mantle

mantle is a skill for Claude Code, Codex from Starchild-ai-agent/official-skills. It costs 57 tokens per session (802 once invoked), scanned A, original, no licence file.

A general guide and toolkit for working with Mantle Network, a blockchain where applications and smart contracts run. It covers network information, address checks, analytics, DeFi planning, contracts, and gas-related troubleshooting.

In plain words
What is it for?
Use it to verify addresses, plan DeFi routes, investigate Mantle RPC errors, or design contracts that use Mantle gas.
Why use it?
It brings common Mantle development and investigation tasks into one place instead of requiring separate research for each task.

Skill for Claude CodeCodex

Written for Claude Code and Codex: disable-model-invocation in frontmatter, but also agents/openai.yaml present.

Good fit Use it to verify addresses, plan DeFi routes, investigate Mantle RPC errors, or design contracts that use Mantle gas.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/starchild-ai-agent/official-skills/mantle
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 Starchild-ai-agent/official-skills --skill mantle
Clone the repo
git clone --depth 1 https://github.com/Starchild-ai-agent/official-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 mantle

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/starchild-ai-agent/official-skills/mantle"><img src="https://agentmods.dev/badge/skills/starchild-ai-agent/official-skills/mantle.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 802 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.
Origin unknown 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 $0.00057 $0.00802
Opus 5 $0.00028 $0.00401
Sonnet 5 $0.00011 $0.00160
Haiku 4.5 $0.00006 $0.00080

Measured 9d ago against content hash 807f464c3ab3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

mantle 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 9d 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.

mantle/SKILL.md · 75 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

46 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. 9d ago First seen · 75 lines · 57 tokens per session scan A 807f464c3ab3

Subscribe to this mod's changes

mantle is a skill published in the GitHub repository Starchild-ai-agent/official-skills (27 stars, last pushed 2d ago), with no licence file. It adds 57 tokens to every session and 802 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 2026-09-03.

Related

Other skills, from other repositories

code-changes

Orchestration workflow for any task that ends in code changes: issue analysis, pull request review, feature implementation, bug fixes, refactors, or fleshing out an idea. MUST be invoked at the start of such a task, before reading or writing any code. Defines how to analyze first, gate on user approval, plan, pick the…

JanDeDobbeleer/oh-my-posh · 88 tokens

nostr-addressable-event-dual-tag-query

Fix "count shows X but list shows empty" bugs when querying related events (comments, reactions, zaps, reposts) for Nostr addressable events (Kind 30000-39999). Use when: (1) REST API shows engagement count > 0 but WebSocket query returns empty, (2) Comments/reactions exist but app shows "No comments yet" or similar…

divinevideo/divine-mobile · 175 tokens

nostr-replaceable-event-mutation-overwrite

Fix silent data loss when mutating Nostr replaceable events (Kind 0 profile, Kind 3 contact/follow list, Kind 10002 relay list, etc.) in client apps. Use when: (1) Following someone wipes the user's entire follow list, (2) Updating profile metadata loses existing fields, (3) Fresh browser session or mobile login…

divinevideo/divine-mobile · 172 tokens

divine-relay-video-requirements

Fix "blocked: event rejected by relay policy" errors when publishing Kind 34236 (video) events to divine relays. Use when: (1) Kind 0 profile events succeed but Kind 34236 fails, (2) Generic policy rejection with no specific reason, (3) Video events work on other relays but fail on divine relays. The divine relay…

divinevideo/divine-mobile · 105 tokens

ndk-operation-timeout-wrapper

Fix NDK (Nostr Dev Kit) operations hanging indefinitely when relay connections stall. Use when: (1) App freezes during fetchEvents or publish calls, (2) No timeout errors despite network issues, (3) Relay connection appears stuck, (4) Using NDK with unstable or slow relays. NDK operations have no built-in timeout …

divinevideo/divine-mobile · 88 tokens

nostr-addressable-event-d-tag-requirement

Fix duplicate Nostr events (Kind 30000+ parameterized replaceable events) caused by missing d-tag. Use when: (1) Same content appears multiple times on relay for same pubkey, (2) Events aren't being replaced/updated as expected, (3) Publishing NIP-71 video events (Kind 34236) or other addressable events and seeing…

divinevideo/divine-mobile · 114 tokens