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/citiesskylinesmodding/agents-plugins/post-tool-usegit clone --depth 1 https://github.com/CitiesSkylinesModding/agents-pluginsGrade 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": "Edit|Write|MultiEdit",
"hooks": [
{
"type": "command",
"command": "mise exec bun -- bun \"$CLAUDE_PROJECT_DIR/.agents/hooks/check-line-length.ts\" --extensions ts,cs --suppressions \"oxlint-disable|@ts-expect-error|#pragma warning|ReSharper disable|SuppressMessage\""
}
]
}
]
}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 8929c9d29ac9
PostToolUse is a hook published in the GitHub repository CitiesSkylinesModding/agents-plugins (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
PostToolUse
Runs after a tool call finishes for Write and Edit tool calls, executing validate_track.py and check_version_sync.py via python3 (2 commands). From bitwize-music-studio/claude-ai-music-skills.
PostToolUse
Runs after a tool call finishes for Agent and Workflow tool calls, executing return.sh. From saadshahd/moo.md.
SessionStart
Runs when a session starts on startup, resume, clear and compact, executing memory-prime.sh. From saadshahd/moo.md.
PreToolUse
Runs before the agent uses a tool for Bash(git push*) tool calls, executing check-plugin-versions.sh. From acostanzo/quickstop.
SessionStart
Runs when a session starts on startup, resume and clear, executing session-start.sh via sh. From SI-IC/backlog-skill.
PostToolUse
Runs after a tool call finishes for Write, Edit, Write, Edit and Bash tool calls, running an inline shell check (3 commands). From ducpm2303/claude-java-plugins.