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Agent skill

Alchemy Core Workflow B

by jeremylongshore in jeremylongshore/tons-of-skills-marketplace

Build an NFT discovery workflow with Alchemy NFT API v3 and isolate typed on-chain reads through viem.

MITAuto-check passedBusiness, Finance & HR

Install Alchemy Core Workflow B

skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill alchemy-core-workflow-b -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install jeremylongshore/tons-of-skills-marketplace alchemy-core-workflow-b --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/.curated/alchemy-core-workflow-b .claude/skills/alchemy-core-workflow-b && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
alchemy-core-workflow-b
GitHub stars
2.8k
Token cost
~1.2k tokens
SKILL.md length
538 words
Files
2 (incl. references)
Skills in repo
3,342
Repo updated
First seen
Licence
MIT

At a glance

Build an NFT discovery workflow with Alchemy NFT API v3 and isolate typed on-chain reads through viem.

  • Works in 6 steps: Choose owner discovery, collection… → Define the response schema, spam/filter… → Fetch through a narrow NFT API v3… → …
  • Creating collection explorers
  • SKILL.md covers Overview, Prerequisites, Current Contract and Authentication, plus 8 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Alchemy Core Workflow B is an agent skill from jeremylongshore/tons-of-skills-marketplace. Build an NFT discovery workflow with Alchemy NFT API v3 and isolate typed on-chain reads through viem. Use when creating collection explorers or ownership checks. Trigger with "Alchemy NFT API", "NFT collection explorer", or "read an NFT contract".

Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/official-docs.md`). Compatibility notes: Designed for Claude Code; live Alchemy access requires network access, an appropriate credential, account capacity, and explicit approval

It sits in Business, Finance & HR, covering Crypto and DeFi analysis and Smart contracts. It works with viem and wagmi. The repository describes itself as: Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com. The licence is MIT.

When your agent uses it

  • Creating collection explorers
  • Ownership checks
  • With Alchemy NFT API
  • NFT collection explorer

Example prompts

  • “Alchemy NFT API”
  • “NFT collection explorer”
  • “read an NFT contract”
  • “/alchemy-core-workflow-b”

Requirements

  • Compatibility (from SKILL.md): Designed for Claude Code; live Alchemy access requires network access, an appropriate credential, account capacity, and explicit approval
  • Pre-approved tools (allowed-tools): Read, Glob, Grep, Write, Edit

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Choose owner discovery, collection enumeration, metadata lookup, or contract-state verification and confirm the endpoint's current chain…
  2. Define the response schema, spam/filter policy, metadata and media fallbacks, page-key handling, maximum pages, and freshness label.
  3. Fetch through a narrow NFT API v3 adapter, validate every page, and retain provenance for cached versus original media without executing…
  4. For on-chain verification, create a viem public client on the same declared chain, use a reviewed minimal ABI, and record the block context.
  5. Reconcile indexer output with contract reads only where the product requires it; represent disagreement and reorganization risk explicitly.
  6. Test empty, paginated, malformed metadata, spam-filtered, unsupported-chain, and indexer-versus-chain disagreement before release.

What it can do on your machine

Read from SKILL.md and the folder at commit cfae287. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Glob
    • Grep
    • Write
    • Edit

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

  • Compatibility

    Designed for Claude Code; live Alchemy access requires network access, an appropriate credential, account capacity, and explicit approval

    From compatibility in the SKILL.md frontmatter.

Context cost

Alchemy Core Workflow B loads about 1.2k tokens when it runs, and up to ~2k if it reads all its reference files. Until then it costs about 68 tokens; SKILL.md has 538 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~68
When it runs · the whole SKILL.md, loaded when a task matches
~1.2k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from jeremylongshore/tons-of-skills-marketplace at commit cfae287, republished under its MIT licence (© jeremylongshore). 538 words, ~1,237 tokens.

Download SKILL.mdSave it as .claude/skills/alchemy-core-workflow-b/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
alchemy-core-workflow-b
description
Build an NFT discovery workflow with Alchemy NFT API v3 and isolate typed on-chain reads through viem. Use when creating collection explorers or ownership checks. Trigger with "Alchemy NFT API", "NFT collection explorer", or "read an NFT contract".
allowed-tools
Read, Glob, Grep, Write, Edit
compatibility
Designed for Claude Code; live Alchemy access requires network access, an appropriate credential, account capacity, and explicit approval
argument-hint
<owner-or-contract> <network> <query-purpose>
version
2.0.0
license
MIT
author
Jeremy Longshore <jeremy@intentsolutions.io>
tags
saas, alchemy, nft, viem
model
inherit
effort
high

Alchemy NFT Discovery and Contract Read Workflow

Overview

Build an NFT discovery workflow with Alchemy NFT API v3 and isolate typed on-chain reads through viem. This workflow produces a reviewable artifact and negative-path evidence before any live side effect.

Prerequisites

  • Current first-party Alchemy documentation for the selected product, chain, feature, client, authentication method, limit, and lifecycle.
  • Named product, application, security, data/privacy, budget, release, and operations owners appropriate to the requested scope.
  • Synthetic or approved non-production fixtures, a credential canary, explicit success criteria, and a tested rollback boundary.

Current Contract

NFT API responses, metadata availability, spam classification, pagination, and supported networks are endpoint-specific. NFT indexing is not chain finality, and cached media is not proof of ownership. Contract state reads use the declared viem chain and ABI; ownership-sensitive decisions require an explicit block/finality policy.

Authentication

Use a scoped application API key in the server boundary. Validate owner and contract addresses before lookup. Treat queried owner addresses, collections, and behavioral analytics under the product's privacy and retention policy.

