fix(helpers): resolve the ruflo CLI from the helper root, not the project

A home-level helper or a user-level plugin hook serves every opened project.
hook-handler.cjs and statusline.cjs executed a CLI found under the project
(<cwd>/node_modules/{@claude-flow/cli,ruflo}, <cwd>/v3/...), and every npx
fallback ran with the project as cwd, where npx prefers the project's own
install. The plugin shims also resolved `ruflo` through relative PATH
entries, which resolve against the cwd.

- hook-handler.cjs / statusline.cjs (package and repo copies): candidates
  are built from the helper's install root; for a project-local helper that
  is the project, so its behaviour is unchanged.
- npx fallbacks pass `--prefix <helper root>` (generated hook-handler and
  ruflo-hook.cjs too) or, in the plugin shims, `--prefix <plugin data dir or
  home>`. The spawned CLI still runs with the project as its cwd.
- ruflo-hook.cjs (all four copies): relative/empty PATH entries are skipped.

Test: helper-cli-resolution-trust.test.ts (11 cases, 10 fail on main);
hook-handler-artifact-parity follows the npx args into cliSpawnArgs().

The signed helpers changed, so the helpers manifest needs re-signing.

.claude-plugin/scripts/ruflo-hook.cjs

@@ -79,6 +79,15 @@ function envValue(env, name) {
   return key ? env[key] : undefined;
 }
 
+/**
+ * Where the npx fallback resolves ruflo from: the plugin's data dir or the
+ * user's home, never the cwd (the opened project). `--prefix` only changes
+ * package resolution; the CLI still runs with the project as its cwd.
+ */
+function npxPrefix(env = process.env) {
+  return envValue(env, 'CLAUDE_PLUGIN_DATA') || envValue(env, 'PLUGIN_DATA') || require('os').homedir();
+}
+
 /**
  * Locate a command on PATH using fs only.
  *
@@ -98,6 +107,9 @@ function resolveCommandPath(command, env = process.env, platform = process.platf
     ? (envValue(env, 'PATHEXT') || '.COM;.EXE;.BAT;.CMD').split(';')
     : [''];
   for (const dir of dirs) {
+    // A relative or empty PATH entry resolves against the cwd, i.e. the
+    // opened project; never resolve the CLI from there.
+    if (!hasSeparator && !(platform === 'win32' ? path.win32 : path.posix).isAbsolute(dir)) continue;
     for (const ext of extensions) {
       const base = path.resolve(dir || '.', command);
       const candidates = ext
@@ -289,7 +301,7 @@ function main() {
   // a spurious failure even though the shim itself works correctly.
   // The bash version doesn't hit this because it backgrounded the work.
   if (process.env.RUFLO_HOOK_SKIP_NPX !== '1') {
-    invokeHook('npx', ['--prefer-offline', '--yes', 'ruflo@latest'], hookArgs, stdinData);
+    invokeHook('npx', ['--prefer-offline', '--yes', '--prefix', npxPrefix(), 'ruflo@latest'], hookArgs, stdinData);
   }
 
   done();
@@ -301,4 +313,4 @@ function main() {
 // invokes this file directly, so main() runs unconditionally otherwise.
 if (!globalThis.__RUFLO_HOOK_IMPORT_ONLY__) main();
 
-module.exports = { invokeHook, resolveCommandPath, resolveInvocation, resolveNpmShim, escapeCmdArg };
+module.exports = { invokeHook, npxPrefix, resolveCommandPath, resolveInvocation, resolveNpmShim, escapeCmdArg };

.claude/helpers/hook-handler.cjs

@@ -18,6 +18,10 @@ const fs = require('fs');
 const os = require('os');
 
 const helpersDir = __dirname;
+// The helper's own install root: the project for a project-local helper,
+// $HOME for a home-level one. CLI resolution starts here, never at the opened
+// project, so a home-level helper does not run code the project supplies.
+const helperRoot = path.resolve(helpersDir, '..', '..');
 
