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 skills add moeru-ai/auv --skill domain-webgit clone --depth 1 https://github.com/moeru-ai/auvWrote 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/moeru-ai/auv/domain-web)<a href="https://agentmods.dev/skills/moeru-ai/auv/domain-web"><img src="https://agentmods.dev/badge/skills/moeru-ai/auv/domain-web/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/moeru-ai/auv/domain-web"><img src="https://agentmods.dev/badge/skills/moeru-ai/auv/domain-web.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 5.1 | $0.00087 | $0.01004 |
| Opus 5 | $0.00044 | $0.00502 |
| Sonnet 5 | $0.00017 | $0.00201 |
| Haiku 4.5 | $0.00009 | $0.00100 |
Grade A, and why
domain-web 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 9d 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 — 157 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Web Domain
Layer 3: Domain Constraints
Domain Constraints → Design Implications
| Domain Rule | Design Constraint | Rust Implication |
|---|---|---|
| Stateless HTTP | No request-local globals | State in extractors |
| Concurrency | Handle many connections | Async, Send + Sync |
| Latency SLA | Fast response | Efficient ownership |
| Security | Input validation | Type-safe extractors |
| Observability | Request tracing | tracing + tower layers |
Critical Constraints
Async by Default
RULE: Web handlers must not block
WHY: Block one task = block many requests
RUST: async/await, spawn_blocking for CPU work
State Management
RULE: Shared state must be thread-safe
WHY: Handlers run on any thread
RUST: Arc<T>, Arc<RwLock<T>> for mutable
Request Lifecycle
RULE: Resources live only for request duration
WHY: Memory management, no leaks
RUST: Extractors, proper ownership
Trace Down ↓
From constraints to design (Layer 2):
"Need shared application state"
↓ m07-concurrency: Use Arc for thread-safe sharing
↓ m02-resource: Arc<RwLock<T>> for mutable state
"Need request validation"
↓ m05-type-driven: Validated extractors
↓ m06-error-handling: IntoResponse for errors
"Need middleware stack"
↓ m12-lifecycle: Tower layers
↓ m04-zero-cost: Trait-based composition
Framework Comparison
| Framework | Style | Best For |
|---|---|---|
| axum | Functional, tower | Modern APIs |
| actix-web | Actor-based | High performance |
| warp | Filter composition | Composable APIs |
| rocket | Macro-driven | Rapid development |
Key Crates
| Purpose | Crate |
|---|---|
| HTTP server | axum, actix-web |
| HTTP client | reqwest |
| JSON | serde_json |
| Auth/JWT | jsonwebtoken |
| Session | tower-sessions |
| Database | sqlx, diesel |
| Middleware | tower |
Design Patterns
| Pattern | Purpose | Implementation |
|---|---|---|
| Extractors | Request parsing | State(db), Json(payload) |
| Error response | Unified errors | impl IntoResponse |
| Middleware | Cross-cutting | Tower layers |
| Shared state | App config | Arc<AppState> |
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.
- 9d ago First seen · 157 lines · 87 tokens per session scan A a7e6625d4ee7
domain-web is a skill published in the GitHub repository moeru-ai/auv (27 stars, last pushed today), licensed Apache-2.0. It adds 87 tokens to every session and 1,004 once invoked, about $0.0004 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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