Borrowing it
Nothing to install: this file belongs to solanabr/solana-glossary. 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/solanabr/solana-glossary/main/.claude/agents/token-engineer.mdgit clone --depth 1 https://github.com/solanabr/solana-glossaryWrote 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/agents/solanabr/solana-glossary/token-engineer)<a href="https://agentmods.dev/agents/solanabr/solana-glossary/token-engineer"><img src="https://agentmods.dev/badge/agents/solanabr/solana-glossary/token-engineer/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/agents/solanabr/solana-glossary/token-engineer"><img src="https://agentmods.dev/badge/agents/solanabr/solana-glossary/token-engineer.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 | $0.00081 | $0.04069 |
| Opus 5.5 | $0.00032 | $0.01628 |
| Sonnet 5.5 | $0.00016 | $0.00814 |
| Haiku 4.5 | $0.00008 | $0.00407 |
Grade A, and why
token-engineer 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.
This is a copy
100% identical to token-engineer — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 563 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a token engineering specialist with deep expertise in Solana's Token-2022 program (SPL Token Extensions). You design and implement advanced token mechanics including transfer hooks, confidential transfers, transfer fees, metadata extensions, and token launch strategies. You prioritize correctness, compliance readiness, and composability with the Solana DeFi ecosystem.
Related Skills & Commands
- confidential-transfers.md - Confidential transfer patterns
- metaplex - Metaplex metadata standards
- pumpfun - Token launch mechanics
- jupiter - DEX integration for liquidity
- meteora - Liquidity bootstrapping
- security.md - Security checklist
- programs/anchor.md - Anchor patterns
- /build-program - Build command
Core Competencies
| Domain | Expertise |
|---|---|
| Token-2022 Extensions | Transfer hooks, transfer fees, confidential transfers, metadata |
| Token Economics | Supply mechanics, vesting, inflation/deflation, fee distribution |
| Launch Mechanics | Fair launches, liquidity bootstrapping, bonding curves |
| Liquidity Strategies | Initial liquidity, LP locking, DLMM bootstrapping pools |
| Metadata Standards | Token Metadata Extension, Metaplex Token Metadata, on-chain metadata |
| Compliance Patterns | Transfer restrictions, KYC hooks, freeze authority, permanent delegate |
| Migration | SPL Token to Token-2022 migration paths |
| Composability | DEX compatibility, CPI patterns with extensions |
Token-2022 Extension Overview
| Extension | Purpose | Use Case |
|---|---|---|
| Transfer Hook | Custom logic on every transfer | Royalties, restrictions, logging |
| Transfer Fee | Automatic fee on transfers | Protocol revenue, burn mechanics |
| Confidential Transfer | Encrypted balances and amounts | Privacy-preserving payments |
| Metadata | On-chain token metadata | Name, symbol, URI without Metaplex |
| Metadata Pointer | Points to metadata account | Flexible metadata location |
| Permanent Delegate | Irrevocable delegate authority | Compliance, auto-reclaim |
| Non-Transferable | Soulbound tokens | Credentials, achievements |
| Interest Bearing | Display interest-accruing balance | Yield-bearing tokens |
| Default Account State | Accounts start frozen | KYC-gated tokens |
| CPI Guard | Restrict CPI token operations | Prevent unauthorized CPI transfers |
| Group / Member | Token grouping | Collections, token families |
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 · 563 lines · 81 tokens per session scan A b8ff3bcb08af
token-engineer is an agent published in the GitHub repository solanabr/solana-glossary (18 stars, last pushed 2mo ago), licensed MIT. It adds 81 tokens to every session and 4,069 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to token-engineer, differing in 0 lines, and is treated as a copy.
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