catch-up

catch-up is a skill for Claude Code, Codex from letitbk/claude-academic-setup. It costs 31 tokens per session (997 once invoked), scanned A, original, MIT.

A project catch-up guide for returning to work after a break or interruption. It checks recent project activity and summarizes what happened during a suitable time range.

In plain words
What is it for?
Starting a work session, recovering after an interruption, reviewing recent accomplishments, and understanding the project's latest activity.
Why use it?
It helps an agent recover context without rereading the entire project history or losing track of recent work.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: model in frontmatter; reads .claude/ paths; mentions CLAUDE.md.

Good fit Starting a work session, recovering after an interruption, reviewing recent accomplishments, and understanding the project's latest activity.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/letitbk/claude-academic-setup/catch-up
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 letitbk/claude-academic-setup --skill catch-up
Clone the repo
git clone --depth 1 https://github.com/letitbk/claude-academic-setup

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.

agentmods badge for catch-up

README.md
[![agentmods](https://agentmods.dev/badge/skills/letitbk/claude-academic-setup/catch-up.svg)](https://agentmods.dev/skills/letitbk/claude-academic-setup/catch-up)
Your own site
<a href="https://agentmods.dev/skills/letitbk/claude-academic-setup/catch-up"><img src="https://agentmods.dev/badge/skills/letitbk/claude-academic-setup/catch-up.svg" alt="Measured on agentmods" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 997 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 $0.00031 $0.00997
Opus 5 $0.00015 $0.00498
Sonnet 5 $0.00006 $0.00199
Haiku 4.5 $0.00003 $0.00100

Measured 8d ago against content hash 997010230e8e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

catch-up 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 8d 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/catch-up/SKILL.md · 144 lines

How it starts

The opening of the file, as written. The whole thing — 144 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Catch Up

Overview

Comprehensive project catch-up that summarizes recent activity, accomplishments, and context. Auto-detects time since last activity and presents relevant information.

When to Use

  • Returning to a project after any time away
  • Starting a new work session
  • Recovering mid-session after interruption
  • User says "catch up" or similar

Process

Step 1: Detect Last Activity

Check Claude Code project history for last session timestamp:

# Get project hash for current directory
PROJECT_DIR=$(pwd)
PROJECT_HASH=$(echo -n "$PROJECT_DIR" | sed 's/\//-/g' | sed 's/^-//')
PROJECT_PATH="$HOME/.claude/projects/$PROJECT_HASH"

# Find most recent session file
ls -t "$PROJECT_PATH"/*.jsonl 2>/dev/null | head -1

Calculate time elapsed since last activity.

Step 2: Confirm Time Range

Use AskUserQuestion to confirm scenario based on detected time:

Time Elapsed Suggested Range Description
< 4 hours Last 4 hours Mid-session recovery
< 24 hours Last 24 hours Daily standup
< 7 days Last 7 days Returning within week
< 14 days Last 30 days Returning after 1-2 weeks
> 14 days All history Long absence

Present with: "You were last here [X time] ago. Show [suggested range]?"

Options:

  • Mid-session (4h)
  • Daily (24h)
  • This week (7d)
  • This month (30d)
  • Full history

Step 3: Gather Information (All Sources, Skip Unavailable)

3a. Project Context (for "What is this project?")

  1. Read CLAUDE.md or README if exists
  2. Analyze directory structure for project type
  3. Extract project understanding from chat history

3b. Recently Modified Files

# Find files modified in time range, exclude noise
find . -type f -mtime -<DAYS> \
  -not -path "./.git/*" \
  -not -path "./node_modules/*" \
  -not -path "./__pycache__/*" \
  -not -name ".DS_Store" \
  -not -name "*.pyc" \
  2>/dev/null | head -50

3c. Git Commits (if available)

Read the full file on GitHub · 144 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. 8d ago First seen · 144 lines · 31 tokens per session scan A 997010230e8e

Subscribe to this mod's changes

catch-up is a skill published in the GitHub repository letitbk/claude-academic-setup (43 stars, last pushed 2mo ago), licensed MIT. It adds 31 tokens to every session and 997 once invoked, about $0.0002 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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