briefbound-feature-reuse-research

briefbound-feature-reuse-research is a skill for Claude Code, Codex from CCDawn/codex-skills. It costs 60 tokens per session (1,961 once invoked), scanned A, original, MIT.

A read-only research process for deciding whether a complex feature should reuse an existing project, library, standard, or in-project module.

In plain words
What is it for?
Use it before planning complex features such as parsers, editors, search systems, visualisations, integrations, or import and export tools.
Why use it?
It reduces unnecessary custom development and exposes dependency, licensing, integration, and scope risks before implementation begins.

Skill for Claude CodeCodex

Written for Claude Code and Codex: shipped in a Claude Code plugin, but also agents/openai.yaml present.

Part of the briefbound-skills plugin — 30 skills shipped together

Good fit Use it before planning complex features such as parsers, editors, search systems, visualisations, integrations, or import and export tools.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ccdawn/codex-skills/briefbound-feature-reuse-research
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 CCDawn/codex-skills --skill briefbound-feature-reuse-research
Clone the repo
git clone --depth 1 https://github.com/CCDawn/codex-skills

Made for: Claude Code, Codex.

Or install briefbound-skills, the plugin that ships this one along with the rest of its 30 skills.

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 briefbound-feature-reuse-research

README.md
[![agentmods](https://agentmods.dev/badge/skills/ccdawn/codex-skills/briefbound-feature-reuse-research/github.svg)](https://agentmods.dev/skills/ccdawn/codex-skills/briefbound-feature-reuse-research)
Your own site
<a href="https://agentmods.dev/skills/ccdawn/codex-skills/briefbound-feature-reuse-research"><img src="https://agentmods.dev/badge/skills/ccdawn/codex-skills/briefbound-feature-reuse-research/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 briefbound-feature-reuse-research

Your own site · 80×15
<a href="https://agentmods.dev/skills/ccdawn/codex-skills/briefbound-feature-reuse-research"><img src="https://agentmods.dev/badge/skills/ccdawn/codex-skills/briefbound-feature-reuse-research.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,961 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 $0.00060 $0.01961
Opus 5 $0.00030 $0.00981
Sonnet 5 $0.00012 $0.00392
Haiku 4.5 $0.00006 $0.00196

Measured 10d ago against content hash 397569667ea8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

briefbound-feature-reuse-research 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/engineering/briefbound-feature-reuse-research/SKILL.md · 146 lines

How it starts

The opening of the file, as written. The whole thing — 146 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Briefbound Feature Reuse Research

目标

在复杂功能进入方案制定前,先做只读复用研究:搜索相关项目、库、模块、官方示例和成熟实现,评估是否值得复用、改造、只参考,或自研。

本 skill 不写代码、不安装依赖、不把外部代码直接复制进项目。它输出一个可交给 briefbound-planning 的复用决策。

Briefbound task contract

  • Context Boundary: 用户目标、当前项目可复用点、网络/本地搜索范围、排除范围、许可证和依赖边界。
  • Output Contract: 搜索范围、候选评估、复用决策、Implementation Boundary、Verification Strategy 和 planning handoff。
  • Allowed Action: 只读搜索和只读本地代码/文档检查;不安装依赖、不运行外部代码、不复制外部代码、不扩大用户未确认范围。
  • Success Evidence: 当前项目复用点已查,候选有链接或本地证据,许可证/集成风险已判断,复用决策能作为 briefbound-planning 输入。
  • Stop Condition: 无法搜索、许可证不明、需求不清、复用会改变用户未确认范围、需要安装/试跑/复制外部代码。
  • Route Out: 原开发 owner、briefbound-planning、继续复用研究、briefbound-router 或 BLOCKED。

统一调用契约

  • 只处理 Briefbound task contract 范围;不匹配时回 briefbound-router 或更具体 owner,复合任务不吞其他 owner。
  • 用户可见内容默认中文,完成只报状态、产出、证据和剩余风险;代码、命令、路径、错误原文、API/协议、skill 名和枚举保留原样;Route Out 仅以 Briefbound task contract 为准,末行写 下一步建议: <一个具体动作>

进入条件

使用前确认:

  • 用户目标是新增功能、模块、能力、工作流、复杂 UI、集成、解析器、编辑器、搜索、可视化、导入导出、算法或可复用子系统;
  • 功能复杂度足以影响方案选择,且外部生态可能已有成熟实现;
  • 搜索结果会改变实现路径、依赖选择、风险、成本或验证方式;
  • 允许联网搜索。若当前不能联网,说明限制,并用本地已有依赖、文档和代码做降级研究。

至少需要一个强信号:成熟领域引擎/协议/标准、重要新依赖、跨模块子系统、项目内无稳定模式、用户明确要求外部复用,或 QUICK 搜索可显著避免高成本自研。文件数量和“网上可能有项目”不算强信号。

不使用本 skill:

  • 单点小改、样式调整、普通 bug 修复、机械重构;
  • 用户明确要求从零实现;
  • 功能高度私有,外部实现没有可比价值;
  • 复用只会增加依赖、许可证、维护或集成负担。

研究范围

按功能类型选择 2-4 类来源,不要盲目铺开:

  • 官方文档和官方示例:框架、SDK、协议、浏览器/API、平台能力。
  • 包管理器生态:npm、PyPI、Cargo、Go modules、Maven、NuGet 等。
  • GitHub 项目:相似产品、组件库、插件、参考实现、算法实现。
  • 当前项目内复用:已有模块、工具函数、设计系统、服务接口、测试 helper。
  • 标准/论文/规范:协议、格式、算法、互操作行为。

优先级:

  1. 当前项目已有可复用模块;
  2. 官方推荐库或官方示例;
  3. 活跃、许可证清晰、测试充分的成熟库;
  4. 可参考的开源项目设计;
  5. 自研。

默认先 QUICK:检查项目内复用点,再查看 2-4 个最相关的官方来源、成熟库或 GitHub 项目;决策已稳定就停止,不为凑候选扩大搜索。只有许可证、架构适配或关键能力仍无法判断时才进入 DEEP

候选筛选

每个候选必须有明确价值,不凑数。最多保留 3-5 个候选。

候选字段:

  • Name / Link:名称和来源链接;
  • Capability Fit:覆盖目标功能的哪些部分;
  • License:许可证是否允许当前项目使用;
  • Activity:维护活跃度、近期提交、issue 状态、发布频率;
  • Integration Cost:接入成本、依赖体积、框架/语言/运行时兼容;
  • Adaptation Cost:需要改造的程度;
  • Testability:是否容易写测试和验证;
  • Project Fit:是否符合当前架构、代码风格、依赖边界和长期维护能力;
  • Risk:供应链、弃维护、过度依赖、API 不稳定、性能或可扩展性风险。

Read the full file on GitHub · 146 lines

Files

What ships with it

1 file 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 · 146 lines · 60 tokens per session scan A 397569667ea8

Subscribe to this mod's changes

briefbound-feature-reuse-research is a skill published in the GitHub repository CCDawn/codex-skills (6 stars, last pushed 28d ago), licensed MIT. It adds 60 tokens to every session and 1,961 once invoked, about $0.0003 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 2026-08-31.