableName: "synara",
+      executableName: "scient",
       icon: "icon.png",
       category: "Development",
       desktop: {
         entry: {
-          StartupWMClass: "synara",
+          StartupWMClass: "scient",
         },
       },
     });
diff --git a/scripts/check-brand-identity.test.ts b/scripts/check-brand-identity.test.ts
index a167db676..6257489e5 100644
--- a/scripts/check-brand-identity.test.ts
+++ b/scripts/check-brand-identity.test.ts
@@ -2,7 +2,9 @@ import { describe, expect, it } from "vitest";
 
 import {
   findBrandIdentityViolations,
+  findRetiredPublicVisualAssetViolations,
   findScientIdentityViolations,
+  findScientOwnedOutputIdentityViolations,
   findScientSurfaceIdentityViolations,
   findVisualBrandAssetViolations,
 } from "./check-brand-identity";
@@ -44,6 +46,17 @@ describe("brand identity guard", () => {
     ).toEqual([]);
   });
 
+  it("rejects unrelated PapiLab product copy inside an allowlisted migration UI", () => {
+    expect(
+      findBrandIdentityViolations([
+        {
+          path: "apps/web/src/components/ScientProjectInitializationDialog.tsx",
+          contents: "Welcome to PapiLab",
+        },
+      ]),
+    ).toHaveLength(1);
+  });
+
   it("does not match ordinary numeric type names or canonical Synara text", () => {
     expect(
       findBrandIdentityViolations([
@@ -67,8 +80,8 @@ describe("brand identity guard", () => {
   });
 
   it("requires user-facing raster assets to match a visually approved digest", () => {
-    const approvedContents = new TextEncoder().encode("approved Synara screenshot");
-    const approvedDigest = "a553296ca5a2d3ad7b64a6bc1b36c2834da750eae6611642177482b99ba85bd8";
+    const approvedContents = new TextEncoder().encode("approved product screenshot");
+    const approvedDigest = "c37f0f3b75ede427b20d45d5fa32bf0f417d2bbae98de71caeb27d8aff9148fe";
     const approvedDigests = new Map([["screenshot.jpeg", approvedDigest]]);
 
     expect(
@@ -86,6 +99,16 @@ describe("brand identity guard", () => {
     expect(findVisualBrandAssetViolations([], approvedDigests)).toHaveLength(1);
   });
 
+  it("rejects restoring retired public screenshots without a new visual review", () => {
+    expect(
+      findRetiredPublicVisualAssetViolations(
+        [{ path: "screenshot.jpeg", contents: new Uint8Array() }],
+        new Set(["screenshot.jpeg"]),
+      ),
+    ).toHaveLength(1);
+    expect(findRetiredPublicVisualAssetViolations([], new Set(["screenshot.jpeg"]))).toEqual([]);
+  });
+
   it("requires Scient identity in distributable package metadata", () => {
     const requirements = new Map([
       ["package.json", ['name: "scient-desktop"', 'description: "Scient desktop build"']],
@@ -151,4 +174,52 @@ describe("brand identity guard", () => {
       ),
     ).toEqual([]);
   });
+
+  it("rejects old identity in bounded Scient-owned generated outputs", () => {
+    const patterns = new Map<string, readonly RegExp[]>([
+      ["platform.ts", [/executableName:\s*["']synara["']/i]],
+      ["git.ts", [/synara\/pr-/i]],
+    ]);
+
+    expect(
+      findScientOwnedOutputIdentityViolations(
+        [
+          { path: "platform.ts", contents: 'executableName: "synara"' },
+          { path: "git.ts", contents: "return `synara/pr-${number}`;" },
+        ],
+        patterns,
+      ),
+    ).toHaveLength(2);
+    expect(
+      findScientOwnedOutputIdentityViolations(
+        [
+          { path: "platform.ts", contents: 'executableName: "scient"' },
+          { path: "git.ts", contents: "return `scient/pr-${number}`;" },
+        ],
+        patterns,
+      ),
+    ).toEqual([]);
+  });
+
+  it("rejects Windows recovery guidance that assumes an unpublished CLI package", () => {
+    const path = "apps/server/src/terminal/Layers/BunPTY.ts";
+
+    expect(
+      findScientOwnedOutputIdentityViolations([
+        {
+          path,
+          contents: "Please run `npx --package @scientfactory/cli scient` instead.",
+        },
+      ]),
+    ).toHaveLength(1);
+    expect(
+      findScientOwnedOutputIdentityViolations([
+        {
+          path,
+          contents:
+            "Build the Scient CLI, then run it with Node.js (for example, `node apps/server/dist/index.mjs`).",
+        },
+      ]),
+    ).toEqual([]);
+  });
 });
diff --git a/scripts/check-brand-identity.ts b/scripts/check-brand-identity.ts
index c5bd571e5..68577a392 100644
--- a/scripts/check-brand-identity.ts
+++ b/scripts/check-brand-identity.ts
@@ -44,18 +44,12 @@ const forbiddenPatterns = [
   new RegExp(escapeRegExp(incorrectBundleDomain), "i"),
 ] as const;
 
