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/jdanigo/hydraia/stopgit clone --depth 1 https://github.com/jdanigo/hydraiaGrade A, and why
Stop 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 yesterday.
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
{
"Stop": [
{
"hooks": [
{
"type": "command",
"command": "\"${CLAUDE_PLUGIN_ROOT}/hooks/summary.sh\"",
"async": false
}
]
}
]
}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.
- yesterday First seen · 13 lines scan A 99ca48c60b0f
Stop is a hook published in the GitHub repository jdanigo/hydraia (8 stars, last pushed 12d 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, running bunx @desplega.ai/agent-swarm@latest hook. From desplega-ai/agent-swarm.
PreToolUse
Runs before the agent uses a tool for Edit, Write, Grep, Glob, Bash, Edit, Write, NotebookEdit and Bash tool calls, executing spec-hint.js, module-hint.js and docs-hint.js via node (3 commands). From kaanozhan/Frame.
SessionStart
Runs when a session starts on startup and resume, executing goalflight-session-start-watchdog.sh. From simonrowland/goal-flight.
PostToolUse
Runs after a tool call finishes for Edit and Write tool calls, executing lint.sh. From traceroot-ai/traceroot.
PreToolUse
Runs before the agent uses a tool for Bash, Edit and Write tool calls, running python3. From zaingz/coding-quality-loop.
SessionStart
Runs when a session starts, executing session-start.sh. From mendixlabs/mxcli.