race-condition SKILL.md skillA
race-condition 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/race-condition@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/race_condition/SKILL.md- Versions recorded
- 4
- Latest version
- git:20260914.819e838, committed Sep 14, 2026
- First version recorded
- Jun 2, 2026
- Size
- 1,115 bytes
- Repository stars
- 14
- License
- none declared
Identify business actions where concurrent execution can multiply value or bypass limits.
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
# Race Condition ## Goal 判断某个业务动作是否因并发导致重复领取、重复消费、余额/库存/权限状态错乱。 ## Tools / Inputs - 测试账号、优惠券/积分/订单/提现/库存/签到接口 - 资源索引：`references/INDEX.md`；候选资源：`race-condition-testing.md`；需要通用业务分类时再读 `bug_classes.md` ## Constraints 1. 只用测试账号和可回滚/无害业务对象。 2. 不对真实资金、真实库存、真实用户造成影响。 3. 先证明单次正常行为，再比较并发差异。 4. 成功必须量化多拿了什么或绕过了什么限制。 5. 新状态或凭据变化继续回注攻击面。 ## Chain Questions - 这个动作是否有“只能一次”的业务语义？ - 并发前后余额、库存、权益、状态是否不一致？ - 竞态结果能不能解锁更高权限或二次利用？ - 是否已经足够证明经济/权限影响？
Read the whole file at its exact version.
How to install
mdr add hellodqy/mastermind-bug-bounty/race-condition@sha256:a1a4c37132dee384The 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_ddwoyzk7szb3s22g)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Jun 2, 2026 and Sep 14, 2026, about one every 35 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260914.819e838 latest | 2026-09-14 | 819e838 | 1,115 B | A | view · diff |
| git:20260709.c284c01 | 2026-07-09 | c284c01 | 1,051 B | A | view · diff |
| git:20260709.a882698 | 2026-07-09 | a882698 | 1,017 B | A | view · diff |
| git:20260602.95e27a7 | 2026-06-02 | 95e27a7 | 13,159 B | A | view |
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 (1115 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_ddwoyzk7szb3s22g GET https://markdownregistry.com/api/v1/resolve?ref=hellodqy/mastermind-bug-bounty/race-condition GET https://markdownregistry.com/api/v1/blob/a1a4c37132dee384120c0762e9d35d480849a3ed5b70aa325b0a390a983aa376
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.
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