Brainstorming Before Building
jnMetaCode/superpowers-zh
Turns a rough idea into an approved design before any code is written, sorting the request into spike, bounded or architectural and enforcing an approval gate.
Dispatch an independent challenger agent to adversarially review a spec or implementation plan against the actual codebase.
Install Design Review
$ npx skills add xwtro0tk1t-cloud/harness --skill design-review -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install xwtro0tk1t-cloud/harness design-review --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/xwtro0tk1t-cloud/harness.git skills-src && mkdir -p .claude/skills && cp -r skills-src/bundled-skills/design-review .claude/skills/design-review && 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 "design-review" agent skill from https://github.com/xwtro0tk1t-cloud/harness/tree/main/bundled-skills/design-review into .claude/skills/design-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "design-review", 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/xwtro0tk1t-cloud/harness/tree/main/bundled-skills/design-reviewType 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 xwtro0tk1t-cloud/harness --skill design-review -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install xwtro0tk1t-cloud/harness design-review --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/xwtro0tk1t-cloud/harness.git skills-src && mkdir -p .agents/skills && cp -r skills-src/bundled-skills/design-review .agents/skills/design-review && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "design-review" agent skill from https://github.com/xwtro0tk1t-cloud/harness/tree/main/bundled-skills/design-review into .agents/skills/design-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "design-review", 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 xwtro0tk1t-cloud/harness --skill design-review -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install xwtro0tk1t-cloud/harness design-review --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/xwtro0tk1t-cloud/harness.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/bundled-skills/design-review .cursor/skills/design-review && 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 "design-review" agent skill from https://github.com/xwtro0tk1t-cloud/harness/tree/main/bundled-skills/design-review into .cursor/skills/design-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "design-review", 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/xwtro0tk1t-cloud/harness.git --path bundled-skills/design-review--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 xwtro0tk1t-cloud/harness --skill design-review -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install xwtro0tk1t-cloud/harness design-review --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/xwtro0tk1t-cloud/harness.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/bundled-skills/design-review .gemini/skills/design-review && 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 "design-review" agent skill from https://github.com/xwtro0tk1t-cloud/harness/tree/main/bundled-skills/design-review into .gemini/skills/design-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "design-review", 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 xwtro0tk1t-cloud/harness design-reviewInstalls 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 xwtro0tk1t-cloud/harness --skill design-review -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/xwtro0tk1t-cloud/harness.git skills-src && mkdir -p .github/skills && cp -r skills-src/bundled-skills/design-review .github/skills/design-review && 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 "design-review" agent skill from https://github.com/xwtro0tk1t-cloud/harness/tree/main/bundled-skills/design-review into .github/skills/design-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "design-review", 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 xwtro0tk1t-cloud/harness --skill design-review -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install xwtro0tk1t-cloud/harness design-review --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/xwtro0tk1t-cloud/harness.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/bundled-skills/design-review .opencode/skills/design-review && 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 "design-review" agent skill from https://github.com/xwtro0tk1t-cloud/harness/tree/main/bundled-skills/design-review into .opencode/skills/design-review/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "design-review", 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
design-review- GitHub stars
- 265
- Token cost
- ~1.6k tokens
- SKILL.md length
- 659 words
- Files
- 2
- Skills in repo
- 7
- Repo updated
- First seen
- Licence
- None found
At a glance
Dispatch an independent challenger agent to adversarially review a spec or implementation plan against the actual codebase.
- Works in 3 steps: Identify Inputs → Dispatch Challenger Agent → 6: Same as plan-review
- Tasks that involve Design review and critique
- SKILL.md covers Overview, When to Use, Modes and Process, plus 6 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Design Review is an agent skill from xwtro0tk1t-cloud/harness. Dispatch an independent challenger agent to adversarially review a spec or implementation plan against the actual codebase. Catches hallucinated APIs, wrong field names, nonexistent files, and incorrect assumptions. Two modes: (1) spec review — verifies DB model fields, API paths, config attributes, file paths referenced in a design spec, (2) plan review — verifies imports, function signatures, constructor args, file paths in an implementation plan. Use after brainstorming produces a spec, or after writing-plans…
Its SKILL.md is about 1.6k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `challenger-prompt.md`).
