Mastermind Prototype
Build a fast, throwaway spike to learn — validate a risky assumption or an unclear approach quickly, then rebuild it properly. Use when the right design is genuinely unknown and reality will teach you faster than planning. Explicitly throwaway — the spike does not ship.
Install
$ agentstack add skill-mehrad-dm-mastermind-mastermind-prototype ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Links to your public security report.[](https://agentstack.voostack.com/security/report/skill-mehrad-dm-mastermind-mastermind-prototype) Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
MasterMind — Prototype
Tight feedback loops beat big plans when the path is unclear (~/.mastermind/engineering/core/agent-loop.md, mindset.md → design it twice). A spike buys knowledge cheaply — as long as you don't mistake it for the product.
Method
- Name the question — the ONE risky unknown this spike will answer ("can the Worker stream a >20 MB
file?", "does this library handle X?"). If there's no question, you don't need a prototype.
- Build the smallest thing that answers it — hard-code, skip error handling, skip tests, skip
polish. Speed over quality; it's throwaway.
- Extract the learning — what did reality teach? Write down the answer and any surprises.
- Throw it away and rebuild to standard — the real version gets the full loop (design, rigor,
tests, review). Do not ship the spike.
Rules
Time-box it. Keep it isolated (a scratch branch/dir) so it can't leak into production. The deliverable is the learning, not the code.
Output
The answer to the question + the surprises, and a clear "now build it properly" recommendation (or a "don't build it — here's why").
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: mehrad-dm
- Source: mehrad-dm/mastermind
- License: MIT
- Homepage: https://mastermind.mehrad.me
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.