diff --git a/AGENT-INSTALL.md b/AGENT-INSTALL.md
index 3b00d6c..6c7d3d3 100644
--- a/AGENT-INSTALL.md
+++ b/AGENT-INSTALL.md
@@ -119,10 +119,11 @@ Remove only the pieces that are actually present — check for each first. If no
 2. **Remove the widget snippets** from the layout/template: the `<script src="https://cdn.patchstack.com/patchstack-widget.js">` tag and any `PatchstackWidget.init(...)` call (which may live in a separate client component/plugin/effect). Afterwards, grep the repo for `patchstack-widget` and `PatchstackWidget` to confirm nothing remains.
 3. **Remove runtime protection before uninstalling the package.** Delete the connector-managed guard/rules files and remove only their managed imports, middleware registrations, tunnel code, and `#region patchstack…` blocks from the framework/server files. Preserve unrelated middleware and application code. Run `rg "patchstack|x-ps-target"` (or the available equivalent) afterwards and inspect every remaining source hit.
 4. **Remove the hooks from `package.json` scripts.** If a hook was chained (e.g. `"postbuild": "existing-command && patchstack-connect mark-build"`), remove only the `patchstack-connect …` part and keep the rest; if removal leaves a script empty, delete the key.
-5. **Uninstall the package** with the manager matching the lockfile: `npm uninstall` / `pnpm remove` / `yarn remove` / `bun remove` `@patchstack/connect`. Don't hand-edit `node_modules` or the lockfile.
-6. **Delete `.patchstackrc.json`** and remove `PATCHSTACK_SITE_UUID`, `PATCHSTACK_API_KEY` (and public-prefixed variants like `NEXT_PUBLIC_PATCHSTACK_SITE_UUID`) from env files and CI variables.
-7. **Commit** the changes. Reporting stops immediately. The `window.__PATCHSTACK_PROD__` flag that `mark-build` injected lives only in build output, never in source — the next build simply won't contain it (rebuild if build output is committed).
+5. **Signal Patchstack that the package is being removed**: run `npx @patchstack/connect uninstall` (while the package is still installed and `.patchstackrc.json` still exists). If the site was never claimed, this deletes its anonymous record on Patchstack; if the site is claimed, it is only flagged — the record stays until its owner removes it in the dashboard. A failed signal must not stop the uninstall; continue with the remaining steps.
+6. **Uninstall the package** with the manager matching the lockfile: `npm uninstall` / `pnpm remove` / `yarn remove` / `bun remove` `@patchstack/connect`. Don't hand-edit `node_modules` or the lockfile.
+7. **Delete `.patchstackrc.json`** and remove `PATCHSTACK_SITE_UUID`, `PATCHSTACK_API_KEY` (and public-prefixed variants like `NEXT_PUBLIC_PATCHSTACK_SITE_UUID`) from env files and CI variables.
+8. **Commit** the changes. Reporting stops immediately. The `window.__PATCHSTACK_PROD__` flag that `mark-build` injected lives only in build output, never in source — the next build simply won't contain it (rebuild if build output is committed).
 
-Local removal does not delete the site record on Patchstack's side. An unclaimed site is an anonymous record that stops receiving reports; a claimed site is removed by the user in their dashboard at https://app.patchstack.com. There is no CLI command for account-side deletion — do not invent one, and never attempt to authenticate or remove the site on the user's behalf.
+The `uninstall` signal is the only account-side effect local removal can have: it deletes an *unclaimed* (anonymous) record and merely flags a *claimed* one. A claimed site keeps using a site slot until its owner removes it in the dashboard at https://app.patchstack.com — end your report by telling the user this, alongside the site UUID from step 1. Never attempt to authenticate or remove a claimed site on the user's behalf.
 
