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/zigrivers/scaffold/post-tool-usegit clone --depth 1 https://github.com/zigrivers/scaffoldGrade A, and why
PostToolUse 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 2d 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
{
"PostToolUse": [
{
"matcher": "Bash",
"hooks": [
{
"type": "command",
"command": "if echo \"$CC_BASH_COMMAND\" | grep -q 'gh pr create'; then echo '\\n⚠️ MANDATORY: Run `scaffold run review-pr` to execute the 3-channel review.\\n\\nAuth recovery if needed: `! codex login` (Codex) / `! gemini -p \"hello\"` (Gemini)\\nAlways run CLI commands in foreground — never use run_in_background.\\nFix all P0/P1/P2 findings before moving on. Do NOT skip any channel.'; fi"
}
]
}
]
}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.
- 2d ago First seen · 13 lines scan A 6ca7bad8df33
PostToolUse is a hook published in the GitHub repository zigrivers/scaffold (5 stars, last pushed 2d 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 2026-08-31.
Other hooks, from other repositories
SessionStart
Runs when a session starts on startup, clear and compact, running an inline shell check. From voidvec/drogon-claude-plugin.
PostToolUse
Runs after a tool call finishes for Write, Edit and MultiEdit tool calls, executing posttooluse.py via python. From voidvec/drogon-claude-plugin.
PostToolUse
Runs after a tool call finishes for Edit, Write and MultiEdit tool calls, executing test-gate.sh. From jmanhype/speckit.
SessionStart
Runs when a session starts, running an inline shell check. From jmanhype/speckit.
PreCompact
Runs before the context is compacted, running an inline shell check. From jmanhype/speckit.
Stop
Runs when the agent finishes a response, executing stop-check.sh via bash. From LiorCohen/sdd.