agentmods.dev

SessionStart

SessionStart is a hook for Claude Code from DorShaer/Husk. Its token cost is not measured, scanned B, original, no licence file.

A group of scripts that runs when a coding-agent session starts. A session is one period of work from opening or starting the agent until it ends.

In plain words
What is it for?
Use it to load context, preserve Kitty environment settings, update freshness data, and apply settings when a session opens.
Why use it?
It prepares session context and settings before work begins, and can repair or load parts of the agent environment.

Hook for Claude Code

Written for Claude Code: a Claude Code hooks.json.

One of 11 entries in hooks.json upstream. Installing this one merges just its entry into your config; the other 10 are separate, each on its own page.

not rated 14repo yesterday B scan tokens not measured custom licence

Good fit Use it to load context, preserve Kitty environment settings, update freshness data, and apply settings when a session opens.

Compare 6 hooks from other repositories ↓
Install with agentmods
npx agentmods add hooks/dorshaer/husk/session-start
View source ↗ DorShaer/Husk dorshaer.github.io
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.

Clone the repo
git clone --depth 1 https://github.com/DorShaer/Husk

Made for: Claude Code.

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/dorshaer/husk/session-start/github.svg)](https://agentmods.dev/hooks/dorshaer/husk/session-start)
Your own site
<a href="https://agentmods.dev/hooks/dorshaer/husk/session-start"><img src="https://agentmods.dev/badge/hooks/dorshaer/husk/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/dorshaer/husk/session-start"><img src="https://agentmods.dev/badge/hooks/dorshaer/husk/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 B 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Security

Grade B, and why

SessionStart scanned grade B 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 1mo 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

"command": "bun $HOME/.claude/LIFEOS/TOOLS/SettingsBackport.ts; bun $HOME/.claude/LIFEOS/TOOLS/MergeSettings.ts --system $HOME/.claude/settings.system.json --user $HOME/.claude/LIFEOS/USER/CONFIG/settings.user.json --out
libs/lifeos/hooks/hooks.json · 33 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Same file

What else hooks.json configures

This page is one entry in a file that holds 11. 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. 1mo ago First seen · 33 lines scan B 714051ef5046

Subscribe to this mod's changes

SessionStart is a hook published in the GitHub repository DorShaer/Husk (14 stars, last pushed yesterday), with no licence file. Its token cost is not measured: a hook is shell that never enters the context. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Claude Codeagentsai-agentsaiderautomationcodex-cli
Related

Other hooks, from other repositories

SessionStart

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

supabase/supabase · 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

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