agentmods.dev

SessionStart

A session-start hook that runs a setup-check shell script whenever a coding session begins.

In plain words
What is it for?
Use it to run the project's check-setup.sh script automatically at session start.
Why use it?
It checks the working setup at the point where problems can be found, before other work starts.

Hook

121 3mo ago A scan tokens not measured copy · 100% MIT
View the source file mathiaschu/watch
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/mathiaschu/watch/session-start
Clone the repo
git clone --depth 1 https://github.com/mathiaschu/watch
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 100% copy Near-identical to another mod 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

This is a copy

100% identical to SessionStart — 0 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.

hooks/hooks.json · 14 lines

What it actually says

{
  "SessionStart": [
    {
      "matcher": "",
      "hooks": [
        {
          "type": "command",
          "command": "bash ${CLAUDE_PLUGIN_ROOT}/hooks/scripts/check-setup.sh",
          "timeout": 5
        }
      ]
    }
  ]
}
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 · 14 lines scan A a5ec2c3a198c

Subscribe to this mod's changes

SessionStart is a hook published in the GitHub repository mathiaschu/watch (121 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. It is 100% identical to SessionStart, differing in 0 lines, and is treated as a copy.

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Related

Other hooks, from other repositories

SessionStart

Runs when a session starts, executing check-setup.sh via bash. From EzekielOgunkunle/voxpip.

EzekielOgunkunle/voxpip · not measured

SessionEnd

Runs when a session ends, executing post.sh. From T0mSIlver/localvoxtral.

T0mSIlver/localvoxtral · not measured

PreToolUse

Runs before the agent uses a tool for Artifact tool calls, running python. From WatsonTsai/smart-brief.

WatsonTsai/smart-brief · not measured

SessionStart

Runs when a session starts on startup, resume, clear and compact, executing gate.py via python3 with --clear. From emanzurv/quiz-me-skill.

emanzurv/quiz-me-skill · not measured

SessionStart

Runs when a session starts, executing record-session.sh. From jakemarsh/ccthread.

jakemarsh/ccthread · not measured

SessionStart

Runs when a session starts, executing session-start-banner.sh. From codyhxyz/create-claude-plugin.

codyhxyz/create-claude-plugin · not measured