geekx-app-forge

geekx-app-forge is a skill for Claude Code, Codex from geekjourneyx/geekx-skills. It costs 93 tokens per session (1,645 once invoked), scanned A, original, MIT.

A product-discovery workflow for turning a vague idea for an app or tool into a small, testable plan before development begins. It examines the real problem, target users, scope, evidence, risks, and possible business value.

In plain words
What is it for?
Use it to question an idea, define its smallest useful version, research important assumptions, set non-goals, and produce a development-ready product outline.
Why use it?
It helps prevent building an oversized product before confirming that the problem is real, frequent enough, and worth solving.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions AGENTS.md.

Good fit Use it to question an idea, define its smallest useful version, research important assumptions, set non-goals, and produce a development-ready product outline.

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Install with agentmods
npx agentmods add skills/geekjourneyx/geekx-skills/geekx-app-forge
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 geekjourneyx/geekx-skills --skill geekx-app-forge
Clone the repo
git clone --depth 1 https://github.com/geekjourneyx/geekx-skills

Made for: Claude Code, 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 geekx-app-forge

README.md
[![agentmods](https://agentmods.dev/badge/skills/geekjourneyx/geekx-skills/geekx-app-forge/github.svg)](https://agentmods.dev/skills/geekjourneyx/geekx-skills/geekx-app-forge)
Your own site
<a href="https://agentmods.dev/skills/geekjourneyx/geekx-skills/geekx-app-forge"><img src="https://agentmods.dev/badge/skills/geekjourneyx/geekx-skills/geekx-app-forge/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 geekx-app-forge

Your own site · 80×15
<a href="https://agentmods.dev/skills/geekjourneyx/geekx-skills/geekx-app-forge"><img src="https://agentmods.dev/badge/skills/geekjourneyx/geekx-skills/geekx-app-forge.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 93 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,645 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 $0.00093 $0.01645
Opus 5.5 $0.00037 $0.00658
Sonnet 5.5 $0.00019 $0.00329
Haiku 4.5 $0.00009 $0.00164

Measured 1mo ago against content hash b1a395b83e2b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

geekx-app-forge 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 1mo 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/geekx-app-forge/SKILL.md · 160 lines

How it starts

The opening of the file, as written. The whole thing — 160 lines — stays where its author put it; the contents beside it link to each section on GitHub.

GeekX App Forge

把“我好像想做个东西”锻造成值得做、范围清楚、体验克制、可直接开发的产品交付包。

核心不是更快写 Spec,而是先证明:为什么要做、真正要解决什么、最小产品是什么、什么绝对不做。

硬门槛

  1. 先查再问。 能从上下文、文件、仓库、官方文档或公开资料确认的事实,不问用户。
  2. 先怀疑需求。 “能做”不等于“该做”;AI Coding 降低开发成本,不等于降低维护和产品复杂度。
  3. 至少 10 轮有效澄清。 REQUIRED SUB-SKILL: 使用 geekx-grilling,一次一问。每轮必须改变目标、范围、用户、成功标准、风险或路线;禁止凑数。
  4. 推荐不等于确认。 用户没有明确选择,就不能关闭分支。
  5. 先自用,再商业化。 先验证自己的高频真实痛点,再检查是否存在可复制人群、付费理由和差异化。
  6. 先删再加。 每个功能都问:这是用户真正要的吗?删掉会不会更好?现在不做会怎样?
  7. 确认前不写 Spec。 需求、非目标和主要风险未关闭时,不进入设计资产。
  8. 交付必须可开发。 已经调研过的静态数据、文案、分类、图标规范、App identity 不得甩给 Coding Agent 重新研究。

阶段门

Gate 0 — 还原真正动机

先确认:

  • 为什么现在产生这个想法;
  • 当前真实场景和频率;
  • 不做 App 时用户如何解决;
  • 用户说要 A,底层是不是其实要 B;
  • 这是持续问题、一次性问题,还是“因为现在容易开发所以想做”。

随后进入至少 10 轮 geekx-grilling。读取 references/grilling-and-reality-check.md。

Gate 1 — Reality Check

对已经形成的主张做反方审查:

  • 伪需求风险;
  • 使用频率是否足够;
  • 是否已有更轻的替代方案;
  • 技术可行性与平台限制;
  • 最大复杂度税;
  • 最可能失败的假设;
  • 最低成本验证;
  • 什么证据会让我们停止。

证据不足时只能标记“待验证”,不能装成事实。

Gate 2 — Evidence Chain

对会改变决策的事实做调研。优先级:

  1. 官方/一手资料;
  2. 原始仓库、API、平台政策;
  3. 真实用户/社区反馈;
  4. 竞品与商业信号;
  5. 二手分析仅作补充。

读取 references/evidence-and-commercialization.md。输出证据、反证、未知项和结论权限。

Gate 3 — Product Shape

把想法压成:

  • 目标用户;
  • 核心任务;
  • 高频触发场景;
  • 一句话价值;
  • P0;
  • 明确非目标;
  • 成功标准;
  • 最小验证;
  • P0.5/P1 只作为延期项。

如果 P0 仍像一个平台,继续删。

Gate 4 — Commercialization Lens

先保证自用价值成立,再回答:

  • 哪类人和我有同样痛点;
  • 为什么他们会持续使用;
  • 为什么现有方案不够;
  • 什么能力可形成差异;
  • 谁可能付钱、为什么;
  • 商业化会不会反过来污染 P0。

商业化不是强行加账号、订阅、云服务;只是保留未来路径。

Gate 5 — Design Freeze

若为 Apple 平台,读取 references/apple-native-product-design.md。 默认:Apple HIG、系统组件、SF 字体、semantic colors、内容优先、低认知负担。禁止把“高级感”翻译成渐变、玻璃、阴影、卡片墙。

用户明确确认目标、P0、非目标、体验方向后,才进入正式设计。

Gate 6 — Spec → Plan

REQUIRED SUB-SKILL: 使用 superpowers:brainstorming 写 Product + Design Engineering Spec;复用已确认决定,不重新发散需求。

用户批准 Spec 后: REQUIRED SUB-SKILL: 使用 superpowers:writing-plans 写 Implementation Plan。

Spec 和 Plan 必须保持同一套名称、范围、数据结构、文案和验收标准;发现冲突先修文档,不让实现 Agent 猜。

Gate 7 — Static Data & App Identity

在交付前补齐 Coding Agent 不应该重新研究的内容:

  • App 名称、英文名、Repo、Bundle ID、平台和最低版本;
  • Tab/导航名称;
  • 用户可见固定文案;
  • 首批 seed;
  • 枚举/分类/manifest;
  • 已研究的数据集与来源映射;
  • 本地通知固定文案;
  • 导出格式;
  • Icon 概念、禁止项、Light/Dark/Tinted 规则;
  • 设计 tokens/系统语义;
  • 任何可直接 import 的 JSON/CSV/Markdown。

Read the full file on GitHub · 160 lines

Files

What ships with it

5 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. 1mo ago First seen · 160 lines · 93 tokens per session scan A b1a395b83e2b

Subscribe to this mod's changes

geekx-app-forge is a skill published in the GitHub repository geekjourneyx/geekx-skills (23 stars, last pushed 1mo ago), licensed MIT. It adds 93 tokens to every session and 1,645 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-09-18.

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