ClaudeSuperPower
B

BeforeAgent

Hook

Fires on

BeforeAgent

Where this sits in a session

  1. Session start
  2. Prompt submitted
  3. Prompt expansion
  4. Before tool use
  5. After tool use
  6. Notification
  7. Before compaction
  8. Subagent finished
  9. Turn finished
  10. Session end

Can blockThis hook is able to deny the action or send Claude back to work.

What it runs

Executed automatically when the event fires — no prompt, no confirmation.

command· timeout 10s
bash ./hooks/suggest-endor-tools.sh BeforeAgent

Install it yourself

Paste into .claude/settings.json to run this hook without installing the whole plugin. Adjust the paths to point at your own copy of the scripts.

settings.json
{
  "hooks": {
    "BeforeAgent": [
      {
        "hooks": [
          {
            "type": "command",
            "command": "bash ./hooks/suggest-endor-tools.sh BeforeAgent",
            "timeout": 10
          }
        ]
      }
    ]
  }
}

Source

Read this before installing — it runs on your machine with your permissions.

#!/usr/bin/env bash
# endor_agent_kit_managed=true

if ! command -v python3 >/dev/null 2>&1; then
  exit 0
fi

payload="$(cat)"
HOOK_PAYLOAD="$payload" python3 - "$@" <<'PY' || true
import json
import os
import re
import sys


def emit(event_name: str, message: str) -> None:
    if not message:
        return
    print(json.dumps({
        "hookSpecificOutput": {
            "hookEventName": event_name,
            "additionalContext": message,
        }
    }, separators=(",", ":")))


try:
    raw = os.environ.get("HOOK_PAYLOAD", "")
    payload = json.loads(raw or "{}")
    if not isinstance(payload, dict):
        raise ValueError("hook payload must be an object")
    default_event = sys.argv[1] if len(sys.argv) > 1 else "UserPromptSubmit"
    event = str(
        payload.get("hook_event_name")
        or payload.get("hookEventName")
        or payload.get("event")
        or default_event
    )
    prompt = str(
        payload.get("prompt")
        or payload.get("user_prompt")
        or payload.get("message")
        or payload.get("transcript")
        or ""
    )
    prompt_lc = prompt.lower()
    if not prompt_lc or "endor_agent_kit_managed" in prompt_lc:
        raise SystemExit(0)

    routes = []
    if re.search(r"\b(cve-\d{4}-\d+|ghsa-[a-z0-9-]+|vulnerab|advisory)\b", prompt_lc):
        routes.append("Use `vulnerability-explainer` for CVE/GHSA explanation or `package-risk-summary` when package-version posture matters.")
    if re.search(r"\b(package|dependency|library|module)\b", prompt_lc) and re.search(r"\b(safe|risk|install|add|upgrade|version)\b", prompt_lc):
        routes.append("Use `dependency-decision-helper` before adding a new dependency, or `package-risk-summary` for a known package version.")
    if re.search(r"\b(endorctl|scan|host-check|mcp|namespace|auth|token|setup|onboard|error|failed|failure)\b", prompt_lc):
        routes.append("Use `endor-troubleshooter` for Endor errors and setup failures; use `probe-droid` for GitHub onboarding coverage.")
    if re.search(r"\b(findings?|finding uuid|severity|filter|dismissed|reachable|epss|kev)\b", prompt_lc):
        routes.append("Use `findings-browser` to browse or filter existing Endor findings without starting a new scan.")
    if re.search(r"\b(ci/cd|cicd|github actions?|workflow|branch protection|ruleset|runner|supply chain|posture)\b", prompt_lc):
        routes.append("For CI/CD posture questions, keep evidence read-only. Use `findings-browser` for existing CI/CD or GitHub Actions findings and `probe-droid` for GitHub onboarding evidence until a dedicated posture workflow is available.")

    if routes:
        emit(event, "Endor Agent Kit advisory routing:\n- " + "\n- ".join(dict.fromkeys(routes)))
except Exception:
    pass
PY

exit 0

Shipped by 1 plugin

Installing any of these installs this hook.

Reviews

Log in to leave a review.

No reviews yet — be the first.

Explore related

Other things in this space — across every part of the ecosystem, not just hooks.