Devil Advocate
jeremylongshore/tons-of-skills-marketplace
Constructive critic and stress-tester for ideas and proposals.
Argue hard against whatever you just concluded — so your decision has to survive a real challenge instead of an echo chamber.
$ npx skills add mohitagw15856/pm-claude-skills --skill devils-advocate-on-demand -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install mohitagw15856/pm-claude-skills devils-advocate-on-demand --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/mohitagw15856/pm-claude-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/devils-advocate-on-demand .claude/skills/devils-advocate-on-demand && 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 "devils-advocate-on-demand" agent skill from https://github.com/mohitagw15856/pm-claude-skills/tree/main/skills/devils-advocate-on-demand into .claude/skills/devils-advocate-on-demand/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "devils-advocate-on-demand", 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/mohitagw15856/pm-claude-skills/tree/main/skills/devils-advocate-on-demandType 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 mohitagw15856/pm-claude-skills --skill devils-advocate-on-demand -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install mohitagw15856/pm-claude-skills devils-advocate-on-demand --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mohitagw15856/pm-claude-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/devils-advocate-on-demand .agents/skills/devils-advocate-on-demand && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "devils-advocate-on-demand" agent skill from https://github.com/mohitagw15856/pm-claude-skills/tree/main/skills/devils-advocate-on-demand into .agents/skills/devils-advocate-on-demand/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "devils-advocate-on-demand", 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 mohitagw15856/pm-claude-skills --skill devils-advocate-on-demand -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install mohitagw15856/pm-claude-skills devils-advocate-on-demand --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mohitagw15856/pm-claude-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/devils-advocate-on-demand .cursor/skills/devils-advocate-on-demand && 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 "devils-advocate-on-demand" agent skill from https://github.com/mohitagw15856/pm-claude-skills/tree/main/skills/devils-advocate-on-demand into .cursor/skills/devils-advocate-on-demand/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "devils-advocate-on-demand", 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/mohitagw15856/pm-claude-skills.git --path skills/devils-advocate-on-demand--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 mohitagw15856/pm-claude-skills --skill devils-advocate-on-demand -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install mohitagw15856/pm-claude-skills devils-advocate-on-demand --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mohitagw15856/pm-claude-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/devils-advocate-on-demand .gemini/skills/devils-advocate-on-demand && 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 "devils-advocate-on-demand" agent skill from https://github.com/mohitagw15856/pm-claude-skills/tree/main/skills/devils-advocate-on-demand into .gemini/skills/devils-advocate-on-demand/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "devils-advocate-on-demand", 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 mohitagw15856/pm-claude-skills devils-advocate-on-demandInstalls 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 mohitagw15856/pm-claude-skills --skill devils-advocate-on-demand -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/mohitagw15856/pm-claude-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/devils-advocate-on-demand .github/skills/devils-advocate-on-demand && 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 "devils-advocate-on-demand" agent skill from https://github.com/mohitagw15856/pm-claude-skills/tree/main/skills/devils-advocate-on-demand into .github/skills/devils-advocate-on-demand/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "devils-advocate-on-demand", 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 mohitagw15856/pm-claude-skills --skill devils-advocate-on-demand -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install mohitagw15856/pm-claude-skills devils-advocate-on-demand --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mohitagw15856/pm-claude-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/devils-advocate-on-demand .opencode/skills/devils-advocate-on-demand && 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 "devils-advocate-on-demand" agent skill from https://github.com/mohitagw15856/pm-claude-skills/tree/main/skills/devils-advocate-on-demand into .opencode/skills/devils-advocate-on-demand/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "devils-advocate-on-demand", 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.
devils-advocate-on-demandArgue hard against whatever you just concluded — so your decision has to survive a real challenge instead of an echo chamber.
Devils Advocate On Demand is an agent skill from mohitagw15856/pm-claude-skills. Argue hard against whatever you just concluded — so your decision has to survive a real challenge instead of an echo chamber. Use when asked to play devil's advocate, argue against this, challenge my conclusion, or talk me out of it. Produces the strongest case against your position, the uncomfortable questions you're avoiding, the evidence that cuts the other way, and an honest read on whether your conclusion survives the challenge — deliberately countering the 'that's a great idea!' agreement bias.
Its SKILL.md is about 890 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
The repository describes itself as: 1255 professional Agent Skills for Claude, ChatGPT, Gemini, Cursor & Codex — PRDs, postmortems, leases, medical bills, layoffs, go-bags, new countries. Plain markdown, MIT, in… The licence is MIT.
5 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit 1cbf1f0. It shows what the files ask for, not the result of running them.
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.
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.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Devils Advocate On Demand loads about 893 tokens when it runs. Until then it costs about 133 tokens; SKILL.md has 431 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.
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.
The full file from mohitagw15856/pm-claude-skills at commit 1cbf1f0, republished under its MIT licence (© mohitagw15856). 431 words, ~893 tokens.
.claude/skills/devils-advocate-on-demand/SKILL.md (or your agent's skills folder).AI and friendly humans have a strong bias toward agreeing with you — which feels nice and teaches you nothing. This does the opposite on command: it argues hard against your conclusion, asks the questions you're dodging, and surfaces the evidence pointing the other way. If your decision survives, you can trust it more. If it doesn't, better to find out now.
Ask for these if not provided:
The case against it: [strongest honest counter-argument]. Questions you're avoiding: [the uncomfortable ones]. Evidence the other way: [what cuts against you]. Weak link in your reasoning: [where it's shakiest]. Verdict: [survives — stronger now / cracks — reconsider / genuinely 50/50 — here's the deciding factor].
