ClaudSkills / Science & Research / science-misc

Agent Activity Logger

Q: What is a Claude Code skill and how does the Agent Activity Logger 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. Agent Activity Logger is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Science & Research category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Science & Research · Sub-category: science-misc · Last updated: 2026-05-21

ai:agent

Background reference skill defining the structured JSON log format written to logs/copilot/agent-activity.log by each phase agent on completion. Auto-loaded by Discuss, Research, Planner, TDD Implementer, and Verify agents when they append their completion log entry. Defines all required fields (timestamp, issueId, phase, agent, developer, status, summary, decisions, outputFile, nextPhase) and optional phase-specific fields (filesChanged for execute, testResults for verify). Also provides jq query examples for filtering logs by Issue, date, or status. Loads when log format, activity log, or agent logging is mentioned.

From the source SKILL.md

Every phase agent appends one JSON entry to logs/copilot/agent-activity.log when it completes its work. This creates a full audit trail of every Issue's lifecycle.

What this skill does

Agent Activity Logger is a community-contributed Claude Code skill in the science-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/agent-activity-logger/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Agent Activity Logger Claude Code skill is built for researchers, data scientists, academics, and analysts working with complex data and scientific literature. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 116,000+ 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/agent-activity-logger
curl -L https://claudskills.com/skills/agent-activity-logger/SKILL.md \
  -o ~/.claude/skills/agent-activity-logger/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/agent-activity-logger/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/agent-activity-logger/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\agent-activity-logger\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 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.

See pricing → Download desktop app

Frequently asked questions

How do I install the Agent Activity Logger Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/agent-activity-logger/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Agent Activity Logger skill do?

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 Agent Activity Logger skill?

Use Agent Activity Logger when your Claude Code task falls under the Science & Research category — specifically in the science misc 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 Agent Activity Logger" or describe the task and let Claude pick). Browse related skills at /category/science/.

What is a Claude Code skill and how does the Agent Activity Logger 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. Agent Activity Logger is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Science & Research category. Learn more at /learn/what-is-a-claude-skill/.

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

ClaudSkills. (2026). Agent Activity Logger [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/agent-activity-logger/

BibTeX

@misc{agent-activity-logger-2026,
  author    = {ClaudSkills},
  title     = {Agent Activity Logger [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/agent-activity-logger/}
}

Embed this skill

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Badge

[![ClaudSkills](https://claudskills.com/badge/agent-activity-logger.svg)](https://claudskills.com/skills/agent-activity-logger/?utm_source=badge&utm_medium=readme&utm_campaign=skill_badge)

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Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills. · What's New · Install guide · About · llms.txt

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