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/intentdriven/abcd/session-endgit clone --depth 1 https://github.com/intentdriven/abcdGrade A, and why
SessionEnd 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
{
"SessionEnd": [
{
"hooks": [
{
"type": "command",
"command": "r=\"${CLAUDE_PLUGIN_ROOT:-}\"; [ -n \"$r\" ] || exit 0; if [ -f \"$r/abcd\" ] && [ -x \"$r/abcd\" ]; then exec \"$r/abcd\" hook session-end; fi; if command -v abcd >/dev/null 2>&1; then exec abcd hook session-end; fi; printf '%s\\n' \"abcd: the plugin binary is missing, so this session's transcript was not captured — install per https://github.com/intentdriven/abcd#install\" >&2; exit 1"
}
]
}
]
}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 · 12 lines scan A a0a1e8e58d8c
SessionEnd is a hook published in the GitHub repository intentdriven/abcd (3 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
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PostToolUse
Runs after a tool call finishes, executing hooks.py via python3. From shanraisshan/codex-cli-best-practice.
PostToolUse
Runs after a tool call finishes for Write and Edit tool calls, executing format_and_lint.sh. From supabase/supabase.
SessionStart
Runs when a session starts on startup, executing install_pkgs.sh. From supabase/supabase.
SessionStart
Runs when a session starts, executing on-start.js via node. From google-gemini/gemini-cli.
PreToolUse
Runs before the agent uses a tool, executing pre-write.sh and pre-bash.sh (2 commands). From anthropics/claude-cookbooks.