app-market-discovery

app-market-discovery is a skill for Codex from MartinPuli/createAnApp. It costs 84 tokens per session (792 once invoked), scanned A, original, MIT.

A research workflow for finding and comparing possible markets and product ideas for Apple apps before choosing a specific idea.

In plain words
What is it for?
Use it to generate and rank app-market opportunities, examine customer problems and business models, and identify ideas for later validation.
Why use it?
It helps avoid committing too early to the first plausible app idea by comparing opportunities against factors such as buyers, budget, distribution, and operating constraints.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: $skill-name invocation.

Good fit Use it to generate and rank app-market opportunities, examine customer problems and business models, and identify ideas for later validation.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/martinpuli/createanapp/app-market-discovery
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add MartinPuli/createAnApp --skill app-market-discovery
Clone the repo
git clone --depth 1 https://github.com/MartinPuli/createAnApp

Made for: Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for app-market-discovery

README.md
[![agentmods](https://agentmods.dev/badge/skills/martinpuli/createanapp/app-market-discovery/github.svg)](https://agentmods.dev/skills/martinpuli/createanapp/app-market-discovery)
Your own site
<a href="https://agentmods.dev/skills/martinpuli/createanapp/app-market-discovery"><img src="https://agentmods.dev/badge/skills/martinpuli/createanapp/app-market-discovery/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for app-market-discovery

Your own site · 80×15
<a href="https://agentmods.dev/skills/martinpuli/createanapp/app-market-discovery"><img src="https://agentmods.dev/badge/skills/martinpuli/createanapp/app-market-discovery.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 84 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 792 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00084 $0.00792
Opus 5 $0.00042 $0.00396
Sonnet 5 $0.00017 $0.00158
Haiku 4.5 $0.00008 $0.00079

Measured 10d ago against content hash e98a628e9cc3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

app-market-discovery scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/app-market-discovery/SKILL.md · 80 lines

How it starts

The opening of the file, as written. The whole thing — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.

App Market Discovery

Search broadly enough to avoid anchoring on the first plausible idea. Deliver ranked opportunity hypotheses for later validation; do not call them validated.

Define the search mandate

Record:

  • target Apple platforms, devices, territories, and languages;
  • consumer, prosumer, or business preference;
  • budget, deadline, team, and desired operator autonomy;
  • acceptable acquisition and monetization models;
  • whether interviews, sales, regulated review, moderation, physical service, or marketplaces are allowed;
  • capabilities or risks the user explicitly excludes.

If constraints are missing, make reversible assumptions and label them. Do not narrow the world to categories already mentioned in the conversation.

Build a diverse opportunity universe

Generate candidates across unrelated jobs and industries. Look for:

  • expensive, frequent, urgent, error-prone, or emotionally important work;
  • underserved workflows hidden inside generic tools, paper, spreadsheets, desktop-only software, or fragmented services;
  • changes in Apple hardware, frameworks, regulation, demographics, or business behavior;
  • markets with reachable buyers and observable purchase intent;
  • jobs where camera, microphone, location, offline work, Pencil, sensors, Shortcuts/App Intents, on-device processing, or Apple ecosystem continuity materially improve the outcome.

Exclude obvious clones, generic AI wrappers, repackaged websites, speculative network-effect markets without a liquidity plan, and ideas whose service burden violates the mandate.

Research the market landscape

Use current direct evidence:

  • App Store queries by territory, ratings, review recency, screenshots, pricing, IAP/subscriptions, and update cadence;
  • competitor sites, help centers, changelogs, public pricing, and positioning;
  • search demand, forums, professional communities, complaints, procurement pages, and job posts;
  • credible industry, demographic, and platform sources;
  • current Apple features that create, commoditize, or eliminate an advantage;
  • distribution channels where the buyer can actually be reached.

Read the full file on GitHub · 80 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 80 lines · 84 tokens per session scan A e98a628e9cc3

Subscribe to this mod's changes

app-market-discovery is a skill published in the GitHub repository MartinPuli/createAnApp (14 stars, last pushed 20d ago), licensed MIT. It adds 84 tokens to every session and 792 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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