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 0xlayerghost/solidity-agent-kit --skill solidity-testinggit clone --depth 1 https://github.com/0xlayerghost/solidity-agent-kitWrote 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/0xlayerghost/solidity-agent-kit/solidity-testing)<a href="https://agentmods.dev/skills/0xlayerghost/solidity-agent-kit/solidity-testing"><img src="https://agentmods.dev/badge/skills/0xlayerghost/solidity-agent-kit/solidity-testing/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/0xlayerghost/solidity-agent-kit/solidity-testing"><img src="https://agentmods.dev/badge/skills/0xlayerghost/solidity-agent-kit/solidity-testing.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00057 | $0.00745 |
| Opus 5.5 | $0.00023 | $0.00298 |
| Sonnet 5.5 | $0.00011 | $0.00149 |
| Haiku 4.5 | $0.00006 | $0.00075 |
Grade A, and why
solidity-testing 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 1mo 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.
This is a copy
100% identical to solidity-testing — 1 line differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Testing Standards
Language Rule
- Always respond in the same language the user is using. If the user asks in Chinese, respond in Chinese. If in English, respond in English.
Test Organization
- One test contract per source contract:
MyToken.sol→MyToken.t.sol - File location: All tests in
test/directory - Naming:
test_<feature>_<scenario>for passing tests,testFail_<feature>_<scenario>for expected reverts- Example:
test_transfer_revertsWhenInsufficientBalance - Example:
test_stake_updatesBalanceCorrectly
- Example:
- Independence: Each test must run in isolation — use
setUp()for shared state, no cross-test dependencies - Filtering: Support
--match-testand--match-contractfor targeted runs
Coverage Requirements
Every core function must have tests covering:
| Scenario | What to verify |
|---|---|
| Happy path | Standard input → expected output, correct state changes |
| Permission checks | Unauthorized caller → vm.expectRevert with correct error |
| Boundary conditions | Zero values, max values (type(uint256).max), off-by-one |
| Failure scenarios | Every require / revert / custom error path |
| State changes | Storage updates, balance changes, event emissions (vm.expectEmit) |
| Edge cases | Empty arrays, duplicate calls, self-transfers |
Foundry Cheatcodes Quick Reference
| Cheatcode | Usage |
|---|---|
vm.prank(addr) |
Next call from addr |
vm.startPrank(addr) |
All calls from addr until vm.stopPrank() |
vm.warp(timestamp) |
Set block.timestamp |
vm.roll(blockNum) |
Set block.number |
vm.deal(addr, amount) |
Set ETH balance |
vm.expectRevert(error) |
Next call must revert with specific error |
vm.expectEmit(true,true,false,true) |
Verify event emission (topic checks) |
vm.record() / vm.accesses() |
Track storage reads/writes |
makeAddr("name") |
Create labeled address for readable traces |
Fuzz Testing Rules
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.
- 1mo ago First seen · 83 lines · 57 tokens per session scan A a9371413712f
solidity-testing is a skill published in the GitHub repository 0xlayerghost/solidity-agent-kit (4 stars, last pushed 27d ago), licensed MIT. It adds 57 tokens to every session and 745 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to solidity-testing, differing in 1 line, and is treated as a copy.
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