memstack

A settings file that defines five agent hook events, which are commands run before or after certain actions or when a session starts or stops. The configured checks cover tool use, Git commits, and Git pushes.

In plain words
What is it for?
Use it to run pre-action notifications, check commits for secrets, and apply checks around Git commits and pushes.
Why use it?
It adds automatic notifications and checks around actions that can affect files or shared code.

Settings file for Claude Code

Install

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.

agentmods
npx agentmods add settings/cwinvestments/memstack/settings
Clone the repo
git clone --depth 1 https://github.com/cwinvestments/memstack

Made for: Claude Code.

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. Scan, not verified.
Origin 81% copy Near-identical to another mod in the catalogue.
Security

Grade A, and why

memstack 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 body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

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

This is a copy

81% identical to Ghost — 88 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/settings.json · 101 lines

How it starts

The opening of the file, as written. The whole thing — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.

{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "Write|Edit|MultiEdit|Bash",
        "hooks": [
          {
            "type": "command",
            "command": "bash ${CLAUDE_PROJECT_DIR}/.claude/hooks/pre-tool-notify.sh",
            "timeout": 10000
          }
        ]
      },
      {
        "matcher": "Bash",
        "hooks": [
          {
            "type": "command",
            "command": "bash \"${CLAUDE_PROJECT_DIR}/.claude/hooks/gate-on-command.sh\" --critical \"git push\" pre-push.sh",
            "timeout": 60000
          }
        ]
      },
      {
        "matcher": "Bash",
        "hooks": [
          {
            "type": "command",
            "command": "bash \"${CLAUDE_PROJECT_DIR}/.claude/hooks/gate-on-command.sh\" --critical \"git commit\" pre-commit-secrets.sh",
            "timeout": 30000
          }
        ]
      }
    ],
    "PostToolUse": [
      {
        "matcher": "Bash",
        "hooks": [
          {
            "type": "command",
            "command": "bash \"${CLAUDE_PROJECT_DIR}/.claude/hooks/gate-on-command.sh\" \"git commit\" post-commit.sh",
            "timeout": 10000
          }
        ]
      },
      {
        "matcher": "Write|Edit|MultiEdit|Bash",
        "hooks": [
          {
            "type": "command",
            "command": "bash ${CLAUDE_PROJECT_DIR}/.claude/hooks/post-tool-monitor.sh",
            "timeout": 10000
          }
        ]
      }
    ],
    "SessionStart": [
      {
        "hooks": [
          {
            "type": "command",
            "command": "bash ${CLAUDE_PROJECT_DIR}/.claude/hooks/session-start.sh",
            "timeout": 10000
          }
        ]
      },
      {
        "hooks": [
          {
            "type": "command",
            "command": "bash ${CLAUDE_PROJECT_DIR}/.claude/hooks/session-context-load.sh",
            "timeout": 15000
          }
        ]
      }
    ],
    "Stop": [
      {
        "hooks": [
          {
            "type": "command",

Read the full file on GitHub · 101 lines

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. yesterday First seen · 101 lines scan A 0ecc54914472

Subscribe to this mod's changes

memstack is a settings file published in the GitHub repository cwinvestments/memstack (417 stars, last pushed 5d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. It is 81% identical to Ghost, differing in 88 lines, and is treated as a copy.