brief

brief is a command for Claude Code from loganhc-09/claude-chief-of-staff. It costs 22 tokens per session (435 once invoked), scanned A, original, MIT.

A personal morning or evening summary built from tasks, calendar events, messages, email, and saved notes.

In plain words
What is it for?
Use it to prepare for the day, review what was completed, identify slipping commitments, and plan for tomorrow.
Why use it?
It brings scattered commitments into one view and highlights what needs attention, what is overdue, and what needs preparation.

Command for Claude Code

Written for Claude Code: argument-hint in frontmatter.

Part of the chief-of-staff plugin — 1 skill, 3 commands shipped together

Good fit Use it to prepare for the day, review what was completed, identify slipping commitments, and plan for tomorrow.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/loganhc-09/claude-chief-of-staff/brief
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.

Clone the repo
git clone --depth 1 https://github.com/loganhc-09/claude-chief-of-staff

Made for: Claude Code.

Or install chief-of-staff, the plugin that ships this one along with the rest of its 1 skill, 3 commands.

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 brief

README.md
[![agentmods](https://agentmods.dev/badge/commands/loganhc-09/claude-chief-of-staff/brief/github.svg)](https://agentmods.dev/commands/loganhc-09/claude-chief-of-staff/brief)
Your own site
<a href="https://agentmods.dev/commands/loganhc-09/claude-chief-of-staff/brief"><img src="https://agentmods.dev/badge/commands/loganhc-09/claude-chief-of-staff/brief/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.

agentmods 80×15 button for brief

Your own site · 80×15
<a href="https://agentmods.dev/commands/loganhc-09/claude-chief-of-staff/brief"><img src="https://agentmods.dev/badge/commands/loganhc-09/claude-chief-of-staff/brief.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 22 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 435 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 $0.00022 $0.00435
Opus 5 $0.00011 $0.00217
Sonnet 5 $0.00004 $0.00087
Haiku 4.5 $0.00002 $0.00044

Measured 13d ago against content hash 9002523f6d1a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

brief 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 13d 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.

plugins/chief-of-staff/commands/brief.md · 31 lines

What it actually says

Produce the user's brief. If $ARGUMENTS contains "evening", make it an end-of-day version (what closed today, what's still open, what tomorrow needs) instead of a morning one.

Before you write

  1. Read the user's CHIEF_OF_STAFF.md. If it doesn't exist, tell them to run /chief-of-staff:setup first, then offer a lightweight brief from whatever you can see.
  2. Read their MEMORY.md index and open any memory files relevant to what's coming up today.
  3. Read their tasks.md (or wherever their open loops live).
  4. Check whatever live sources are connected — calendar, email, messages. Pull actual state; don't guess.

Write the brief

Follow the shape in their daily-brief.md template. Default structure:

  • Lead — one thing worth their attention up top. A pattern you noticed, a heads-up, or a genuine win to carry in. Not a task.
  • Today — real calendar items with times, plus a one-line "here's what you'll want to have thought about" for anything that needs it.
  • Overdue / slipping — aging commitments and follow-ups. VERIFY each is actually still open (check sent mail / notes / calendar) before listing it. A false "you forgot this" costs trust.
  • Prep — anything today worth five minutes of prep, with the prep already started (a draft, the relevant thread pulled up).
  • One nudge — a single suggestion, not a to-do list.

Rules

  • Short enough to read in under a minute. Lead with something interesting, not a calendar dump.
  • Celebrate wins specifically before pivoting to what's next.
  • One recommendation in the nudge, not a menu.
  • Everything you assert is verified against a real source. Flag anything you couldn't confirm as "unverified."
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. 13d ago First seen · 31 lines · 22 tokens per session scan A 9002523f6d1a

Subscribe to this mod's changes

brief is a command published in the GitHub repository loganhc-09/claude-chief-of-staff (75 stars, last pushed 1mo ago), licensed MIT. It adds 22 tokens to every session and 435 once invoked, about $0.0001 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.