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feat(cli): add non-interactive list-tools command #29

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4 changes: 4 additions & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
@@ -1,3 +1,7 @@
# 2.1.0

- Add `list-tools` non-interactive command to list tools from a configured MCP server

# 2.0.0

- **Breaking**: require Node.js 20 or newer
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5 changes: 4 additions & 1 deletion README.md
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Expand Up @@ -59,7 +59,7 @@ npx @wong2/mcp-cli --sse http://localhost:8000/sse

### Non-interactive mode

Run a specific tool, resource, or prompt without interactive prompts:
Run a specific tool, resource, or prompt without interactive prompts, or list tools from a configured server:

```bash
npx @wong2/mcp-cli [--config config.json] <command> <server-name>:<target> [--args '{}']
Expand All @@ -71,6 +71,9 @@ Examples:
# Call a tool without arguments
npx @wong2/mcp-cli -c config.json call-tool filesystem:list_files

# List tools exposed by a configured server
npx @wong2/mcp-cli -c config.json list-tools filesystem

# Call a tool with arguments
npx @wong2/mcp-cli -c config.json call-tool filesystem:read_file --args '{"path": "package.json"}'

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4 changes: 4 additions & 0 deletions src/cli.js
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Expand Up @@ -15,6 +15,7 @@ const cli = meow(
$ mcp-cli --url http://localhost:8000/mcp
$ mcp-cli --sse http://localhost:8000/sse
$ mcp-cli purge
$ mcp-cli [--config config.json] list-tools <server_name>
$ mcp-cli [--config config.json] call-tool <server_name>:<tool_name> [--args '{"key":"value"}']
$ mcp-cli [--config config.json] read-resource <server_name>:<resource_uri>
$ mcp-cli [--config config.json] get-prompt <server_name>:<prompt_name> [--args '{"key":"value"}']
Expand Down Expand Up @@ -53,6 +54,9 @@ const options = { compact: cli.flags.compact }

if (cli.input[0] === 'purge') {
purge()
} else if (cli.input.length >= 2 && cli.input[0] === 'list-tools') {
const [, serverName] = cli.input
await runWithConfigNonInteractive(cli.flags.config, serverName, 'list-tools')
} else if (
cli.input.length >= 2 &&
(cli.input[0] === 'call-tool' || cli.input[0] === 'read-resource' || cli.input[0] === 'get-prompt')
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4 changes: 3 additions & 1 deletion src/mcp.js
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Expand Up @@ -218,7 +218,9 @@ export async function runWithConfigNonInteractive(configPath, serverName, comman
}
}

if (command === 'call-tool') {
if (command === 'list-tools') {
result = await client.listTools()
} else if (command === 'call-tool') {
result = await client.callTool({ name: target, arguments: args })
} else if (command === 'read-resource') {
result = await client.readResource({ uri: target })
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