Loop Engineering

Loop Engineering is an AI Engineering skill for Claude Code, published by huytieu in COG-second-brain.

930 stars110 forkson huytieu/COG-second-brainAdded 2026/08/22+1% in starsRepository updated 2026/08/18

agent-loopagent-pluginsagent-skillsagenticai-agentsclaude-codeclosed-loopcursorgarry-tangbraingstackknowledge-managementloop-engineeringobsidianpeople-crmproductivitysecond-brainself-evolvingverification-harnessworker-agents

Install in seconds

Install Loop Engineering

Copy Loop Engineering into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/huytieu/COG-second-brain/tree/main/skills/loop-engineering ~/.claude/skills/loop-engineering

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/huytieu/COG-second-brain.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: skills/loop-engineering/SKILL.md in huytieu/COG-second-brain
Installs to: ~/.claude/skills/loop-engineering
Collection: One of 25 skills cataloged from this repository
Category: AI Engineering — 2451 skills

What Loop Engineering does

Loop Engineering defines shared patterns for iterative Claude Code skills, including verifiers, stop conditions, and context management. Use it when designing or debugging a loop that searches, retries, scans, or gates progress.

Loop Engineering is cataloged under AI Engineering on DirSkills. Loop Engineering comes from a repository tagged agent-loop, agent-plugins, agent-skills, agentic and ai-agents.

Documentation

README

Excerpt

COG Loop Engineering

TL;DR: Some COG skills are not one-shot prompts. They are loops: act, observe, verify, decide whether to continue. This skill is the shared vocabulary those skills use. The iron rule: trust deterministic checks, never the agent's own "looks done" self-report. Every loop must declare its verifier, its stopping conditions, and which pattern it follows.

This is a reference and design aid, not a content-generating workflow. Skills that loop (daily-brief, knowledge-consolidation, url-dump, weekly-checkin, and research/triage skills like auto-research and scout) link here instead of restating the rules. Invoke it directly when you are building or fixing an iterative skill.

Why loops

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Loop Engineering

What else does huytieu publish alongside Loop Engineering?
Loop Engineering is one of 25 skills that DirSkills catalogs from huytieu/COG-second-brain, the repository it ships in. Its siblings there include Auto Research, Braindump and Closed-Loop Execute. Each one is a separate skill with its own page in this directory, installs the same way Loop Engineering does, and is maintained by huytieu in that same repository. The rest of the collection is listed on the huytieu/COG-second-brain page.
How does Loop Engineering compare to other AI Engineering skills?
Loop Engineering ranks #1469 by stars among the 2451 AI Engineering skills in this catalog. The most-starred ones next to it are Architecture Decision Records, AI-First Engineering and Agentic OS. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Loop Engineering against them. Open each page to compare what they document and how they install.