 // Resolve an installed @claude-flow/cli (or ruflo) bin — mirrors
 // statusline-generator.ts's resolveCliBin() candidate list. Used only to
@@ -38,12 +42,11 @@ const helpersDir = __dirname;
 function resolveCliBinForHook() {
   try {
     const home = os.homedir();
-    const cwd = process.cwd();
     const candidates = [
       path.join(home, '.claude', 'plugins', 'marketplaces', 'ruflo', 'bin', 'cli.js'),
-      path.join(cwd, 'node_modules', '@claude-flow', 'cli', 'bin', 'cli.js'),
-      path.join(cwd, 'node_modules', 'ruflo', 'bin', 'cli.js'),
-      path.join(cwd, 'v3', '@claude-flow', 'cli', 'bin', 'cli.js'),
+      path.join(helperRoot, 'node_modules', '@claude-flow', 'cli', 'bin', 'cli.js'),
+      path.join(helperRoot, 'node_modules', 'ruflo', 'bin', 'cli.js'),
+      path.join(helperRoot, 'v3', '@claude-flow', 'cli', 'bin', 'cli.js'),
       // helpersDir is .claude/helpers/ inside the package itself when this
       // file is running from a real @claude-flow/cli install (not a project
       // that merely copied the helper) — its bin/ is two levels up.
@@ -77,14 +80,19 @@ function resolveCliBinForHook() {
 // render path, where local-first exists purely for per-render latency.
 // `--prefer-offline` avoids a registry round trip for the tarball when
 // already cached while still resolving the current `@latest` version.
+//
+// `--prefix helperRoot` makes npx resolve @claude-flow/cli from the helper's
+// install root instead of the cwd (the opened project); the spawned CLI still
+// runs with the project as its cwd.
+function cliSpawnArgs(cliBin, args, platform = process.platform) {
+  if (cliBin) return [process.execPath, [cliBin, ...args]];
+  return [platform === 'win32' ? 'npx.cmd' : 'npx', ['--prefer-offline', '--prefix', helperRoot, '@claude-flow/cli', ...args]];
+}
+
 function spawnDetachedHookRefresh(subcommand) {
   try {
     const { spawn } = require('child_process');
-    const cliBin = resolveCliBinForHook();
-    const cmd = process.platform === 'win32' ? 'npx.cmd' : 'npx';
-    const spawnArgs = cliBin
-      ? [process.execPath, [cliBin, 'hooks', subcommand, '--quiet']]
-      : [cmd, ['--prefer-offline', '@claude-flow/cli', 'hooks', subcommand, '--quiet']];
+    const spawnArgs = cliSpawnArgs(resolveCliBinForHook(), ['hooks', subcommand, '--quiet']);
     const child = spawn(spawnArgs[0], spawnArgs[1], {
       detached: true,
       stdio: 'ignore',
@@ -151,10 +159,7 @@ function firstRunAutoEnableIfEligible() {
     const cliBin = resolveCliBinForHook();
     const runDetached = (args) => {
       try {
-        const spawnArgs = cliBin
-          ? [process.execPath, [cliBin, ...args]]
-          : [process.platform === 'win32' ? 'npx.cmd' : 'npx',
-             ['--prefer-offline', '@claude-flow/cli', ...args]];
+        const spawnArgs = cliSpawnArgs(cliBin, args);
         const child = spawn(spawnArgs[0], spawnArgs[1], {
           detached: true, stdio: 'ignore', env: process.env, windowsHide: true,
         });
@@ -772,4 +777,4 @@ if (require.main === module) {
 // Which sibling helpers loaded (all CommonJS, shipped as .cjs — #3555).
 const loadedHelpers = { router: !!router, session: !!session, memory: !!memory, intelligence: !!intelligence };
 
-module.exports = { runWithTimeout, INTELLIGENCE_TIMEOUT_MS, loadedHelpers, ownedByMod, MOD_OWNABLE_EVENTS };
+module.exports = { runWithTimeout, INTELLIGENCE_TIMEOUT_MS, loadedHelpers, ownedByMod, MOD_OWNABLE_EVENTS, resolveCliBinForHook, cliSpawnArgs, helperRoot };

plugin/scripts/ruflo-hook.cjs

@@ -79,6 +79,15 @@ function envValue(env, name) {
   return key ? env[key] : undefined;
 }
 
