React Doctor
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Technology/library/framework comparison analysis guide. An agent skill from revfactory/claude-code-harness.
Install Tech Comparison
$ npx skills add revfactory/claude-code-harness --skill tech-comparison -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install revfactory/claude-code-harness tech-comparison --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/revfactory/claude-code-harness.git skills-src && mkdir -p .claude/skills && cp -r skills-src/experiments/results/case-006/harness/.claude/skills/tech-comparison .claude/skills/tech-comparison && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "tech-comparison" agent skill from https://github.com/revfactory/claude-code-harness/tree/main/experiments/results/case-006/harness/.claude/skills/tech-comparison into .claude/skills/tech-comparison/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tech-comparison", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/revfactory/claude-code-harness/tree/main/experiments/results/case-006/harness/.claude/skills/tech-comparisonType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add revfactory/claude-code-harness --skill tech-comparison -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install revfactory/claude-code-harness tech-comparison --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/revfactory/claude-code-harness.git skills-src && mkdir -p .agents/skills && cp -r skills-src/experiments/results/case-006/harness/.claude/skills/tech-comparison .agents/skills/tech-comparison && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "tech-comparison" agent skill from https://github.com/revfactory/claude-code-harness/tree/main/experiments/results/case-006/harness/.claude/skills/tech-comparison into .agents/skills/tech-comparison/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tech-comparison", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add revfactory/claude-code-harness --skill tech-comparison -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install revfactory/claude-code-harness tech-comparison --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/revfactory/claude-code-harness.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/experiments/results/case-006/harness/.claude/skills/tech-comparison .cursor/skills/tech-comparison && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "tech-comparison" agent skill from https://github.com/revfactory/claude-code-harness/tree/main/experiments/results/case-006/harness/.claude/skills/tech-comparison into .cursor/skills/tech-comparison/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tech-comparison", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/revfactory/claude-code-harness.git --path experiments/results/case-006/harness/.claude/skills/tech-comparison--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add revfactory/claude-code-harness --skill tech-comparison -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install revfactory/claude-code-harness tech-comparison --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/revfactory/claude-code-harness.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/experiments/results/case-006/harness/.claude/skills/tech-comparison .gemini/skills/tech-comparison && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "tech-comparison" agent skill from https://github.com/revfactory/claude-code-harness/tree/main/experiments/results/case-006/harness/.claude/skills/tech-comparison into .gemini/skills/tech-comparison/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tech-comparison", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install revfactory/claude-code-harness tech-comparisonInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add revfactory/claude-code-harness --skill tech-comparison -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/revfactory/claude-code-harness.git skills-src && mkdir -p .github/skills && cp -r skills-src/experiments/results/case-006/harness/.claude/skills/tech-comparison .github/skills/tech-comparison && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "tech-comparison" agent skill from https://github.com/revfactory/claude-code-harness/tree/main/experiments/results/case-006/harness/.claude/skills/tech-comparison into .github/skills/tech-comparison/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tech-comparison", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add revfactory/claude-code-harness --skill tech-comparison -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install revfactory/claude-code-harness tech-comparison --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/revfactory/claude-code-harness.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/experiments/results/case-006/harness/.claude/skills/tech-comparison .opencode/skills/tech-comparison && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "tech-comparison" agent skill from https://github.com/revfactory/claude-code-harness/tree/main/experiments/results/case-006/harness/.claude/skills/tech-comparison into .opencode/skills/tech-comparison/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tech-comparison", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
tech-comparison- GitHub stars
- 120
- Token cost
- ~268 tokens
- SKILL.md length
- 108 words
- Files
- 2 (incl. references)
- Skills in repo
- 15
- Repo updated
- First seen
- Licence
- None found
At a glance
Technology/library/framework comparison analysis guide. An agent skill from revfactory/claude-code-harness.
- Works in 6 steps: 비교 대상 확정: 비교할 라이브러리/프레임워크 목록 정리 → 9개 항목 분석:… → 종합 비교 매트릭스 작성: 정량(수치) + 정성(A-F 등급) 혼합 테이블 → …
- The user requests a comparative analysis of multiple technologies
- SKILL.md covers 비교 분석 워크플로우, 비교 문서 구조, A-F 등급 기준 and 정량 데이터 기준
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Tech Comparison is an agent skill from revfactory/claude-code-harness. Technology/library/framework comparison analysis guide. Use when the user requests a comparative analysis of multiple technologies, libraries, or frameworks — including feature comparison, bundle size, performance, and recommendation.
Its SKILL.md is about 270 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/comparison-framework.md`).
It sits in Frontend & Design, covering Web performance.
