idea-validation-agents: Skill for Claude Code

.claude/skills/decision-memo/SKILL.md

decision-memo is a skill for Claude Code from MaxKmet/idea-validation-agents. It costs 44 tokens per session (80 once invoked), scanned A, original, MIT.

A format for writing a decision brief that records a verdict, experiment, pre-mortem, next actions, and conditions for stopping. A pre-mortem is a check of how a plan could fail before it begins.

In plain words
What is it for?
Use it for structured decision-making when you need to compare an approach, test it, examine failure risks, and define when to continue or stop.
Why use it?
It helps turn an uncertain choice into a documented decision with tests, risks, and clear follow-up actions. The input does not provide further details about its exact workflow or capabilities.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is MaxKmet/idea-validation-agents's own configuration. It tells Claude Code how to work on idea-validation-agents itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything idea-validation-agents configures →

Reuse

Borrowing it

Nothing to install: this file belongs to MaxKmet/idea-validation-agents. 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/MaxKmet/idea-validation-agents/main/.claude/skills/decision-memo/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/MaxKmet/idea-validation-agents

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.

agentmods badge for decision-memo

README.md
[![agentmods](https://agentmods.dev/badge/skills/maxkmet/idea-validation-agents/decision-memo.svg)](https://agentmods.dev/skills/maxkmet/idea-validation-agents/decision-memo)
Your own site
<a href="https://agentmods.dev/skills/maxkmet/idea-validation-agents/decision-memo"><img src="https://agentmods.dev/badge/skills/maxkmet/idea-validation-agents/decision-memo.svg" alt="Measured on agentmods" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 80 The whole file, excluding the scripts and references it only reads on demand.
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00044 $0.00080
Opus 5 $0.00022 $0.00040
Sonnet 5 $0.00009 $0.00016
Haiku 4.5 $0.00004 $0.00008

Measured 8d ago against content hash a0d4d8a85d17, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, 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 8d 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/skills/decision-memo/SKILL.md · 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. 8d ago First seen · 7 lines · 44 tokens per session scan A a0d4d8a85d17

Subscribe to this mod's changes

decision-memo is a skill published in the GitHub repository MaxKmet/idea-validation-agents (449 stars, last pushed 2mo ago), licensed MIT. It adds 44 tokens to every session and 80 once invoked, about $0.0002 per session on Opus 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 2026-08-30.

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