Refactor: Move all FRAME pallets into crates/pallets/ folder

.claude/skills/test/pallet.md

@@ -186,6 +186,6 @@ fn test_provider_registered_event() {
 
 ## Links
 
-- [Pallet Source](/pallet/src/lib.rs)
+- [Pallet Source](/crates/pallets/storage-provider/src/lib.rs)
 - For end-to-end exercise: `just demo` (Layer-0 PAPI), `just fs-demo-ci`, `just s3-demo-ci`
-- [Runtime](/runtime/src/lib.rs)
+- [Runtime](/runtime/src/lib.rs)

.github/workflows/check-runtime-migration.yml

@@ -51,9 +51,8 @@ jobs:
           filters: |
             runtime:
               - 'runtimes/**'
-              - 'pallet/**'
+              - 'crates/pallets/**'
               - 'primitives/**'
-              - 'storage-interfaces/**/pallet-*/**'
               - '**/Cargo.toml'
               - 'Cargo.lock'
               - '.github/workflows/check-runtime-migration.yml'

CLAUDE.md

@@ -212,9 +212,11 @@ export function sameAddress(a, b) {
 
 ```
 web3-storage/
-├── pallet/                     # Substrate pallet (on-chain logic - Layer 0)
-│   ├── src/lib.rs             # Core pallet implementation
-│   └── Cargo.toml             # Pallet dependencies
+├── crates/
+│   └── pallets/               # FRAME pallets (on-chain logic)
+│       ├── storage-provider/  # Storage provider pallet (Layer 0)
+│       ├── drive-registry/    # Drive Registry pallet (Layer 1 file system)
+│       └── s3-registry/       # S3 Registry pallet (Layer 1 S3)
 ├── runtimes/                   # Parachain runtimes
 │   ├── web3-storage-local/     # Local testnet runtime (storage-parachain-runtime)
 │   │   ├── src/lib.rs         # Runtime configuration
@@ -242,7 +244,6 @@ web3-storage/
 ├── storage-interfaces/         # Layer 1 - High-level interfaces
 │   └── file-system/           # File System Interface
 │       ├── primitives/        # File system types (DriveInfo, CommitStrategy, etc.)
-│       ├── pallet-registry/   # Drive Registry pallet (on-chain)
 │       └── client/            # File System Client SDK
 │           ├── src/
 │           │   ├── lib.rs     # Main file system client
@@ -275,7 +276,7 @@ web3-storage/
 
 #### Layer 0 (Raw Storage)
 
-**Pallet (`pallet/`)**: On-chain logic for provider registration, bucket creation, storage agreements, checkpoints, and challenge/slashing mechanism.
+**Pallet (`crates/pallets/storage-provider/`)**: On-chain logic for provider registration, bucket creation, storage agreements, checkpoints, and challenge/slashing mechanism.
 
 **Runtime (`runtimes/web3-storage-local/`)**: Parachain runtime that includes the storage provider pallet and configures its parameters (stake requirements, challenge periods, etc.).
 
@@ -304,7 +305,7 @@ web3-storage/
 - `CommitStrategy`: Checkpoint strategies (Immediate, Batched, Manual)
 - Helper functions for CID computation and path handling
 
-**Drive Registry Pallet (`storage-interfaces/file-system/pallet-registry/`)**: On-chain drive management:
+**Drive Registry Pallet (`crates/pallets/drive-registry/`)**: On-chain drive management:
 - Drive creation with automatic infrastructure setup
 - Root CID tracking for drive state
 - User-to-drive mapping

CONTRIBUTING.md

@@ -62,7 +62,7 @@ This repository is dual-licensed. The license that applies depends on the crate:
 | License | Crates |
 |---------|--------|
 | [GPL-3.0-only](LICENSE-GPL3) | `runtimes/`, `provider-node/`, `user-interfaces/` |
-| [Apache-2.0](LICENSE-APACHE2) | `pallet/`, `primitives/`, `client/`, `precompiles/`, `storage-interfaces/` |
+| [Apache-2.0](LICENSE-APACHE2) | `crates/pallets/`, `primitives/`, `client/`, `precompiles/`, `storage-interfaces/` |
 
 Each crate declares its applicable license in its `Cargo.toml` or
 `package.json`.

Cargo.toml

@@ -1,9 +1,10 @@
 [workspace]
 resolver = "2"
 members = [
-	# Layer 0: Scalable Web3 Storage
 	"client",
-	"pallet",
+	"crates/pallets/drive-registry",
+	"crates/pallets/s3-registry",
+	"crates/pallets/storage-provider",
 	"primitives",
 	"provider-node",
 	"provider/negotiation",
@@ -17,12 +18,10 @@ members = [
 
 	# Storage Interfaces: File System Interface
 	"storage-interfaces/file-system/client",
-	"storage-interfaces/file-system/pallet-registry",
 	"storage-interfaces/file-system/primitives",
 
 	# Storage Interfaces: S3-Compatible Interface
 	"storage-interfaces/s3/client",
-	"storage-interfaces/s3/pallet-s3-registry",
 	"storage-interfaces/s3/primitives",
 ]
 
@@ -36,7 +35,7 @@ repository = "https://github.com/paritytech/web3-storage"
 # Layer 0: Scalable Web3 Storage (Internal crates)
 pallet-drive-registry-precompile = { path = "precompiles/drive-registry-precompile", default-features = false }
 pallet-s3-registry-precompile = { path = "precompiles/s3-registry-precompile", default-features = false }
-pallet-storage-provider = { path = "pallet", default-features = false }
+pallet-storage-provider = { path = "crates/pallets/storage-provider", default-features = false }
 pallet-storage-provider-precompile = { path = "precompiles/storage-provider-precompile", default-features = false }
 provider-negotiation = { path = "provider/negotiation" }
 storage-client = { path = "client" }
@@ -47,10 +46,10 @@ storage-provider-node = { path = "provider-node" }
 # Storage Interfaces: File System Interface
 file-system-client = { path = "storage-interfaces/file-system/client" }
 file-system-primitives = { path = "storage-interfaces/file-system/primitives", default-features = false }
-pallet-drive-registry = { path = "storage-interfaces/file-system/pallet-registry", default-features = false }
+pallet-drive-registry = { path = "crates/pallets/drive-registry", default-features = false }
 
 # Storage Interfaces: S3-Compatible Interface
-pallet-s3-registry = { path = "storage-interfaces/s3/pallet-s3-registry", default-features = false }
+pallet-s3-registry = { path = "crates/pallets/s3-registry", default-features = false }
 s3-client = { path = "storage-interfaces/s3/client" }
 s3-primitives = { path = "storage-interfaces/s3/primitives", default-features = false }
 

README.md

@@ -186,7 +186,7 @@ Two types of nodes work together:
 