-// Raster images cannot be searched for embedded text. Keep the user-facing
-// screenshots behind reviewed digests so changing either one requires another
-// explicit visual identity audit instead of silently bypassing this guard.
-const approvedVisualAssetDigests = new Map<string, string>([
-  [
-    "apps/marketing/public/screenshot.jpeg",
-    "0b4be139f13dd08885a1aac26fc1f7c623697db157777d16360e985c93d47bcf",
-  ],
-  [
-    "assets/prod/readme-screenshot.jpeg",
-    "0b4be139f13dd08885a1aac26fc1f7c623697db157777d16360e985c93d47bcf",
-  ],
+// There is no currently approved product screenshot. New raster screenshots
+// must be added here only after a visual identity review.
+const approvedVisualAssetDigests = new Map<string, string>();
+const retiredPublicVisualAssetPaths = new Set([
+  "apps/marketing/public/screenshot.jpeg",
+  "assets/prod/readme-screenshot.jpeg",
 ]);
 
 export interface BrandIdentityFile {
@@ -96,6 +90,12 @@ const requiredScientIdentityText = new Map<string, readonly string[]>([
     ],
   ],
   ["apps/web/src/branding.ts", ['APP_BASE_NAME = "Scient"']],
+  [
+    "apps/server/src/terminal/Layers/BunPTY.ts",
+    [
+      "Build the Scient CLI, then run it with Node.js (for example, `node apps/server/dist/index.mjs`).",
+    ],
+  ],
   [
     "scripts/build-desktop-artifact.ts",
     ['name: "scient-desktop"', 'description: "Scient desktop build"', 'author: "Yaacov Corcos"'],
@@ -131,12 +131,22 @@ const requiredScientIdentityText = new Map<string, readonly string[]>([
   ["apps/marketing/src/pages/index.astro", ["Scient is a scientific workspace"]],
   ["apps/marketing/src/pages/download.astro", ["Download — Scient"]],
   ["apps/marketing/src/layouts/Layout.astro", ["Scient — A local-first scientific workspace"]],
+  [".gitignore", ["/.scient/electron-dev", "/.scient-*/"]],
 ]);
 
 // These files render, export, or transmit Scient-owned product copy. Internal
-// Synara package/type names remain intentionally outside this list so the fork
-// can preserve upstream structure without leaking predecessor branding to users.
+// Synara package/type names remain intentionally outside this list so inherited
+// source structure can stay stable without leaking predecessor branding to users.
 const scientOnlySurfacePaths = new Set([
+  ".claude/skills/verify/SKILL.md",
+  ".docs/architecture.md",
+  ".docs/codex-prerequisites.md",
+  ".docs/encyclopedia.md",
+  ".docs/quick-start.md",
+  ".docs/runtime-modes.md",
+  ".docs/scripts.md",
+  ".docs/workspace-layout.md",
+  "AGENTS.md",
   "README.md",
   "CONTRIBUTING.md",
   "KEYBINDINGS.md",
@@ -175,15 +185,18 @@ const scientOnlySurfacePaths = new Set([
   "apps/server/src/providerUsage/providers/codex.ts",
   "apps/server/src/studioWorkspaceScaffold.ts",
   "apps/server/src/terminal/managedTerminalWrappers.ts",
+  "apps/server/src/terminal/Layers/BunPTY.ts",
   "apps/web/src/components/AppSnapCoordinator.tsx",
   "apps/web/src/components/AppSnapWelcomeDialog.tsx",
   "apps/web/src/components/BranchToolbarBranchSelector.tsx",
+  "apps/web/src/components/ThreadWorktreeHandoffDialog.tsx",
   "apps/web/src/components/ChatView.logic.ts",
   "apps/web/src/components/ChatView.tsx",
   "apps/web/src/components/Sidebar.tsx",
   "apps/web/src/components/chat/ComposerCommandMenu.tsx",
   "apps/web/src/components/desktopUpdate.logic.ts",
   "apps/web/src/components/profile/ShareCard.tsx",
+  "apps/web/src/components/profile/ShareDialog.tsx",
   "apps/web/src/components/profile/shareCardExport.ts",
   "apps/web/src/components/pullRequest/PullRequestsUnavailableState.tsx",
   "apps/web/src/components/settings/ProfileSettingsPanel.tsx",
@@ -197,6 +210,61 @@ const scientOnlySurfacePaths = new Set([
   "scripts/lib/release-update-policy.ts",
 ]);
 
