What is UserPromptSubmit?

A Claude Code hook configuration that runs a local HTTP request whenever a user submits a prompt. A hook is an automated action triggered by an event.

Use it to connect Claude Code prompt submissions to the local service at port 9527 through its hooks endpoint.

It lets a local service receive prompt-submission events before the coding agent processes them. The configuration sends the event to a server on the same computer.

UserPromptSubmit — Hook by auxten

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/auxten/clickmem/user-prompt-submit

Clone the repo

git clone --depth 1 https://github.com/auxten/clickmem

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 B 2 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade B, and why

UserPromptSubmit scanned grade B with 2 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.

Sends data to an external URLmediumData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

"command": "curl -s -X POST http://127.0.0.1:9527/hooks/claude-code -d @-"

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

"command": "curl -s -X POST http://127.0.0.1:9527/hooks/claude-code -d @-"

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

PostToolUse — 88% identical, 2 lines differ

scripts/audit_install_helpers/fixtures/fake_home_template/.claude/settings.json · 12 lines

What it actually says

{
  "UserPromptSubmit": [
    {
      "hooks": [
        {
          "type": "command",
          "command": "curl -s -X POST http://127.0.0.1:9527/hooks/claude-code -d @-"
        }
      ]
    }
  ]
}

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 B 332f40a50d7a

Subscribe to this mod's changes

UserPromptSubmit is a hook published in the GitHub repository auxten/clickmem (58 stars, last pushed 2mo ago), licensed MIT. Its token cost is not measured: a hook is shell that never enters the context. A static security scan graded it B with 2 findings (sends data to an external url, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

UserPromptSubmit

Getting it into your agent

Grade B, and why

Sends data to an external URLmediumData exfiltration

Makes network callslowCapability

Copies of this mod

What it actually says

What this file has done since we first saw it

Other hooks, from other repositories

PostToolUse

SessionStart

SessionStart

PreToolUse

PreToolUse

SessionStart