Feature/bench tools

[rachana-promantia]

Summary

This PR adds two new MCP tools to the Developer Tools plugin for managing Frappe bench operations and exporting fixtures.

New Tools

bench_help

Returns all available bench operations with descriptions and required parameters

No input parameters needed

Acts as a discovery tool — call this first before bench_execute

bench_execute

Executes bench operations via a single action parameter. Supported actions:

list_apps — lists bench apps and site-installed apps separately

list_sites — lists all available sites on the bench

create_app — creates a new custom Frappe app on bench

install_app — installs a bench app onto the current site

uninstall_app — removes app from site only, keeps files on bench

remove_app — permanently removes app from bench (uninstalls from site + pip uninstall + deletes directory)

export_fixtures — exports DocType customizations as fixture JSON into a custom app

Key Design Decisions

remove_app handles complete cleanup — no ghost apps left behind

export_fixtures requires all three params (app_name, doctype, filters) — fails fast if missing

create_app and install_app are separate actions — follows standard bench behavior

list_apps returns bench_apps and site_apps separately — clear distinction

New Skill File

Added docs/skills/bench_tools.md — instruction manual for Claude on how to use these tools correctly.

Testing

All actions tested via MCP inspector and Claude Desktop including edge cases and error scenarios.