+// These paths contain inherited implementation identifiers that must remain
+// stable for upstream intake. Only reject the old names in values that create
+// new Scient-owned product state or define distributable identity.
+const forbiddenScientOwnedOutputPatterns = new Map<string, readonly RegExp[]>([
+  [".github/workflows/ci.yml", [/\bVerify Synara identity\b/i]],
+  [
+    "scripts/lib/desktop-platform-build-config.ts",
+    [/executableName:\s*["']synara["']/i, /StartupWMClass:\s*["']synara["']/i],
+  ],
+  ["apps/web/src/components/profile/ShareDialog.tsx", [/synara-stats-/i]],
+  ["apps/web/src/components/ThreadWorktreeHandoffDialog.tsx", [/placeholder=["']synara\//i]],
+  ["apps/server/src/profileStats.ts", [/\|\|\s*["']SY["']/, /\|\|\s*["']synara["']/i]],
+  [
+    "apps/server/src/terminal/Layers/BunPTY.ts",
+    [/npx\s+synara\b/i, /npx\s+--package\s+@scientfactory\/cli\s+scient\b/i],
+  ],
+  [
+    "apps/server/src/git/Layers/GitCore.ts",
+    [/AUTO_DETACHED_WORKTREE_DIRNAME\s*=\s*["']synara["']/i, /synara:\s+stash before switching/i],
+  ],
+  [
+    "apps/server/src/git/Layers/GitManager.ts",
+    [/synara\/pr-/i, /synara preserve local handoff/i, /synara handoff to (?:local|worktree)/i],
+  ],
+]);
+
+export function findScientOwnedOutputIdentityViolations(
+  files: readonly BrandIdentityFile[],
+  patterns: ReadonlyMap<string, readonly RegExp[]> = forbiddenScientOwnedOutputPatterns,
+): BrandIdentityViolation[] {
+  const violations: BrandIdentityViolation[] = [];
+  for (const file of files) {
+    const filePatterns = patterns.get(file.path);
+    if (!filePatterns) continue;
+    for (const [index, line] of file.contents.split(/\r?\n/).entries()) {
+      if (!filePatterns.some((pattern) => pattern.test(line))) continue;
+      violations.push({ path: file.path, line: index + 1, text: line.trim() });
+    }
+  }
+  return violations;
+}
+
+export function findRetiredPublicVisualAssetViolations(
+  files: readonly BrandIdentityBinaryFile[],
+  retiredPaths: ReadonlySet<string> = retiredPublicVisualAssetPaths,
+): BrandIdentityViolation[] {
+  return files
+    .filter((file) => retiredPaths.has(file.path))
+    .map((file) => ({
+      path: file.path,
+      line: null,
+      text: "Retired public screenshot must not be restored without a new visual review.",
+    }));
+}
+
 export function findScientSurfaceIdentityViolations(
   files: readonly BrandIdentityFile[],
   surfacePaths: ReadonlySet<string> = scientOnlySurfacePaths,
@@ -244,9 +312,17 @@ const legacyPapiLabCompatibilityPaths = new Set([
 
