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 Uniswap/uniswap-ai --skill v4-hook-generatorgit clone --depth 1 https://github.com/Uniswap/uniswap-aiWrote 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/uniswap/uniswap-ai/v4-hook-generator)<a href="https://agentmods.dev/skills/uniswap/uniswap-ai/v4-hook-generator"><img src="https://agentmods.dev/badge/skills/uniswap/uniswap-ai/v4-hook-generator/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/uniswap/uniswap-ai/v4-hook-generator"><img src="https://agentmods.dev/badge/skills/uniswap/uniswap-ai/v4-hook-generator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk warn
- NVIDIA SkillSpector warn
SkillSpector: 7 findings, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Memory Poisoning · line 95 Skill manipulates agent memory, state, or stored context. Memory corruption can alter personality, override safety rules, or cause unpredictable behavior.Fix: Protect agent memory and state from modification by untrusted content. Use read-only memory for critical instructions and validate all state changes.
- medium Excessive Agency · line 5 Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
- medium Prompt Injection · line 86 Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
- medium Prompt Injection · line 97 Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
- medium Prompt Injection · line 101 Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
- medium Prompt Injection · line 113 Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
- medium Prompt Injection · line 136 Large whitespace padding was detected (a block of blank lines or a long run of spaces). This can push injected instructions below or to the right of the visible area so a human reviewer never sees them while the agent still reads them. Manual review of the hidden content is recommended.Fix: Remove the large whitespace padding (blank-line blocks or long space runs) and review any content hidden below or to the right of it. Keep skill files compact and reviewable so no instructions can be
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 | $0.00049 | $0.03670 |
| Opus 5 | $0.00024 | $0.01835 |
| Sonnet 5 | $0.00010 | $0.00734 |
| Haiku 4.5 | $0.00005 | $0.00367 |
Grade A, and why
v4-hook-generator 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 11d 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 — 310 lines — stays where its author put it; the contents beside it link to each section on GitHub.
v4 Hook Generator
Generate Uniswap v4 hook contracts via the OpenZeppelin Contracts Wizard MCP tool. This skill guides you through selecting the right hook type, configuring permissions and utilities, assembling the canonical MCP JSON, and invoking the MCP tool to produce ready-to-compile Solidity code.
Security companion: Generated hook code touches fund-handling contracts. Always apply the
v4-security-foundationsskill immediately after generation to audit permissions, delta accounting, and access control before deploying to any network.
When to Use This Skill
Use this skill when you need to:
- Scaffold a new Uniswap v4 hook contract from scratch
- Select the right base hook type for a specific use case (fees, MEV protection, oracles, etc.)
- Configure hook permissions, utility libraries, shares, and access control
- Produce the canonical MCP tool call JSON to invoke the OpenZeppelin Contracts Wizard
- Understand trade-offs between hook configuration options before committing to an implementation
Prerequisite / companion skill: v4-security-foundations — run it before writing custom logic
and again before deployment. Hook misconfiguration can drain user funds.
Hook Type Decision Table
Choose the base hook type that matches your primary goal. If your hook has multiple goals, choose the type that covers the most critical concern and layer additional logic on top.
| Goal | Use Hook |
|---|---|
| Custom swap logic | BaseHook |
| Async/delayed swaps | BaseAsyncSwap |
| Hook-owned liquidity | BaseCustomAccounting |
| Custom curve | BaseCustomCurve |
| Dynamic LP fees | BaseDynamicFee |
| Dynamic swap fees | BaseOverrideFee |
| Post-swap fees | BaseDynamicAfterFee |
| Fixed hook fees | BaseHookFee |
| MEV protection | AntiSandwichHook |
| JIT protection | LiquidityPenaltyHook |
| Limit orders | LimitOrderHook |
| Yield on idle | ReHypothecationHook |
| Oracle | BaseOracleHook |
| V3-compatible oracle | OracleHookWithV3Adapters |
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.
- 11d ago First seen · 310 lines · 49 tokens per session scan A 441ef1b497fa
v4-hook-generator is a skill published in the GitHub repository Uniswap/uniswap-ai (230 stars, last pushed today), licensed MIT. It adds 49 tokens to every session and 3,670 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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