Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/vidyfoo/antigravity-skill-engine/architectingnpx skills add VidyFoo/antigravity-skill-engine --skill architectinggit clone --depth 1 https://github.com/VidyFoo/antigravity-skill-engineWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/vidyfoo/antigravity-skill-engine/architecting)<a href="https://agentmods.dev/skills/vidyfoo/antigravity-skill-engine/architecting"><img src="https://agentmods.dev/badge/skills/vidyfoo/antigravity-skill-engine/architecting.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00049 | $0.00681 |
| Opus 5 | $0.00024 | $0.00341 |
| Sonnet 5 | $0.00010 | $0.00136 |
| Haiku 4.5 | $0.00005 | $0.00068 |
Grade A, and why
architecting scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Architect Feature
Role: Oversee the entire lifecycle of a Feature—from 0 to 1 to N—ensuring architectural consistency and UX integrity.
When to use this skill
- Creating a new feature from scratch
- Extending an existing feature with new capabilities
- Implementing code based on a finalized design spec
How to use it
Choose a mode based on your intent:
| Mode | Trigger keywords | Scenario |
|---|---|---|
| DESIGN | new feature, 设计 | Create a brand-new feature directory from scratch |
| EXTEND | 扩展, add capability | Add sub-capabilities to an existing feature |
| BUILD | implement, 实现 | Code an already-designed spec |
DESIGN Mode (从 0 到 1)
- Context Check: Read
src/features/to avoid reinventing the wheel. - KISS Check: Really need a new directory? If < 3 files, consider
shared. - Generate Spec: Use
resources/spec-template.md. - Tech Decisions: Define dependencies and Schema.
Output: src/features/{name}/docs/spec.md
EXTEND Mode (从 1 到 N)
- Locate Host: Identify the target Feature.
- Architecture Conformance: Read the host's
spec.md, follow its design philosophy. - Incremental Design: Append an "Extension Section" instead of creating new docs.
Output: Updated src/features/{name}/docs/spec.md or core code.
BUILD Mode (编码实现)
- Read Contract: Always read
spec.mdfirst for scope. - Quality Gate: Establish "Type-First" (Zod Schema -> TypeScript Type).
- Layered Implementation:
- L1 Core: Schema & Service (no UI, pure logic)
- L2 UI: Components (no business logic)
- L3 Integration: Pages & Routing
- Self-Verify:
npm run type-checkandnpm run lintmust pass.
Resources
| Resource | Purpose |
|---|---|
| spec-template.md | Standardized design doc template |
| kiss-checklist.md | Anti-over-engineering checklist |
| anti-patterns.md | Architecture anti-pattern warnings |
What ships with it
5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 3d ago First seen · 78 lines · 49 tokens per session scan A a66187e38348
architecting is a skill published in the GitHub repository VidyFoo/antigravity-skill-engine (12 stars, last pushed 7mo ago), licensed MIT. It adds 49 tokens to every session and 681 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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