agentmods.dev

SessionEnd

A session-ending hook that runs two project scripts when a coding session closes. One records lessons learned and the other prepares a handoff for the next session.

In plain words
What is it for?
Use it to save learnings and session state automatically at the end of a session. The scripts must exist in the project's .claude/hooks directory.
Why use it?
It prevents useful context from being lost when work stops or moves to another session. Without it, the next session may need to reconstruct what happened.

Hook for Claude Code

2 12d ago A scan tokens not measured copy · 53% MIT
View the source file Black-coffe/vulyk
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/black-coffe/vulyk/session-end
Clone the repo
git clone --depth 1 https://github.com/Black-coffe/vulyk

Made for: Claude Code.

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 53% copy Near-identical to another mod 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 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.

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

This is a copy

53% identical to SessionStart — 11 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.

.claude/settings.json · 16 lines

What it actually says

{
  "SessionEnd": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "$CLAUDE_PROJECT_DIR/.claude/hooks/session-end-learnings.sh"
        },
        {
          "type": "command",
          "command": "$CLAUDE_PROJECT_DIR/.claude/hooks/handoff.sh sessionend"
        }
      ]
    }
  ]
}
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.

  1. 2d ago First seen · 16 lines scan A 8be4f07842fd

Subscribe to this mod's changes

SessionEnd is a hook published in the GitHub repository Black-coffe/vulyk (2 stars, last pushed 12d 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. It is 53% identical to SessionStart, differing in 11 lines, and is treated as a copy.

Learning and teachingagentic-codingai-agentsai-frameworkanthropicclaudeclaude-code
Related

Other hooks, from other repositories

SessionEnd

Runs when a session ends, executing claude-session-end.ps1. From orwa-mahmoud/nightshift.

orwa-mahmoud/nightshift · not measured

PreToolUse

Runs before the agent uses a tool for Write, Edit, Bash, Agent, Task, SendMessage and TaskStop tool calls, running bash (3 commands). From modu-ai/moai-adk.

modu-ai/moai-adk · not measured

SessionEnd

Runs when a session ends, executing sessionend_release.py. From compforge/devloop.

compforge/devloop · not measured

PostToolUse

Runs after a tool call finishes for Write and Edit tool calls, executing format_and_lint.sh. From supabase/supabase.

supabase/supabase · not measured

SessionStart

Runs when a session starts, executing on-start.js via node. From google-gemini/gemini-cli.

google-gemini/gemini-cli · not measured

SessionStart

Runs when a session starts on startup, executing install_pkgs.sh. From supabase/supabase.

supabase/supabase · not measured