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Agent skill

Product Lens

by affaan-m in affaan-m/ECC

使用此技能在构建前验证“为什么”，运行产品诊断，并在请求成为实施合同之前对产品方向进行压力测试. An agent skill from affaan-m/ECC.

MITAuto-check passed

Install Product Lens

skills CLI
$ npx skills add affaan-m/ECC --skill product-lens -a claude-code

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

GitHub CLI
$ gh skill install affaan-m/ECC product-lens --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/affaan-m/ECC.git skills-src && mkdir -p .claude/skills && cp -r skills-src/docs/zh-CN/skills/product-lens .claude/skills/product-lens && 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-lens
GitHub stars
276k
Token cost
~351 tokens
SKILL.md length
54 words
Files
1
Skills in repo
683
Repo updated
First seen
Licence
MIT

At a glance

使用此技能在构建前验证“为什么”，运行产品诊断，并在请求成为实施合同之前对产品方向进行压力测试. An agent skill from affaan-m/ECC.

  • SKILL.md covers 使用时机, 工作原理, 输出 and 集成
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Product Lens is an agent skill from affaan-m/ECC. 使用此技能在构建前验证“为什么”，运行产品诊断，并在请求成为实施合同之前对产品方向进行压力测试。

Its SKILL.md is about 350 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: The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond. The licence is MIT.

Example prompts

  • “/product-lens”

What it can do on your machine

Read from SKILL.md and the folder at commit 4eb71d9. 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

    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.

  • Network

    No URLs in SKILL.md.

    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 Lens loads about 351 tokens when it runs. Until then it costs about 15 tokens; SKILL.md has 54 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~15
When it runs · the whole SKILL.md, loaded when a task matches
~351

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

The full file from affaan-m/ECC at commit 4eb71d9, republished under its MIT licence (© affaan-m). 54 words, ~351 tokens.

Download SKILL.mdSave it as .claude/skills/product-lens/SKILL.md (or your agent's skills folder).
name
product-lens
description
使用此技能在构建前验证“为什么”，运行产品诊断，并在请求成为实施合同之前对产品方向进行压力测试。
origin
ECC

产品透镜 —— 先思考，再构建

此通道负责产品诊断，而非编写可实施的规格文档。

若用户需要持久的 PRD 到 SRS 或能力契约文档，请移交至 product-capability。

使用时机

  • 启动任何功能前 —— 验证"为什么"
  • 每周产品评审 —— 我们是否在构建正确的东西？
  • 在多个功能间难以抉择时
  • 发布前 —— 对用户旅程进行合理性检查
  • 将模糊想法转化为产品简报，并在工程规划启动前

工作原理

模式 1：产品诊断

类似 YC 办公时间但自动化。提出尖锐问题：

1. 这是为谁准备的？（具体的人，而非“开发者”）
2. 痛点是什么？（量化：频率、严重程度、当前应对方式？）
3. 为什么是现在？（什么变化使其成为可能/必要？）
4. 10星版本是什么？（如果资金/时间无限）
5. MVP是什么？（能验证假设的最小方案）
6. 反目标是什么？（明确不构建什么？）
7. 如何判断有效？（指标，而非感觉）

输出：一份包含答案、风险及"可行/不可行"建议的 PRODUCT-BRIEF.md。

若结果为"是，构建此功能"，下一通道为 product-capability，而非更多创始人表演。

模式 2：创始人评审

以创始人视角审视当前项目：

1. 阅读 README、CLAUDE.md、package.json、最近的提交
2. 推断：这个项目试图成为什么？
3. 评分：产品市场契合度信号（0-10分）
   - 使用增长轨迹
   - 留存指标（重复贡献者、回访用户）
   - 收入信号（定价页面、计费代码、Stripe集成）
   - 竞争护城河（什么难以复制？）
4. 识别：能让这个项目实现10倍增长的关键因素
5. 标记：你正在构建但无关紧要的内容
模式 3：用户旅程审计

映射实际用户体验：

1. 以新用户身份克隆/安装产品
2. 记录每一个摩擦点（令人困惑的步骤、错误、缺失的文档）
3. 为每个步骤计时
4. 与竞争对手的入门流程进行比较
5. 评分：价值实现时间（用户需要多久才能获得首次成功？）
6. 建议：入门流程的三大修复方案
模式 4：功能优先级排序

