git clone --depth 1 https://github.com/tamdogood/builder-essential-skills /tmp/validate-market && cp -r /tmp/validate-market/skills/validate-market ~/.claude/skills/validate-marketSKILL.md
# Validate a project / market
You are running a validation audit. The deliverable is one document that answers: is
there a business here, who else is fighting for it, where are the openings, and what is
the next concrete action. The audit exists to protect months of the founder's life, so
honesty outranks encouragement everywhere.
**Hard gate: no implementation.** No code, no scaffolding, no renames, no site changes.
The only output is the doc (plus its adversarial review). If the user asked for a doc in
a specific place, put it there; otherwise default to `docs/research/<slug>-market-viability-audit.md`
in a repo, or `./<slug>-market-viability-audit.md` outside one.
## Posture (non-negotiable)
- **Interest is not demand.** Stars, waitlists, compliments, and "that's interesting"
count for nothing. Behavior counts: money, panic when it breaks, unprompted return
usage, someone building their workflow around it.
- **The status quo is competitor #1.** The cheap workaround (copy-paste, a spreadsheet,
a config file convention) beats every named startup in the competitor table. Always
list it first and price what it costs the user today.
- **Take a position on everything.** Never write "there are many ways to think about
this" or "that could work". Say what will or won't work on the evidence you have, and
name what evidence would change your mind.
- **Papercut vs bleeding wound.** State plainly whether the pain is acute for a small
population or mild for a large one, and which population is actually reachable.
- **Lead with the disconfirming evidence.** The doc's first section after the verdict is
the honest demand baseline, even (especially) when it is embarrassing.
## Phase 0: Ground truth before opinion
Collect verifiable numbers before writing a single judgment. Do not skip this; it is
what separates an audit from a vibe.
- Repo: age, stars, forks, contributors (`gh repo view <repo> --json stargazerCount,forkCount,createdAt,isPrivate`).
- Live product: hit real endpoints (`curl` the landing page, any public directory or
stats API). Distinguish "deployed" from "used".
- Any analytics, revenue, waitlist, install counts the user can show. Ask if not obvious.
- Apply the bar: **would anyone outside the project be upset if it disappeared
tomorrow?** Write the answer down. If it is "no", that fact dominates the whole doc
and every recommendation must be downstream of fixing it.
## Phase 1: Problem and wedge
- State the problem in the founder's own words; quote them. The founder's phrasing
usually reveals the wedge better than the pitch does.
- Identify the **narrowest wedge**: the one flow someone would adopt this week. One
sentence, verb first ("move X from A to B in 10 seconds"). If the value story needs
the whole platform, say that is a red flag, not a roadmap.
- Name the **target user as a findable human**: role, where they hang out, what they
already pay for. "Developers" or "enterprises" is a filter, not a person.
## Phase 2: Landscape research
Use WebSearch with **generalized category terms**, never the product's name or any
stealth details. Run at least these four searches and read the top results:
1. Standards and platform state of the category ("<category> protocol landscape <year>").
2. Funding and startups in the category ("<category> startups <year> funding").
3. Direct adjacent products solving the same wedge ("<the wedge, described generically> tool").
4. What incumbents absorbed recently ("<big platform> <category> features <year>").
Synthesize three things explicitly:
- **Who owns the lane** the wedge sits in, and whether it is genuinely open.
- **Feature or company?** Could a platform above (the IDE, the OS, the incumbent chat
tool, the lab) absorb this in one release? Name the absorption clock honestly.
- **Is the timing argument already won?** If the market no longer needs educating,
that cuts both ways: no education cost, but the obvious framing is taken.
If WebSearch is unavailable, say so in the doc and proceed on in-distribution knowledge,
clearly labeled as such.
## Phase 3: Premises
Write 3 to 5 premises the whole recommendation rests on. Mark each **verified** (with
the evidence) or **assumed** (with how the founder would check it). Then attack the one
you are most attached to yourself; if you cannot break it, say what external event
would.
## Phase 4: Independent cold read
Get a second opinion that has not seen your reasoning:
- If `codex` is on PATH: assemble a structured context block (product, stage and demand
evidence, founder's stated problem, landscape summary, premises) into a temp file and
run `codex exec` read-only against it with these asks: (1) steelman the strongest
version, (2) quote the one detail that reveals what to actually build, (3) name one
premise that is wrong and the evidence that would prove it, (4) a 48-hour plan with
channels, metrics, and kill criteria.
- Otherwise: dispatch a fresh subagent (Agent tool) with the same prompt. Fresh context
is the point; do not paste your own conclusions.
In the doc, quote the cold read's sharpest challenge and state explicitly whether you
**adopt** it (revise the premise) or **contest** it (and why). Silently agreeing with
yourself is the failure mode this phase exists to prevent.
## Phase 5: Write the doc
Structure (adapt names, keep the order; verdict first, evidence before judgment):
1. **Header + verdict up front.** One paragraph: is there a business here, what is the
binding constraint, what to do next. No hedging.
2. **Problem statement.**
3. **Demand evidence (the honest part).** External evidence first, internal second,
clearly separated. Include the "would anyone be upset?" answer.
4. **Status quo.** The workarounds and what they cost. Papercut-or-wound verdict.
5. **Target user and narrowest wedge.**
6. **Market and timing.** The 2-4 numbers that matter, sourced.
7. **Competitive field.** A table: player, what it is, overlaTransform saved links, papers, articles, posts, videos, and reference collections into approachable AI teaching artifacts for later study. Use when a user wants to queue learning material, create a readable explanation from a source, teach a paper or post step by step, or run an interactive tutor that validates understanding over multiple sessions.
Inspect an unfamiliar repository, turn a focused Markdown behavior scenario into a deterministic test in the repository's native test stack, run it, and preserve traceability between intent and code. Use when asked to add scenario tests, compile acceptance criteria or Given/When/Then Markdown into executable tests, reproduce a user-visible regression, or convert a narrow workflow specification into stable web, API, CLI, desktop, or mobile interaction coverage. Do not use for broad exploratory journeys or agent-judged smoke tests.
>-
Create truthful, human-centered marketing campaigns for an app or product, including positioning, channel copy, original artwork, editable layouts, README banners, and selective website integration. Use when asked to make launch materials, promotional artwork, social assets, campaign kits, ads, or marketing content from an existing product; to adapt a visual reference without copying it; or to add approved campaign art to product surfaces. Do not invent claims, fake UI, publish, deploy, or replace product proof without explicit evidence and authorization.
Create or update a complete repository skill from a user's idea, including the workflow instructions, references, scripts or assets, agent metadata, skill-card artwork, cinematic banner artwork, README links, discovery metadata, and validation. Use when the user asks to create a new skill, add a skill to this collection, turn a workflow into a reusable skill, or make a skill's documentation and artwork consistent with the repository.
>
>
>-