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 skills add ChainGPT-org/chaingpt-claude-skill --skill basegit clone --depth 1 https://github.com/ChainGPT-org/chaingpt-claude-skillWrote 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.
[](https://agentmods.dev/skills/chaingpt-org/chaingpt-claude-skill/base)<a href="https://agentmods.dev/skills/chaingpt-org/chaingpt-claude-skill/base"><img src="https://agentmods.dev/badge/skills/chaingpt-org/chaingpt-claude-skill/base/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.
<a href="https://agentmods.dev/skills/chaingpt-org/chaingpt-claude-skill/base"><img src="https://agentmods.dev/badge/skills/chaingpt-org/chaingpt-claude-skill/base.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00000 | $0.00548 |
| Opus 5.5 | $0.00000 | $0.00219 |
| Sonnet 5.5 | $0.00000 | $0.00110 |
| Haiku 4.5 | $0.00000 | $0.00055 |
Grade A, and why
base 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 1mo ago.
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.
What it actually says
Base Ecosystem skill
Tools for building on Coinbase's Base L2: human-readable names and Mini Apps.
Basenames (name.base.eth)
ENS-style naming on Base. Resolution verified live against Base mainnet.
| Tool | Purpose |
|---|---|
chaingpt_base_resolve_name |
Forward (name → address) or reverse (address → primary name). Auto-detects from input. Read-only. |
chaingpt_base_name_availability |
Is a label available + the price for N years. Read-only. |
chaingpt_base_register_name_tx |
Build the UNSIGNED registration tx (payable; sets the addr record + optional reverse record). Mainnet needs acknowledgeMainnet:true. |
chaingpt_base_resolve_name query=jesse.base.eth → address. query=0x… → name.
Base App / Farcaster Mini Apps
A Mini App is a web app that runs inside the Base App and Farcaster from a feed post (Farcaster Mini Apps spec; MiniKit wraps OnchainKit on the Base side). These tools are pure generation/validation — no network, no keys.
| Tool | Purpose |
|---|---|
chaingpt_miniapp_manifest |
Generate /.well-known/farcaster.json (the miniapp object + frame alias). |
chaingpt_miniapp_embed |
Generate the fc:miniapp (+ legacy fc:frame) HTML meta tag for shareable embeds. |
chaingpt_miniapp_validate |
Validate a manifest against the spec (required fields, lengths, https, category). |
The manifest's
accountAssociation(domain-ownership proof) must be signed with your Farcaster custody key — generate it withnpx create-onchain --manifest. The tool emits a placeholder and explains the step.
Reliability
EVM reads use a public-RPC fallback chain. For heavy use set BASE_RPC_URL to a
dedicated endpoint. 0 ChainGPT credits.
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.
- 1mo ago First seen · 42 lines · 0 tokens per session scan A 39b9095dff69
base is a skill published in the GitHub repository ChainGPT-org/chaingpt-claude-skill (7 stars, last pushed 1mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 548 tokens. 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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