Getting it into your agent
There is no command for this one: it runs only inside a plugin, and the catalogue could not identify which plugin ships it. The source is linked below.
Wrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/hooks/sifxprime/kodelyth-ecc/session-end)<a href="https://agentmods.dev/hooks/sifxprime/kodelyth-ecc/session-end"><img src="https://agentmods.dev/badge/hooks/sifxprime/kodelyth-ecc/session-end.svg" alt="Measured on agentmods" height="20"></a>Grade A, and why
SessionEnd scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the commands this hook runs, not an audit. A hook is shell that executes on your machine at the event it names, which is why every command in it is printed with what was found.
Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
"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 hasR This is a copy
89% identical to Stop — 122 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 17 lines — stays where its author put it; the contents beside it link to each section on GitHub.
{
"SessionEnd": [
{
"matcher": "*",
"hooks": [
{
"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','ecc'),path.join(claudeDir,'plugins','ecc@ecc'),path.join(claudeDir,'plugins','marketplace','ecc'),path.join(claudeDir,'plugins','kodelyth-ecc'),path.join(claudeDir,'plugins','kodelyth-ecc@kodelyth-ecc'),path.join(claudeDir,'plugins','marketplace','kodelyth-ecc')]){if(hasRunnerRoot(candidate))return candidate;}try{for(const slug of ['ecc','kodelyth-ecc']){const cacheBase=path.join(claudeDir,'plugins','cache',slug);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:end:marker','scripts/hooks/session-end-marker.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.stdWhat else hooks.json configures
This page is one entry in a file that holds 8. Installing the file brings all of them; each is measured and scanned on its own page.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 17 lines scan A 65c19de4b8a0
SessionEnd is a hook published in the GitHub repository sifxprime/kodelyth-ecc (11 stars, last pushed 4d ago), licensed MIT. Its token cost is not measured: a hook is shell that never enters the context. A static security scan graded it A with 1 finding (runs shell commands). It is 89% identical to Stop, differing in 122 lines, and is treated as a copy.
Other hooks, from other repositories
PreToolUse
Runs before the agent uses a tool for Bash tool calls, executing pre-release-block.sh. From sachinshelke/codevira.
Notification
Runs when the agent sends a notification for permission_prompt, idle_prompt and auth_success tool calls, running cas hook Notification. From codingagentsystem/cas.
SessionStart
Runs when a session starts, executing on-start.js via node. From google-gemini/gemini-cli.
PreToolUse
Runs before the agent uses a tool for Bash tool calls, running an inline shell check. From apache/superset.
PreToolUse
Runs before the agent uses a tool, executing pre-write.sh and pre-bash.sh (2 commands). From anthropics/claude-cookbooks.
PreCompact
Runs before the context is compacted for manual and auto tool calls, executing hook-handler.cjs via node (4 commands). From ruvnet/RuView.