agentmods.dev

SessionEnd

Automatic actions that run when a coding session ends: saving session state and evaluating the session for reusable patterns.

In plain words
What is it for?
Use it to save the ending state of a session and review what happened for patterns that may be worth extracting.
Why use it?
It helps preserve context between sessions and identify useful lessons after work is finished.

Hook

87 3mo ago A scan tokens not measured original MIT
View the source file Jamkris/everything-gemini-code
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/jamkris/everything-gemini-code/session-end
Clone the repo
git clone --depth 1 https://github.com/Jamkris/everything-gemini-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 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 yesterday.

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.

hooks/hooks.json · 24 lines

What it actually says

{
  "SessionEnd": [
    {
      "matcher": "*",
      "hooks": [
        {
          "type": "command",
          "command": "node \"$HOME/.gemini/extensions/everything-gemini-code/scripts/hooks/run.js\" session-end"
        }
      ],
      "description": "Persist session state on end"
    },
    {
      "matcher": "*",
      "hooks": [
        {
          "type": "command",
          "command": "node \"$HOME/.gemini/extensions/everything-gemini-code/scripts/hooks/run.js\" evaluate-session"
        }
      ],
      "description": "Evaluate session for extractable patterns"
    }
  ]
}
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. yesterday First seen · 24 lines scan A a4dd9f56a5f5

Subscribe to this mod's changes

SessionEnd is a hook published in the GitHub repository Jamkris/everything-gemini-code (87 stars, last pushed 3mo 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.

Code reviewData and AIai-agentsantigravitydeveloper-toolsgemini-cligemini-cli-extensiongemini-cli-skills
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AfterTool

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