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@v4.2.0Pins v4.2.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- roedyrustam/vibes-plug
- Path
skills/formal-spec-z3-verifier/SKILL.md- Versions recorded
- 2
- Latest version
- v4.2.0, committed Oct 3, 2026
- First version recorded
- Oct 3, 2026
- Size
- 10,812 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 Connects and orchestrates with `brainstorming`, `zero-to-prod-orchestrator`, `saas-billing`, `doku-payment-gateway`, `authentication-identity-expert`, and `database-orm-expert` to mathematically prove software invariants, state transitions, and authorization policies using formal SMT solvers before writing production code. ### 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. - Verifying complex RBAC/ABAC permission rules to guarantee that privilege escalation is mathematically impossible. …
Read the whole file at its exact version.
How to install
mdr add roedyrustam/vibes-plug/formal-spec-z3-verifier@sha256:a21220bccb774ff3The line at the top of this page pins the label v4.2.0, 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_5x7l6yiap4xcvbir)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, all committed on Oct 3, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v4.2.0 latest | 2026-10-03 | d8cca2a | 10,812 B | A | view · diff |
| v4.1.0 | 2026-10-03 | 47606ed | 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 (10812 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_5x7l6yiap4xcvbir GET https://markdownregistry.com/api/v1/resolve?ref=roedyrustam/vibes-plug/formal-spec-z3-verifier GET https://markdownregistry.com/api/v1/blob/a21220bccb774ff3731cff22a364a964241d24fd29fdccc6ef8b560551aeab0a
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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