day-summary

day-summary is a skill for Claude Code, Codex from mpazik/Binder. It costs 19 tokens per session (1,493 once invoked), scanned B, original, MIT.

An evening routine for reviewing a day's journal entry, discussing what happened, scoring the day, and writing a closing summary. It can also use the week's goals and recent-day context.

In plain words
What is it for?
Reading the target day's journal, comparing it with weekly goals and recent days, discussing the day's outcomes, assigning scores, and recording a final summary.
Why use it?
It turns scattered daily notes and background activity into a structured reflection tied to plans, achievements, mood, sleep, food, work, and fitness.

Skill for Claude CodeCodex

Part of the journal plugin — 8 skills, 1 agent 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/mpazik/binder/day-summary
Any agent
npx skills add mpazik/Binder --skill day-summary
Clone the repo
git clone --depth 1 https://github.com/mpazik/Binder

Made for: Claude Code, Codex.

Or install journal, the plugin that ships this one along with the rest of its 8 skills, 1 agent.

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 day-summary

README.md
[![agentmods](https://agentmods.dev/badge/skills/mpazik/binder/day-summary.svg)](https://agentmods.dev/skills/mpazik/binder/day-summary)
Your own site
<a href="https://agentmods.dev/skills/mpazik/binder/day-summary"><img src="https://agentmods.dev/badge/skills/mpazik/binder/day-summary.svg" alt="Measured on agentmods" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,493 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. 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 $0.00019 $0.01493
Opus 5 $0.00010 $0.00746
Sonnet 5 $0.00004 $0.00299
Haiku 4.5 $0.00002 $0.00149

Measured 4d ago against content hash 0118ac6478ab, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

day-summary scanned grade B with 1 finding 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 4d 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.

Strips warnings and disclaimersmediumAnti-refusal

Omitting safety caveats hides risk from the user and is a common jailbreak preamble.

- Don't moralize about procrastination — track patterns, don't judge them
examples/journal/skills/day-summary/SKILL.md · 145 lines

How it starts

The opening of the file, as written. The whole thing — 145 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Read the day's journal entry and close it out in two rounds: first discuss, then score and write.

Context

Offset controls direction: default (0) = today, negative = past day (e.g. -1 for yesterday).

Target day = the day being summarized (offset $0). Always read its date from the entry below — never assume it's "today."

Target day entry (we are summarizing this — created if missing): !O=$0; binder read $(bun scripts/journal.ts d ${O:-0} --key) --format yaml Week context: !O=$0; binder read $(bun scripts/journal.ts w ${O:-0} --key) -f "weekPeriod,goal,plan,achievements" --format yaml Extra context: Calendar events, activity dump, and health data are injected automatically by the data-sync extension. Use them if present. Activity dump is background context — not every commit or session is an achievement. Recent days: !binder search type=JournalDay "dayPeriod>=$(date -v-7d +%Y-%m-%d)" -f "dayPeriod,plan,achievements,summary,moodScore,sleepScore,foodScore,workScore,fitnessScore,totalScore" --format yaml


First message — Reflect on the day

After reading the entry, deliver one message. Use plain text throughout — no blockquotes.

1. Day summary

Brief bullet points of what happened based on the log and plan. Cover what got done, what didn't, and anything notable.

Note: log entries may be added retroactively — don't infer energy flow or timing patterns from timestamps alone. Ask if the timeline is unclear.

2. Reflection

Offer a short inferred read on the day — energy, momentum, patterns vs recent days. Honest, not preachy.

3. What's missing?

Numbered list. Call out gaps: things the log doesn't cover, plan items with no mention, anything that feels incomplete. Gaps may mean "not logged yet" rather than "didn't happen" — ask "anything not captured yet?" rather than assuming omission.

4. How was it?

Ask how the day felt overall. One or two targeted questions if something specific stands out from the log. Not open-ended therapy — you already know most of the day.

Read the full file on GitHub · 145 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. 4d ago First seen · 145 lines · 19 tokens per session scan B 0118ac6478ab

Subscribe to this mod's changes

day-summary is a skill published in the GitHub repository mpazik/Binder (40 stars, last pushed 12d ago), licensed MIT. It adds 19 tokens to every session and 1,493 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (strips warnings and disclaimers). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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