© mohitagw15856, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Just SKILL.md in skills/devils-advocate-on-demand of mohitagw15856/pm-claude-skills.
Open the folder on GitHubat commit 1cbf1f0
Devils Advocate On Demand 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 |
|---|---|---|---|---|---|---|
| Devils Advocate On Demand this skillmohitagw15856/pm-claude-skills | 1.4k | — | ~893 | Automated safety check: Pass | MIT | |
| Devil Advocatejeremylongshore/tons-of-skills-marketplace | 2.8k | — | ~2.1k | Automated safety check: Pass | MIT | |
| Devils Advocatedaymade/claude-code-skills | 1.4k | — | ~1.7k | Automated safety check: Pass | MIT | |
| Devils Advocatepedrohcgs/claude-code-my-workflow | 1.7k | 2 repos | ~641 | Automated safety check: Pass | MIT | |
| Devils AdvocateOneWave-AI/claude-skills | 336 | — | ~2k | Automated safety check: Pass | MIT | |
| Hard Callalirezarezvani/claude-skills | 28k | — | ~1.8k | Automated safety check: Pass | MIT |
jeremylongshore/tons-of-skills-marketplace
Constructive critic and stress-tester for ideas and proposals.
daymade/claude-code-skills
结构化压力测试一个论点(devil's advocate / 魔鬼代言人):把论点拆成显性断言与隐性假设(A1/A2 编号), 逐条在用户给定的证据材料里检索带出处的反方论证,标 High/Medium/Low 风险等级,补基础比率外部视角, 最后给出「可监测的证伪信号」清单;输出结构化 findings + 人读叙事双层结果。找不到反证时如实声明「未找到」, 绝不编造。复刻自…
pedrohcgs/claude-code-my-workflow
Adversarial 5-7 question challenge to a deck's pedagogical choices — ordering, prerequisites, cognitive load, motivation.
OneWave-AI/claude-skills
Argues the strongest honest case against a decision, plan, belief, hire, pricing move, strategy, or piece of work the user is leaning toward.
alirezarezvani/claude-skills
/em:hard-call — Framework for decisions with no good options.
majiayu000/spellbook
想法群聊室 — 反方角色。被 idea-team 主编排器调用,或用户单独说"反方意见"、"挑这个想法的刺"、"为什么会失败"、"找漏洞 / 反例"、"devil's advocate"时触发。专门挑漏洞、找隐藏假设、给反例——不安慰、不"也许可以这样"、不全盘否定。Do NOT use when 用户要数据(用 idea-research)、要类比启示(用…
mohitagw15856/pm-claude-skills
Compare the total cost of car ownership across buy-new, buy-used, lease, and keep-your-current-car — depreciation, insurance, maintenance ramp, and fuel over a real horizon, not just the monthly…
mohitagw15856/pm-claude-skills
Build a customer health scorecard for a specific account. An agent skill from mohitagw15856/pm-claude-skills.
mohitagw15856/pm-claude-skills
Compute who gets what at each exit price from a cap table — liquidation preferences, conversion points, and where the founders' share collapses.
mohitagw15856/pm-claude-skills
Apply prioritisation frameworks (RICE, MoSCoW, Kano, ICE, Opportunity Scoring) to rank features and backlog items.
mohitagw15856/pm-claude-skills
Compute a financial-independence (FIRE) target and years-to-reach with every assumption labeled as an assumption — plus a sensitivity table instead of a single false-precision answer.
mohitagw15856/pm-claude-skills
Derive a freelance day/hourly rate backwards from target income, honest billable utilization, overhead, and the self-employment tax premium — the arithmetic that proves a rate is not salary÷2000.
Argue hard against whatever you just concluded — so your decision has to survive a real challenge instead of an echo chamber. Devils Advocate On Demand is an agent skill from mohitagw15856/pm-claude-skills. Argue hard against whatever you just concluded — so your decision has to survive a real challenge instead of an echo chamber.
Devils Advocate On Demand fits situations like: asked to play devils advocate; argue against this; challenge my conclusion; talk me out of it.
Run `npx skills add mohitagw15856/pm-claude-skills --skill devils-advocate-on-demand -a claude-code`. Or copy the skill folder (skills/devils-advocate-on-demand in mohitagw15856/pm-claude-skills) into .claude/skills/devils-advocate-on-demand in your project. Claude Code loads it when a task matches its description.
Run `npx skills add mohitagw15856/pm-claude-skills --skill devils-advocate-on-demand -a codex`. Or copy the skill folder (skills/devils-advocate-on-demand in mohitagw15856/pm-claude-skills) into .agents/skills/devils-advocate-on-demand in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add mohitagw15856/pm-claude-skills --skill devils-advocate-on-demand -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/devils-advocate-on-demand, .gemini/skills/devils-advocate-on-demand, .github/skills/devils-advocate-on-demand and .opencode/skills/devils-advocate-on-demand in your project.
SKILL.md names no scripts, command-line tools or credentials: Devils Advocate On Demand is instructions for the agent only.
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.
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.
Devils Advocate On Demand is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 893 tokens (SKILL.md is roughly 3.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Devils Advocate On Demand: Devil Advocate (jeremylongshore/tons-of-skills-marketplace, 2.8k stars), Devils Advocate (daymade/claude-code-skills, 1.4k stars), Devils Advocate (pedrohcgs/claude-code-my-workflow, 1.7k stars) and Devils Advocate (OneWave-AI/claude-skills, 336 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
mohitagw15856 (a GitHub user) maintains it in mohitagw15856/pm-claude-skills, which has 1,434 GitHub stars. The repository holds 1,348 skills in this directory. The repository was last updated on October 9, 2026.
Source: mohitagw15856/pm-claude-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.