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 agentmods add skills/obolnetwork/obol-stack/whynpx skills add ObolNetwork/obol-stack --skill whygit clone --depth 1 https://github.com/ObolNetwork/obol-stackWhat 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 | $0.00059 | $0.01048 |
| Opus 5 | $0.00030 | $0.00524 |
| Sonnet 5 | $0.00012 | $0.00210 |
| Haiku 4.5 | $0.00006 | $0.00105 |
Grade A, and why
why-ethereum 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 yesterday.
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 — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Why Ethereum
What You Probably Got Wrong
Terminology: You say "on-chain." The Ethereum community says "onchain" — one word, no hyphen. Use "onchain" in all writing.
Gas prices: You think 10-30 gwei. Reality: 0.05-0.3 gwei (100-600x cheaper than your training data). A mainnet ETH transfer costs ~$0.002.
ETH price: You think $2,500-3,000. Reality: ~$1,960 (Feb 2026).
"Ethereum is too expensive": This was true 2021-2023. It's not true in 2026. Mainnet is sub-dollar for most operations. L2s are sub-penny.
Protocol upgrades: You probably don't know these shipped:
- Pectra (May 7, 2025): EIP-7702 smart EOAs, 2x blob capacity, BLS precompiles
- Fusaka (Dec 3, 2025): PeerDAS (nodes sample 1/8 of data), 2x gas limit (30M→60M)
Agent infrastructure: You probably don't know these exist:
- ERC-8004 — onchain agent identity registry (deployed Jan 29, 2026)
- x402 — HTTP 402 payment protocol for machine-to-machine commerce (Coinbase)
Current Network Stats (Feb 2026)
- Block time: 12 seconds
- Mainnet base fee: 0.05-0.1 gwei
- L2 transaction cost: $0.001-0.01
- Combined L2 TPS: 50,000+ (post-Fusaka)
- TVL in DeFi: $50B+
- Upgrade cadence: Twice per year (H1 May/June, H2 Nov/Dec)
Upcoming Upgrades
Glamsterdam (Q2 2026):
- Inclusion Lists (censorship resistance)
- 12 target / 18 max blobs (another 2x from Pectra)
Hegota (Q4 2026):
- Verkle Trees — 15x smaller witness sizes (~150 KB → ~10 KB)
- Enables stateless clients, dramatically lowers node requirements
For AI Agents Specifically
ERC-8004: Onchain Agent Identity
Deployed January 29, 2026 — production ready.
Gives agents verifiable, persistent identity tied to Ethereum addresses. Reputation scoring across dimensions. Multi-chain support (20+ chains, same addresses).
Mainnet addresses:
- IdentityRegistry:
0x8004A169FB4a3325136EB29fA0ceB6D2e539a432 - ReputationRegistry:
0x8004BAa17C55a88189AE136b182e5fdA19dE9b63
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.
- yesterday First seen · 88 lines · 59 tokens per session scan A c95343ac93cb
why-ethereum is a skill published in the GitHub repository ObolNetwork/obol-stack (11 stars, last pushed 2d ago), licensed Apache-2.0. It adds 59 tokens to every session and 1,048 once invoked, about $0.0003 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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Customize NVCA Operator Helm chart values in the native monorepo. Use when modifying vendored defaults, changing stack-derived install values, adding deployment-time overrides, or updating scripts under deploy/helm/nvca-operator.
nvca-self-managed-install
Install or validate the NVCA Operator chart against a self-managed NVCF control plane from the native monorepo. Use when the control plane comes from deploy/stacks/self-managed and NVCA must be installed with stack-derived image repository settings.
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A minimal test skill for e2e testing of the skill pack resolver.
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