jCodeMunch MCP Server Setup for Claude Code, Cursor and Other Apps

• Indexes a local folder of code

  Parses the source files in a folder and stores a symbol index on your machine, skipping files your .gitignore excludes. Run it once per project before asking questions.

  Try: “Index this repo with jcodemunch.”

  Write · index_folder

• Indexes a public GitHub repository

  Fetches the files of a GitHub repository by URL or owner/repo, parses them and saves the index locally. Summaries can use an AI model unless switched off.

  Try: “Index the github.com/expressjs/express repo.”

  Write · index_repo

• Finds functions, classes and methods by name or meaning

  Searches the indexed symbols so the assistant can locate the exact function it needs without reading whole files.

  Try: “Find the function that handles authentication.”

  Files · search_symbols

• Returns the exact code of one symbol

  Gives the byte-precise body of one function, class or method instead of the full file around it.

  Try: “Show me the source of the login handler.”

  Files · get_symbol_source

• Gathers the code a task needs in one call

  Works out what the task is about, picks anchor symbols and runs the right lookups under a token budget.

  Try: “Gather the context I need to add rate limiting to the API.”

  Files · assemble_task_context

• Plans which lookups to run before reading any code

  Routes a turn to the right tools before the first file is opened.

  Try: “Plan how to find where sessions expire.”

  Files · plan_turn

• Lists what imports a file or symbol

  Shows which files and symbols depend on a module.

  Try: “What imports the billing module?”

  Files · find_importers

• Shows what could break if you change something

  Lists affected files and symbols across indexed repos without an IDE running.

  Try: “What is the blast radius of changing parse_config?”

  Files · get_blast_radius

• Shows who calls a function and what it calls

  Returns the call tree around a function.

  Try: “Show the call hierarchy of process_order.”

  Files · get_call_hierarchy

• Shows a class's parents and children

  Returns the inheritance tree around a class.

  Try: “Show the class hierarchy for BaseHandler.”

  Files · get_class_hierarchy

• Finds code that nothing uses

  Lists symbols that appear to have no callers or importers.

  Try: “Find dead code in the utils package.”

  Files · find_dead_code

• Lists symbols changed in a diff

  Reports which functions and classes changed between versions.

  Try: “Which symbols changed in the last commit?”

  Files · get_changed_symbols

• Finds the riskiest code to touch

  Highlights symbols that stand out for complexity or churn.

  Try: “What are the hotspots in this repo?”

  Files · get_hotspots

• Finds code patterns across languages

  Matches structural patterns such as empty catch blocks, bare excepts, eval or exec calls and hardcoded secrets across the indexed languages.

  Try: “Find every empty catch block.”

  Files · search_ast

• Checks if a symbol is safe to edit

  Combines dependents, complexity and test coverage into a verdict and a recommended next step before you change a symbol.

  Try: “Is it safe to edit calculate_tax?”

  Files · check_edit_safe

• Checks if a symbol is safe to delete

  Reports who would break if the symbol disappeared.

  Try: “Can I delete the legacy_export function?”

  Files · check_delete_safe

• Scores the risk of a pull request

  Summarizes how risky a set of changes is.

  Try: “How risky is this PR?”

  Files · get_pr_risk_profile

• Plans a refactor with edit-ready blocks

  Produces a refactoring plan, with old and new text blocks the assistant can apply.

  Try: “Plan renaming UserSession to Session.”

  Files · plan_refactoring

• Shows tokens served and saved this session

  Reports how many tokens the session used and saved by retrieving symbols instead of files.

  Try: “How many tokens has jcodemunch saved me?”

  Read · get_session_stats

• Deletes a repo's saved index

  Removes the stored index and cached files for one repository, so the next index call rebuilds it. Your source files are not touched.

  Try: “Delete the jcodemunch index for the old-api repo.”

  Delete · invalidate_cache

• Lists the available actions

  Shows the catalog of actions in compact rows, so the assistant can find the right one without loading every tool.

  Try: “What can jcodemunch do?”

  Read · menu

• Runs any jcodemunch action by name

  The single entry point to the full catalog. It is read-only by default, and actions that change index or session state need an explicit allow flag.

  Try: “Order get_ranked_context for how login works.”

  Read · order

• Suggests the best action for a task

  Maps a plain-language task to ranked actions with ready-to-use arguments, and can run the top one in the same call.

  Try: “Route this task: find where invoices are generated.”

  Read · route

• Used by the assistant behind the scenes

  Shows the assistant how to use the tools

  Returns usage instructions the assistant is told to follow.

  Try: “Call the jcodemunch guide.”

  Read · jcodemunch_guide

• Tells the server which AI model is connected

  Lets the server tune its tool set to the model in use.

  Try: “Announce my model to jcodemunch.”

  Write · announce_model

• Switches between the small and full tool set

  Changes how many tools are exposed, from the six-tool front door to the full catalog.

  Try: “Switch jcodemunch to the full tool set.”

  Write · set_tool_tier

Watch out for

• Commercial use needs a paid license

  The license is free for non-commercial use only. Using it for paid work needs a one-time license from jMunch LLC. Read the license before using it at work. github.com

• It sends an anonymous savings counter by default

  The README says it sends a random ID and token totals, with no code, paths or queries. Set share_savings to false or JCODEMUNCH_SHARE_SAVINGS=0 to stop it. github.com

• One tool deletes a repo's saved index

  It removes the index and cache for a repository. Your source files are not changed, and the next index call rebuilds it. github.com

• The init command edits your client configs

  jcodemunch-mcp init writes MCP entries for clients it detects and installs hooks that keep the index fresh. Skip it if you want to edit configs yourself. github.com

Security advisories