formal-spec-z3-verifier SKILL.md skillA
formal-spec-z3-verifier from roedyrustam/vibes-plug is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add roedyrustam/vibes-plug/formal-spec-z3-verifier@v4.4.2Pins v4.4.2 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- roedyrustam/vibes-plug
- Path
.cursor/skills/formal-spec-z3-verifier/SKILL.md- Versions recorded
- 3
- Latest version
- v4.4.2, committed Oct 21, 2026
- First version recorded
- Oct 20, 2026
- Size
- 9,832 bytes
- Repository stars
- 122
- License
- MIT
Expert guide for mathematical formal verification, SMT solver constraints (Z3, Dafny, TLA+), invariant theorem proving for FinTech billing state machines, RBAC/ABAC authorization, and zero-violation architecture / Panduan ahli verifikasi formal matematis, SMT solver (Z3, Dafny, TLA+), pembuktian invarian state machine billing FinTech, otorisasi RBAC/ABAC, dan arsitektur zero-violation.
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
# formal-spec-z3-verifier — vibes-plug Skill [English](#english) | [Bahasa Indonesia](#bahasa-indonesia) --- <a name="english"></a> ## English ### Orchestration & Integration - **FinTech & SaaS Billing**: `saas-billing`, `doku-payment-gateway`, `payment-gateway-expert` - **Identity & Authorization Proofs**: `authentication-identity-expert`, `zero-trust-secret-vault` - **Database & Constraint Enforcement**: `database-orm-expert`, `spec-driven-development-expert` - **Testing & Mutation Verification**: `property-mutation-testing-expert`, `autonomous-tdd-debugger`, `anti-slop` - **Lifecycle & Governance**: `brainstorming`, `zero-to-prod-orchestrator`, `session-memory-manager` ### Description Production guide for applying formal methods, mathematical specifications, and SMT (Satisfiability Modulo Theories) solvers (Z3, Dafny, TLA+) to mission-critical software systems. Proves zero-invariant violation across double-entry ledger bookkeeping, billing subscription state machines, multi-tenant isolation boundaries, and cryptographic key lifecycle models. ### Trigger Conditions Activate this skill when: - Designing financial ledgers, wallets, or payment gateway state transition graphs. …
Read the whole file at its exact version.
How to install
mdr add roedyrustam/vibes-plug/formal-spec-z3-verifier@sha256:be2c13f956e85f2aThe line at the top of this page pins the label v4.4.2, 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_goassoto4rfwhflc)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Oct 20, 2026 and Oct 21, 2026, more than one a day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v4.4.2 latest | 2026-10-21 | c60c6e2 | 9,832 B | A | view · diff |
| v4.4.1 | 2026-10-20 | 0df6770 | 10,813 B | A | view · diff |
| v4.3.0 | 2026-10-20 | 42a8f06 | 10,812 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 (9832 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
roedyrustam/vibes-plug · 122 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_goassoto4rfwhflc GET https://markdownregistry.com/api/v1/resolve?ref=roedyrustam/vibes-plug/formal-spec-z3-verifier GET https://markdownregistry.com/api/v1/blob/be2c13f956e85f2a10dbdcf39842061b7e1128d36aa6047a7b9bdada41943e8c
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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