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SessionStart

SessionStart is a hook for Claude Code from megamen32/LastHumanCommit. Its token cost is not measured, scanned A, original, MIT.

A session-start hook that runs a Python time-checking script when a coding session begins. A hook is an automatic action triggered by an event.

In plain words
What is it for?
It helps run Last Human Commit's time guard at the start of Codex sessions.
Why use it?
It makes the time check happen automatically instead of relying on someone to run it manually.

Hook for Claude Code

Written for Claude Code: ${CLAUDE_PLUGIN_ROOT variable. Also seen: mentions Codex.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the last-human-commit plugin — 22 skills, 1 command, 10 hooks shipped together

One of 10 entries in hooks.json upstream. Installing this one merges just its entry into your config; the other 9 are separate, each on its own page.

not rated 2repo changed yesterday A scan tokens not measured original MIT

Good fit It helps run Last Human Commit's time guard at the start of Codex sessions.

Compare 6 hooks from other repositories ↓
View source ↗ megamen32/LastHumanCommit bezrabotnyi.com
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add megamen32/LastHumanCommit
Claude Code
/plugin install last-human-commit

Made for: Claude Code.

Or install last-human-commit, the plugin that ships this one along with the rest of its 22 skills, 1 command, 10 hooks.

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.

agentmods badge for SessionStart

README.md
[![agentmods](https://agentmods.dev/badge/hooks/megamen32/lasthumancommit/session-start/github.svg)](https://agentmods.dev/hooks/megamen32/lasthumancommit/session-start)
Your own site
<a href="https://agentmods.dev/hooks/megamen32/lasthumancommit/session-start"><img src="https://agentmods.dev/badge/hooks/megamen32/lasthumancommit/session-start/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for SessionStart

Your own site · 80×15
<a href="https://agentmods.dev/hooks/megamen32/lasthumancommit/session-start"><img src="https://agentmods.dev/badge/hooks/megamen32/lasthumancommit/session-start.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
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. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

SessionStart 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.

Origin

Copies of this mod

3 near-identical copies found in the catalogue:

plugins/last-human-commit/hooks/hooks.json · 13 lines

What it actually says

{
  "SessionStart": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "python3 \"${CLAUDE_PLUGIN_ROOT:-${CODEX_PLUGIN_ROOT:-${PLUGIN_ROOT:-${ZCODE_PLUGIN_ROOT:-$HOME/.codex/.tmp/marketplaces/megamen32-plugins/plugins/last-human-commit}}}}/tools/lhc_entry.py\" --event SessionStart || { printf '%s\\n' 'LHC entry unavailable; message processing continues.' >&2; :; }",
          "timeout": 3
        }
      ]
    }
  ]
}
Same file

What else hooks.json configures

This page is one entry in a file that holds 10. Installing the file brings all of them; each is measured and scanned on its own page.

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 Changed ff723f9172c8
  2. 1mo ago Changed 544459b226c7
  3. 1mo ago Changed 3d47d79834ef
  4. 1mo ago First seen · 13 lines scan A d9ff8eb956e8

Subscribe to this mod's changes

SessionStart is a hook published in the GitHub repository megamen32/LastHumanCommit (2 stars, last pushed yesterday), 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 2026-08-31.

Related

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PostToolUse

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PreToolUse

Runs before the agent uses a tool for Bash tool calls, running an inline shell check. From apache/superset.

apache/superset · not measured

PreToolUse

Runs before the agent uses a tool, executing pre-write.sh and pre-bash.sh (2 commands). From anthropics/claude-cookbooks.

anthropics/claude-cookbooks · not measured

PostToolUse

Runs after a tool call finishes for Bash tool calls, executing hooks.sh via sh (3 commands). From anthropics/claude-plugins-official.

anthropics/claude-plugins-official · not measured

PreCompact

Runs before the context is compacted for manual and auto tool calls, executing hook-handler.cjs via node (4 commands). From ruvnet/RuView.

ruvnet/RuView · not measured