What is UserPromptSubmit?

A hook that runs a Node.js script when a user submits a prompt, before the coding agent receives it. The hook is configured to run the plugin’s cc-hook.js file.

It is for triggering cc-hook.js on each submitted prompt in installations that use the TIMAN-group/PlugMem plugin.

It allows prompt-submission processing to happen automatically at a fixed point in the agent workflow. The provided description does not specify what the script does with the prompt.

UserPromptSubmit — Hook by TIMAN-group

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 hooks/timan-group/plugmem/user-prompt-submit

Clone the repo

git clone --depth 1 https://github.com/TIMAN-group/PlugMem

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 59% copy Near-identical to another mod in the catalogue.

Security

Grade A, and why

UserPromptSubmit 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 2d 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

This is a copy

59% identical to SessionStart — 7 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.

plugmem-coding-claude-code/hooks/hooks.json · 12 lines

What it actually says

{
  "UserPromptSubmit": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "node ${CLAUDE_PLUGIN_ROOT}/dist/bin/cc-hook.js"
        }
      ]
    }
  ]
}

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.

2d ago First seen · 12 lines scan A 6cffea2bfb53

Subscribe to this mod's changes

UserPromptSubmit is a hook published in the GitHub repository TIMAN-group/PlugMem (295 stars, last pushed 1mo ago), licensed Apache-2.0. 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. It is 59% identical to SessionStart, differing in 7 lines, and is treated as a copy.

agent-memory llm-agent

UserPromptSubmit

Getting it into your agent

Grade A, and why

Nothing flagged

This is a copy

What it actually says

What this file has done since we first saw it

Other hooks, from other repositories

UserPromptSubmit

SessionStart

Stop

PreCompact

SessionStart

SubagentStop