[study] (2h) Vault ERC-20 share mechanics — mint/burn, composability, no-transfer-hook

[ozpool]

Goal

Understand PRISM's share model and its composability implications.

Time estimate

2h (single focused session)

Prerequisites

• [study] (2h) ERC-4626 tokenized vault standard — what PRISM inherits vs diverges #97 (F26) — ERC-4626 tokenized vault standard — what PRISM inherits vs diverges

Study plan (in order)

1. [25 min] PRISM_PRD_v1.0.html §Day 2 Vault Core + Share Mechanics
2. [25 min] Solmate ERC-20 implementation used by PRISM
3. [25 min] No transfer hook = shares are composable; downstream protocols can accept them as collateral, trade them, etc.
4. [25 min] Mint/burn invariants: mint on deposit, burn on withdraw; MIN_SHARES burn on first deposit
5. [20 min] Write outcomes from memory

Total: 120 min

After studying, you can

• Describe mint/burn invariants
• Explain the no-transfer-hook decision and its composability gains
• Articulate what downstream protocols can do with vault shares
• Reason about 4626 compatibility tradeoffs

Tradeoff prompt for the architectural review

Should PRISM add an ERC-4626-compatible single-asset variant?

References

• PRISM_PRD_v1.0.html §Day 2
• Solmate ERC20.sol