Agent skill

Product Thinking

by millionco in millionco/react-doctor

Think like a product manager before changing React Doctor's public surface — CLI commands/flags, the 0–100 score, config (doctor.config.), the JSON report schema, package APIs…

Custom licenceAuto-check passedDevOps & Cloud

Install Product Thinking

skills CLI
$ npx skills add millionco/react-doctor --skill product-thinking -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install millionco/react-doctor product-thinking --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/millionco/react-doctor.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/product-thinking .claude/skills/product-thinking && rm -rf skills-src

Use ~/.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/

Facts

Skill name
product-thinking
GitHub stars
15k
Token cost
~3.1k tokens
SKILL.md length
1,552 words
Files
1
Skills in repo
13
Repo updated
First seen
Licence
Custom licence

At a glance

Think like a product manager before changing React Doctor's public surface — CLI commands/flags, the 0–100 score, config (doctor.config.), the JSON report schema, package APIs…

  • Works in 7 steps: Write the job and the change → Search before adding → Wire exactly one metric → …
  • Types /product-thinking
  • SKILL.md covers When to run it, Steps, Brief and Stop and ask when, plus 1 more section
  • Calls bunx and rg

What it does

Product Thinking is an agent skill from millionco/react-doctor. Think like a product manager before changing React Doctor's public surface — CLI commands/flags, the 0–100 score, config (doctor.config.), the JSON report schema, package APIs (inspect()/diagnose()), the GitHub Action, the website, and the canonical prompts. A step-by-step runbook for a user-facing change — locate the surface, search for a reuse candidate, wire one telemetry metric, add the compatibility artifacts (changeset / schemaVersion / action tag), update docs, and record a kill metric. Not for lint rules…

Its SKILL.md is about 3.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in DevOps & Cloud, covering Runbooks and postmortems and CI/CD. It works with React. The repository describes itself as: Your agent writes bad React. This catches it.

When your agent uses it

  • Types /product-thinking
  • Tasks that involve Runbooks and postmortems
  • Tasks that involve CI/CD

Example prompts

  • “/product-thinking”

Workflow steps

7 steps, taken from the step headings in SKILL.md.

  1. Write the job and the change
  2. Search before adding
  3. Wire exactly one metric
  4. Pick the default and add the compatibility artifacts
  5. Update the docs
  6. Record the kill metric
  7. Run checks

What it can do on your machine

Read from SKILL.md and the folder at commit 3c668e1. 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

    Shell commands in SKILL.md call:

    • bunx
    • rg

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use bunx, which can reach the network depending on how they are called.

    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

Product Thinking loads about 3.1k tokens when it runs. Until then it costs about 155 tokens; SKILL.md has 1,552 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~155
When it runs · the whole SKILL.md, loaded when a task matches
~3.1k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,552 words (~3,062 tokens).

“A runbook for changing anything a user interacts with. The agent defaults to building exactly what was asked; this pass adds the product checks it skips — whether the change earns its permanent place on the surface, and how you'll…”

— opening of SKILL.md by millionco, Custom licence
name
product-thinking
version
1.0.0

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .agents/skills/product-thinking of millionco/react-doctor.

Open the folder on GitHubat commit 3c668e1

Compare with similar skills

Product Thinking 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.

Product Thinking compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Product Thinking this skillmillionco/react-doctor15k—~3.1kAutomated safety check: PassCustom licence
GitHub Actions Templatesbartstc/vite-ts-react-template12214 repos~1.9kAutomated safety check: PassMIT
Winui AppLanceMcCarthy/DevOpsExamples1721 repos~2.8kAutomated safety check: PassApache-2.0
Prepare Cloudflare Production DeploymentLubomirGeorgiev/cloudflare-workers-nextjs-saas-template786—~5.9kAutomated safety check: NotesMIT
Release Flowromankurnovskii/BrewMate301—~976Automated safety check: PassMIT
Configure Telerik NugetLanceMcCarthy/DevOpsExamples172—~976Automated safety check: PassMIT

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Works with

Categories

Questions about Product Thinking

What does Product Thinking do?

Think like a product manager before changing React Doctor's public surface — CLI commands/flags, the 0–100 score, config (doctor.config.), the JSON report schema, package APIs…. Product Thinking is an agent skill from millionco/react-doctor.), the JSON report schema, package APIs (inspect()/diagnose()), the GitHub Action, the website, and the canonical prompts.

When should I use Product Thinking?

Product Thinking fits situations like: types /product-thinking; tasks that involve Runbooks and postmortems; tasks that involve CI/CD.

How do I install Product Thinking in Claude Code?

Run `npx skills add millionco/react-doctor --skill product-thinking -a claude-code`. Or copy the skill folder (.agents/skills/product-thinking in millionco/react-doctor) into .claude/skills/product-thinking in your project. Claude Code loads it when a task matches its description.

How do I install Product Thinking in Codex?

Run `npx skills add millionco/react-doctor --skill product-thinking -a codex`. Or copy the skill folder (.agents/skills/product-thinking in millionco/react-doctor) into .agents/skills/product-thinking in your project. Codex loads it when a task matches its description.

Can I use Product Thinking 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 millionco/react-doctor --skill product-thinking -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/product-thinking, .gemini/skills/product-thinking, .github/skills/product-thinking and .opencode/skills/product-thinking in your project.

What does Product Thinking need to run?

Going by SKILL.md and its folder, Product Thinking needs the command-line tools its instructions call (bunx and rg).

Does Product Thinking 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 Product Thinking 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 Product Thinking use?

Product Thinking has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Product Thinking use?

About 3.1k tokens (SKILL.md is roughly 12k 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 Product Thinking?

Skills that share tags, products or a category with Product Thinking: GitHub Actions Templates (bartstc/vite-ts-react-template, 122 stars), Winui App (LanceMcCarthy/DevOpsExamples, 172 stars), Prepare Cloudflare Production Deployment (LubomirGeorgiev/cloudflare-workers-nextjs-saas-template, 786 stars) and Release Flow (romankurnovskii/BrewMate, 301 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Product Thinking?

millionco (a GitHub organization) maintains it in millionco/react-doctor, which has 14,971 GitHub stars. The repository holds 13 skills in this directory. The repository was last updated on October 7, 2026.

Source: millionco/react-doctor on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.