Borrowing it
Nothing to install: this file belongs to arikw/claude-code-matrix-bridge. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/arikw/claude-code-matrix-bridge/master/.claude/settings.jsongit clone --depth 1 https://github.com/arikw/claude-code-matrix-bridgeWrote 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.
[](https://agentmods.dev/hooks/arikw/claude-code-matrix-bridge/session-start)<a href="https://agentmods.dev/hooks/arikw/claude-code-matrix-bridge/session-start"><img src="https://agentmods.dev/badge/hooks/arikw/claude-code-matrix-bridge/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.
<a href="https://agentmods.dev/hooks/arikw/claude-code-matrix-bridge/session-start"><img src="https://agentmods.dev/badge/hooks/arikw/claude-code-matrix-bridge/session-start.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 1mo 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.
This is a copy
89% identical to SessionStart — 3 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.
What it actually says
{
"SessionStart": [
{
"hooks": [
{
"type": "command",
"command": "bash \"${CLAUDE_PROJECT_DIR}/hooks/session-start.sh\"",
"timeout": 3
}
]
}
]
}What else settings.json configures
This page is one entry in a file that holds 4. Installing the file brings all of them; each is measured and scanned on its own page.
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.
- 1mo ago First seen · 13 lines scan A 9f04374be68a
SessionStart is a hook published in the GitHub repository arikw/claude-code-matrix-bridge (2 stars, last pushed 5mo 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 89% identical to SessionStart, differing in 3 lines, and is treated as a copy.
Other hooks, from other repositories
CwdChanged
Runs on the CwdChanged event, executing rot-router.ps1 and prover-remind.ps1 with --stdin (2 commands). From Nova-Violet-Role/RoT-MoE.
Stop
Runs when the agent finishes a response, running node. From tractorjuice/arckit-claude.
Notification
Runs when the agent sends a notification, executing notification.sh via bash. From prime-radiant-inc/claude-plugin-cxdb-integration.
Stop
Runs when the agent finishes a response, executing find-node.sh via bash (14 commands). From speson/not-my-reforge.
UserPromptSubmit
Runs when you submit a prompt, before the agent sees it, executing tone-filter.py via python3. From zircote-plugins/tone-police.
PreToolUse
Runs before the agent uses a tool for Bash tool calls, running an inline shell check. From apache/superset.