 ```
 scalable-web3-storage/
-├── pallet/               # Substrate pallet (on-chain logic)
+├── crates/pallets/       # FRAME pallets (on-chain logic)
 ├── runtimes/             # Parachain runtimes (web3-storage-local, web3-storage-paseo)
 ├── provider-node/        # Off-chain storage server (HTTP API)
 ├── client/               # Client SDK for applications

docs/design/scalable-web3-storage-implementation.md

@@ -863,7 +863,7 @@ pub enum Event<T: Config> {
 Read-only queries used by clients (the Rust SDK, demos, and the provider
 node's membership cache) to discover providers, inspect bucket state, list
 agreements, and watch challenges without submitting transactions. Defined in
-`pallet/src/runtime_api.rs` as `StorageProviderApi`.
+`crates/pallets/storage-provider/src/runtime_api.rs` as `StorageProviderApi`.
 
 ```rust
 sp_api::decl_runtime_apis! {
@@ -912,7 +912,7 @@ sp_api::decl_runtime_apis! {
 }
 ```
 
-Response types live in `pallet/src/runtime_api.rs` (`ProviderInfoResponse`,
+Response types live in `crates/pallets/storage-provider/src/runtime_api.rs` (`ProviderInfoResponse`,
 `StorageRequirements`, `MatchedProvider`, `BucketResponse`,
 `AgreementResponse`, `ChallengeResponse`, etc.). They flatten the on-chain
 structs into encode/decode-friendly shapes (e.g. `AccountId` as `Vec<u8>`,

