What is claude-code-prompt-recorder CLAUDE.md?

Project instructions for a Claude Code plugin that records each user prompt in a timestamped file.

Use it when developing or testing the prompt recorder, which stores prompts in .claude/prompt_log.txt without changing them.

It gives the coding agent the project’s architecture, commands, and conventions so changes fit the existing plugin.

How irmowan/claude-code-prompt-recorder configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to irmowan/claude-code-prompt-recorder. 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/irmowan/claude-code-prompt-recorder/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/irmowan/claude-code-prompt-recorder

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/irmowan/claude-code-prompt-recorder/claude-md/github.svg)](https://agentmods.dev/instructions/irmowan/claude-code-prompt-recorder/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/irmowan/claude-code-prompt-recorder/claude-md"><img src="https://agentmods.dev/badge/instructions/irmowan/claude-code-prompt-recorder/claude-md/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/irmowan/claude-code-prompt-recorder/claude-md"><img src="https://agentmods.dev/badge/instructions/irmowan/claude-code-prompt-recorder/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 381 This file is loaded in full into every session.

When invoked 381 The same file — it is already loaded in full.

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.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00381	$0.00381
Opus 5.5	$0.00152	$0.00152
Sonnet 5.5	$0.00076	$0.00076
Haiku 4.5	$0.00038	$0.00038

Measured 2mo ago against content hash ca68d02d87b8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

claude-code-prompt-recorder CLAUDE.md 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 2mo ago.

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.

CLAUDE.md · 46 lines

What it actually says

Claude Code Prompt Recorder

A UserPromptSubmit hook plugin that records every user prompt with a timestamp to .claude/prompt_log.txt in the project directory.

Core functionality:

Intercepts prompts via UserPromptSubmit hook
Records timestamp + prompt text to .claude/prompt_log.txt
Pass-through only — does not modify prompts
Skips empty prompts

Architecture

Hook Layer (hooks/hooks.json):

Registers UserPromptSubmit event with matcher: "*"
Invokes scripts/record-prompt.py via command hook
Timeout: 10 seconds

Script (scripts/record-prompt.py):

Reads JSON from stdin (user_prompt, cwd, session_id)
Appends [YYYY-MM-DD HH:MM:SS] <prompt> to <cwd>/.claude/prompt_log.txt
Outputs pass-through JSON with empty hookSpecificOutput

Directory structure:

scripts/ - Hook script
hooks/ - Hook configuration
tests/ - Test suite
.claude-plugin/ - Plugin metadata

Build Commands

Testing:

Run all tests: python -m pytest tests/
Run hook tests: python -m pytest tests/test_hook.py

Conventions

Hook output format:

JSON structure: {"hookSpecificOutput": {"hookEventName": "UserPromptSubmit"}}
No additionalContext — prompt is not modified
Exit code 0 for all success paths

Log format:

One line per prompt: [YYYY-MM-DD HH:MM:SS] <prompt text>
UTF-8 encoding, append mode
File: .claude/prompt_log.txt in working directory (directory created if missing)

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.

2mo ago First seen · 46 lines · 381 tokens per session scan A ca68d02d87b8

Subscribe to this mod's changes

claude-code-prompt-recorder CLAUDE.md is an instructions file published in the GitHub repository irmowan/claude-code-prompt-recorder (2 stars, last pushed 9mo ago), licensed MIT. It adds 381 tokens to every session, about $0.0015 per session on Opus 5.5. 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 2026-08-31.

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claude-code-prompt-recorder: Instructions file for Claude Code