Task Observer
Watches your Claude sessions and proposes better and new skills from your corrections and patterns.
Who it is for
Teams and individuals who already use several of their own skills in Claude Code or Cowork and want to improve them from day-to-day work
Use cases
- Corrections you keep giving Claude end up as improvement proposals for the right skill
- Recurring manual steps get flagged as candidates for new skills
- Regular review sessions in which you check and apply open proposals
Say this to activate the skill
"One Skill to Rule Them All""Any observations logged?""Show me the open skill observations" Install
npx skills add rebelytics/one-skill-to-rule-them-all --skill task-observer
The command installs the original version from the author's repository (Vercel's skills CLI, needs Node.js); add -g for all projects. No terminal? Upload the .skill bundle from the latest release in the settings of the Claude apps. Then activate it: the activation instruction from references/environments.md goes into your CLAUDE.md, otherwise the skill starts too rarely. Need help with setup? How to install skills →
Reviewed by us
- The scripts make no network calls.
- The skill itself goes online in certain cases, among them feedback for a repository and reviews that compare skills with their own repository against the latest version. That also happens in scheduled reviews.
- New versions of your skills are created as copies. They only take effect once you install them.
Good to know
- Task Observer permanently stores observations containing content from your sessions in the skill-observations folder; in Claude Code it is meant to live under ~/.claude/. Check where the folder sits and who can access it, especially with client data.
- Open observations and its own principles flow into every session without approval, and in reviews the agent runs commands quoted in observations. Anyone who can write to the folder therefore co-steers later sessions. Keep it writable only for you.
- With the recommended activation, the skill loads into every session; the SKILL.md alone is about 45 KB. That costs context.
The command above always installs the current version. We have not reviewed later versions.
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About this skill
Task Observer comes from Eoghan Henn and is an open-source project maintained by its author and community.
Author: Eoghan Henn / rebelytics.com. Source: github.com/rebelytics/one-skill-to-rule-them-all. Licence: CC BY 4.0.
Curated by Collective Brain, an AI and automation digital agency from Hamburg, together with WhiteFox Automations. More vetted skills in the skills catalog.
Working in Germany, Austria or Switzerland? We help teams roll out Claude, in English or German.
Want this skill tailored to your team?
Task Observer is a strong starting point. A skill gets really powerful once it knows your workflows, templates and tone of voice. We build custom skills for teams, from analysis to rollout, and connect them to our work in AI consulting.
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