It removes the need to check the gateway manually before using OpenTradex. It reports whether the service is available and how to start it if it is not.

SessionStart — Hook for Claude Code by deonmenezes/opentradex

SessionStart

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

A session-start hook that runs a shell command when a coding session begins. It checks whether the OpenTradex gateway is running on local port 3210.

In plain words

What is it for?: Starting coding sessions that use OpenTradex. It helps confirm that the local trading service is reachable.
Why use it?: It removes the need to check the gateway manually before using OpenTradex. It reports whether the service is available and how to start it if it is not.

Written for Claude Code: SessionStart hook event.

Part of the opentradex plugin — 6 skills, 3 agents, 1 hook shipped together

Good fit Starting coding sessions that use OpenTradex. It helps confirm that the local trading service is reachable.

Compare 6 hooks from other repositories ↓

Install with agentmods

npx agentmods add hooks/deonmenezes/opentradex/session-start

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/deonmenezes/opentradex

Made for: Claude Code.

Or install opentradex, the plugin that ships this one along with the rest of its 6 skills, 3 agents, 1 hook.

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.

README.md

[![agentmods](https://agentmods.dev/badge/hooks/deonmenezes/opentradex/session-start/github.svg)](https://agentmods.dev/hooks/deonmenezes/opentradex/session-start)

Your own site

<a href="https://agentmods.dev/hooks/deonmenezes/opentradex/session-start"><img src="https://agentmods.dev/badge/hooks/deonmenezes/opentradex/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.

Your own site · 80×15

<a href="https://agentmods.dev/hooks/deonmenezes/opentradex/session-start"><img src="https://agentmods.dev/badge/hooks/deonmenezes/opentradex/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 1 finding. 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 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 2mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

"command": "bash -c 'curl -s --max-time 2 http://127.0.0.1:3210/api/ >/dev/null 2>&1 && echo \"[opentradex] gateway up on 3210\" || echo \"[opentradex] gateway not running — start with: npx opentradex run\"'"

claude-plugin/hooks/hooks.json · 12 lines

What it actually says

{
  "SessionStart": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "bash -c 'curl -s --max-time 2 http://127.0.0.1:3210/api/ >/dev/null 2>&1 && echo \"[opentradex] gateway up on 3210\" || echo \"[opentradex] gateway not running — start with: npx opentradex run\"'"
        }
      ]
    }
  ]
}

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.

2mo ago First seen · 12 lines scan A 3c1828cab2fb

Subscribe to this mod's changes

SessionStart is a hook published in the GitHub repository deonmenezes/opentradex (57 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 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

SessionStart next to 6 hooks from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
SessionStartdeonmenezes/opentradex	Hook	57	4mo ago	MIT	A	—	Claude Code
PostToolUsesupabase/supabase	Hook	115k	yesterday	Apache-2.0	A	—	Claude Code
SessionStartsupabase/supabase	Hook	115k	yesterday	Apache-2.0	A	—	Claude Code
SessionStartgoogle-gemini/gemini-cli	Hook	109k	yesterday	Apache-2.0	A	—	Claude Code
PreToolUseapache/superset	Hook	75k	yesterday	Apache-2.0	A	—	Claude Code
PreToolUseanthropics/claude-cookbooks	Hook	54k	2d ago	MIT	A	—	Claude Code
PostToolUseanthropics/claude-plugins-official	Hook	46k	yesterday	Apache-2.0	A	—	Claude Code