evm-atlas

evm-atlas is a skill for Claude Code, Codex from PaulRBerg/agent-skills. It costs 185 tokens per session (2,743 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.

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
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 185 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,743 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 $0.00185 $0.02743
Opus 5.5 $0.00074 $0.01097
Sonnet 5.5 $0.00037 $0.00549
Haiku 4.5 $0.00018 $0.00274

Measured 29d ago against content hash c504ff5fc852, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 29d ago.

The scan reads SKILL.md. This mod also ships 7 executable files (scripts/blockscout-detect-plan.sh, scripts/chain-lookup.sh, scripts/debank-collect.js, …), 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 · 177 lines

How it starts

The opening of the file, as written. The whole thing — 177 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.

Before you collect browser UI evidence, load chromium-browser. Follow its page-ownership, live-tool, and privacy contract. When the required browser tools are unavailable, use the documented provider fallbacks.

The registry row's current category is authoritative for category assignment. For an exact-zero native sweep or a question about category-specific fee behavior, resolve the target before reading chain categories. Do not infer a historical category or maintain a prose roster of target chains.

Scope and Authority

  • Match displayed names, numeric chain IDs, and aliases from references/generated/chain-aliases.json to the authoritative target-mainnet rows.
  • Resolve a chain with scripts/chain-lookup.sh <name|alias|slug|chain_id> first. It prints key=value lines, or one compact row with --json. Never cat a generated JSON file or print the full routemesh chains list. For other queries, use a jq -c selector with named fields, such as jq -c '.chains[] | {chainId, category}'.
  • 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.
  • A target row with defunct identifies a chain its operator shut down. Its history is final through defunct.finalStateBlock. Later empty blocks or missing provider history are not coverage gaps. Without finalStateBlock, the chain may still accept exit transactions such as withdrawals. In that case, treat it as live. State the shutdown in the result.
  • 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. If the chain is ambiguous, ask.
  • Never echo, interpolate, or log API-key values (ETHERSCAN_API_KEY, BLOCKSCOUT_API_KEY, RPC keys). Check presence without printing values: [ -n "$ETHERSCAN_API_KEY" ] && echo set || echo unset. Never put ${VAR:-...} or ${VAR:+...} expansions in printed output.
  • For Etherscan reads, use the official etherscan CLI with the resolved numeric --chain and --output json. Existing CLI authentication can use an environment key or saved login. Do not inspect credentials, pass --api-key, or run whoami, config, or login. CLI availability does not change provider priority or plan gates. Never call proxy eth_sendRawTransaction or submit contract verification through this read-only skill.
  • Keyless Blockscout is sunset (July 2026). Hosted *.blockscout.com instance subdomains also rate-limit keyless traffic. Route every Blockscout-hosted chain through the keyed https://api.blockscout.com/{chain_id} gateway. See references/explorers/blockscout-endpoints.md.
  • Every agent on the host shares DeBank's rate limit. Hold a scripts/debank-gate.py lease for any debank.com access, including a quick profile look. See the Global Queue in references/workflows/debank-portfolio.md.
  • An unreachable or erroring indexer is a coverage gap, never evidence of zero activity. Confirm in Chromium before you record an endpoint as down or blocked. State the verification method in results.

Read the full file on GitHub · 177 lines

Files

What ships with it

47 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. 29d ago Changed · +2 lines · +6 tokens per session c504ff5fc852
  2. 1mo ago Changed · +5 lines dff76ffd79e5
  3. 1mo ago Changed · +4 lines be57e70c3da6
  4. 1mo ago Changed · +26 lines · +2 tokens per session cb4f01d47b25
  5. 1mo ago Changed · +3 lines c221beeac320
  6. 1mo ago Changed · +6 lines · +19 tokens per session 1f484a21e38a
  7. 1mo ago Changed · +4 lines 56b56f9d2d66
  8. 1mo ago Changed · +4 lines e4a5554de3ee
  9. 2mo ago Changed · +1 lines e1f1bcf440f0
  10. 2mo ago First seen · 122 lines · 158 tokens per session scan A eef0cd0de619

Subscribe to this mod's changes

evm-atlas is a skill published in the GitHub repository PaulRBerg/agent-skills (104 stars, last pushed 2d ago), licensed MIT. It adds 185 tokens to every session and 2,743 once invoked, about $0.0007 per session on Opus 5.5. 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.

Related

evm-atlas compared with skills from other repositories

evm-atlas next to 6 skills from other repositories
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devtools-event-clientTanStack/devtoolsSkill512yesterdayMITA79Claude Code, Codex