@@ -1518,9 +1518,9 @@ run started and saves the session HeyGen returns in the project's
 with the render. It then prints the video's [`measure probe`](#measure) JSON,
 with a `reverse` field: whether you are signed in, the plan (`free`, `pro`, or
 `null` when unknown), the session, and on Free the `upgrade_url` that credits a
-purchase to this run. It never stops the run: signed out,
-offline, or on a server without the route, it skips the session and still
-probes.
+purchase to this run. It stops the run only when HeyGen blocks it for a Free
+account: it then exits non-zero with that upgrade link. Signed out, offline, or
+on a server without the route, it skips the session and still probes.
 
 ```bash
 npx hyperframes reverse start ref.mp4 --dir my-rebuild
 
@@ -31,9 +31,13 @@ vi.mock("../measure/probe.js", () => ({
 const { default: start } = await import("./start.js");
 
 const SESSION = "rvs_0f8fad5b-d9cb-469f-a165-70867728950e";
-const recorded = (plan: "free" | "pro" | "unknown" = "pro", upgradeUrl?: string): ReverseStart => ({
+const recorded = (
+  plan: "free" | "pro" | "unknown" = "pro",
+  upgradeUrl?: string,
+  gate: "record" | "block" = "record",
+): ReverseStart => ({
   recorded: true,
-  session: { sessionId: SESSION, plan, gate: "record", ...(upgradeUrl ? { upgradeUrl } : {}) },
+  session: { sessionId: SESSION, plan, gate, ...(upgradeUrl ? { upgradeUrl } : {}) },
 });
 
 let root: string;
@@ -169,6 +173,32 @@ describe("reverse start", () => {
     expect(() => readFileSync(join(dir, "hyperframes.json"))).toThrow();
   });
 
+  it("stops a Free account the server blocks, with its upgrade link as the fix, after saving the session", async () => {
+    const link = "https://hyperframes.studio/pricing?feature=reverse&rs=1";
+    server.answer = recorded("free", link, "block");
+    const dir = join(root, "rebuild");
+    await expect(run("--dir", dir)).rejects.toThrow(CliRuntimeError);
+    expect(output()).toMatchObject({ ok: false, error: expect.stringContaining(link), fix: link });
+    expect(config(dir)).toMatchObject({ reverseSessionId: SESSION });
+  });
+
+  it("builds the attributed plans link when a block names none", async () => {
+    server.answer = recorded("free", undefined, "block");
+    await expect(run()).rejects.toThrow(CliRuntimeError);
+    const link = `https://plans.test/?feature=reverse&rs=${SESSION}`;
+    expect(output()).toMatchObject({ ok: false, error: expect.stringContaining(link), fix: link });
+  });
+
+  it.each<[string, ReverseStart]>([
+    ["a Pro account under block", recorded("pro", undefined, "block")],
+    ["an unknown plan under block", recorded("unknown", undefined, "block")],
+    ["a Free account under record", recorded("free")],
+  ])("goes on for %s", async (_label, answer) => {
+    server.answer = answer;
+    await run();
+    expect(output()).toMatchObject({ ok: true, width: 1080, reverse: { recorded: true } });
+  });
+
   it("fails like measure probe when the video cannot be probed, before asking the server", async () => {
     probe.fail = true;
     await expect(run()).rejects.toThrow(CliRuntimeError);
 
@@ -2,7 +2,13 @@ import { existsSync } from "node:fs";
 import { defineCommand } from "../../utils/defineCommand.js";
 import type { Example } from "../_examples.js";
 import { jsonArg, runMeasure, videoArg } from "../../measure/command.js";
-import { reverseUpgradeUrl, startReverseSession, type ReverseStart } from "../../heygen/reverse.js";
+import { Fix } from "../../measure/media.js";
+import {
+  reverseUpgradeUrl,
+  startReverseSession,
+  type ReverseSession,
+  type ReverseStart,
+} from "../../heygen/reverse.js";
 import {
   projectConfigPath,
   readProjectConfig,
@@ -41,11 +47,20 @@ function summary(started: ReverseStart, savedTo: string | undefined) {
   };
 }
 
+function refusalWhenServerBlocksFree(session: ReverseSession): Fix | undefined {
+  if (session.gate !== "block" || session.plan !== "free") return undefined;
