h-note

h-note is a skill for Claude Code from m0n0x41d/haft. It costs 93 tokens per session (1,003 once invoked), scanned A, original, no licence file.

A project-memory note for saving a fact, observation, caveat, or small reason for later use. It records the note only when explicitly requested or when a clear use for it exists.

In plain words
What is it for?
Use it to remember something, write a note for later, or save a fact that another task may need.
Why use it?
It keeps small pieces of context from being lost without treating them as binding decisions or instructions.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

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 skills/m0n0x41d/haft/h-note
Any agent
npx skills add m0n0x41d/haft --skill h-note
Clone the repo
git clone --depth 1 https://github.com/m0n0x41d/haft

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 h-note

README.md
[![agentmods](https://agentmods.dev/badge/skills/m0n0x41d/haft/h-note.svg)](https://agentmods.dev/skills/m0n0x41d/haft/h-note)
Your own site
<a href="https://agentmods.dev/skills/m0n0x41d/haft/h-note"><img src="https://agentmods.dev/badge/skills/m0n0x41d/haft/h-note.svg" alt="Measured on agentmods" height="20"></a>
Per session 93 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,003 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00093 $0.01003
Opus 5 $0.00046 $0.00502
Sonnet 5 $0.00019 $0.00201
Haiku 4.5 $0.00009 $0.00100

Measured 6d ago against content hash 8ca2e38db737, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

h-note 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 6d 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.

internal/cli/skill/h-note/SKILL.md · 92 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 6d ago First seen · 92 lines · 93 tokens per session scan A 8ca2e38db737

Subscribe to this mod's changes

h-note is a skill published in the GitHub repository m0n0x41d/haft (1,390 stars, last pushed 25d ago), with no licence file. It adds 93 tokens to every session and 1,003 once invoked, about $0.0005 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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