 function isAllowedLegacyPapiLabReference(path: string, value: string): boolean {
   if (!new RegExp(escapeRegExp(retiredPapiLabName), "i").test(value)) return false;
-  if (legacyPapiLabCompatibilityPaths.has(path)) return true;
-  if (path !== "apps/desktop/src/main.ts") return false;
-  return /(?:seedDesktopUserDataProfileFromPapiLab|seedScientHomeFromPapiLab|PAPILAB_HOME|LegacyPapiLab|PapiLab(?:Home|Desktop|Storage|Profile)|LEGACY_PAPILAB|papilab[:./-]|\.papilab|Failed to (?:seed Scient (?:home|profile) from PapiLab|migrate PapiLab browser state into Scient))/i.test(
+  if (
+    path === "scripts/check-brand-identity.ts" ||
+    path === "scripts/check-brand-identity.test.ts"
+  ) {
+    return true;
+  }
+  if (legacyPapiLabCompatibilityPaths.has(path) && value === path) return true;
+  if (!legacyPapiLabCompatibilityPaths.has(path) && path !== "apps/desktop/src/main.ts") {
+    return false;
+  }
+  return /(?:seedDesktopUserDataProfileFromPapiLab|seedScientHomeFromPapiLab|resolvePapiLabDesktopUserDataPath|exportLegacyPapiLabStorageSnapshot|configuredLegacyPapiLabHome|legacyPapiLab|migratingPapiLabProject|PAPILAB_[A-Z0-9_]+|PapiLab(?:Home|Desktop|Storage|Profile)|legacy-papilab-compatible|papilab[:./-]|\.papilab|["']papilab(?:-dev)?["']|\/papilab(?:-dev)?["']|PapiLab\s+(?:Baseline|browser state|home|identit(?:y|ies)|intact|key namespace|keys|managed|metadata|path|profile|project identity)|(?:legacy|migrat(?:e|es|ed|ing|ion)|previous|rollback|seed|source|upgrade|verified)[^\n]{0,100}PapiLab|PapiLab[^\n]{0,100}(?:legacy|migrat(?:e|es|ed|ing|ion)|rollback|seed|source|upgrade|without deleting|without overwriting))/i.test(
     value,
   );
 }
@@ -341,6 +417,8 @@ function main(): void {
     ...findBrandIdentityViolations(searchableFiles),
     ...findScientIdentityViolations(searchableFiles),
     ...findScientSurfaceIdentityViolations(searchableFiles),
+    ...findScientOwnedOutputIdentityViolations(searchableFiles),
+    ...findRetiredPublicVisualAssetViolations(trackedFiles),
     ...findVisualBrandAssetViolations(trackedFiles),
   ];
   if (violations.length === 0) {
diff --git a/scripts/lib/desktop-platform-build-config.ts b/scripts/lib/desktop-platform-build-config.ts
index 298a22bb2..ca18114a2 100644
--- a/scripts/lib/desktop-platform-build-config.ts
+++ b/scripts/lib/desktop-platform-build-config.ts
@@ -100,12 +100,12 @@ export function createDesktopPlatformBuildConfig(
       ...nativePackaging,
       linux: {
         target: [input.target],
-        executableName: "synara",
+        executableName: "scient",
         icon: "icon.png",
         category: "Development",
         desktop: {
           entry: {
-            StartupWMClass: "synara",
+            StartupWMClass: "scient",
           },
         },
       },
diff --git a/scripts/release-smoke.ts b/scripts/release-smoke.ts
index 3e0fdc3e3..de6592ce3 100644
--- a/scripts/release-smoke.ts
+++ b/scripts/release-smoke.ts
@@ -16,6 +16,7 @@ import {
 } from "@synara/shared/desktopIdentity";
 
 import { DESKTOP_STAGE_DEPENDENCY_OVERRIDES } from "./lib/desktop-stage-dependency-overrides.ts";
+import { createDesktopPlatformBuildConfig } from "./lib/desktop-platform-build-config.ts";
 import {
   readReleaseUpdatePolicyConfig,
   resolveReleaseUpdatePolicy,
@@ -126,6 +127,16 @@ function verifyCanonicalIdentity(): void {
     );
   }
 
+  const linux = createDesktopPlatformBuildConfig({ platform: "linux", target: "AppImage" }).linux;
+  if (!linux || linux.executableName !== "scient") {
+    throw new Error("Expected Linux desktop releases to install the scient executable.");
+  }
+  const startupWmClass = (linux.desktop as { entry?: { StartupWMClass?: unknown } } | undefined)
+    ?.entry?.StartupWMClass;
+  if (startupWmClass !== "scient") {
+    throw new Error("Expected Linux desktop releases to use the Scient StartupWMClass.");
+  }
+
   const releasePolicy = readReleaseUpdatePolicyConfig(repoRoot);
   const resolvedPolicy = resolveReleaseUpdatePolicy("9.9.9", releasePolicy);
   if (