nextclaw: Skill for Codex

.agents/skills/development-task-understanding/SKILL.md

development-task-understanding is a skill for Codex from Peiiii/nextclaw. It costs 65 tokens per session (1,582 once invoked), scanned A, original, MIT.

A method for understanding what a development task actually requires by tracing the user's entry point through the software.

In plain words
What is it for?
Use it for investigations, complex changes, bug fixes, root-cause analysis, reproductions, and checking the full path from producer through state and boundaries to consumer.
Why use it?
It prevents decisions based only on filenames, isolated code, screenshots, or imagined requirements, and separates confirmed facts from assumptions.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: installed under .agents/ (shared by several agents).

This is Peiiii/nextclaw's own configuration. It tells Codex how to work on nextclaw itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything nextclaw configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Peiiii/nextclaw. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Peiiii/nextclaw/master/.agents/skills/development-task-understanding/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Peiiii/nextclaw

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 development-task-understanding

README.md
[![agentmods](https://agentmods.dev/badge/skills/peiiii/nextclaw/development-task-understanding/github.svg)](https://agentmods.dev/skills/peiiii/nextclaw/development-task-understanding)
Your own site
<a href="https://agentmods.dev/skills/peiiii/nextclaw/development-task-understanding"><img src="https://agentmods.dev/badge/skills/peiiii/nextclaw/development-task-understanding/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 development-task-understanding

Your own site · 80×15
<a href="https://agentmods.dev/skills/peiiii/nextclaw/development-task-understanding"><img src="https://agentmods.dev/badge/skills/peiiii/nextclaw/development-task-understanding.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 65 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,582 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00065 $0.01582
Opus 5.5 $0.00026 $0.00633
Sonnet 5.5 $0.00013 $0.00316
Haiku 4.5 $0.00006 $0.00158

Measured 29d ago against content hash 12d5a70500a3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

development-task-understanding 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 29d 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.

.agents/skills/development-task-understanding/SKILL.md · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Development Task Understanding

目标

回答“用户要解决什么,系统实际怎样”。沿用户指出的入口取证,不凭文件名、局部调用或截图外推,也不从愿景、使用信号或市场发明需求;相邻机会只记为范围外。

进入

标准开发任务轻量进入;明确要求调查、完整链路、复杂调试或根因,或局部证据不足时正式展开。

先冻结:

  • 用户或系统可观察问题;
  • 最小完整结果及其必要链路;
  • 任务类型、flow 分类依据、Design/文档建议;bugfix 另含复现层级与修后判定;
  • 期望行为和成功条件;用户任务给出“角色/起点 → 当前操作 → 可见结果”的现状链路,标出断点与未知,不用技术调用链替代,也不在理解阶段设计新交互;
  • 范围、非目标和约束;
  • 当前已知事实、假设和未知项;保存用户预期与共识来源,区分明确要求、已确认选择与 AI 推断,沉默不作确认;
  • 最近 owner、影响面和 L0-L4 风险。
  • 技术决策状态:沿用、用户指定或待选型。新项目、技术栈替换及新增影响运行/部署的关键依赖须识别选型需求,记录目标环境、已有约束和未知项,交由设计解决;普通小改沿用现有栈并简述依据,不重选。

大型交付在依赖输入展开设计/实现前,将原始输入与约束整理到 docs/logs/ 的本任务日志:短内容用“原始输入与约束”章节,多材料或需独立引用时拆日期前缀文件并从日志链接。其它需留痕或跨轮复用的任务沿用此落点,小改动不强制建日志。记录原话/原型/附件的位置与版本、用户要求及材料用途,区分必须遵循、参考、AI 推断与待定;不能把功能原型自动降为样式参考。读取相关原件后提炼,不能仅凭 AI 摘要;原件缺失标明未知,只暂停依赖它的决策。

涉及框架、协议或通用抽象时,先用真实场景证明零改动闭环;能成立就不改。只有可复现、无法由业务或 adapter 承接且阻断当前结果的共同缺口才升级;未来可能和“更通用”不算证据。

调查顺序

  1. 明确判断对象和会改变的下一步决策。
  2. 读取对象本体,记录它实际产生、保存、转换或消费的事实。
  3. 查调用方、被调用方、同类入口和规范事实源,记录现有能力与复用依据;未检索不算不存在。
  4. 沿最近完整链路核对 producer -> owner/state -> boundary -> consumer。
  5. 扫同 owner 或责任链的同类问题,但不无界扩张到全仓库。
  6. 区分已确认事实、合理假设和仍需验证的未知项。
  7. 判断路径是否显然,或存在会改变结果、owner、复杂度或验证的真实设计空间。

使用可复用知识时核对来源、版本/环境和有效性;设计决定不等于已经实现,历史成功不证明当前状态。维护事实或出现资料冲突时读取事实知识合同。

Bug 复现门

bugfix 默认复现,必须选择 reproduce 或 skip-reproduction:

  • 根因、违约边界或修后判定任一不确定时,选择 reproduce,用命中同一违约点的最低成本复现。
  • 仅当直接证据锁定根因和边界且有贴近风险的修后验证时,才选择 skip-reproduction,并记录依据和替代验证。
  • 时间、环境和 Token 只影响复现层级,不降低证明门槛。

reproduce 保留失败入口、输入和指标供 Validation 复验;skip-reproduction 披露没有修前基线。复现不新增 phase。

按失效机制选最低充分层级:纯逻辑用单元、协作边界用集成、时序/环境/用户状态用真实链路。偶发或无法安全重现时先收集现场日志、追踪和状态;根因未锁定保持调查,不能把环境受限写成复现成功。紧急缓解不等于根因修复。

每次新增调查必须改变一个设计、实现或验证决策;已确认且未变化的长文件、日志和命令输出不得重读。

外部协议按端点和操作取证,不从单个成功端点外推。有状态机制分别核对触发、输入、替换、持久化/恢复、重试和测试;registry/catalog 投影对照 canonical 来源。

条件方法

  • 用户只给出方向、目标边界模糊或“做到什么程度”会改变交付时,读取最小完整结果边界。
  • 跨多 hop、runtime、transport、异步边界,或真实复现昂贵时,读取链路切片。
  • 用户要求系统根因、事故复盘或机制沉淀,且已有足够直接证据时,读取根因分层。
  • 项目另有代码清理或专项调查合同且当前意图命中时,按项目入口读取;本阶段不复制专项方法。

Read the full file on GitHub · 79 lines

Files

What ships with it

4 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. 29d ago Changed · +1 lines 12d5a70500a3
  2. 1mo ago Changed · +2 lines dfcbdb5050d1
  3. 1mo ago Changed 4c09fd71754d
  4. 1mo ago Changed 483f130a0e4c
  5. 1mo ago Changed · +1 lines 893148ae5b04
  6. 1mo ago Changed 64a5f92e5469
  7. 1mo ago Changed · +4 lines de330d9b72be
  8. 2mo ago First seen · 71 lines · 65 tokens per session scan A 7c2a383ff465

Subscribe to this mod's changes

development-task-understanding is a skill published in the GitHub repository Peiiii/nextclaw (263 stars, last pushed yesterday), licensed MIT. It adds 65 tokens to every session and 1,582 once invoked, about $0.0003 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 2026-08-30.

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