decision-memo

decision-memo is a cursor rule for Cursor from MaxKmet/idea-validation-agents. It costs 0 tokens per session (68 once invoked), scanned A, original, MIT.

A writing rule for producing a short decision brief with a verdict, score, three strengths, three risks, and a next step. The input does not explain how the score is calculated.

In plain words
What is it for?
Use it to summarize an evaluated proposal, plan, or choice in a compact decision memo.
Why use it?
It gives decisions a consistent, human-readable structure so the main conclusion, trade-offs, and immediate action are easy to review.

Cursor rule for Cursor

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 rules/maxkmet/idea-validation-agents/decision-memo
Clone the repo
git clone --depth 1 https://github.com/MaxKmet/idea-validation-agents

Made for: Cursor.

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.

agentmods badge for decision-memo

README.md
[![agentmods](https://agentmods.dev/badge/rules/maxkmet/idea-validation-agents/decision-memo.svg)](https://agentmods.dev/rules/maxkmet/idea-validation-agents/decision-memo)
Your own site
<a href="https://agentmods.dev/rules/maxkmet/idea-validation-agents/decision-memo"><img src="https://agentmods.dev/badge/rules/maxkmet/idea-validation-agents/decision-memo.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 68 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.00068
Opus 5 $0.00000 $0.00034
Sonnet 5 $0.00000 $0.00014
Haiku 4.5 $0.00000 $0.00007

Measured 4d ago against content hash b20834997003, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

decision-memo 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 4d 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.

.cursor/rules/decision-memo.mdc · 7 lines

What it actually says

See skills/decision-memo/SKILL.md for full instructions and output schema.

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. 4d ago First seen · 7 lines · 68 tokens per session scan A b20834997003

Subscribe to this mod's changes

decision-memo is a cursor rule published in the GitHub repository MaxKmet/idea-validation-agents (448 stars, last pushed 2mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 68 tokens. 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 2026-08-30.