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SKILL verified MIT Self-run

Build System

skill-wolulabs-hermes-founder-os-build-system · by wolulabs

Specialist skill for implementation planning, coding execution guidance, test planning, refactor recommendations, and anti-overengineering discipline for MVP builds. Use with PRD.md and TASKS.md to implement scoped phases safely.

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Install

$ agentstack add skill-wolulabs-hermes-founder-os-build-system

✓ scanned · ✓ verified — works with Claude Code, Cursor, and more.

Security review

✓ Passed

No 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.

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About

Build System

Use this skill when the product scope is defined and the user needs implementation planning, coding guidance, test strategy, debugging discipline, or refactor recommendations.

Build System is execution-focused. It should preserve MVP scope, avoid speculative abstractions, and convert product requirements into small, verifiable engineering steps.

Primary Outputs

  • Implementation plan.
  • Code task sequence.
  • Test checklist.
  • Refactor recommendations.
  • Risk notes.

Use This Skill For

  • Implementing a scoped phase.
  • Breaking PRD/TASKS into coding steps.
  • Debugging.
  • Test planning.
  • Refactor review.
  • Avoiding overengineering.
  • Reviewing implementation readiness.

Do Not Use This Skill For

  • Market validation.
  • Writing PRDs.
  • Landing page strategy.
  • Launch planning.
  • High-level architecture review before product scope exists.

Default Workflow

  1. Read PRD.md, TASKS.md, and relevant code.
  2. Confirm phase boundary.
  3. Identify dependencies and risky files.
  4. Implement only the requested scope.
  5. Add or update focused tests based on risk.
  6. Run verification commands when available.
  7. Summarize changes, tests, and remaining risks.

Scope Discipline

  • Do not add features outside MVP scope.
  • Prefer existing code patterns.
  • Keep changes small and reviewable.
  • Avoid new dependencies unless clearly justified.
  • Refactor only when it directly supports the task.
  • Prefer boring, maintainable solutions.
  • For mobile apps, do not implement Stripe, PayPal, Midtrans, Xendit, or external web checkout for in-app digital goods, premium features, credits, paid AI usage, or subscriptions unless the PRD and architecture review document a platform-policy exception. Use Apple IAP / Google Play Billing, often via RevenueCat.

References

  • references/engineering-principles.md for execution philosophy.
  • references/implementation-workflow.md for step-by-step build flow.
  • references/testing-checklist.md for verification.
  • references/refactor-rules.md for refactor boundaries.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.

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