+/**
+ * Where the npx fallback resolves ruflo from: the plugin's data dir or the
+ * user's home, never the cwd (the opened project). `--prefix` only changes
+ * package resolution; the CLI still runs with the project as its cwd.
+ */
+function npxPrefix(env = process.env) {
+  return envValue(env, 'CLAUDE_PLUGIN_DATA') || envValue(env, 'PLUGIN_DATA') || require('os').homedir();
+}
+
 /**
  * Locate a command on PATH using fs only.
  *
@@ -98,6 +107,9 @@ function resolveCommandPath(command, env = process.env, platform = process.platf
     ? (envValue(env, 'PATHEXT') || '.COM;.EXE;.BAT;.CMD').split(';')
     : [''];
   for (const dir of dirs) {
+    // A relative or empty PATH entry resolves against the cwd, i.e. the
+    // opened project; never resolve the CLI from there.
+    if (!hasSeparator && !(platform === 'win32' ? path.win32 : path.posix).isAbsolute(dir)) continue;
     for (const ext of extensions) {
       const base = path.resolve(dir || '.', command);
       const candidates = ext
@@ -289,7 +301,7 @@ function main() {
   // a spurious failure even though the shim itself works correctly.
   // The bash version doesn't hit this because it backgrounded the work.
   if (process.env.RUFLO_HOOK_SKIP_NPX !== '1') {
-    invokeHook('npx', ['--prefer-offline', '--yes', 'ruflo@latest'], hookArgs, stdinData);
+    invokeHook('npx', ['--prefer-offline', '--yes', '--prefix', npxPrefix(), 'ruflo@latest'], hookArgs, stdinData);
   }
 
   done();
@@ -301,4 +313,4 @@ function main() {
 // invokes this file directly, so main() runs unconditionally otherwise.
 if (!globalThis.__RUFLO_HOOK_IMPORT_ONLY__) main();
 
-module.exports = { invokeHook, resolveCommandPath, resolveInvocation, resolveNpmShim, escapeCmdArg };
+module.exports = { invokeHook, npxPrefix, resolveCommandPath, resolveInvocation, resolveNpmShim, escapeCmdArg };

plugins/ruflo-core/scripts/ruflo-hook.cjs

@@ -57,6 +57,15 @@ function envValue(env, name) {
   return key ? env[key] : undefined;
 }
 
+/**
+ * Where the npx fallback resolves ruflo from: the plugin's data dir or the
+ * user's home, never the cwd (the opened project). `--prefix` only changes
+ * package resolution; the CLI still runs with the project as its cwd.
+ */
+function npxPrefix(env = process.env) {
+  return envValue(env, 'CLAUDE_PLUGIN_DATA') || envValue(env, 'PLUGIN_DATA') || require('os').homedir();
+}
+
 /**
  * Locate a command on PATH using fs only.
  *
@@ -76,6 +85,9 @@ function resolveCommandPath(command, env = process.env, platform = process.platf
     ? (envValue(env, 'PATHEXT') || '.COM;.EXE;.BAT;.CMD').split(';')
     : [''];
   for (const dir of dirs) {
+    // A relative or empty PATH entry resolves against the cwd, i.e. the
+    // opened project; never resolve the CLI from there.
+    if (!hasSeparator && !(platform === 'win32' ? path.win32 : path.posix).isAbsolute(dir)) continue;
     for (const ext of extensions) {
       const base = path.resolve(dir || '.', command);
       const candidates = ext
@@ -271,7 +283,7 @@ function invokeCli(hookSubcommand, hookArgs, stdinData) {
   // itself works correctly. The bash version doesn't hit this because it
   // backgrounded the work.
   if (process.env.RUFLO_HOOK_SKIP_NPX !== '1') {
-    invokeHook('npx', ['--prefer-offline', '--yes', 'ruflo@latest'], hookSubcommand, hookArgs, stdinData);
+    invokeHook('npx', ['--prefer-offline', '--yes', '--prefix', npxPrefix(), 'ruflo@latest'], hookSubcommand, hookArgs, stdinData);
   }
 }
 
