Fix MCP install: drop shadowing .mcp.json, use shorter add command

The committed project-scope .mcp.json with bare "eval-mcp" command shadowed
user-scope installs (Claude Code scope precedence: local > project > user)
and failed to connect since the binary isn't on PATH after the documented
uvx-based install. Removing it lets the README one-liner work everywhere.
Switch that one-liner to the cleaner positional form — same result, less
shell-escaping, stdio default.

Author: DataGomes

.gitignore

@@ -117,5 +117,11 @@ terraform.tfvars
 .tools/
 .claude/
 
+# Project-scope MCP config — must not be committed: it shadows users' user-scope
+# eval-mcp install for anyone who cd's into this repo (Claude Code scope
+# precedence: local > project > user). Contributors who want to dogfood from
+# source can create one locally; see docs/DEVELOPMENT.md.
+.mcp.json
+
 # Local eval log artifacts (synced via S3)
 logs/

.mcp.json

@@ -24,7 +24,7 @@ If multiple, ask the user which.
 
 Run the one-command install for that IDE:
 
-- **Claude Code**: `claude mcp add-json eval '{"type":"stdio","command":"uvx","args":["--from","llm-evaluation-system","eval-mcp"]}' --scope user`
+- **Claude Code**: `claude mcp add eval -s user -- uvx --from llm-evaluation-system eval-mcp`
 - **Cursor**: open `cursor://anysphere.cursor-deeplink/mcp/install?name=eval&config=eyJjb21tYW5kIjoidXZ4IiwiYXJncyI6WyItLWZyb20iLCJsbG0tZXZhbHVhdGlvbi1zeXN0ZW0iLCJldmFsLW1jcCJdfQ==` (or edit `~/.cursor/mcp.json`)
 - **VS Code**: `code --add-mcp '{"name":"eval","command":"uvx","args":["--from","llm-evaluation-system","eval-mcp"]}'`
 - **Kiro**: merge into `~/.kiro/settings/mcp.json` under `mcpServers.eval` — same JSON shape as Cursor. Back up first, atomic write.

INSTALL.md

@@ -26,7 +26,7 @@ Pick your IDE and paste / click.
 
 **Claude Code** — one CLI command:
 ```bash
-claude mcp add-json eval '{"type":"stdio","command":"uvx","args":["--from","llm-evaluation-system","eval-mcp"]}' --scope user
+claude mcp add eval -s user -- uvx --from llm-evaluation-system eval-mcp
 ```
 
 **Cursor** — one-click deeplink: [Install eval-mcp in Cursor](cursor://anysphere.cursor-deeplink/mcp/install?name=eval&config=eyJjb21tYW5kIjoidXZ4IiwiYXJncyI6WyItLWZyb20iLCJsbG0tZXZhbHVhdGlvbi1zeXN0ZW0iLCJldmFsLW1jcCJdfQ==)

README.md

@@ -24,7 +24,7 @@ If multiple, ask the user which.
 
 Run the one-command install for that IDE:
 
-- **Claude Code**: `claude mcp add-json eval '{"type":"stdio","command":"uvx","args":["--from","llm-evaluation-system","eval-mcp"]}' --scope user`
+- **Claude Code**: `claude mcp add eval -s user -- uvx --from llm-evaluation-system eval-mcp`
 - **Cursor**: open `cursor://anysphere.cursor-deeplink/mcp/install?name=eval&config=eyJjb21tYW5kIjoidXZ4IiwiYXJncyI6WyItLWZyb20iLCJsbG0tZXZhbHVhdGlvbi1zeXN0ZW0iLCJldmFsLW1jcCJdfQ==` (or edit `~/.cursor/mcp.json`)
 - **VS Code**: `code --add-mcp '{"name":"eval","command":"uvx","args":["--from","llm-evaluation-system","eval-mcp"]}'`
 - **Kiro**: merge into `~/.kiro/settings/mcp.json` under `mcpServers.eval` — same JSON shape as Cursor. Back up first, atomic write.