当你有 10 个想法却需选出 2 个时：

1. 列出所有候选功能
2. 对每个功能进行评分：影响（1-5）× 信心（1-5）÷ 工作量（1-5）
3. 按 ICE 分数排序
4. 应用约束条件：时间窗口、团队规模、依赖关系
5. 输出：带有理由的优先级路线图

输出

所有模式均输出可操作文档，而非长篇大论。每条建议均附带具体下一步行动。

集成

配合使用：

  • /browser-qa 验证用户旅程审计结果
  • /design-system audit 进行视觉优化评估
  • /canary-watch 用于发布后监控
  • product-capability 当产品简报需转化为可实施的能力计划时

© affaan-m, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in docs/zh-CN/skills/product-lens of affaan-m/ECC.

Open the folder on GitHubat commit 4eb71d9

Compare with similar skills

Product Lens 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 Lens compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Product Lens this skillaffaan-m/ECC276k—~351Automated safety check: PassMIT
PR LensNousResearch/hermes-agent253k—~2.4kAutomated safety check: PassMIT
Logic Lenssickn33/agentic-awesome-skills47k1 repos~1.3kAutomated safety check: PassMIT
Product Lens Reviewerudecode/plate17k—~767Automated safety check: PassCustom licence
Argent Lensbbplayer-app/BBPlayer1.2k—~2.7kAutomated safety check: PassMIT
Lens Auditjeremylongshore/tons-of-skills-marketplace2.8k—~1kAutomated safety check: NotesMIT

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  • PR Lens

    NousResearch/hermes-agent

    Draw code changes as animated architecture/data-flow SVGs. An agent skill from NousResearch/hermes-agent.

    253k GitHub stars~2.4k tokensUpdated today
    Auto-check passed

  • Logic Lens

    sickn33/agentic-awesome-skills

    AI-powered Claude Code skill that performs deep code review using formal logic and reasoning frameworks to detect bugs, anti-patterns, and security risks beyond what linters catch.

    47k GitHub starsUsed in 1 repo~1.3k tokens
    DevelopmentAuto-check passed

  • Product Lens Reviewer

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    Reviews planning documents as a senior product leader -- challenges problem framing, evaluates scope decisions, and surfaces misalignment between stated goals and proposed work.

    17k GitHub stars~767 tokensUpdated yesterday
    Auto-check passed

  • Argent Lens

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    1.2k GitHub stars~2.7k tokensUpdated 3 days ago
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  • Lens Audit

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    2.8k GitHub stars~1k tokensUpdated yesterday
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  • Lens Chart

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Questions about Product Lens

What does Product Lens do?

使用此技能在构建前验证“为什么”，运行产品诊断，并在请求成为实施合同之前对产品方向进行压力测试. An agent skill from affaan-m/ECC. Product Lens is an agent skill from affaan-m/ECC.

How do I install Product Lens in Claude Code?

Run `npx skills add affaan-m/ECC --skill product-lens -a claude-code`. Or copy the skill folder (docs/zh-CN/skills/product-lens in affaan-m/ECC) into .claude/skills/product-lens in your project. Claude Code loads it when a task matches its description.

How do I install Product Lens in Codex?

Run `npx skills add affaan-m/ECC --skill product-lens -a codex`. Or copy the skill folder (docs/zh-CN/skills/product-lens in affaan-m/ECC) into .agents/skills/product-lens in your project. Codex loads it when a task matches its description.

Can I use Product Lens 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 affaan-m/ECC --skill product-lens -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-lens, .gemini/skills/product-lens, .github/skills/product-lens and .opencode/skills/product-lens in your project.

What does Product Lens need to run?

SKILL.md names no scripts, command-line tools or credentials: Product Lens is instructions for the agent only.

Does Product Lens 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 Lens 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 Lens use?

Product Lens is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Product Lens use?

About 351 tokens (SKILL.md is roughly 1.4k 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 Lens?

Skills that share tags, products or a category with Product Lens: PR Lens (NousResearch/hermes-agent, 253k stars), Logic Lens (sickn33/agentic-awesome-skills, 47k stars), Product Lens Reviewer (udecode/plate, 17k stars) and Argent Lens (bbplayer-app/BBPlayer, 1.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Product Lens?

affaan-m (a GitHub user) maintains it in affaan-m/ECC, which has 276,111 GitHub stars. The repository holds 683 skills in this directory. The repository was last updated on October 10, 2026.

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