nextclaw: Skill for Claude Code

.agents/skills/development-validation/SKILL.md

development-validation is a skill for Claude Code, Codex from Peiiii/nextclaw. It costs 57 tokens per session (1,854 once invoked), scanned A, original, MIT.

A guide for choosing tests and other checks that prove a software change works.

In plain words
What is it for?
Use it to select focused type checks, linting, tests, boundary checks, and real-path smoke tests for changes from small edits to release-risk work.
Why use it?
It avoids wasting time on broad checks that do not cover the real risk, while ensuring important behaviour and boundaries are tested.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents); mentions AGENTS.md.

This is Peiiii/nextclaw's own configuration. It tells Claude Code and 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-validation/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Peiiii/nextclaw

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 development-validation

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/peiiii/nextclaw/development-validation"><img src="https://agentmods.dev/badge/skills/peiiii/nextclaw/development-validation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,854 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 $0.00057 $0.01854
Opus 5.5 $0.00023 $0.00742
Sonnet 5.5 $0.00011 $0.00371
Haiku 4.5 $0.00006 $0.00185

Measured 1mo ago against content hash be38eceaf72c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

development-validation 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.

.agents/skills/development-validation/SKILL.md · 85 lines

How it starts

The opening of the file, as written. The whole thing — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Development Validation

目标

用充分证据覆盖风险,避免重复验证。

AI 验收(mode=acceptance)

实现稳定后按原始需求及已确认变更逐项核对“用户结果 → 产物/真实入口 → 当前证据”,标记 passed/failed/unverified,同步已有验收账本及 stable IDs。沿约定角色、触发到最终结果验证,区分真实运行与演练;复用有效证据,测试数量或局部记录不能证明完整覆盖。

跨架构交付按合同的双向对账,从可执行产物和环境复核旧→新变化及目标→新缺口;条件能力须实际进入相应分支。缺入口或只验证常规分支不能 passed。验证者可以仍是实现者,但证据必须来自产物与运行结果,不能由设计说明和验收表互相背书。

性能或成本为 Required 项时,按冻结的任务、负载、环境和口径测量用户可感知延迟及实际资源用量,并核对计费依据;同条件比较报告样本量、分位数或区间、冷/热与条件分支、固定/边际成本。估算与线上实测分开,说明外部模型、网络和缓存等变量。不能用启动时间代替端到端等待、一次最佳值代替尾延迟,或空闲单用户成本代替约定使用量。未达门槛或关键分支无证据则保持 failed/not-run 并返工,不以功能测试通过宣布交付。

有原型/附件等输入基准时,从日志或任务已有输入定位适用版本,按约定用途直接对比实现:功能形态、用户链路、交互/状态及要求保持的外观。设计自身的测试不能替代来源核对;只作参考的维度不强加一致性。记录对应证据与差异;原件不可访问或未核对则相关项不能 passed,不以截图相似证明功能一致。

缺实现/证据返回对应阶段继续循环;标准漏项返回设计,不按已实现部分缩减需求。仅缺授权/外部依赖时完成可做准备并报告阻塞。阶段验收须用户明确约定。

必需项全部有效通过才输出 acceptance-ready,附范围、证据与主观确认项;总流程结合 Review 进入 Delivery。Delivery只消费结论和交接,不重做需求验收;不宣称用户验收通过。

风险分级

L0:文档与元信息

  • 普通文档只做链接、格式、结构或 diff 检查。流程/授权等规则语义变更按实际影响验证路由、反例与合同,不因 Markdown 归为低风险;纯规则不运行产品 build/tsc/冒烟。

L1:局部低风险

  • TypeScript/TSX 触达时运行最窄可覆盖改动的 tsc。
  • 源码触达时运行一次 targeted ESLint;不先跑会被无关债务阻塞的全 package lint。
  • 纯视觉修改证明目标页面能加载、目标样式已生效;审美偏好交给用户确认。未改变交互或数据语义时,不增加全链路冒烟或多张截图。

L2:局部行为与 bugfix

  • 选择一份最贴近风险的定向测试。
  • 从真实用户路径、最近链路冒烟、assembled boundary test 中选择优先级最高且成本合理的一条功能证据;定向测试已组装真实边界并证明同一合同可兼任,不机械追加第二份。
  • Task Understanding 选择 reproduce 时,保留修前失败证据,并用同一入口和观察指标证明修后通过;昂贵端到端复现可以降到命中同一违约点的边界回放或定向失败测试。
  • Task Understanding 选择 skip-reproduction 时,核对其直接根因证据和预先声明的替代验证;只有替代证据能确定证明原合同恢复时才可通过,并披露没有修前失败基线。
  • 验证中发现根因、失败边界或判定条件仍不确定时,原跳过决定失效,返回 Task Understanding 补复现,不在 Validation 内猜测成功。

L3:跨边界与高影响

  • 纯规则用治理检查与场景审查;以下运行链路要求不适用。源码/类型/运行链路须 tsc、targeted lint 与定向测试。
  • 增加 assembled boundary test 或真实链路冒烟;两者都跑时分别证明不同风险。公开闭集 variant 同时读取合同变体传播验证。
  • 第三方框架/Factor/协议须用真实标准接口和上游执行形态命中触达合同;兼容接口、mock 或相邻能力不能替代,偏离另测。
  • 只有影响面确实扩大时才增加 package/full regression。
  • HTTP/API/transport 变更应在组装后的真实边界断言精确 contract,不只检查状态码或方法被调用。

L4:发布与不可逆变更

按目标项目的发布、迁移和恢复合同验证真实目标环境、产物身份、回退入口及已授权范围;项目没有可靠执行入口时不能宣称发布验证通过。

Read the full file on GitHub · 85 lines

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 Changed · +4 lines be38eceaf72c
  2. 1mo ago Changed · +2 lines a0c4d96a54b2
  3. 1mo ago Changed · -5 lines 4f8b43c97434
  4. 1mo ago Changed · +3 lines c1d4e9fa732d
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  7. 2mo ago Changed · +1 lines 5e4238423c6e
  8. 2mo ago First seen · 72 lines · 57 tokens per session scan A 0cef8906e9c6

Subscribe to this mod's changes

development-validation is a skill published in the GitHub repository Peiiii/nextclaw (263 stars, last pushed yesterday), licensed MIT. It adds 57 tokens to every session and 1,854 once invoked, about $0.0002 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.

Related

development-validation compared with skills from other repositories

development-validation next to 6 skills from other repositories
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