kipi-system: Hook for Claude Code

.claude/settings.json

PostToolUse is a hook for Claude Code from assafkip/kipi-system. Its token cost is not measured, scanned A, original, MIT.

A set of checks that runs after editing, writing, or shell commands finish in a project. The checks inspect files, scripts, prompts, wiring, plans, and related safeguards.

In plain words
What is it for?
Use it to automatically validate project safeguards and workflow rules after code edits or command execution.
Why use it?
It catches missing protection files, unsafe changes, invalid plans, and other integrity problems immediately after tool use.

Hook for Claude Code

Written for Claude Code: $CLAUDE_PROJECT_DIR variable.

This is assafkip/kipi-system's own configuration. It tells Claude Code how to work on kipi-system itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything kipi-system configures →

One of 8 entries in settings.json upstream. Installing this one merges just its entry into your config; the other 7 are separate, each on its own page.

Reuse

Borrowing it

Nothing to install: this file belongs to assafkip/kipi-system. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/assafkip/kipi-system/main/.claude/settings.json
Clone the repo
git clone --depth 1 https://github.com/assafkip/kipi-system

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for PostToolUse

README.md
[![agentmods](https://agentmods.dev/badge/hooks/assafkip/kipi-system/post-tool-use/github.svg)](https://agentmods.dev/hooks/assafkip/kipi-system/post-tool-use)
Your own site
<a href="https://agentmods.dev/hooks/assafkip/kipi-system/post-tool-use"><img src="https://agentmods.dev/badge/hooks/assafkip/kipi-system/post-tool-use/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for PostToolUse

Your own site · 80×15
<a href="https://agentmods.dev/hooks/assafkip/kipi-system/post-tool-use"><img src="https://agentmods.dev/badge/hooks/assafkip/kipi-system/post-tool-use.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade 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 26d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

  • Stop — 86% identical, 191 lines differ
.claude/settings.json · 218 lines

How it starts

The opening of the file, as written. The whole thing — 218 lines — stays where its author put it; the contents beside it link to each section on GitHub.

{
  "PostToolUse": [
    {
      "matcher": "Edit|Write|MultiEdit|Bash",
      "hooks": [
        {
          "type": "command",
          "command": "test -f \"$CLAUDE_PROJECT_DIR/q-system/.q-system/scripts/design-chain-gate.py\" && python3 -I \"$CLAUDE_PROJECT_DIR/q-system/.q-system/scripts/design-chain-gate.py\""
        }
      ]
    },
    {
      "matcher": "Skill",
      "hooks": [
        {
          "type": "command",
          "command": "test -f \"$CLAUDE_PROJECT_DIR/q-system/.q-system/scripts/design-engine-door.py\" && python3 -I \"$CLAUDE_PROJECT_DIR/q-system/.q-system/scripts/design-engine-door.py\""
        }
      ]
    },
    {
      "matcher": "Edit|Write|MultiEdit|Bash",
      "hooks": [
        {
          "type": "command",
          "command": "test -f \"$CLAUDE_PROJECT_DIR/q-system/.q-system/scripts/design-chain-gate.py\" && python3 \"$CLAUDE_PROJECT_DIR/q-system/.q-system/scripts/design-chain-gate.py\""
        }
      ]
    },
    {
      "matcher": "Skill",
      "hooks": [
        {
          "type": "command",
          "command": "test -f \"$CLAUDE_PROJECT_DIR/q-system/.q-system/scripts/design-engine-door.py\" && python3 \"$CLAUDE_PROJECT_DIR/q-system/.q-system/scripts/design-engine-door.py\""
        }
      ]
    },
    {
      "matcher": "Edit|Write|MultiEdit|Bash",
      "hooks": [
        {
          "type": "command",
          "command": "python3 \"$CLAUDE_PROJECT_DIR/q-system/.q-system/token-guard.py\"",
          "timeout": 5
        },
        {
          "type": "command",
          "command": "for R in q-system/.q-system/scripts/claude-path-write-guard.py q-system/.q-system/scripts/claude-integrity-tripwire.py; do [ -f \"$CLAUDE_PROJECT_DIR/$R\" ] && continue; git -C \"$CLAUDE_PROJECT_DIR\" checkout -- \"$R\" >/dev/null 2>&1; N=\"${KIPI_NOTIFY:-$CLAUDE_PROJECT_DIR/q-system/.q-system/scripts/slack-notify.sh}\"; if [ -f \"$CLAUDE_PROJECT_DIR/$R\" ]; then \"$N\" \"SECURITY: $R was deleted; restored from git\" >/dev/null 2>&1; el

Read the full file on GitHub · 218 lines

Same file

What else settings.json configures

This page is one entry in a file that holds 8. Installing the file brings all of them; each is measured and scanned on its own page.

Changes

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.

  1. 26d ago Changed · +10 lines 3dfca8875d1c
  2. 27d ago Changed · +5 lines 7d13e57bdacd
  3. 1mo ago Changed · +36 lines 3ad6a7ad7e27
  4. 1mo ago Changed · +5 lines 88e1e51c4249
  5. 1mo ago Changed · +5 lines d888e3eb9672
  6. 1mo ago Changed · +15 lines 6ee0954de191
  7. 1mo ago First seen · 142 lines scan A fad862a15b19

Subscribe to this mod's changes

PostToolUse is a hook published in the GitHub repository assafkip/kipi-system (125 stars, last pushed today), 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.