What is SessionStart?

A startup hook that runs commands when a coding-agent session starts, resumes, is cleared, compacted, or forked. It checks the MemoraX Code backend, records the workspace, and creates a session entry.

Use it to initialize MemoraX Code memory whenever an agent session begins or is reopened.

It prepares the memory service and keeps session context available across different kinds of session changes.

SessionStart — Hook for Claude Code by memorax-ai/memorax-code

About the project

MemoraX Code is a shared memory layer for AI coding agents that stores and recalls repository knowledge, engineering lessons, and working preferences across sessions. It helps developers avoid repeating context when working with Codex, Claude Code, and other supported agents. The catalogue entries provide hooks, instructions, skills, and a plugin for using MemoraX Code.

memorax-ai/memorax-code · 2,007 stars · on GitHub · code.memorax.net

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 memorax-ai/memorax-code

Claude Code

/plugin install memorax-code-claude-adapter

Made for: Claude Code.

Or install memorax-code-claude-adapter, the plugin that ships this one along with the rest of its 3 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.

README.md

[![agentmods](https://agentmods.dev/badge/hooks/memorax-ai/memorax-code/session-start/github.svg)](https://agentmods.dev/hooks/memorax-ai/memorax-code/session-start)

Your own site

<a href="https://agentmods.dev/hooks/memorax-ai/memorax-code/session-start"><img src="https://agentmods.dev/badge/hooks/memorax-ai/memorax-code/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/memorax-ai/memorax-code/session-start"><img src="https://agentmods.dev/badge/hooks/memorax-ai/memorax-code/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 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.

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

2 near-identical copies found in the catalogue:

UserPromptSubmit — 86% identical, 14 lines differ
Stop — 78% identical, 14 lines differ

packages/ts/memorax-code-claude-adapter/hooks/hooks.json · 25 lines

What it actually says

{
  "SessionStart": [
    {
      "matcher": "startup|resume|clear|compact|fork",
      "hooks": [
        {
          "type": "command",
          "command": "node \"${CLAUDE_PLUGIN_ROOT}/hooks/runtime-hook.mjs\" ensure-backend",
          "statusMessage": "Checking MemoraX Code backend",
          "timeout": 35
        },
        {
          "type": "command",
          "command": "node \"${CLAUDE_PLUGIN_ROOT}/hooks/runtime-hook.mjs\" capture-cwd",
          "statusMessage": "Capturing MemoraX Code workspace"
        },
        {
          "type": "command",
          "command": "node \"${CLAUDE_PLUGIN_ROOT}/hooks/runtime-hook.mjs\" memory-cli-session",
          "timeout": 5
        }
      ]
    }
  ]
}

Same file

What else `hooks.json` configures

This page is one entry in a file that holds 3. 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.

2mo ago First seen · 25 lines scan A b96d03d2e07c

Subscribe to this mod's changes

SessionStart is a hook published in the GitHub repository memorax-ai/memorax-code (2,007 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 2026-08-30.

Claude Code ai-agents codex coding-memory developer-tools memorax

SessionStart next to 6 hooks from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
SessionStartmemorax-ai/memorax-code	Hook	2.0k	yesterday	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

SessionStart