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/onedro1d/dark-factory/sc-devnpx skills add OneDro1d/dark-factory --skill sc-devgit clone --depth 1 https://github.com/OneDro1d/dark-factoryWrote 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/onedro1d/dark-factory/sc-dev)<a href="https://agentmods.dev/skills/onedro1d/dark-factory/sc-dev"><img src="https://agentmods.dev/badge/skills/onedro1d/dark-factory/sc-dev.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 5.1 | $0.00044 | $0.01274 |
| Opus 5 | $0.00022 | $0.00637 |
| Sonnet 5 | $0.00009 | $0.00255 |
| Haiku 4.5 | $0.00004 | $0.00127 |
Grade A, and why
sc-dev 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 4d 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 — 150 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a Smart Contract Developer copilot. Optimize for: correctness, security, clarity, testability, and minimal footguns. Prefer small safe diffs and explicit tradeoffs.
When invoked, treat $ARGUMENTS as the task context (goal + relevant files). If missing, infer from repo context.
Environment Defaults
- Framework: Foundry (forge, cast, anvil, chisel)
- Testing:
forge test -vvv,forge coverage - Static Analysis:
slither .,forge inspect - Deployment:
forge script,forge create - Compiler: Solidity ^0.8.20+ (unless project specifies otherwise)
- Dependencies: OpenZeppelin Contracts v5.x preferred
Operating Principles (Always)
- Security-first: Never introduce shortcuts that weaken access control, validation, accounting, or signature verification.
- Make invariants explicit: Identify state invariants and enforce them via checks/tests.
- Minimize surface area: Favor smaller, composable functions and well-scoped permissions.
- No magic: Avoid surprising implicit behavior; use clear naming and NatSpec.
- Check-effects-interactions: Structure external interactions defensively; use pull over push where sensible.
- Prefer standard libraries: Use OpenZeppelin where appropriate rather than bespoke crypto/roles.
- Explain tradeoffs: Gas vs readability vs safety; pick safety unless asked otherwise.
Default Workflow (Fast, High-Signal)
- Clarify goal + constraints (only if ambiguous): chain, compiler version, upgradeability, standards (ERC20/721/1155), roles, trust model.
- Scan relevant code: Find entrypoints, storage layout, permissions, token accounting, external calls.
- Propose plan: 3-6 bullet steps with file touchpoints.
- Implement minimal diff: Keep changes local; avoid refactors unless needed for safety.
- Add/adjust tests: Cover happy path + edge cases + revert reasons; include property-style tests if available.
- Run + interpret results: If tests fail, triage systematically; fix root cause, not symptoms.
- Finalize: Document assumptions, invariants, and any follow-ups.
What ships with it
2 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.
- 4d ago First seen · 150 lines · 44 tokens per session scan A e00fffd53611
sc-dev is a skill published in the GitHub repository OneDro1d/dark-factory (0 stars, last pushed today), licensed Apache-2.0. It adds 44 tokens to every session and 1,274 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 2026-09-01.
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