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/ambient-code/agentready/post-tool-usegit clone --depth 1 https://github.com/ambient-code/agentreadyGrade 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 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
{
"PostToolUse": [
{
"matcher": "Edit|Write",
"hooks": [
{
"type": "command",
"command": "black --quiet \"$CLAUDE_FILE_PATH\" 2>/dev/null; isort --quiet \"$CLAUDE_FILE_PATH\" 2>/dev/null; true"
}
]
}
]
}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 866e7cca72d5
PostToolUse is a hook published in the GitHub repository ambient-code/agentready (151 stars, last pushed 5d 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
PostToolUse
Runs after a tool call finishes for Write, Edit, Bash, Write, Edit, Bash, Read, Write, Edit, Glob, Grep, Task, Bash, Task, Edit, Write, Read and mcp__.* tool calls, executing envrc-guarded-source.sh, dispatch.cjs, tdd-red-failure-tracker.cjs, task-clear-model.cjs and json-toon-projector.cjs (7 commands). From…
SessionStart
Runs when a session starts, executing envrc-guarded-source.sh, compact-handoff.cjs and dispatch.cjs with --resume (3 commands). From nguyenthienthanh/aura-frog.
Stop
Runs when the agent finishes a response, executing dispatch.cjs, envrc-guarded-source.sh and context-auto-refresh.cjs via node (3 commands). From nguyenthienthanh/aura-frog.
UserPromptSubmit
Runs when you submit a prompt, before the agent sees it, executing dispatch.cjs and envrc-guarded-source.sh via node (2 commands). From nguyenthienthanh/aura-frog.
SubagentStart
Runs when a subagent starts, executing subagent-init.cjs via node. From nguyenthienthanh/aura-frog.
PreCompact
Runs before the context is compacted, executing compact-handoff.cjs via node with --pre-compact. From nguyenthienthanh/aura-frog.