agentmods.dev

SessionStart

A session-start hook that runs a configured shell command when a coding session begins.

In plain words
What is it for?
Use it to connect session startup with the Shipworthy session-start script.
Why use it?
It can perform a startup action automatically, so the same preparation does not need to be repeated manually.

Hook

7 4mo ago A scan tokens not measured original MIT
View the source file Vimalk0703/shipworthy
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/vimalk0703/shipworthy/session-start
Clone the repo
git clone --depth 1 https://github.com/Vimalk0703/shipworthy
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

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 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.

hooks/hooks.json · 14 lines

What it actually says

{
  "SessionStart": [
    {
      "matcher": "",
      "hooks": [
        {
          "type": "command",
          "command": "\"/path/to/shipworthy/hooks/session-start\"",
          "timeout": 5000
        }
      ]
    }
  ]
}
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 · 14 lines scan A 9240f3faed43

Subscribe to this mod's changes

SessionStart is a hook published in the GitHub repository Vimalk0703/shipworthy (7 stars, last pushed 4mo 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 2026-08-31.

Guardrailsai-codingclaude-codeclaude-code-plugincode-qualitydeveloper-tools
Related

Other hooks, from other repositories

SessionStart

Runs when a session starts on clear, compact, startup and resume, executing session-start.sh. From LerianStudio/ring.

LerianStudio/ring · not measured

PreToolUse

Runs before the agent uses a tool for Bash, Write, Edit and MultiEdit tool calls, executing run-hook.cmd (5 commands). From greglas75/zuvo.

greglas75/zuvo · not measured

UserPromptSubmit

Runs when you submit a prompt, before the agent sees it, executing drop.py via python3. From bcanfield/agentic-tech-debt.

bcanfield/agentic-tech-debt · not measured

StopFailure

Runs on the StopFailure event for rate_limit, server_error and unknown tool calls, executing run-hook.cmd. From greglas75/zuvo.

greglas75/zuvo · not measured

PostToolUse

Runs after a tool call finishes for Edit, Write, MultiEdit, apply_patch and ExitPlanMode tool calls, running an inline shell check (2 commands). From reidemeister94/development-skills.

reidemeister94/development-skills · not measured

SessionEnd

Runs when a session ends, executing session_end.py via python3. From avansaber/tailtest.

avansaber/tailtest · not measured