When your agent uses it
- The user requests a comparative analysis of multiple technologies
- Frameworks — including feature comparison
Example prompts
- “/tech-comparison”
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- 비교 대상 확정: 비교할 라이브러리/프레임워크 목록 정리
- 9개 항목 분석: references/comparison-framework.md 참조
- 종합 비교 매트릭스 작성: 정량(수치) + 정성(A-F 등급) 혼합 테이블
- 개별 분석: 각 라이브러리별 핵심 개념, 강점/약점, 적합 사례
- 코드 비교: 동일 기능을 각 라이브러리로 구현
- 추천 가이드: 프로젝트 규모별, 유형별, 팀 상황별
What it can do on your machine
Read from SKILL.md and the folder at commit 267005c. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Tech Comparison loads about 268 tokens when it runs, and up to ~684 if it reads all its reference files. Until then it costs about 63 tokens; SKILL.md has 108 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 108 words (~268 tokens).
- name
- tech-comparison
Files
SKILL.md and 1 other file (references) in experiments/results/case-006/harness/.claude/skills/tech-comparison of revfactory/claude-code-harness.
- SKILL.md
- references/comparison-framework.md
Open the folder on GitHubat commit 267005c
Compare with similar skills
Tech Comparison next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Tech Comparison this skillrevfactory/claude-code-harness | 120 | — | ~268 | Automated safety check: Pass | None | |
| React Doctormakeplane/plane | 61k | 12 repos | ~657 | Automated safety check: Pass | AGPL-3.0 | |
| Fixing Motion Performanceibelick/ui-skills | 9.5k | 5 repos | ~1.4k | Automated safety check: Pass | MIT | |
| GSAP Performance Tuninggreensock/gsap-skills | 16k | 4 repos | ~1k | Automated safety check: Pass | MIT | |
| React Frontend Development Guidelinesdiet103/claude-code-infrastructure-showcase | 10k | 2 repos | ~2.9k | Automated safety check: Pass | MIT | |
| Web Quality Auditaddyosmani/web-quality-skills | 2.9k | — | ~2.6k | Automated safety check: Pass | MIT |
Similar skills
Fixing Motion Performance
ibelick/ui-skills
Audits and fixes web animation performance: layout thrashing, work that belongs on the compositor, scroll-linked motion and costly blur effects.
GSAP Performance Tuning
greensock/gsap-skills
Guides the agent to keep GSAP animations smooth by animating transforms and opacity, batching DOM reads and writes, and avoiding layout-heavy properties.
React Frontend Development Guidelines
diet103/claude-code-infrastructure-showcase
Guidelines for React 18 and TypeScript apps covering Suspense data fetching, lazy loading, feature folders, MUI v7 styling, TanStack Router and performance.
Web Quality Audit
addyosmani/web-quality-skills
Run an evidence-led web quality audit covering performance, accessibility, SEO, best practices, and agentic browsing.
SEO Google
AgriciDaniel/codex-seo
Google SEO APIs: Search Console (Search Analytics, URL Inspection, Sitemaps), PageSpeed Insights v5, CrUX field data with 25-week history, Indexing API v3, and GA4 organic traffic.
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Related
Categories
Questions about Tech Comparison
What does Tech Comparison do?
Technology/library/framework comparison analysis guide. An agent skill from revfactory/claude-code-harness. Tech Comparison is an agent skill from revfactory/claude-code-harness. Technology/library/framework comparison analysis guide.
When should I use Tech Comparison?
Tech Comparison fits situations like: the user requests a comparative analysis of multiple technologies; frameworks — including feature comparison.
How do I install Tech Comparison in Claude Code?
Run `npx skills add revfactory/claude-code-harness --skill tech-comparison -a claude-code`. Or copy the skill folder (experiments/results/case-006/harness/.claude/skills/tech-comparison in revfactory/claude-code-harness) into .claude/skills/tech-comparison in your project. Claude Code loads it when a task matches its description.
How do I install Tech Comparison in Codex?
Run `npx skills add revfactory/claude-code-harness --skill tech-comparison -a codex`. Or copy the skill folder (experiments/results/case-006/harness/.claude/skills/tech-comparison in revfactory/claude-code-harness) into .agents/skills/tech-comparison in your project. Codex loads it when a task matches its description.
Can I use Tech Comparison in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add revfactory/claude-code-harness --skill tech-comparison -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/tech-comparison, .gemini/skills/tech-comparison, .github/skills/tech-comparison and .opencode/skills/tech-comparison in your project.
What does Tech Comparison need to run?
SKILL.md names no scripts, command-line tools or credentials: Tech Comparison is instructions for the agent only.
Does Tech Comparison access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Tech Comparison safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Tech Comparison use?
No licence was found for Tech Comparison or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Tech Comparison use?
About 268 tokens (SKILL.md is roughly 1.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 416 tokens, read only when the agent opens those files.
What are the alternatives to Tech Comparison?
Skills that share tags, products or a category with Tech Comparison: React Doctor (makeplane/plane, 61k stars), Fixing Motion Performance (ibelick/ui-skills, 9.5k stars), GSAP Performance Tuning (greensock/gsap-skills, 16k stars) and React Frontend Development Guidelines (diet103/claude-code-infrastructure-showcase, 10k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Tech Comparison?
revfactory (a GitHub user) maintains it in revfactory/claude-code-harness, which has 120 GitHub stars. The repository holds 15 skills in this directory. The repository was last updated on March 6, 2026.
Source: revfactory/claude-code-harness on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.