 The reverse also holds: removing the site on Patchstack's side (dashboard delete or the widget's uninstall flow) does not touch these local files — they must still be removed with the steps above. `npx @patchstack/connect status` shows `Site status: removed from Patchstack` in that state.
diff --git a/src/cli.ts b/src/cli.ts
index 53d6bc9..d2df467 100644
--- a/src/cli.ts
+++ b/src/cli.ts
@@ -3,7 +3,13 @@ import { readFileSync, writeFileSync } from 'node:fs';
 import { scanLockfile } from './parsers/index.js';
 import { buildWirePayload } from './normalize.js';
 import { computeManifestChecksum } from './checksum.js';
-import { DEFAULT_ENDPOINT, buildClaimUrl, fetchSiteStatus, postManifest } from './client.js';
+import {
+  DEFAULT_ENDPOINT,
+  buildClaimUrl,
+  fetchSiteStatus,
+  postManifest,
+  postPackageRemoved,
+} from './client.js';
 import {
   assertDemoDependency,
   assertPersistedSiteUuid,
@@ -55,6 +61,12 @@ Usage:
   patchstack-connect status [options]                Show current configuration and whether the
                                                      site still exists on Patchstack (active /
                                                      removed)
+  patchstack-connect uninstall [options]             Signal Patchstack that this package is being
+                                                     removed from the project. An unclaimed site
+                                                     record is deleted; a claimed site is flagged
+                                                     for its owner to remove in the dashboard.
+                                                     Does NOT touch local files — see the
+                                                     "Uninstalling" steps in AGENT-INSTALL.md
   patchstack-connect mark-build [options]            Stamp built HTML with a production flag +
                                                      build fingerprint, and ensure the widget
                                                      tag in built pages (run as a postbuild step)
@@ -80,7 +92,7 @@ Usage:
                                                      guide even when setup is complete
   patchstack-connect help                            Print this message
 
-Options (for scan, setup, and status):
+Options (for scan, setup, status, and uninstall):
   --site-uuid <uuid>      Override the configured site UUID
   --endpoint <url>        Override the API endpoint
   --dry-run               (scan only) Show the payload without posting
@@ -594,6 +606,46 @@ async function runStatus(args: ParsedArgs): Promise<number> {
   return 0;
 }
 
+async function runUninstall(args: ParsedArgs): Promise<number> {
+  const config = await resolveConfig({
+    cwd: process.cwd(),
+    cliSiteUuid: getStringFlag(args.flags, 'site-uuid'),
+    cliEndpoint: getStringFlag(args.flags, 'endpoint'),
+  });
+
+  if (config.siteUuid === null) {
+    console.log('No site UUID configured — there is no site record to signal about.');
+    console.log('Continue with the local removal steps in AGENT-INSTALL.md ("Uninstalling").');
+    return 0;
+  }
+
+  console.log(`Signalling Patchstack that @patchstack/connect is being removed (site ${config.siteUuid})…`);
+  const outcome = await postPackageRemoved(config);
+
+  switch (outcome.result) {
+    case 'deleted':
+      console.log('Site record removed from Patchstack (the site was unclaimed).');
+      break;
+    case 'flagged':
+      console.log('This site is claimed by a Patchstack account, so its record was kept and flagged.');
+      console.log('Its owner can remove it at https://app.patchstack.com to free the site slot.');
+      break;
+    case 'gone':
+      console.log('The site record no longer exists on Patchstack — nothing to signal.');
+      break;
+    case 'failed':
+      console.warn(`Could not signal Patchstack${outcome.message !== null ? ` (${outcome.message})` : ''}.`);
+      console.warn('The site record may remain — it can always be removed from the dashboard at https://app.patchstack.com.');
+      break;
+  }
+
+  console.log('');
+  console.log('This command only signals Patchstack. The local integration files must still be');
+  console.log('removed — follow the "Uninstalling" steps in AGENT-INSTALL.md.');
+  // Never fail the uninstall flow over the signal: local removal must proceed.
+  return 0;
+}
+
 /** One-line, human-readable summary of a detected stack for CLI output. */
 function describeStack(stack: StackDescriptor): string | null {
   const parts = [stack.builder, stack.framework, stack.ui, stack.runtime].filter(
@@ -705,6 +757,8 @@ async function main(): Promise<number> {
       return runScan(args);
     case 'status':
       return runStatus(args);
+    case 'uninstall':
+      return runUninstall(args);
     case 'mark-build':
       return runMarkBuild(args);
     case 'protect':
diff --git a/src/client.ts b/src/client.ts
index a97262f..40f4ad7 100644
--- a/src/client.ts
+++ b/src/client.ts
@@ -44,6 +44,68 @@ export function buildSettingsUrl(endpoint: string, siteUuid: string): string {
   return `${origin}/monitor/widget/settings/${encodeURIComponent(siteUuid)}`;
 }
 