@@ -465,4 +477,4 @@ if (process.env.RUFLO_HOOK_UNIT_TEST !== '1') {
   main();
 }
 
-module.exports = { escapeCmdArg, invokeHook, resolveCommandPath, resolveInvocation, resolveNpmShim };
+module.exports = { escapeCmdArg, invokeHook, npxPrefix, resolveCommandPath, resolveInvocation, resolveNpmShim };

v3/@claude-flow/cli/.claude/helpers/hook-handler.cjs

@@ -18,6 +18,10 @@ const fs = require('fs');
 const os = require('os');
 
 const helpersDir = __dirname;
+// The helper's own install root: the project for a project-local helper,
+// $HOME for a home-level one. CLI resolution starts here, never at the opened
+// project, so a home-level helper does not run code the project supplies.
+const helperRoot = path.resolve(helpersDir, '..', '..');
 
 // Resolve an installed @claude-flow/cli (or ruflo) bin — mirrors
 // statusline-generator.ts's resolveCliBin() candidate list. Used only to
@@ -38,12 +42,11 @@ const helpersDir = __dirname;
 function resolveCliBinForHook() {
   try {
     const home = os.homedir();
-    const cwd = process.cwd();
     const candidates = [
       path.join(home, '.claude', 'plugins', 'marketplaces', 'ruflo', 'bin', 'cli.js'),
-      path.join(cwd, 'node_modules', '@claude-flow', 'cli', 'bin', 'cli.js'),
-      path.join(cwd, 'node_modules', 'ruflo', 'bin', 'cli.js'),
-      path.join(cwd, 'v3', '@claude-flow', 'cli', 'bin', 'cli.js'),
+      path.join(helperRoot, 'node_modules', '@claude-flow', 'cli', 'bin', 'cli.js'),
+      path.join(helperRoot, 'node_modules', 'ruflo', 'bin', 'cli.js'),
+      path.join(helperRoot, 'v3', '@claude-flow', 'cli', 'bin', 'cli.js'),
       // helpersDir is .claude/helpers/ inside the package itself when this
       // file is running from a real @claude-flow/cli install (not a project
       // that merely copied the helper) — its bin/ is two levels up.
@@ -77,14 +80,19 @@ function resolveCliBinForHook() {
 // render path, where local-first exists purely for per-render latency.
 // `--prefer-offline` avoids a registry round trip for the tarball when
 // already cached while still resolving the current `@latest` version.
+//
+// `--prefix helperRoot` makes npx resolve @claude-flow/cli from the helper's
+// install root instead of the cwd (the opened project); the spawned CLI still
+// runs with the project as its cwd.
+function cliSpawnArgs(cliBin, args, platform = process.platform) {
+  if (cliBin) return [process.execPath, [cliBin, ...args]];
+  return [platform === 'win32' ? 'npx.cmd' : 'npx', ['--prefer-offline', '--prefix', helperRoot, '@claude-flow/cli', ...args]];
+}
+
 function spawnDetachedHookRefresh(subcommand) {
   try {
     const { spawn } = require('child_process');
-    const cliBin = resolveCliBinForHook();
-    const cmd = process.platform === 'win32' ? 'npx.cmd' : 'npx';
-    const spawnArgs = cliBin
-      ? [process.execPath, [cliBin, 'hooks', subcommand, '--quiet']]
-      : [cmd, ['--prefer-offline', '@claude-flow/cli', 'hooks', subcommand, '--quiet']];
+    const spawnArgs = cliSpawnArgs(resolveCliBinForHook(), ['hooks', subcommand, '--quiet']);
     const child = spawn(spawnArgs[0], spawnArgs[1], {
       detached: true,
       stdio: 'ignore',
@@ -151,10 +159,7 @@ function firstRunAutoEnableIfEligible() {
     const cliBin = resolveCliBinForHook();
     const runDetached = (args) => {
       try {
-        const spawnArgs = cliBin
-          ? [process.execPath, [cliBin, ...args]]
-          : [process.platform === 'win32' ? 'npx.cmd' : 'npx',
-             ['--prefer-offline', '@claude-flow/cli', ...args]];
+        const spawnArgs = cliSpawnArgs(cliBin, args);
         const child = spawn(spawnArgs[0], spawnArgs[1], {
           detached: true, stdio: 'ignore', env: process.env, windowsHide: true,
         });
@@ -772,4 +777,4 @@ if (require.main === module) {
 // Which sibling helpers loaded (all CommonJS, shipped as .cjs — #3555).
 const loadedHelpers = { router: !!router, session: !!session, memory: !!memory, intelligence: !!intelligence };
 
