programmable-v4-hook-builder

A tool for building, fixing, checking, submitting, or tracking complete Programmable Uniswap v4 Custom launches through a public V3 API. Uniswap is a cryptocurrency exchange protocol, and a v4 hook is custom code that changes how a pool behaves.

In plain words
What is it for?
Use it for hooks, tokens, multi-contract systems, apps, games, services, or combinations of these when working on a Programmable launch.
Why use it?
It covers the workflow needed when a Programmable launch involves connected contracts and other application pieces rather than a single file.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/programmablehq/programmable/programmable-v4-hook-builder
Any agent
npx skills add programmablehq/PROGRAMMABLE --skill programmable-v4-hook-builder
Clone the repo
git clone --depth 1 https://github.com/programmablehq/PROGRAMMABLE

Made for: Claude Code, Codex.

Per session 90 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,360 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00090 $0.01360
Opus 5 $0.00045 $0.00680
Sonnet 5 $0.00018 $0.00272
Haiku 4.5 $0.00009 $0.00136

Measured 2d ago against content hash 02f472b51425, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

programmable-v4-hook-builder 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 2d ago.

The scan reads SKILL.md. This mod also ships 10 executable files (scripts/application-input-contract.mjs, scripts/autonomous-admission-contract.mjs, scripts/cli-runtime.mjs, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/programmable-v4-hook-builder/SKILL.md · 112 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

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.

  1. 2d ago First seen · 112 lines · 90 tokens per session scan A 02f472b51425

Subscribe to this mod's changes

programmable-v4-hook-builder is a skill published in the GitHub repository programmablehq/PROGRAMMABLE (12 stars, last pushed 2d ago), with no licence file. It adds 90 tokens to every session and 1,360 once invoked, about $0.0005 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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