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.
npx agentmods add hooks/everyone-needs-a-copilot/claude-copilot/user-prompt-submitgit clone --depth 1 https://github.com/Everyone-Needs-A-Copilot/claude-copilotWrote 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/everyone-needs-a-copilot/claude-copilot/user-prompt-submit)<a href="https://agentmods.dev/hooks/everyone-needs-a-copilot/claude-copilot/user-prompt-submit"><img src="https://agentmods.dev/badge/hooks/everyone-needs-a-copilot/claude-copilot/user-prompt-submit.svg" alt="Measured on agentmods" height="20"></a>Grade A, and why
UserPromptSubmit 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 today.
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
53% identical to SessionStart — 16 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
{
"UserPromptSubmit": [
{
"hooks": [
{
"type": "command",
"command": "bash \"$(git rev-parse --show-toplevel)/.claude/hooks/user-prompt-submit.sh\""
}
]
},
{
"hooks": [
{
"type": "command",
"command": "bash \"$CLAUDE_PROJECT_DIR/.claude/hooks/copilot-hook.sh\" user-prompt-submit",
"_copilot_source": "claude-copilot"
}
]
}
]
}What else settings.json configures
This page is one entry in a file that holds 5. 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.
- today First seen · 21 lines scan A 72cee2809e9b
UserPromptSubmit is a hook published in the GitHub repository Everyone-Needs-A-Copilot/claude-copilot (13 stars, last pushed today), 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 53% identical to SessionStart, differing in 16 lines, and is treated as a copy.
Other hooks, from other repositories
Stop
Runs when the agent finishes a response, executing guardloop-harvest.sh and batch-check.sh (2 commands). From samibs/skillfoundry.
PreToolUse
Runs before the agent uses a tool for Bash, Edit and Write tool calls, executing validate-bash.sh, gateguard.sh and config-protect.sh (3 commands). From samibs/skillfoundry.
Stop
Runs when the agent finishes a response, executing handoff.sh. From Black-coffe/vulyk.
UserPromptSubmit
Runs when you submit a prompt, before the agent sees it, running an inline shell check (4 commands). From EchoingVesper/mcp-task-orchestrator.
PostToolUse
Runs after a tool call finishes for Write and Edit tool calls, executing format_and_lint.sh. From supabase/supabase.
SessionStart
Runs when a session starts, executing on-start.js via node. From google-gemini/gemini-cli.