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/frabcd/codex-ai-game-studio/post-compactgit clone --depth 1 https://github.com/frabcd/codex-ai-game-studioGrade A, and why
PostCompact 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 3d 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
86% identical to PreCompact — 9 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
{
"PostCompact": [
{
"matcher": "manual|auto",
"hooks": [
{
"type": "command",
"command": "python3 \"${PLUGIN_ROOT}/scripts/hook_dispatch.py\" post-compact",
"commandWindows": "py -3 \"%PLUGIN_ROOT%\\scripts\\hook_dispatch.py\" post-compact",
"timeout": 5,
"statusMessage": "Restoring transaction safety state",
"additionalContextLimit": 600
}
]
}
]
}What else hooks.json configures
This page is one entry in a file that holds 9. 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.
- 3d ago First seen · 17 lines scan A e4eadc0fd940
PostCompact is a hook published in the GitHub repository frabcd/codex-ai-game-studio (7 stars, last pushed 10d 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 86% identical to PreCompact, differing in 9 lines, and is treated as a copy.
Other hooks, from other repositories
PreToolUse
Runs before the agent uses a tool, executing claude_hook_adapter.py via python3 with --event, --audit and --db-path. From 90le/worker-rights-cn.
SessionStart
Runs when a session starts, executing cli.js via node. From code-yeongyu/codex-rules.
PostCompact
Runs after the context is compacted for manual and auto tool calls, executing cli.js via node. From code-yeongyu/codex-rules.
SessionStart
Runs when a session starts on compact and clear, executing reinject-handover.mjs via node. From ssauma/ai-safe-driver.
Stop
Runs when the agent finishes a response, executing hook.cjs via node with --no-warnings. From hakiyaka/capsule.
SessionStart
Runs when a session starts on startup, resume, clear and compact, executing session_start.sh via bash. From Dev-Jahn/hippocampus.