A command for keeping a dated record of investment decisions and the reasons behind them.

Use it to write decisions, review recent entries by date, ticker, or tag, and archive older journal files into monthly summaries.

It helps you review what you believed when you bought, sold, passed, or waited, reducing hindsight bias—the tendency to think a past outcome was predictable.

How haiiibin/claude-multi-agent-investing configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to haiiibin/claude-multi-agent-investing. 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/haiiibin/claude-multi-agent-investing/main/.claude/commands/journal.md

Clone the repo

git clone --depth 1 https://github.com/haiiibin/claude-multi-agent-investing

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/commands/haiiibin/claude-multi-agent-investing/journal/github.svg)](https://agentmods.dev/commands/haiiibin/claude-multi-agent-investing/journal)

Your own site

<a href="https://agentmods.dev/commands/haiiibin/claude-multi-agent-investing/journal"><img src="https://agentmods.dev/badge/commands/haiiibin/claude-multi-agent-investing/journal/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/commands/haiiibin/claude-multi-agent-investing/journal"><img src="https://agentmods.dev/badge/commands/haiiibin/claude-multi-agent-investing/journal.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 56 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 1,639 The whole file, excluding the scripts and references it only reads on demand.

Security scan B 1 finding. 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	$0.00056	$0.01639
Opus 5.5	$0.00022	$0.00656
Sonnet 5.5	$0.00011	$0.00328
Haiku 4.5	$0.00006	$0.00164

Measured 2mo ago against content hash cc83d647ec6a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

journal scanned grade B with 1 finding 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.

Strips warnings and disclaimersmediumAnti-refusal

Omitting safety caveats hides risk from the user and is a common jailbreak preamble.

- **Don't moralize** -- capture what the user thought, not what they "should have" thought. Future-you judging is the whole point; present-you shouldn't preempt.

.claude/commands/journal.md · 132 lines

How it starts

The opening of the file, as written. The whole thing — 132 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/journal -- Decision Journal

Persistent record of investment decisions + the reasoning at the time. Fights hindsight bias and gives /research + /allocate-cash historical context in future sessions.

Usage

Write mode (default) -- capture a decision in $ARGUMENTS:

/journal 今天没买 BRK.B，觉得 $468 是 52w 低但 Buffett 最近卖 AAPL 给信号谨慎。等 Q1 filing 看持仓变化
/journal passed on NVDA after /research said "conditional no" -- waiting for Q1 FY27 print May 20
/journal trimmed MSFT broker-a-taxable 10 shares at $420, locked gain; keeps position under 15% portfolio cap

Review mode -- review [window] to read recent entries:

/journal review                      # last 30 days
/journal review 90                   # last 90 days
/journal review NVDA                 # filter by ticker
/journal review thesis-change        # filter by tag

Archive mode -- archive compresses stale memory/mid_term/*.md into monthly summaries:

/journal archive                     # default: files > 180 days old
/journal archive 90                  # files > 90 days old

What it does:

Glob memory/mid_term/*.md, filter by date encoded in filename (e.g. 2025-10-*).
Group by year-month.
For each month: read all files, extract key facts (decisions made, conclusions, tickers, outcomes), write one condensed summary to memory/archive/{YYYY-MM}-summary.md.
Move originals to memory/archive/raw/{YYYY-MM}/. Never delete.
Future command lookups read memory/archive/*-summary.md first (cheap), fall through to raw on demand.

Run monthly-ish. Without it, memory/mid_term/ grows unbounded and every command's Glob slows down.

Phase 1 -- Parse (write mode)

Extract from $ARGUMENTS:

Decision type: bought / sold / trimmed / added / passed / waited / watched / thesis-change
Ticker(s) referenced
Key reasoning (1-3 sentences)
Trigger condition if they waited (e.g., "if NVDA < $170")
Expected check-back date if they're waiting

Read the full file on GitHub · 132 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.

2mo ago First seen · 132 lines · 56 tokens per session scan B cc83d647ec6a

Subscribe to this mod's changes

journal is a command published in the GitHub repository haiiibin/claude-multi-agent-investing (2 stars, last pushed 1mo ago), licensed MIT. It adds 56 tokens to every session and 1,639 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it B with 1 finding (strips warnings and disclaimers). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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claude-multi-agent-investing: Command for Claude Code