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evm-atlas

evm-atlas is a skill for Claude Code, Codex from PaulRBerg/agent-skills. It costs 158 tokens per session (2,080 once invoked), scanned A, original, MIT.

A read-only research workflow for Ethereum Virtual Machine networks, including supported chains, accounts, transactions, tokens, bridges, and decentralized exchanges.

In plain words
What is it for?
Use it to check chain IDs, balances, holdings, transfers, transaction history, funding origins, RPC results, bridge records, and historical exchange data.
Why use it?
It gathers evidence from approved network and explorer sources without signing messages or broadcasting transactions.

Skill for Claude CodeCodex

Written for Claude Code and Codex: argument-hint in frontmatter, but also agents/openai.yaml present.

not rated 70repo changed 2d ago A scan SkillSpector: warn 158 tokens original MIT

Good fit Use it to check chain IDs, balances, holdings, transfers, transaction history, funding origins, RPC results, bridge records, and historical exchange data.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/paulrberg/agent-skills/evm-atlas
View source ↗ PaulRBerg/agent-skills
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.

Any agent
npx skills add PaulRBerg/agent-skills --skill evm-atlas
Clone the repo
git clone --depth 1 https://github.com/PaulRBerg/agent-skills

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for evm-atlas

README.md
[![agentmods](https://agentmods.dev/badge/skills/paulrberg/agent-skills/evm-atlas/github.svg)](https://agentmods.dev/skills/paulrberg/agent-skills/evm-atlas)
Your own site
<a href="https://agentmods.dev/skills/paulrberg/agent-skills/evm-atlas"><img src="https://agentmods.dev/badge/skills/paulrberg/agent-skills/evm-atlas/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.

agentmods 80×15 button for evm-atlas

Your own site · 80×15
<a href="https://agentmods.dev/skills/paulrberg/agent-skills/evm-atlas"><img src="https://agentmods.dev/badge/skills/paulrberg/agent-skills/evm-atlas.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 158 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,080 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

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 →

  • medium Data Exfiltration · line 44
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
How audits are shown
Origin original 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 5.1 $0.00158 $0.02080
Opus 5 $0.00079 $0.01040
Sonnet 5 $0.00032 $0.00416
Haiku 4.5 $0.00016 $0.00208

Measured 2d ago against content hash e1f1bcf440f0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

evm-atlas 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 7 executable files (scripts/blockscout-detect-plan.sh, scripts/check-conformance-fixtures.sh, scripts/etherscan-detect-plan.sh, …), 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/evm-atlas/SKILL.md · 123 lines

How it starts

The opening of the file, as written. The whole thing — 123 lines — stays where its author put it; the contents beside it link to each section on GitHub.

EVM Atlas

This skill is coordination-exempt: skip the ai-coord gate for its declared work.

Resolve and query only the target mainnets in references/generated/target-mainnets.json, under a strict read-only boundary.

Scope and Authority

  • Match displayed names, numeric chain IDs, and aliases from references/generated/chain-aliases.json to the authoritative target-mainnet rows.
  • If a chain is absent, do not route through another provider, web search, Chainlist, or an unlisted RPC to work around scope. Ask for a feature request at https://github.com/PaulRBerg/agent-skills.
  • Own every discrete read and bounded live subscription handed off by cli-cast, including chain, block, fee, nonce, eth_call, eth_estimateGas, transaction, receipt, log, balance, code, storage, proof, and ENS queries. Complete the read here even when its result will prepare, simulate, or verify later state-changing work.
  • Never sign messages, submit signatures, execute bridge steps, or broadcast transactions. Route state-changing Cast work to cli-cast.
  • DEX support is historical and evidence-only. Do not discover live quotes, construct or simulate new trades, prepare approvals or permits, submit orders, administer protocols, interpret CoW AMM positions, handle standalone 1inch limit orders, or assign semantics to arbitrary Uniswap v4 hooks.
  • Do not default to Ethereum. Infer from explicit chain context and unambiguous chain-specific tokens; ask when ambiguous.
  • Never echo, interpolate, or log API-key values (ETHERSCAN_API_KEY, BLOCKSCOUT_API_KEY, RPC keys). Check presence value-free with [ -n "$ETHERSCAN_API_KEY" ] && echo set || echo unset; never put ${VAR:-...} or ${VAR:+...} expansions in printed output.
  • Keyless Blockscout is sunset (July 2026) and hosted *.blockscout.com instance subdomains also rate-limit keyless traffic, so route every Blockscout-hosted chain through the keyed https://api.blockscout.com/{chain_id} gateway. See references/explorers/blockscout-endpoints.md.
  • An unreachable or erroring indexer is a coverage gap, never evidence of zero activity. Confirm in Chromium before recording an endpoint as down or blocked, and state the verification method in results.

Read the full file on GitHub · 123 lines

Files

What ships with it

42 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.

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 Changed · +1 lines e1f1bcf440f0
  2. 4d ago Changed eef0cd0de619
  3. 12d ago First seen · 122 lines · 158 tokens per session scan A 3d018f64a159

Subscribe to this mod's changes

evm-atlas is a skill published in the GitHub repository PaulRBerg/agent-skills (70 stars, last pushed yesterday), licensed MIT. It adds 158 tokens to every session and 2,080 once invoked, about $0.0008 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.

ResearchWeb3 and blockchainagent-skillsai-agents
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