Caliber is a tool that generates and continuously updates AI context and configuration files for software repositories, including CLAUDE.md, AGENTS.md, and platform-specific rules. Development teams use it to keep coding agents aligned with the current codebase across tools such as Claude Code, Cursor, Codex, OpenCode, and GitHub Copilot. Its catalogue entries include skills, hooks, rules, instructions, and settings for configuring that workflow.
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/caliber-ai-org/ai-setup/user-prompt-submitgit clone --depth 1 https://github.com/caliber-ai-org/ai-setupWrote 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/caliber-ai-org/ai-setup/user-prompt-submit)<a href="https://agentmods.dev/hooks/caliber-ai-org/ai-setup/user-prompt-submit"><img src="https://agentmods.dev/badge/hooks/caliber-ai-org/ai-setup/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 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.
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.
What it actually says
{
"UserPromptSubmit": [
{
"matcher": "",
"hooks": [
{
"type": "command",
"command": "caliber learn observe --prompt",
"description": "Caliber: recording user prompt for correction detection"
}
]
}
]
}What else settings.json configures
This page is one entry in a file that holds 8. 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.
- 6d ago First seen · 14 lines scan A 5874051dd4d5
UserPromptSubmit is a hook published in the GitHub repository caliber-ai-org/ai-setup (1,259 stars, last pushed 1mo 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. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other hooks, from other repositories
SessionStart
Runs when a session starts, executing install-hooks.sh with --short. From jrenaldi79/harness-engineering.
SessionStart
Runs when a session starts on compact, executing post-compact-context.sh via bash. From aleolidev/claude-react-kit.
PostToolUse
Runs after a tool call finishes for Write, Edit, Bash and Bash tool calls, running an inline shell check (3 commands). From solanabr/solana-glossary.
PreToolUse
Runs before the agent uses a tool for Bash and Bash tool calls, running set -e (2 commands). From solanabr/solana-glossary.
SessionStart
Runs when a session starts, running echo '🤖 Solana Claude Config is ON 🚀🦾 powered by @Superte. From solanabr/solana-glossary.
Stop
Runs when the agent finishes a response, running an inline shell check. From solanabr/solana-glossary.