A command that runs automatically when a Claude Code session ends. It starts a JavaScript dispatch script in the background.

Use it to trigger the plugin's end-of-session processing whenever Claude Code closes a session.

It removes the need to run the session-ending dispatch manually and lets that work continue without holding up the session.

SessionEnd — Hook by jongwony

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add hooks/jongwony/epistemic-protocols/session-end

Clone the repo

git clone --depth 1 https://github.com/jongwony/epistemic-protocols

Or install anamnesis, the plugin that ships this one along with the rest of its 1 skill, 4 hooks.

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

SessionEnd scanned grade A with 0 findings 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 3d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

Copies of this mod

5 near-identical copies found in the catalogue:

PreCompact — 94% identical, 2 lines differ
Stop — 92% identical, 2 lines differ
SubagentStop — 92% identical, 2 lines differ
UserPromptSubmit — 86% identical, 5 lines differ
PreCompact — 81% identical, 6 lines differ

anamnesis/hooks/hooks.json · 13 lines

What it actually says

{
  "SessionEnd": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "node \"${CLAUDE_PLUGIN_ROOT}/scripts/hypomnesis-dispatch.mjs\"",
          "async": true
        }
      ]
    }
  ]
}

Changes

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.

3d ago First seen · 13 lines scan A 7ca5fe772d91

Subscribe to this mod's changes

SessionEnd is a hook published in the GitHub repository jongwony/epistemic-protocols (160 stars, last pushed 3d 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 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

ai-collaboration claude-code epistemology metacognition plugin

SessionEnd

Getting it into your agent

Grade A, and why

Nothing flagged

Copies of this mod

What it actually says

What this file has done since we first saw it

Other hooks, from other repositories

Stop

PreToolUse

SessionStart

SessionStart

TaskCompleted

SessionEnd