It sits in Agent Workflows, covering Design review and critique, Planning and Brainstorming. The repository describes itself as: Harness is an AI Agent development guardrail Meta-Skill that establishes four layers of defense for any project in one command: knowledge management, architecture constraints…
When your agent uses it
- Tasks that involve Design review and critique
- Tasks that involve Planning
- Tasks that involve Brainstorming
Example prompts
- “review the spec”
- “review the plan”
- “challenge this”
- “/design-review”
Workflow steps
3 steps, taken from the step headings in SKILL.md.
- Identify Inputs
- Dispatch Challenger Agent
- 6: Same as plan-review
What it can do on your machine
Read from SKILL.md and the folder at commit 3e8bb50. 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.
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
Design Review loads about 1.6k tokens when it runs. Until then it costs about 181 tokens; SKILL.md has 659 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 659 words (~1,645 tokens).
“Specs and plans written by AI often contain hallucinations: references to APIs that don't exist, wrong column names, incorrect file paths, assumed config attributes that were never defined. These errors waste hours during implementation.”
- name
- design-review
Files
SKILL.md and 1 other file in bundled-skills/design-review of xwtro0tk1t-cloud/harness.
- SKILL.md
- challenger-prompt.md
Open the folder on GitHubat commit 3e8bb50
Compare with similar skills
Design Review 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 |
|---|---|---|---|---|---|---|
| Design Review this skillxwtro0tk1t-cloud/harness | 265 | — | ~1.6k | Automated safety check: Pass | None | |
| Brainstorming Before BuildingjnMetaCode/superpowers-zh | 8.3k | — | ~1.8k | Automated safety check: Pass | MIT | |
| LLM Councilgcpdev/llm-council-skill | 461 | — | ~1k | Automated safety check: Notes | MIT | |
| CE BrainstormEveryInc/compound-engineering-plugin | 25k | — | ~1.9k | Automated safety check: Pass | MIT | |
| Planmhmzdev/the-holy-quran-app | 888 | — | ~957 | Automated safety check: Pass | MIT | |
| Brainstorminged3dai/ed3d-plugins | 250 | 1 repos | ~4.3k | Automated safety check: Pass | None |
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Related
Categories
Questions about Design Review
What does Design Review do?
Dispatch an independent challenger agent to adversarially review a spec or implementation plan against the actual codebase. Design Review is an agent skill from xwtro0tk1t-cloud/harness. Dispatch an independent challenger agent to adversarially review a spec or implementation plan against the actual codebase.
When should I use Design Review?
Design Review fits situations like: tasks that involve Design review and critique; tasks that involve Planning; tasks that involve Brainstorming.
How do I install Design Review in Claude Code?
Run `npx skills add xwtro0tk1t-cloud/harness --skill design-review -a claude-code`. Or copy the skill folder (bundled-skills/design-review in xwtro0tk1t-cloud/harness) into .claude/skills/design-review in your project. Claude Code loads it when a task matches its description.
How do I install Design Review in Codex?
Run `npx skills add xwtro0tk1t-cloud/harness --skill design-review -a codex`. Or copy the skill folder (bundled-skills/design-review in xwtro0tk1t-cloud/harness) into .agents/skills/design-review in your project. Codex loads it when a task matches its description.
Can I use Design Review 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 xwtro0tk1t-cloud/harness --skill design-review -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/design-review, .gemini/skills/design-review, .github/skills/design-review and .opencode/skills/design-review in your project.
What does Design Review need to run?
SKILL.md names no scripts, command-line tools or credentials: Design Review is instructions for the agent only.
Does Design Review 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 Design Review 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 Design Review use?
No licence was found for Design Review or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Design Review use?
About 1.6k tokens (SKILL.md is roughly 6.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Design Review?
Skills that share tags, products or a category with Design Review: Brainstorming Before Building (jnMetaCode/superpowers-zh, 8.3k stars), LLM Council (gcpdev/llm-council-skill, 461 stars), CE Brainstorm (EveryInc/compound-engineering-plugin, 25k stars) and Plan (mhmzdev/the-holy-quran-app, 888 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Design Review?
xwtro0tk1t-cloud (a GitHub user) maintains it in xwtro0tk1t-cloud/harness, which has 265 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on May 4, 2026.
Source: xwtro0tk1t-cloud/harness on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.