Captain Diary
Daily handoff diary for the Captain. The Captain is restarted often (context-refresh, new work window, reboot) and otherwise loses the day's hard-won pacing lessons — repeating the same mistakes (e.g. 3 Scouts at once → an unbrakable spike → a 5h coast to repay the debt). Read the PREVIOUS day's notes at startup (handoff), and APPEND a one-line note whenever something significant happens during the day (a scaling decision, a spike, a kill, a lesson). One append-only file per day.
Security AStatic scan found no risk patternsHow grading works ›
From the source SKILL.md
Un file per giorno in $JHT_HOME/logs/captain-diary-YYYY-MM-DD.md, append-only. Serve a non ripartire da zero ogni riavvio: le lezioni di pacing di oggi passano al Capitano di domani.
What this skill does
Captain Diary is a community-contributed Claude Code skill in the education-learning sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/captain-diary/ and loads when your prompt matches the skill's trigger.
Who uses this skill
The Captain Diary Claude Code skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 150,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
How to install
Free
Manual install (2 steps)
mkdir -p ~/.claude/skills/captain-diary
curl -L https://claudskills.com/skills/captain-diary/SKILL.md \
-o ~/.claude/skills/captain-diary/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/captain-diary/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/captain-diary/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\captain-diary\SKILL.md on Windows. See the full install guide for step-by-step instructions.
Telegram
📱 Install from your phone or desktop Telegram
Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →
Pro
One-click install via the desktop app
The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.
Pro
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
Frequently asked questions
How do I install the Captain Diary Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy
SKILL.md from the source repository to
~/.claude/skills/captain-diary/SKILL.md and restart Claude Code. Both flows are detailed at
claudskills.com/install/.
What does the Captain Diary skill do?
Daily handoff diary for the Captain. The Captain is restarted often (context-refresh, new work window, reboot) and otherwise loses the day's hard-won pacing lessons — repeating the same mistakes (e.g. 3 Scouts at once → an unbrakable spike → a 5h coast to repay the debt). Read the PREVIOUS day's notes at startup (handoff), and APPEND a one-line note whenever something significant happens during the day (a scaling decision, a spike, a kill, a lesson). One append-only file per day.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Captain Diary skill?
Use Captain Diary when your Claude Code task falls under the General category — specifically in the education learning area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Captain Diary" or describe the task and let Claude pick). Browse related skills at
/category/general/.
What is a Claude Code skill and how does the Captain Diary skill fit in?
A Claude Code skill is a
SKILL.md file that lives under
~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Captain Diary is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the General category. Learn more at
/learn/what-is-a-claude-skill/.
Attribution & license
Cite this skill
If you reference this skill in a blog post, paper, or documentation, you can cite it as:
APA
leopu00. (2026). Captain Diary [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/captain-diary/
BibTeX
@misc{captain-diary-2026,
author = {leopu00},
title = {Captain Diary [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/captain-diary/}
}Embed this skill
Promote, attribute, or link this skill from your own README, blog post, or documentation. All three snippets are free to use — no sign-up, no API key. More distribution surfaces →
Badge
[](https://claudskills.com/skills/captain-diary/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)
<script>
<script src="https://claudskills.com/embed/captain-diary.js" async></script>
<iframe>
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Security scan
Grade A · scanned 2026-07-12 — free static scan against the OWASP Agentic Skills Top 10.
No risk patterns were found in any of the ten OWASP-aligned categories. How grading works ›
- ✓ Prompt injection
- ✓ Data exfiltration
- ✓ Supply chain
- ✓ Reverse shell
- ✓ Credentials
- ✓ Execution
- ✓ Filesystem
- ✓ Persistence
- ✓ Obfuscation
- ✓ Network
Show this grade on your repo (click to copy):
[](https://claudskills.com/skills/captain-diary/#security)
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