Borrowing it
Nothing to install: this file belongs to salazarsebas/Cougr. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/salazarsebas/Cougr/main/.claude/skills/dapp/SKILL.mdgit clone --depth 1 https://github.com/salazarsebas/CougrWrote 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/salazarsebas/cougr/dapp)<a href="https://agentmods.dev/skills/salazarsebas/cougr/dapp"><img src="https://agentmods.dev/badge/skills/salazarsebas/cougr/dapp/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/salazarsebas/cougr/dapp"><img src="https://agentmods.dev/badge/skills/salazarsebas/cougr/dapp.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 | $0.00085 | $0.04740 |
| Opus 5.5 | $0.00034 | $0.01896 |
| Sonnet 5.5 | $0.00017 | $0.00948 |
| Haiku 4.5 | $0.00009 | $0.00474 |
Grade A, and why
dapp 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 today.
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 — 685 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Stellar dApp / Frontend
Client-side development with @stellar/stellar-sdk, wallet connection, signing, and submitting transactions. Covers both classic Stellar operations and Soroban contract invocation from the browser or Node.js.
When to use this skill
- Connecting Freighter or other wallets via Stellar Wallets Kit
- Building, simulating, signing, and submitting transactions
- Invoking Soroban contracts from a frontend
- Implementing smart accounts with passkeys
- Handling network passphrases (Mainnet / Testnet / local)
Related skills
- Writing the contract being invoked →
../soroban/SKILL.md - Issuing assets and managing trustlines →
../assets/SKILL.md - Querying chain state via RPC / Horizon →
../data/SKILL.md - Building paid APIs or agent payment clients →
../agentic-payments/SKILL.md - SEPs the wallet/anchor flows depend on →
../standards/SKILL.md
Goals
- Single SDK instance for the app (RPC/Horizon + transaction building)
- Freighter wallet integration (or multi-wallet via Stellar Wallets Kit)
- Clean separation of client/server in Next.js
- Transaction sending with proper confirmation handling
Quick Navigation
- SDK setup and env config: SDK Initialization
- Wallet integrations: Wallet Integration
- Tx build/send patterns: Transaction Building, Transaction Submission
- React + Next.js patterns: React Components, Next.js App Router Setup
- Smart wallets/passkeys: Smart Accounts (Passkey Wallets)
- Production UX checklist: Transaction UX Checklist
Recommended Dependencies
Requires Node.js 20+ - the Stellar SDK dropped Node 18 support.
npm install @stellar/stellar-sdk @stellar/freighter-api
# Or for multi-wallet support:
npm install @stellar/stellar-sdk @creit.tech/stellar-wallets-kit
SDK Initialization
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.
- today First seen · 685 lines · 85 tokens per session scan A c809156e7a4f
dapp is a skill published in the GitHub repository salazarsebas/Cougr (53 stars, last pushed 17d ago), licensed MIT. It adds 85 tokens to every session and 4,740 once invoked, about $0.0003 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 2026-11-07.
dapp compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| dappsalazarsebas/Cougr | Skill | 53 | 17d ago | MIT | A | 85 | Claude Code |
| frontend-designrylsherdamz-rgb/stellar-forge | Skill | 17 | 5d ago | MIT | A | 51 | Claude Code |
| stellar-forgerylsherdamz-rgb/stellar-forge | Skill | 17 | 5d ago | MIT | A | 82 | Claude Code |
| smart-contractsrylsherdamz-rgb/stellar-forge | Skill | 17 | 5d ago | MIT | A | 44 | Claude Code |
| dapprylsherdamz-rgb/stellar-forge | Skill | 17 | 5d ago | MIT | A | 48 | Claude Code |
| stellar-mcprylsherdamz-rgb/stellar-forge | Skill | 17 | 5d ago | MIT | A | 61 | Claude Code |
| datarylsherdamz-rgb/stellar-forge | Skill | 17 | 5d ago | MIT | A | 41 | Claude Code |