+  const link = reverseUpgradeUrl(session);
+  return new Fix(
+    `Reverse is part of HyperFrames Pro. Upgrade here, then run reverse start again: ${link}`,
+    link,
+  );
+}
+
 export default defineCommand({
   meta: {
     name: "start",
     description:
-      "Note a reverse run with HeyGen (signed in: saves its session in the project), then print the video's probe; never stops the run",
+      "Note a reverse run with HeyGen (signed in: saves its session in the project), then print the video's probe; stops only when HeyGen blocks a Free account",
   },
   args: {
     video: videoArg,
@@ -68,6 +83,8 @@ export default defineCommand({
       const savedTo = save
         ? recordProjectReverseSession(projectDir, started.session.sessionId, SKILL)
         : undefined;
+      const refused = started.recorded ? refusalWhenServerBlocksFree(started.session) : undefined;
+      if (refused) throw refused;
       return { reverse: summary(started, savedTo), ...probe };
     });
   },
 
@@ -26,7 +26,7 @@
       "files": 76
     },
     "reverse-any-video": {
-      "hash": "025850a14e3b6370",
+      "hash": "fe326730ec89a06b",
       "files": 5
     },
     "slideshow": {
 
@@ -9,7 +9,7 @@ description: Rebuild any video file as an editable HyperFrames project - motion
 
 The result is a HyperFrames project whose render matches the original frame for frame and stays editable. Build to the `/hyperframes` contract and work the way you normally would, with ffmpeg, python and your own eyes. Reverse videos the person has the right to use.
 
-Reverse is a HyperFrames Pro feature: go on only when signed in on a paid plan, not Free. Open with `npx hyperframes reverse start <video> --dir <project>` (a CLI without it: `auth status`, `measure probe`) and `references/start.md`. Resuming (a `REVERSE.md` or half-built project is there) is a start too: open it the same way first. A step an earlier session gave up on (a re-shoot HeyGen refused) gets one more try, then ask the person. If that session ran under a credit limit, just ask whether it still applies, naming no costs or numbers. Rebuild the video as it is; remix it only when the person asks.
+Reverse is a HyperFrames Pro feature: go on only on a paid plan, not Free. Open with `npx hyperframes reverse start <video> --dir <project>` (a CLI without it: `auth status`, `measure probe`) and `references/start.md`; if it refuses, pass on its upgrade link and stop. Resuming (a `REVERSE.md` or half-built project) opens the same way. A step an earlier session gave up on (a re-shoot HeyGen refused) gets one more try, then ask the person. If that session ran under a credit limit, just ask whether it still applies, naming no costs or numbers. Rebuild the video as it is; remix it only when the person asks.
 
 ## The original decides the frame
 
 
@@ -43,7 +43,9 @@ example:
 >
 > Reply "done" once you're on Pro and I'll start.
 
-Only on a CLI without `reverse start`, give `! npx hyperframes billing subscribe` instead.
+When `reverse start` refuses the run (it exits with an error whose `fix` is the upgrade link), give the person that
+exact link and stop; once they reply that they are on Pro, run `reverse start` again. Only on a CLI without
+`reverse start`, give `! npx hyperframes billing subscribe` instead.
 
 ## Signed in on Pro
Original file line number	Diff line number	Diff line change
`@@ -43,7 +43,9 @@ example:`
`43`	`43`	`>`
`44`	`44`	`> Reply "done" once you're on Pro and I'll start.`
`45`	`45`
`46`		-Only on a CLI without `reverse start`, give `! npx hyperframes billing subscribe` instead.
	`46`	+When `reverse start` refuses the run (it exits with an error whose `fix` is the upgrade link), give the person that
	`47`	+exact link and stop; once they reply that they are on Pro, run `reverse start` again. Only on a CLI without
	`48`	+`reverse start`, give `! npx hyperframes billing subscribe` instead.
`47`	`49`
`48`	`50`	`## Signed in on Pro`
`49`	`51`