-module.exports = { runWithTimeout, INTELLIGENCE_TIMEOUT_MS, loadedHelpers, ownedByMod, MOD_OWNABLE_EVENTS };
+module.exports = { runWithTimeout, INTELLIGENCE_TIMEOUT_MS, loadedHelpers, ownedByMod, MOD_OWNABLE_EVENTS, resolveCliBinForHook, cliSpawnArgs, helperRoot };

v3/@claude-flow/cli/.claude/helpers/statusline.cjs

@@ -43,6 +43,10 @@ const CONFIG = {
 };
 
 const CWD = process.env.CLAUDE_PROJECT_DIR || process.cwd();
+// The helper's own install root: the project for a project-local helper,
+// $HOME for a home-level one. The CLI is resolved from here, never from CWD,
+// so a home-level statusline does not run code the opened project supplies.
+const HELPER_ROOT = path.resolve(__dirname, '..', '..');
 // Replaced by statusline-generator with the package root of the CLI that
 // installed this helper. This survives custom npm prefixes and bundled Node
 // runtimes whose process.execPath belongs to a different tree (#2811).
@@ -111,9 +115,9 @@ function resolveCliBinCandidates() {
     const home = os.homedir();
     candidates.push(
       path.join(home, '.claude', 'plugins', 'marketplaces', 'ruflo', 'bin', 'cli.js'),
-      path.join(CWD, 'node_modules', '@claude-flow', 'cli', 'bin', 'cli.js'),
-      path.join(CWD, 'node_modules', 'ruflo', 'bin', 'cli.js'),
-      path.join(CWD, 'v3', '@claude-flow', 'cli', 'bin', 'cli.js'),
+      path.join(HELPER_ROOT, 'node_modules', '@claude-flow', 'cli', 'bin', 'cli.js'),
+      path.join(HELPER_ROOT, 'node_modules', 'ruflo', 'bin', 'cli.js'),
+      path.join(HELPER_ROOT, 'v3', '@claude-flow', 'cli', 'bin', 'cli.js'),
     );
     try {
       const binDir = path.dirname(process.execPath);
@@ -239,7 +243,8 @@ function getStatuslineData() {
   // delegation, so it could never get seeded on Windows either).
   const cmds = resolveCliBinCandidates()
     .map((bin) => '"' + process.execPath + '" "' + bin + '" hooks statusline --json')
-    .concat(['npx --prefer-offline @claude-flow/cli hooks statusline --json']);
+    // --prefix: npx resolves the package from HELPER_ROOT, not the project.
+    .concat(['npx --prefer-offline --prefix "' + HELPER_ROOT + '" @claude-flow/cli hooks statusline --json']);
   for (const cmd of cmds) {
     try {
       const raw = execSync(

