note

A tool for saving short tasks or reminders in a wiki vault, a folder used for personal notes and reference pages. Notes have a type and due time, and expire automatically after seven days.

In plain words
What is it for?
Use it to add, list, complete, or clear time-bound reminders and tasks, while updating the vault's note index and activity log.
Why use it?
It keeps temporary follow-ups separate from permanent documentation and surfaces active notes before they expire.

Skill for Claude CodeCodex

Part of the digital-brain plugin — 18 skills, 5 commands, 2 agents, 3 hooks shipped together

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/eliransu/digital-brain/note
Any agent
npx skills add eliransu/digital-brain --skill note
Clone the repo
git clone --depth 1 https://github.com/eliransu/digital-brain

Made for: Claude Code, Codex.

Or install digital-brain, the plugin that ships this one along with the rest of its 18 skills, 5 commands, 2 agents, 3 hooks.

Per session 154 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,508 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 $0.00154 $0.02508
Opus 5 $0.00077 $0.01254
Sonnet 5 $0.00031 $0.00502
Haiku 4.5 $0.00015 $0.00251

Measured 2d ago against content hash efebd6583bfe, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

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 2d 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.

skills/note/SKILL.md · 241 lines

How it starts

The opening of the file, as written. The whole thing — 241 lines — stays where its author put it; the contents beside it link to each section on GitHub.

note: Time-Bound Reminders & Tasks in the Vault

Notes are the lightweight, ephemeral cousin of full wiki pages. Use them for "ping Carol about the demo tomorrow", "review red-team PR by Friday", "buy a new charger". They live for 7 days, then auto-expire.

User identity: [email protected]. Vault root: ~/digital-brain/.


Vault Layout

  • Notes folder: wiki/notes/ (create if missing)
  • Notes index: wiki/notes/_index.md (create if missing — table of active notes only)
  • Wiki index: wiki/index.md — has a ## Meta section; add [[notes/_index|Active Notes]] there once
  • Log: wiki/log.md — append a note entry at the TOP after every add/done
  • Hot cache: wiki/hot.md — touch ONLY if the note's due is within 24h

Invocation Forms

Form Action
/note <free-text> add (default kind = reminder)
/note task <free-text> add with note_kind: task
/note reminder <free-text> add with note_kind: reminder (explicit)
/note list show active (non-expired, open) notes
/note done <id-or-slug> mark a note as done
/note clear manually sweep expired notes (auto on every invocation)

If $ARGUMENTS is empty, show the forms and ask which one.


Parsing /note [kind] <tail>

  1. Kind. If the first tail token (case-insensitive) is task or reminder, consume it and set note_kind. Otherwise default note_kind: reminder.
  2. Due time (by <when> / tomorrow / today HH:MM / <weekday> / in <N>h|d).
    • by 18:00 or by 6pm → today at that time (or tomorrow if already past)
    • tomorrow [HH:MM] → tomorrow at the given time or 09:00
    • next <weekday> → next occurrence of that weekday at 09:00
    • in 3h / in 2d → relative from now
    • If nothing specified: default due = today 18:00 (or tomorrow 09:00 if it's already past 18:00).
  3. Assignee (@<Person>). Default assignee: me. If @Name appears, resolve via wiki/entities/people/_index.md:
    • If a person with that first-name alias or full-name match exists → assignee: "<Full Name>" and wikilink [[Full Name]] in the body.
    • If not, apply the flywheel rule (see "Cross-Reference Rule" below): file the person first via the ppl skill with best-guess role, then link.
  4. Title. The remaining text after stripping kind / by … / @Name is the title. Trim to ≤ 80 chars; full text stays in the body.

Read the full file on GitHub · 241 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.

  1. 2d ago First seen · 241 lines · 154 tokens per session scan A efebd6583bfe

Subscribe to this mod's changes

note is a skill published in the GitHub repository eliransu/digital-brain (1 stars, last pushed 3mo ago), licensed MIT. It adds 154 tokens to every session and 2,508 once invoked, about $0.0008 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 2026-08-31.

Related

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brain-refresh

Refresh the qmd index for this vault — re-scans all collections for new/changed files and regenerates vector embeddings. Use after a bulk ingest session, after manual file edits, or whenever search feels stale. Trigger phrases: /brain-refresh, refresh the brain, refresh embeddings, re-embed wiki, update qmd index…

jessepinkman9900/claude-second-brain · 74 tokens

loredex-curate

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dkdottk/obsidian-bridge · 44 tokens

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