+/** Build the package-removed signal URL corresponding to a manifest endpoint override. */
+export function buildPackageRemovedUrl(manifestEndpoint: string, siteUuid: string): string {
+  const url = new URL(manifestEndpoint);
+  const path = url.pathname.replace(/\/$/, '');
+  url.pathname = path.endsWith('/manifest')
+    ? `${path.slice(0, -'/manifest'.length)}/package-removed/${encodeURIComponent(siteUuid)}`
+    : `/monitor/pulse/package-removed/${encodeURIComponent(siteUuid)}`;
+  url.search = '';
+  url.hash = '';
+  return url.toString();
+}
+
+/**
+ * Outcome of the package-removed signal. 'deleted' — the site was unclaimed
+ * and its record was removed; 'flagged' — the site is claimed, so it was only
+ * marked for its owner to confirm removal in the dashboard; 'gone' — the
+ * record no longer existed; 'failed' — Patchstack could not be reached or
+ * returned an unexpected response.
+ */
+export interface PackageRemovedOutcome {
+  result: 'deleted' | 'flagged' | 'gone' | 'failed';
+  message: string | null;
+}
+
+/**
+ * Tell Patchstack the @patchstack/connect package is being uninstalled from
+ * this project. The site UUID is the only credential, so the server deletes
+ * only unclaimed (anonymous) sites; claimed sites are merely flagged for
+ * their owner. Never throws — an unreachable server must not block the local
+ * uninstall.
+ */
+export async function postPackageRemoved(config: Config): Promise<PackageRemovedOutcome> {
+  if (config.siteUuid === null) {
+    return { result: 'failed', message: 'No site UUID configured.' };
+  }
+
+  const url = buildPackageRemovedUrl(config.endpoint, config.siteUuid);
+  try {
+    const response = await fetch(url, {
+      method: 'POST',
+      headers: {
+        Accept: 'application/json',
+        'User-Agent': '@patchstack/connect',
+      },
+      signal: AbortSignal.timeout(config.timeoutMs),
+    });
+    if (response.status === 404) {
+      return { result: 'gone', message: null };
+    }
+    if (!response.ok) {
+      return { result: 'failed', message: `Patchstack returned ${response.status}.` };
+    }
+    const body = (await response.json()) as { status?: string; message?: string };
+    if (body.status === 'deleted' || body.status === 'flagged') {
+      return { result: body.status, message: body.message ?? null };
+    }
+    return { result: 'failed', message: 'Patchstack returned an unexpected response.' };
+  } catch {
+    return { result: 'failed', message: `Could not reach Patchstack at ${url}.` };
+  }
+}
+
 /**
  * Whether the site record still exists on Patchstack's side. Removing a site
  * (dashboard delete or the widget's uninstall flow) only deletes the remote
diff --git a/tests/client.test.ts b/tests/client.test.ts
index a60caf6..0457b95 100644
--- a/tests/client.test.ts
+++ b/tests/client.test.ts
@@ -2,10 +2,12 @@ import { afterEach, describe, expect, it, vi } from 'vitest';
 import {
   buildClaimUrl,
   buildEndpointUrl,
+  buildPackageRemovedUrl,
   buildRulesUrl,
   buildSettingsUrl,
   fetchSiteStatus,
   postManifest,
+  postPackageRemoved,
 } from '../src/client.js';
 import { PatchstackError } from '../src/types.js';
 
@@ -167,6 +169,106 @@ describe('fetchSiteStatus', () => {
   });
 });
 