v3/@claude-flow/cli/__tests__/helper-cli-resolution-trust.test.ts

@@ -0,0 +1,162 @@
+/**
+ * Hook helpers and plugin hook shims launch the ruflo CLI. A home-level
+ * helper or a user-level plugin serves every opened project, so the CLI must
+ * be resolved from the helper's own install root (or the plugin data / home
+ * dir), never from the project: not from <project>/node_modules, not from a
+ * relative PATH entry, and not through npx's project-local lookup.
+ */
+import { afterEach, describe, expect, it } from 'vitest';
+import { spawnSync } from 'node:child_process';
+import { chmodSync, copyFileSync, existsSync, mkdirSync, mkdtempSync, realpathSync, rmSync, writeFileSync } from 'node:fs';
+import { createRequire } from 'node:module';
+import { tmpdir } from 'node:os';
+import { dirname, join, resolve } from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+import { generateHookHandler, generateRufloHookCjs } from '../src/init/helpers-generator.js';
+
+const here = dirname(fileURLToPath(import.meta.url));
+const REPO = resolve(here, '../../../..');
+const require_ = createRequire(import.meta.url);
+const tempRoots: string[] = [];
+
+afterEach(() => {
+  for (const root of tempRoots.splice(0)) rmSync(root, { recursive: true, force: true });
+});
+
+/** A built-looking CLI install whose bin leaves a marker when it runs. */
+function plantCli(pkgDir: string, marker: string) {
+  mkdirSync(join(pkgDir, 'bin'), { recursive: true });
+  mkdirSync(join(pkgDir, 'dist', 'src'), { recursive: true });
+  writeFileSync(join(pkgDir, 'bin', 'cli.js'), `require('fs').writeFileSync(${JSON.stringify(marker)}, '1');\n`);
+  writeFileSync(join(pkgDir, 'dist', 'src', 'index.js'), '');
+}
+
+function fixture() {
+  const root = realpathSync(mkdtempSync(join(tmpdir(), 'ruflo-cli-trust-')));
+  tempRoots.push(root);
+  const home = join(root, 'home');
+  const project = join(root, 'project');
+  const marker = join(root, 'project-cli-ran');
+  mkdirSync(join(home, '.claude', 'helpers'), { recursive: true });
+  plantCli(join(project, 'node_modules', '@claude-flow', 'cli'), marker);
+  return { root, home, project, marker };
+}
+
+function nodeEval(code: string, cwd: string, env: NodeJS.ProcessEnv) {
+  const result = spawnSync(process.execPath, ['-e', code], { cwd, env: { ...process.env, ...env }, encoding: 'utf8', timeout: 15_000 });
+  expect(result.error).toBeUndefined();
+  return result;
+}
+
+describe('hook-handler.cjs resolves the CLI from its install root', () => {
+  for (const [name, source] of [
+    ['package', resolve(here, '../.claude/helpers/hook-handler.cjs')],
+    ['repository', resolve(REPO, '.claude/helpers/hook-handler.cjs')],
+  ] as const) {
+    it(`${name}: a home-level helper ignores the project's CLI and pins npx --prefix`, () => {
+      const { home, project } = fixture();
+      const hook = join(home, '.claude', 'helpers', 'hook-handler.cjs');
+      copyFileSync(source, hook);
+      const out = nodeEval(
+        `const h = require(${JSON.stringify(hook)});` +
+        `console.log(JSON.stringify({ bin: h.resolveCliBinForHook(), posix: h.cliSpawnArgs(null, ['hooks', 'x'], 'linux'), win: h.cliSpawnArgs(null, ['hooks', 'x'], 'win32') }));`,
+        project, { HOME: home, USERPROFILE: home, CLAUDE_PROJECT_DIR: project },
+      );
+      const r = JSON.parse(out.stdout.trim().split('\n').pop() as string);
+      expect(r.bin).toBeNull();
+      expect(r.posix).toEqual(['npx', ['--prefer-offline', '--prefix', home, '@claude-flow/cli', 'hooks', 'x']]);
+      expect(r.win).toEqual(['npx.cmd', ['--prefer-offline', '--prefix', home, '@claude-flow/cli', 'hooks', 'x']]);
+    });
+
+    it(`${name}: a project-local helper still uses the project's CLI`, () => {
+      const { home, project } = fixture();
+      const hook = join(project, '.claude', 'helpers', 'hook-handler.cjs');
+      mkdirSync(dirname(hook), { recursive: true });
+      copyFileSync(source, hook);
+      const out = nodeEval(`console.log(require(${JSON.stringify(hook)}).resolveCliBinForHook())`, project, { HOME: home, USERPROFILE: home });
