--- title: "awesome-claude-skills vs harness-books" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/composiohq-awesome-claude-skills-vs-wquguru-harness-books" tools: ["composiohq-awesome-claude-skills", "wquguru-harness-books"] --- # awesome-claude-skills vs harness-books *GraphCanon updated Aug 19, 2026* ## Verdict Pick awesome-claude-skills if awesome-claude-skills is a curated list that provides resources and tools for customizing workflows using Claude AI; pick harness-books if harness-books provides in-depth knowledge on Claude Code and Codex's design philosophies through two books focused on constraints, query loops, and more. [awesome-claude-skills](https://github.com/ComposioHQ/awesome-claude-skills) reports 73k GitHub stars, 8.3k forks, and 1.3k open issues, last pushed Aug 10, 2026. [harness-books](http://harness-books.agentway.dev/) has 2.7k stars, 320 forks, and 5 open issues, last pushed Apr 19, 2026. Figures are from public GitHub metadata via [awesome-claude-skills's repository](https://github.com/ComposioHQ/awesome-claude-skills) and [harness-books's repository](https://github.com/wquguru/harness-books). | | [awesome-claude-skills](/tools/composiohq-awesome-claude-skills.md) | [harness-books](/tools/wquguru-harness-books.md) | | --- | --- | --- | | Tagline | A curated list of awesome Claude Skills for customizing AI workflows | Two books on harness engineering for Claude Code and Codex detailing design philosophies such as constraints and query loops. | | Stars | 72,787 | 2,702 | | Forks | 8,327 | 320 | | Open issues | 1,292 | 5 | | Language | Python | Python | | Adopt for | awesome-claude-skills is a curated list that provides resources and tools for customizing workflows using Claude AI. | harness-books provides in-depth knowledge on Claude Code and Codex's design philosophies through two books focused on constraints, query loops, and more. | | Persona | - | - | | Runtime | - | - | | License | - | - | | Categories | AI Agents, Developer Tools | AI Agents, Developer Tools | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [awesome-claude-skills](/tools/composiohq-awesome-claude-skills.md) | [harness-books](/tools/wquguru-harness-books.md) | | --- | --- | --- | | Maintenance | Active (82%) | Slowing (36%) | | Days since push | 8d | 100d | | Open issues (now) | 1.3k | 5 | | Stars delta | +4.7k (30d) | Unknown | | Open issues delta | +238 (30d) | Unknown | | Owner type | Organization | User | | Full report | [trust report](/tools/composiohq-awesome-claude-skills/trust.md) | [trust report](/tools/wquguru-harness-books/trust.md) | ## Decision facts: awesome-claude-skills - **Pricing:** unknown - The repository's license is under Apache 2.0 for the overall content, but individual skills may have varying licensing terms which should be checked individually within their respective folders. - **Adopt for:** awesome-claude-skills is a curated list that provides resources and tools for customizing workflows using Claude AI. ## Decision facts: harness-books - **Adopt for:** harness-books provides in-depth knowledge on Claude Code and Codex's design philosophies through two books focused on constraints, query loops, and more. ## Choose when ### Choose awesome-claude-skills if… - Pricing: The repository's license is under Apache 2.0 for the overall content, but individual skills may have varying licensing terms which should be checked individually within their respective folders.. - Tags unique to awesome-claude-skills: agent-skills, automation, claude-code, composio. - When you are looking to customize and extend the capabilities of Claude AI through various skills and plugins. ### Choose harness-books if… - Tags unique to harness-books: agentic-ai, ai-agents, context-engineering, prompt-engineering. - When needing detailed insights into the internal mechanisms of AI agents like Claude Code and Codex for informed development efforts. - Leaner open-issue backlog (5). ## When NOT to use awesome-claude-skills - Avoid using if your primary focus is on general-purpose automation that doesn't require integration with Claude AI or its ecosystem. - Not recommended if specific automation tasks do not benefit from customization through the provided Claude Skills, or you prefer tools that operate independently without dependency on a particular AI. ## When NOT to use harness-books - If seeking generic AI agent design guidelines that do not focus on the specifics of Claude Code or Codex implementations. - When the aim is to work with other types of AI agents or frameworks unrelated to the technologies detailed in harness-books. ## Common questions ### What is the difference between awesome-claude-skills and harness-books? awesome-claude-skills: A curated list of awesome Claude Skills for customizing AI workflows. harness-books: Two books on harness engineering for Claude Code and Codex detailing design philosophies such as constraints and query loops.. See the comparison table for live GitHub stats and shared categories. ### When should I choose awesome-claude-skills over harness-books? Choose awesome-claude-skills over harness-books when Pricing: The repository's license is under Apache 2.0 for the overall content, but individual skills may have varying licensing terms which should be checked individually within their respective folders.; Tags unique to awesome-claude-skills: agent-skills, automation, claude-code, composio; When you are looking to customize and extend the capabilities of Claude AI through various skills and plugins. ### When should I choose harness-books over awesome-claude-skills? Choose harness-books over awesome-claude-skills when Tags unique to harness-books: agentic-ai, ai-agents, context-engineering, prompt-engineering; When needing detailed insights into the internal mechanisms of AI agents like Claude Code and Codex for informed development efforts; Leaner open-issue backlog (5). ### When should I avoid awesome-claude-skills? Avoid using if your primary focus is on general-purpose automation that doesn't require integration with Claude AI or its ecosystem. Not recommended if specific automation tasks do not benefit from customization through the provided Claude Skills, or you prefer tools that operate independently without dependency on a particular AI. ### When should I avoid harness-books? If seeking generic AI agent design guidelines that do not focus on the specifics of Claude Code or Codex implementations. When the aim is to work with other types of AI agents or frameworks unrelated to the technologies detailed in harness-books. ### Is awesome-claude-skills or harness-books more popular on GitHub? awesome-claude-skills has more GitHub stars (72,787 vs 2,702). Stars measure visibility, not whether either tool fits your constraints. ### Are awesome-claude-skills and harness-books open source? Yes - both are open-source projects on GitHub. ### Where can I find alternatives to awesome-claude-skills or harness-books? GraphCanon lists graph-backed alternatives at [awesome-claude-skills alternatives](/tools/composiohq-awesome-claude-skills/alternatives) and [harness-books alternatives](/tools/wquguru-harness-books/alternatives) ([awesome-claude-skills markdown twin](/tools/composiohq-awesome-claude-skills/alternatives.md), [harness-books markdown twin](/tools/wquguru-harness-books/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/composiohq-awesome-claude-skills-vs-wquguru-harness-books.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, awesome-claude-skills or harness-books? awesome-claude-skills: Active. harness-books: Slowing. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for awesome-claude-skills and harness-books? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [awesome-claude-skills trust report](/tools/composiohq-awesome-claude-skills/trust); [harness-books trust report](/tools/wquguru-harness-books/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=composiohq-awesome-claude-skills`](/api/graphcanon/graph?tool=composiohq-awesome-claude-skills) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_