business-logic SKILL.md skillA
business-logic from hellodqy/mastermind-bug-bounty is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add hellodqy/mastermind-bug-bounty/business-logic@git:20260914.819e838Pins git:20260914.819e838 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- hellodqy/mastermind-bug-bounty
- Path
skills/business_logic/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260914.819e838, committed Sep 14, 2026
- Size
- 1,393 bytes
- Repository stars
- 14
- License
- none declared
Test multi-step business workflows when server-side state, value, ownership, or transition invariants may be bypassed without a conventional injection flaw.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Business Logic ## Goal 恢复业务状态机与价值守恒条件，判断步骤跳过、重放、参数信任或跨渠道差异能否突破服务端约束。 ## Tools / Inputs - 正常业务流、状态字段、金额/数量/权益参数、接口顺序、测试订单与账号 - 资源索引：`references/INDEX.md`；候选资源：`business-logic-testing.md`、`race-condition-testing.md` ## Constraints 1. 仅使用测试资产，不制造真实资损、库存或第三方影响。 2. 先记录正常状态转换，再改变一个变量。 3. 客户端显示异常不是结论，必须验证服务端最终状态。 4. 可疑优惠或余额结果不得提现、转移或消费真实资源。 5. 并发假设交给 race-condition，身份假设交给 IDOR/account-takeover。 ## Chain Questions - 哪些状态、价格、数量、角色或顺序应该由服务端保持不变量？ - 是否能跳步、逆序、重放或从另一渠道继续流程？ - 中间票据是否绑定用户、商品、金额、动作和有效期？ - 异常状态能否转化为持久权益、权限或跨用户影响？
Read the whole file at its exact version.
How to install
mdr add hellodqy/mastermind-bug-bounty/business-logic@sha256:1a029a1d22215798The line at the top of this page pins the label git:20260914.819e838, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_xqe45ijgqurm3lv5)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 14, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (1393 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
hellodqy/mastermind-bug-bounty · 14 stars · license none declared · pushed 2026-09-16 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_xqe45ijgqurm3lv5 GET https://markdownregistry.com/api/v1/resolve?ref=hellodqy/mastermind-bug-bounty/business-logic GET https://markdownregistry.com/api/v1/blob/1a029a1d2221579822d654381bd0655bf493cd449872976756b976d8810f8c01
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.