implemented p2p ping

.vscode/launch.json

@@ -13,6 +13,17 @@
             "showLog": true,
             "trace": "verbose"
         },
-
+        {
+            "name": "sncli debug",
+            "type": "go",
+            "request": "launch",
+            "mode": "debug",
+            "program": "${workspaceFolder}/cmd/sncli/main.go",
+            "cwd": "${workspaceFolder}/cmd/sncli",
+            "args": ["list"],
+            "env": {},
+            "showLog": true,
+            "trace": "verbose"
+        },        
     ]
 }

Makefile

@@ -34,6 +34,9 @@ build:
 
 build-sncli: release/sncli
 
+SNCLI_SRC := $(wildcard cmd/sncli/*.go) \
+             $(wildcard cmd/sncli/**/*.go)
+
 release/sncli: $(SNCLI_SRC) cmd/sncli/go.mod cmd/sncli/go.sum
 	@mkdir -p release
 	@echo "Building sncli..."
@@ -49,8 +52,6 @@ release/sncli: $(SNCLI_SRC) cmd/sncli/go.mod cmd/sncli/go.sum
 	chmod +x $$RELEASE_DIR/sncli && \
 	echo "sncli built successfully at $$RELEASE_DIR/sncli"
 
-SNCLI_SRC=$(shell find cmd/sncli -name "*.go")
-
 build-sn-manager:
 	@mkdir -p release
 	@echo "Building sn-manager..."

cmd/sncli/README.md

@@ -18,9 +18,13 @@ make build-sncli
 
 ## ⚙️ Configuration
 
-Create a `config.toml` file in the same directory where you run `sncli`:
+**Default config location:** `~/.sncli/config.toml`
+
+You can override the location with `--config <path>` or `SNCLI_CONFIG_PATH`.
 
 ```toml
+# ~/.sncli/config.toml
+
 # Lumera blockchain connection settings
 [lumera]
 grpc_addr = "localhost:9090"
@@ -36,10 +40,11 @@ local_address = "lumera1abc..."      # Bech32 address of local account (must exi
 # Supernode peer information
 [supernode]
 grpc_endpoint = "127.0.0.1:4444"
+p2p_endpoint = "127.0.0.1:4445"
 address = "lumera1supernodeabc123"   # Bech32 address of the Supernode
 ```
 
-> Ensure the `local_address` exists on-chain (i.e., has received funds or sent a tx).
+> Ensure the `keyring.local_address` exists on-chain (i.e., has received funds or sent a tx).
 
 ---
 
@@ -48,41 +53,87 @@ address = "lumera1supernodeabc123"   # Bech32 address of the Supernode
 Run the CLI by calling the built binary with a command:
 
 ```bash
-./sncli [<options>] <command> [args...]
+sncli [global flags] <command> [command flags] [args...]
 ```
 
-### Supported Command-Line Options
+### Global flags
 
-| Option          | Description                                                                                       |
-| --------------- | ------------------------------------------------------------------------------------------------- |
-| --config        | Path to config file. Supports ~. Default: ./config.toml or SNCLI_CONFIG_PATH environment variable |
-| --grpc_endpoint | Override gRPC endpoint for Supernode (e.g., 127.0.0.1:4444)                                       |
-| --address       | Override Supernode's Lumera address                                                               |
+* `--config string`          Path to config file (default `~/.sncli/config.toml`)
+* `--grpc_endpoint string`   Supernode gRPC endpoint
+* `--p2p_endpoint string`    Supernode P2P endpoint (Kademlia)
+* `--address string`         Supernode Lumera address
+* `-h, --help`               Help for `sncli`
 
 ### Supported Commands
+* `completion`        Generate shell completion
+* `get-status`        Query Supernode status (CPU, memory, tasks, peers)
+* `health-check`      Check Supernode health status
+* `list`              List available gRPC services or methods in a specific service
+* `list` `<service>`  List methods in a specific gRPC service
+* `p2p`             **Supernode P2P utilities**
+
+## 🌐 P2P command group
+
+The `p2p` group contains tools for interacting with the Supernode’s **Kademlia P2P** service.
+
+### `sncli p2p`
+
+Shows P2P help and available subcommands.
 
-| Command                | Description                                              |
-| ---------------------- | -------------------------------------------------------- |
-| `help`               | Show usage instructions                                  |
-| `list`               | List available gRPC services from the Supernode          |
-| `list` `<service>` | List methods in a specific gRPC service                  |
-| `health-check`       | Check if the Supernode is alive                          |
-| `get-status`         | Query current CPU/memory usage reported by the Supernode |
+```
+Supernode P2P utilities
+
+Usage:
+  sncli p2p [command]
+
+Available Commands:
+  ping        Check the connectivity to a Supernode's kademlia P2P server
 
 ### Example
 
 ```bash
 ./sncli --config ~/.sncli.toml --grpc_endpoint 10.0.0.1:4444 --address lumera1xyzabc get-status
 ```
 
+### `sncli p2p ping` — check connectivity
+
+Checks TCP reachability and does a lightweight ping of the Supernode’s **P2P** endpoint.
+
+**Usage**
+
+```
+sncli p2p ping [timeout]
+```
+
+* `timeout` is optional (e.g., `5s`, `1m`). If omitted, a sensible default is used (e.g., `10s`).
+* You can also set `--timeout` explicitly (if supported by your build).
+* The endpoint can be supplied via `--p2p_endpoint` or taken from the config at `[supernode].p2p_endpoint`.
+
 ---
 
+**Examples**
+
+```bash
+# Use endpoint from config (~/.sncli/config.toml)
+sncli p2p ping
+
+# Override endpoint with a flag
+sncli p2p ping --p2p_endpoint 172.18.0.6:4445
+# Output:
+# P2P is alive (172.18.0.6:4445)
+
+# Use a custom timeout (positional)
+sncli p2p ping 3s
+
+# Use a custom timeout (flag)
+sncli p2p ping --timeout 30s
+```
+
 ## 📝 Notes
 
 - `sncli` uses a secure gRPC connection with a handshake based on the Lumera keyring.
-- The Supernode address must match a known peer on the network.
 - Make sure`sncli-account` has been initialized and exists on the chain.
 - Config file path is resolved using this algorithm:
   - First uses --config flag (if provided)
   - Else uses SNCLI_CONFIG_PATH environment variable (if defined)
-  - Else defaults to ./config.toml
+  - Else defaults to ~/.sncli/config.toml