docs/filesystems/ADMIN_GUIDE.md

@@ -373,7 +373,7 @@ let num_providers: u8 = if let Some(min) = min_providers {
 
 ```rust
 // Modify thresholds in pallet code:
-// storage-interfaces/file-system/pallet-registry/src/lib.rs
+// crates/pallets/drive-registry/src/lib.rs
 
 // Example: More aggressive replication
 if storage_period > 500 {

docs/filesystems/README.md

@@ -29,7 +29,7 @@ cargo run -p file-system-client --example basic_usage
 
 ## Components
 
-- **Drive Registry pallet** (`storage-interfaces/file-system/pallet-registry/`) — on-chain drive metadata, owner mapping, root CID slot.
+- **Drive Registry pallet** (`crates/pallets/drive-registry/`) — on-chain drive metadata, owner mapping, root CID slot.
 - **File-system primitives** (`storage-interfaces/file-system/primitives/`) — shared types: `DriveInfo`, `DirectoryNode`, `FileManifest`, `CommitStrategy`.
 - **File-system client SDK** (`storage-interfaces/file-system/client/`) — Rust client. Real chain queries via subxt; file operations via the provider's `/fs/{bucket}/...` HTTP endpoints.
 - **TypeScript SDK** — `FileSystemClient` from `@web3-storage/sdk/fs` (`packages/layer1`), built on the layer-0 chain binding.

docs/reference/EXTRINSICS_REFERENCE.md

@@ -1,6 +1,6 @@
 # Storage Provider Pallet - Extrinsics Reference
 
-Quick reference for all available extrinsics in the storage provider pallet ([pallet/src/lib.rs](../../pallet/src/lib.rs)).
+Quick reference for all available extrinsics in the storage provider pallet ([crates/pallets/storage-provider/src/lib.rs](../../crates/pallets/storage-provider/src/lib.rs)).
 
 ## Provider Management
 

licenserc.apache.toml

@@ -7,12 +7,12 @@ keywords = ["SPDX-License-Identifier"]
 
 includes = [
 	"client/**/*.rs",
+	"crates/pallets/**/*.rs",
 	"examples/contracts/**/*.sol",
 	"examples/papi/**/*.ts",
 	"packages/**/*.js",
 	"packages/**/*.ts",
 	"packages/**/*.tsx",
-	"pallet/**/*.rs",
 	"precompiles/**/*.rs",
 	"precompiles/**/*.sol",
 	"primitives/**/*.rs",

provider-node/src/challenge_responder.rs

@@ -381,7 +381,7 @@ const CHALLENGE_ENTRY_SIZE: usize = 144;
 /// the decoded `provider` field matches `our_bytes`; `None` when the
 /// challenge targets a different provider.
 ///
-/// Layout of `Challenge<T>` (see `pallet/src/lib.rs`):
+/// Layout of `Challenge<T>` (see `crates/pallets/storage-provider/src/lib.rs`):
 ///   bucket_id (u64)         — 8
 ///   provider (AccountId32)  — 32
 ///   challenger (AccountId32)— 32

storage-interfaces/file-system/README.md

@@ -48,7 +48,7 @@ Core data structures and types for the file system.
 - CID computation and manipulation
 - DAG helper functions
 
-### `pallet-registry/`
+### Drive Registry pallet (`crates/pallets/drive-registry/`)
 On-chain registry pallet for drive management.
 
 **User-Facing Extrinsics:**

storage-interfaces/s3/README.md

@@ -33,7 +33,7 @@ This module provides an S3-compatible storage interface (Layer 1) on top of the
 | Component | Path | Description |
 |-----------|------|-------------|
 | **s3-primitives** | `primitives/` | Core types and validation functions (no_std compatible) |
-| **pallet-s3-registry** | `pallet-s3-registry/` | On-chain S3 bucket and object metadata storage |
+| **pallet-s3-registry** | `../../crates/pallets/s3-registry/` | On-chain S3 bucket and object metadata storage |
 | **s3-client** | `client/` | High-level SDK for S3 operations |
 
 ## Quick Start

user-interfaces/shared/test-helpers/src/registration.ts

@@ -23,7 +23,7 @@ function publicKeyHex(address: string): string {
  * Storage key for `pallet_storage_provider::Providers[address]`. Layout
  * is `twox128(pallet_name) ++ twox128(storage_name) ++
  * blake2_128_concat(scale(account))`, matching the FRAME `StorageMap`
- * with `Blake2_128Concat` hasher in `pallet/src/lib.rs`. AccountId32 is
+ * with `Blake2_128Concat` hasher in `crates/pallets/storage-provider/src/lib.rs`. AccountId32 is
  * 32 raw bytes, so the scale encoding of the key is just those bytes.
  */
 function providersStorageKey(address: string): Uint8Array {