What is daily-briefing?

A guide for producing a daily briefing from Gmail and Google Calendar. It organizes the morning’s schedule and email into items needing action, worth reading, or safe to postpone.

Use it to prepare a morning summary with today’s meetings, actionable emails, reading suggestions, deferred messages, and quick activity statistics.

It reduces the time spent sorting through the inbox and calendar separately. It gives a quick view of commitments and messages that may require attention.

daily-briefing — Skill for Claude Code and Codex by tallclub/matimo

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.

Any agent

npx skills add tallclub/matimo --skill daily-briefing

Clone the repo

git clone --depth 1 https://github.com/tallclub/matimo

Made for: Claude Code, Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/tallclub/matimo/daily-briefing/github.svg)](https://agentmods.dev/skills/tallclub/matimo/daily-briefing)

Your own site

<a href="https://agentmods.dev/skills/tallclub/matimo/daily-briefing"><img src="https://agentmods.dev/badge/skills/tallclub/matimo/daily-briefing/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/tallclub/matimo/daily-briefing"><img src="https://agentmods.dev/badge/skills/tallclub/matimo/daily-briefing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 18 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 87 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.

Model	Per session	Once invoked
Fable 5.1	$0.00018	$0.00087
Opus 5.5	$0.00007	$0.00035
Sonnet 5.5	$0.00004	$0.00017
Haiku 4.5	$0.00002	$0.00009

Measured 2mo ago against content hash 7e074cdd5447, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

daily-briefing 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 2mo 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.

typescript/examples/mcp/matimo-tools/skills/daily-briefing/SKILL.md · 17 lines

What it actually says