+describe('buildPackageRemovedUrl', () => {
+  it('maps the production manifest endpoint to the per-site package-removed endpoint', () => {
+    expect(
+      buildPackageRemovedUrl(
+        'https://api.patchstack.com/monitor/pulse/manifest',
+        '550e8400-e29b-41d4-a716-446655440000',
+      ),
+    ).toBe(
+      'https://api.patchstack.com/monitor/pulse/package-removed/550e8400-e29b-41d4-a716-446655440000',
+    );
+  });
+
+  it('falls back to the canonical path for a non-manifest endpoint override', () => {
+    expect(buildPackageRemovedUrl('http://localhost:8000/custom/endpoint?x=1#test', 'site/id')).toBe(
+      'http://localhost:8000/monitor/pulse/package-removed/site%2Fid',
+    );
+  });
+});
+
+describe('postPackageRemoved', () => {
+  const config = {
+    siteUuid: 'uuid',
+    endpoint: 'https://example.com/monitor/pulse/manifest',
+    timeoutMs: 30_000,
+    widget: true,
+    environment: 'production',
+  } as const;
+
+  afterEach(() => {
+    vi.unstubAllGlobals();
+  });
+
+  it('returns deleted with the server message for an unclaimed site', async () => {
+    const fetchMock = vi.fn().mockResolvedValue(
+      new Response(
+        JSON.stringify({ status: 'deleted', message: 'The site record was removed from Patchstack.' }),
+        { status: 200 },
+      ),
+    );
+    vi.stubGlobal('fetch', fetchMock);
+
+    await expect(postPackageRemoved(config)).resolves.toEqual({
+      result: 'deleted',
+      message: 'The site record was removed from Patchstack.',
+    });
+    const [calledUrl, init] = fetchMock.mock.calls[0] as [string, RequestInit];
+    expect(calledUrl).toBe('https://example.com/monitor/pulse/package-removed/uuid');
+    expect(init.method).toBe('POST');
+  });
+
+  it('returns flagged for a claimed site', async () => {
+    vi.stubGlobal(
+      'fetch',
+      vi.fn().mockResolvedValue(
+        new Response(JSON.stringify({ status: 'flagged', message: 'Claimed.' }), { status: 200 }),
+      ),
+    );
+
+    await expect(postPackageRemoved(config)).resolves.toEqual({
+      result: 'flagged',
+      message: 'Claimed.',
+    });
+  });
+
+  it('returns gone on 404', async () => {
+    vi.stubGlobal(
+      'fetch',
+      vi.fn().mockResolvedValue(
+        new Response(JSON.stringify({ error: 'Site not found.' }), { status: 404 }),
+      ),
+    );
+
+    await expect(postPackageRemoved(config)).resolves.toEqual({ result: 'gone', message: null });
+  });
+
+  it('returns failed on server errors, bad bodies, and network failures — never throws', async () => {
+    vi.stubGlobal('fetch', vi.fn().mockResolvedValue(new Response('', { status: 500 })));
+    await expect(postPackageRemoved(config)).resolves.toMatchObject({ result: 'failed' });
+
+    vi.stubGlobal(
+      'fetch',
+      vi.fn().mockResolvedValue(new Response(JSON.stringify({ ok: true }), { status: 200 })),
+    );
+    await expect(postPackageRemoved(config)).resolves.toMatchObject({ result: 'failed' });
+
+    vi.stubGlobal('fetch', vi.fn().mockRejectedValue(new Error('boom')));
+    await expect(postPackageRemoved(config)).resolves.toMatchObject({ result: 'failed' });
+  });
+
+  it('returns failed without a request when no siteUuid is configured', async () => {
+    const fetchMock = vi.fn();
+    vi.stubGlobal('fetch', fetchMock);
+
+    await expect(postPackageRemoved({ ...config, siteUuid: null })).resolves.toMatchObject({
+      result: 'failed',
+    });
+    expect(fetchMock).not.toHaveBeenCalled();
+  });
+});
+
 describe('postManifest', () => {
   afterEach(() => {
     vi.unstubAllGlobals();