AgentSkillsCN

web3-solana-simd

Solana改进文档（SIMD）查询与参考。适用于需要理解Solana协议变更、改进提案，或Solana专属概念的场景。内嵌关键SIMD，并附有查询指南。

SKILL.md
--- frontmatter
name: web3-solana-simd
description: Solana Improvement Document (SIMD) lookup and reference. Use when you need to understand Solana protocol changes, improvement proposals, or Solana-specific concepts. Includes key SIMDs inline and lookup instructions.

SIMD Reference

How to Look Up Any SIMD

GitHub

bash
gh api repos/solana-foundation/solana-improvement-documents/contents/proposals/{number}-{slug}.md

Browse

SIMD Status Lifecycle

code
Draft -> Review -> Accepted -> Implemented -> Activated
                            -> Rejected

Key Solana Concepts

Accounts Model

  • •Everything is an account (programs, data, tokens)
  • •Accounts have: owner (program), lamports, data, executable flag
  • •Programs are stateless — state lives in separate data accounts
  • •Account size is fixed at creation (rent-exempt if funded)

Rent

  • •Accounts must maintain minimum balance for rent exemption
  • •~0.00089088 SOL per byte (at current rate)
  • •Rent-exempt = 2 years of rent pre-paid

PDAs (Program Derived Addresses)

  • •Deterministic addresses derived from seeds + program ID
  • •Not on the ed25519 curve (no private key)
  • •Used as program-controlled accounts
  • •findProgramAddress(seeds, programId) returns canonical PDA + bump

CPIs (Cross-Program Invocations)

  • •Programs calling other programs
  • •Max depth: 4 levels
  • •Signer privileges extend through CPI chain
  • •PDA signing via invoke_signed

Core SIMDs

See core-simds.md for detailed summaries of key Solana improvement proposals.