+      expect(out.stdout.trim().split('\n').pop()).toBe(join(project, 'node_modules', '@claude-flow', 'cli', 'bin', 'cli.js'));
+    });
+  }
+
+  it('the generated hook-handler pins its npx refresh to the helper root', () => {
+    expect(generateHookHandler()).toContain("'--prefer-offline', '--prefix', path.resolve(helpersDir, '..', '..'), '@claude-flow/cli'");
+  });
+});
+
+describe('statusline.cjs resolves the CLI from its install root', () => {
+  const source = resolve(here, '../.claude/helpers/statusline.cjs');
+  // An empty PATH keeps the npx fallback from running; the bin candidates are
+  // launched through process.execPath, so they still run if selected.
+  const render = (helper: string, home: string, project: string, emptyBin: string) =>
+    spawnSync(process.execPath, [helper], {
+      cwd: project,
+      env: { HOME: home, USERPROFILE: home, CLAUDE_PROJECT_DIR: project, PATH: emptyBin },
+      input: '{}',
+      encoding: 'utf8',
+      timeout: 30_000,
+    });
+
+  it("a home-level statusline never runs the project's CLI", () => {
+    const { root, home, project, marker } = fixture();
+    const emptyBin = join(root, 'empty-bin');
+    mkdirSync(emptyBin);
+    const helper = join(home, '.claude', 'helpers', 'statusline.cjs');
+    copyFileSync(source, helper);
+    render(helper, home, project, emptyBin);
+    expect(existsSync(marker)).toBe(false);
+  });
+
+  it("a project-local statusline still uses the project's CLI (control)", () => {
+    const { root, home, project, marker } = fixture();
+    const emptyBin = join(root, 'empty-bin');
+    mkdirSync(emptyBin);
+    const helper = join(project, '.claude', 'helpers', 'statusline.cjs');
+    mkdirSync(dirname(helper), { recursive: true });
+    copyFileSync(source, helper);
+    render(helper, home, project, emptyBin);
+    expect(existsSync(marker)).toBe(true);
+  });
+});
+
+type Shim = {
+  npxPrefix?: (env?: NodeJS.ProcessEnv) => string;
+  resolveCommandPath: (cmd: string, env?: NodeJS.ProcessEnv, platform?: string) => string | null;
+};
+
+describe('ruflo-hook.cjs plugin shims', () => {
+  const shims = ['plugins/ruflo-core/scripts/ruflo-hook.cjs', 'plugin/scripts/ruflo-hook.cjs', '.claude-plugin/scripts/ruflo-hook.cjs'];
+
+  for (const rel of shims) {
+    it(`${rel}: ignores relative PATH entries and pins the npx prefix`, () => {
+      // The shims run main() on load unless told they are imported for a test
+      // (ruflo-core reads RUFLO_HOOK_UNIT_TEST, the others a global flag).
+      const unitTest = process.env.RUFLO_HOOK_UNIT_TEST;
+      process.env.RUFLO_HOOK_UNIT_TEST = '1';
+      (globalThis as Record<string, unknown>).__RUFLO_HOOK_IMPORT_ONLY__ = true;
+      const shim = require_(resolve(REPO, rel)) as Shim;
+      delete (globalThis as Record<string, unknown>).__RUFLO_HOOK_IMPORT_ONLY__;
+      if (unitTest === undefined) delete process.env.RUFLO_HOOK_UNIT_TEST;
+      else process.env.RUFLO_HOOK_UNIT_TEST = unitTest;
+      const { root, home } = fixture();
+      const absBin = join(root, 'abs-bin');
+      mkdirSync(absBin);
+      const rufloAbs = join(absBin, 'ruflo');
+      writeFileSync(rufloAbs, '#!/bin/sh\n');
+      chmodSync(rufloAbs, 0o755);
+
+      // A relative entry that would resolve against the cwd is skipped
+      // (posix and win32 forms); an absolute entry still resolves.
+      expect(shim.resolveCommandPath('ruflo', { PATH: `.${':'}relative-dir` }, 'linux')).toBeNull();
+      expect(shim.resolveCommandPath('ruflo', { PATH: `.;relative-dir`, PATHEXT: '.CMD' }, 'win32')).toBeNull();
+      expect(shim.resolveCommandPath('ruflo', { PATH: `.:${absBin}` }, 'linux')).toBe(rufloAbs);
+
+      expect(shim.npxPrefix?.({ CLAUDE_PLUGIN_DATA: '/plugin/data' })).toBe('/plugin/data');
+      expect(shim.npxPrefix?.({ HOME: home })).toBeTypeOf('string');
+    });
+  }
+
+  it('the generated ruflo-hook.cjs pins its npx fallback to the helper root', () => {
+    expect(generateRufloHookCjs()).toContain("'--prefer-offline', '--yes', '--prefix', path.resolve(__dirname, '..', '..'), 'ruflo@latest'");
+  });
+});

