Check if this issue is valid — if so, understand the root cause and fix it. At hooks/hooks.json, line 149:

<comment>SessionStart now depends on `CLAUDE_PLUGIN_ROOT` being valid just to start the bootstrap script, which removes prior entry-point fallback/passthrough behavior when the env var is missing or wrong.</comment>

<file context>
@@ -146,7 +146,7 @@
           {
             "type": "command",
-            "command": "node -e \"const fs=require('fs');const path=require('path');const {spawnSync}=require('child_process');const raw=fs.readFileSync(0,'utf8');const rel=path.join('scripts','hooks','run-with-flags.js');const hasRunnerRoot=candidate=>{const value=typeof candidate==='string'?candidate.trim():'';return value.length>0&&fs.existsSync(path.join(path.resolve(value),rel));};const root=(()=>{const envRoot=process.env.CLAUDE_PLUGIN_ROOT||'';if(hasRunnerRoot(envRoot))return path.resolve(envRoot.trim());const home=require('os').homedir();const claudeDir=path.join(home,'.claude');if(hasRunnerRoot(claudeDir))return claudeDir;for(const candidate of [path.join(claudeDir,'plugins','everything-claude-code'),path.join(claudeDir,'plugins','everything-claude-code@everything-claude-code'),path.join(claudeDir,'plugins','marketplace','everything-claude-code')]){if(hasRunnerRoot(candidate))return candidate;}try{const cacheBase=path.join(claudeDir,'plugins','cache','everything-claude-code');for(const org of fs.readdirSync(cacheBase,{withFileTypes:true})){if(!org.isDirectory())continue;for(const version of fs.readdirSync(path.join(cacheBase,org.name),{withFileTypes:true})){if(!version.isDirectory())continue;const candidate=path.join(cacheBase,org.name,version.name);if(hasRunnerRoot(candidate))return candidate;}}}catch{}return claudeDir;})();const script=path.join(root,rel);if(fs.existsSync(script)){const result=spawnSync(process.execPath,[script,'session:start','scripts/hooks/session-start.js','minimal,standard,strict'],{input:raw,encoding:'utf8',env:process.env,cwd:process.cwd(),timeout:30000});const stdout=typeof result.stdout==='string'?result.stdout:'';if(stdout)process.stdout.write(stdout);else process.stdout.write(raw);if(result.stderr)process.stderr.write(result.stderr);if(result.error||result.status===null||result.signal){const reason=result.error?result.error.message:(result.signal?'signal '+result.signal:'missing exit status');process.stderr.write('[SessionStart] ERROR: session-start hook failed: '+reason+String.fromCharCode(10));process.exit(1);}process.exit(Number.isInteger(result.status)?result.status:0);}process.stderr.write('[SessionStart] WARNING: could not resolve ECC plugin root; skipping session-start hook'+String.fromCharCode(10));process.stdout.write(raw);\""
+            "command": "node \"${CLAUDE_PLUGIN_ROOT}/scripts/hooks/session-start-bootstrap.js\""
           }
         ],
</file context>

Verify each finding against the current code and only fix it if needed.

In `@hooks/hooks.json` at line 149, The session-start hook command relies on
CLAUDE_PLUGIN_ROOT being set and fails before session-start-bootstrap.js can run
its fallback logic (resolvePluginRoot()); change the hook to invoke a small
launcher that locates the script relative to the installed package (or node
module resolution) so the bootstrap can execute even if CLAUDE_PLUGIN_ROOT is
unset—specifically, replace the direct expansion of
${CLAUDE_PLUGIN_ROOT}/scripts/hooks/session-start-bootstrap.js with a call to
node that requires a launcher (or uses require.resolve on
"scripts/hooks/session-start-bootstrap.js") which then calls the bootstrap's
main entry (session-start-bootstrap.js) allowing resolvePluginRoot() to run and
apply its fallback paths.