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opensource-nat-brain-oracle: Hook for Claude Code

.claude/settings.json

SessionStart is a hook for Claude Code from Soul-Brews-Studio/opensource-nat-brain-oracle. Its token cost is not measured, scanned B, original, no licence file.

A session-start hook that runs shell commands when an agent session begins. It runs scripts that show the agent identity and the latest handoff information.

In plain words
What is it for?
It is for showing agent identity and recent handoff details whenever a new session starts.
Why use it?
It automatically restores useful session context at startup instead of requiring those scripts to be run manually.

Hook for Claude Code

Written for Claude Code: installed under .claude/.

This is Soul-Brews-Studio/opensource-nat-brain-oracle's own configuration. It tells Claude Code how to work on opensource-nat-brain-oracle itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything opensource-nat-brain-oracle configures →

One of 6 entries in settings.json — they are configured in one file and arrive together.

not rated 10 22d ago B scan tokens not measured no licence
View the source file Soul-Brews-Studio/opensource-nat-brain-oracle
Reuse

Borrowing it

Nothing to install: this file belongs to Soul-Brews-Studio/opensource-nat-brain-oracle. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Soul-Brews-Studio/opensource-nat-brain-oracle/main/.claude/settings.json
Clone the repo
git clone --depth 1 https://github.com/Soul-Brews-Studio/opensource-nat-brain-oracle

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/soul-brews-studio/opensource-nat-brain-oracle/session-start.svg)](https://agentmods.dev/hooks/soul-brews-studio/opensource-nat-brain-oracle/session-start)
Your own site
<a href="https://agentmods.dev/hooks/soul-brews-studio/opensource-nat-brain-oracle/session-start"><img src="https://agentmods.dev/badge/hooks/soul-brews-studio/opensource-nat-brain-oracle/session-start.svg" alt="Measured on agentmods" 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. Scan, not verified.
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 6d 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": "cat /Users/nat/.claude/plugins/marketplaces/nat-data-personal/knowledge/oracle-philosophy.md /Users/nat/.claude/plugins/marketplaces/nat-data-personal/knowledge/writing-style.md 2>/dev/null"
.claude/settings.json · 24 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Same file

What else settings.json configures

This page is one entry in a file that holds 6. 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. 6d ago First seen · 24 lines scan B c005577f4352

Subscribe to this mod's changes

SessionStart is a hook published in the GitHub repository Soul-Brews-Studio/opensource-nat-brain-oracle (10 stars, last pushed 22d ago), 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 2026-08-31.

Related

Other hooks, from other repositories

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

PreCompact

Runs before the context is compacted for manual and auto tool calls, executing hook-handler.cjs via node (4 commands). From ruvnet/RuView.

ruvnet/RuView · not measured

SessionStart

Runs when a session starts on startup, clear and compact, executing run-hook.cmd. From obra/superpowers.

obra/superpowers · not measured

SessionStart

Runs when a session starts, executing hook-handler.cjs and auto-memory-hook.mjs via node (2 commands). From ruvnet/RuView.

ruvnet/RuView · not measured