Instructions

  1. Choose owner discovery, collection enumeration, metadata lookup, or contract-state verification and confirm the endpoint's current chain support.
  2. Define the response schema, spam/filter policy, metadata and media fallbacks, page-key handling, maximum pages, and freshness label.
  3. Fetch through a narrow NFT API v3 adapter, validate every page, and retain provenance for cached versus original media without executing remote media content.
  4. For on-chain verification, create a viem public client on the same declared chain, use a reviewed minimal ABI, and record the block context.
  5. Reconcile indexer output with contract reads only where the product requires it; represent disagreement and reorganization risk explicitly.
  6. Test empty, paginated, malformed metadata, spam-filtered, unsupported-chain, and indexer-versus-chain disagreement before release.

Tool Discipline

Use Read, Glob, and Grep to inspect current documentation, configuration, code, fixtures, and evidence. Use Write and Edit only for approved repository artifacts. Skill invocation alone does not authorize network access, credentials, wallet addresses, customer data, plan changes, spend, key creation or rotation, webhook changes, deployment, replay, transaction construction, signing, broadcast, or deletion.

Show full SKILL.md (199 more words)Show less

Approval Boundaries

Product/privacy owners approve address use and analytics. Security approves remote-media handling and ABI/source provenance. Transactions, approvals, mints, or marketplace writes are outside this read-only workflow.

Error Handling

  • Do not infer ownership from an image URL or stale cached metadata.
  • Do not silently exclude assets without recording the configured spam/filter policy.
  • If the NFT index and contract read disagree, show an indeterminate state and reconcile at an approved block/finality point.

Output

Return the query purpose, chain/endpoint proof, schema and pagination contract, filter policy, media safety rules, optional viem read evidence, disagreement behavior, tests, and rollback. Mark assumptions, observations, source dates, environment-specific behavior, owners, and unresolved gaps explicitly.

Examples

  • Page through a public test collection and retain the next-page token until exhaustion while labeling cached media provenance.
  • Verify an ownership-sensitive result with a typed ownerOf read at a recorded block and surface disagreement instead of choosing one source silently.

Validation

Exercise and record expected and observed results for:

  • empty collection
  • multi-page owner
  • missing metadata
  • unsafe media URL
  • unsupported network
  • indexer/contract disagreement

Resources

  • Current first-party evidence map — recheck dated Alchemy sources before execution.
  • Treat observed account, application, network, indexer, chain, or provider behavior as environment-specific evidence, never a universal guarantee.

© jeremylongshore, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (references) in skills/.curated/alchemy-core-workflow-b of jeremylongshore/tons-of-skills-marketplace.

  • SKILL.md
  • references/official-docs.md

Open the folder on GitHubat commit cfae287

Compare with similar skills

Alchemy Core Workflow B next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Alchemy Core Workflow B compared with similar skills
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Oracle Flashloan Analysisquillai-network/quillshield_skills130—~2.8kAutomated safety check: PassMIT
Starknet Identityinternet-court/internet-court-skill6.6k1 repos~2.7kAutomated safety check: NotesApache-2.0

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Works with

Categories

Questions about Alchemy Core Workflow B

What does Alchemy Core Workflow B do?

Build an NFT discovery workflow with Alchemy NFT API v3 and isolate typed on-chain reads through viem. Alchemy Core Workflow B is an agent skill from jeremylongshore/tons-of-skills-marketplace. Build an NFT discovery workflow with Alchemy NFT API v3 and isolate typed on-chain reads through viem.

When should I use Alchemy Core Workflow B?

Alchemy Core Workflow B fits situations like: creating collection explorers; ownership checks; with Alchemy NFT API; NFT collection explorer.

How do I install Alchemy Core Workflow B in Claude Code?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill alchemy-core-workflow-b -a claude-code`. Or copy the skill folder (skills/.curated/alchemy-core-workflow-b in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/alchemy-core-workflow-b in your project. Claude Code loads it when a task matches its description.

How do I install Alchemy Core Workflow B in Codex?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill alchemy-core-workflow-b -a codex`. Or copy the skill folder (skills/.curated/alchemy-core-workflow-b in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/alchemy-core-workflow-b in your project. Codex loads it when a task matches its description.

Can I use Alchemy Core Workflow B in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill alchemy-core-workflow-b -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/alchemy-core-workflow-b, .gemini/skills/alchemy-core-workflow-b, .github/skills/alchemy-core-workflow-b and .opencode/skills/alchemy-core-workflow-b in your project.

What does Alchemy Core Workflow B need to run?

SKILL.md names no scripts, command-line tools or credentials: Alchemy Core Workflow B is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Glob, Grep, Write, Edit. Compatibility (from SKILL.md): Designed for Claude Code; live Alchemy access requires network access, an appropriate credential, account capacity, and explicit approval.

Does Alchemy Core Workflow B access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Alchemy Core Workflow B safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Alchemy Core Workflow B use?

Alchemy Core Workflow B is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Alchemy Core Workflow B use?

About 1.2k tokens (SKILL.md is roughly 4.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 787 tokens, read only when the agent opens those files.

What are the alternatives to Alchemy Core Workflow B?

Skills that share tags, products or a category with Alchemy Core Workflow B: Okx Cex Earn (okx/agent-skills, 187 stars), Onchain Pay Open API (npc-live/clawfirm, 156 stars), Aptos Explorer Urls (aptos-labs/explorer, 124 stars) and Oracle Flashloan Analysis (quillai-network/quillshield_skills, 130 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Alchemy Core Workflow B?

jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,827 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 10, 2026.

Source: jeremylongshore/tons-of-skills-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.