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+# Super Send SuperToken Wrapper – Plan (PR1)
+
+Scope and boundaries
+• This repo is for a new Superfluid-based SuperToken wrapper around the already-deployed SEND v1.
+• Do not include or modify the lockbox or the v1 token here—they live in a separate repo: ~/Documents/Send/send-token-upgrade.
+• The wrapper is backend-only; end users never hold or interact with it. No convenience/combined functions.
+
+External dependencies (addresses)
+• SEND v1 (underlying)
+  • Base mainnet (8453): 0xEab49138BA2Ea6dd776220fE26b7b8E446638956
+  • Base Sepolia (84532): 0xBbB542c66a7DD7BA6893C9630B30358D610FF3ee
+  • Local Base mainnet (845337): 0xEab49138BA2Ea6dd776220fE26b7b8E446638956
+• Superfluid core
+  • Base mainnet:
+    • Resolver: 0x6a214c324553F96F04eFBDd66908685525Da0E0d
+    • Host: 0x4C073B3baB6d8826b8C5b229f3cfdC1eC6E47E74
+    • CFAv1: 0x19ba78B9cDB05A877718841c574325fdB53601bb
+    • SuperTokenFactory: 0xe20B9a38E0c96F61d1bA6b42a61512D56Fea1Eb3
+  • Base Sepolia:
+    • Resolver: 0x21d4E9fbB9DB742E6ef4f29d189a7C18B0b59136
+    • Host: 0x109412E3C84f0539b43d39dB691B08c90f58dC7c
+    • CFAv1: 0x6836F23d6171D74Ef62FcF776655aBcD2bcd62Ef
+    • SuperTokenFactory: 0x7447E94Dfe3d804a9f46Bf12838d467c912C8F6C
+
+Operational context
+• Tests and deployments treat SEND v1 as an external dependency (attach by address; do not deploy it).
+• Keep env vars: EOA_DEPLOYER, ETHERSCAN_API_KEY. For forked tests, impersonate as needed.
+• Local dev: bun run test (Hardhat tests on Base fork); ./bin/anvil-deploy to run wrapper deploy flow locally.
+
+Defaults (can be overridden later)
+• Wrapper name/symbol: “Super Send” / “SENDx”
+• Underlying decimals: 18
+• Upgradability: SEMI_UPGRADABLE
+• Owner: EOA_DEPLOYER (script signer only; wrapper is created via SuperTokenFactory)
+• Networks in scope: Base mainnet (8453), Base Sepolia (84532), local Base fork (845337)
+
+Planned PR stack
+• PR1 (this PR): PLAN.md only (no code changes)
+• PR2 (cleanup): Remove/ignore all legacy migration contracts/tests (SendToken, Lockbox, old Ignition module), repoint Tilt to wrapper-only
+• PR3 (config + deps): Add Superfluid per-network config and ABIs; deployments/ scaffolding; README update
+• PR4 (script): Viem-based wrapper create/attach script calling SuperTokenFactory.createERC20Wrapper and persisting deployments/wrapper.{chainId}.json
+• PR5 (tests): Base-fork tests — metadata + upgrade/downgrade round-trip (gated by SEND_HOLDER), optional CFA smoke (gated by RUN_CFA_SMOKE)
+• PR6 (ops): Repurpose bin/anvil-deploy to wrapper-only flow and update Tiltfile
+
+Acceptance criteria
+• No lockbox/v1 contracts or tests remain in this repo
+• Superfluid ABIs installed; network addresses configured per chain
+• Wrapper create/attach script works on Base fork and persists to deployments/
+• Tests pass on fork:
+  • Metadata test always runs
+  • Upgrade/downgrade test passes when SEND_HOLDER is provided; otherwise skipped with a clear message
+  • Optional CFA smoke test passes when RUN_CFA_SMOKE=true; otherwise skipped
+• README documents backend-only wrapper flow and Graphite workflow
+
+References (Rule 3: mirror official examples; no custom Solidity)
+• SuperTokenFactory: docs and contract
+  • https://docs.superfluid.finance/superfluid/protocol-developers/supertokens/supertokenfactory
+  • https://github.com/superfluid-finance/protocol-monorepo/blob/dev/packages/ethereum-contracts/contracts/superfluid/SuperTokenFactory.sol
+• ISuperToken (upgrade/downgrade/metadata)
+  • https://github.com/superfluid-finance/protocol-monorepo/blob/dev/packages/ethereum-contracts/contracts/interfaces/superfluid/ISuperToken.sol
+• CFAv1 docs and interface
+  • https://docs.superfluid.finance/superfluid/developers/constant-flow-agreement-cfa
+  • https://github.com/superfluid-finance/protocol-monorepo/blob/dev/packages/ethereum-contracts/contracts/interfaces/agreements/IConstantFlowAgreementV1.sol
+• Hardhat + Viem
+  • https://github.com/NomicFoundation/hardhat-viem
+• Ignition external call pattern (optional)
+  • https://hardhat.org/hardhat-runner/plugins/nomicfoundation-hardhat-ignition
+