v3/@claude-flow/cli/__tests__/hook-handler-artifact-parity.test.ts

@@ -56,9 +56,14 @@ describe('hook-handler.cjs — resolveCliBinForHook validates a real dist, not j
     const idx = source.indexOf('function spawnDetachedHookRefresh');
     expect(idx).toBeGreaterThan(-1);
     const body = source.slice(idx, idx + 700);
-    expect(body).toContain('@claude-flow/cli');
-    expect(body).toContain('--prefer-offline');
+    expect(body).toContain('cliSpawnArgs(resolveCliBinForHook()');
     expect(body).not.toContain('if (!cliBin) return;');
+    // cliSpawnArgs() builds the npx fallback when no local candidate resolves.
+    const argsIdx = source.indexOf('function cliSpawnArgs');
+    expect(argsIdx).toBeGreaterThan(-1);
+    const argsBody = source.slice(argsIdx, argsIdx + 400);
+    expect(argsBody).toContain('@claude-flow/cli');
+    expect(argsBody).toContain('--prefer-offline');
   });
 });
 

v3/@claude-flow/cli/src/init/helpers-generator.ts

@@ -615,7 +615,9 @@ export function generateHookHandler(): string {
     'function spawnFunnelRefresh() {',
     '  try {',
     "    var cmd = process.platform === 'win32' ? 'npx.cmd' : 'npx';",
-    "    var args = ['--prefer-offline', '@claude-flow/cli', 'hooks', 'refresh-funnel', '--quiet'];",
+    // --prefix: resolve the package from this helper's install root, never
+    // from the cwd (the opened project); the CLI still runs in the project.
+    "    var args = ['--prefer-offline', '--prefix', path.resolve(helpersDir, '..', '..'), '@claude-flow/cli', 'hooks', 'refresh-funnel', '--quiet'];",
     '    var child = spawn(cmd, args, {',
     "      detached: true, stdio: 'ignore', env: Object.assign({}, process.env),",
     '    });',
@@ -1637,6 +1639,9 @@ function resolveCommandPath(command, env = process.env, platform = process.platf
     ? (envValue(env, 'PATHEXT') || '.COM;.EXE;.BAT;.CMD').split(';')
     : [''];
   for (const dir of dirs) {
+    // A relative or empty PATH entry resolves against the cwd, i.e. the
+    // opened project; never resolve the CLI from there.
+    if (!hasSeparator && !(platform === 'win32' ? path.win32 : path.posix).isAbsolute(dir)) continue;
     for (const ext of extensions) {
       const base = path.resolve(dir || '.', command);
       const candidates = ext
@@ -1789,7 +1794,9 @@ function main() {
   // exists but cannot be resolved to an entrypoint still runs, via layer 2.
   if (resolveCommandPath('ruflo')) { invokeHook('ruflo', [], hookArgs, stdinData); done(); }
   if (resolveCommandPath('claude-flow')) { invokeHook('claude-flow', [], hookArgs, stdinData); done(); }
-  invokeHook('npx', ['--prefer-offline', '--yes', 'ruflo@latest'], hookArgs, stdinData);
+  // --prefix: npx resolves ruflo from this helper's install root, never from
+  // the cwd (the opened project); the CLI still runs in the project.
+  invokeHook('npx', ['--prefer-offline', '--yes', '--prefix', path.resolve(__dirname, '..', '..'), 'ruflo@latest'], hookArgs, stdinData);
   done();
 }