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jCodemunch MCP MCP Server

Token-efficient code exploration via tree-sitter AST parsing. 70+ languages, 86-99% token savings.

Publisher claimed. No tool list reported, and Pod has not connected to this server.

Status

Pod has not dialled jCodemunch MCP yet, so everything on this page is what its publisher reported rather than what we observed. Registries describe servers; they do not connect to them. Until a check runs, treat the tool list below as a claim.

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Published as jcodemunch-mcp on pypi. Runs locally.

Known issues

221 problems reported by people outside the maintainer team. Issues filed by the project's own owners, members and collaborators are excluded — those are release checklists and internal refactors, not things that will go wrong for you. Showing 12.

Most discussed

Windows watcher incremental reindex is ~10s while MCP index_file takes ~0.2s

Description

On Windows, the filesystem watcher (jcodemunch-mcp watch-all or jcodemunch-mcp watch) detects a modified file immediately, but updating the jCodeMunch index after a single-file change takes around 10 seconds.

Calling the index_file MCP tool directly for the exact same file completes in approximately 0.2 seconds.

This seems to indicate that the bottleneck is somewhere in the watcher → incremental indexing path rather than in parsing/indexing the changed file itself.

Read the thread · 2026-08-28 · open · external user · 12 comments

Add an adaptive, generation-safe data path for large repositories

JCodeMunch currently pays two related large-repository costs in several paths:

  1. A tool can hydrate the complete code index even when it needs only a symbol, file, or small candidate set.
  2. Semantic tools can load and score the complete embedding collection through Python objects even when a smaller fetch or a packed, vectorized pass would be sufficient.

The strongest design I found is one adaptive pipeline, not one global cache and not NumPy everywhere. Each request should read only w

Read the thread · 2026-08-01 · closed · outside contributor · 9 comments

BUG: get_file_outline()

Hi,

This is not a proper bug report, I will update it at a later time. For me (probable config dependent) i get a lot of: "The outline came back empty" messages from the models (Claude, GPT etc).

Like this.

"jcm- get_file_outline (PRJ)(repo: "local/PRJ-acfbc7e7", file_paths:
  ["tools/Labels/AppLabels.py","appGUI/NewEmailWidget.py","tools/MessageViewer.py"])
  ⎿  #MUNCH/1 tool=get_file_outline enc=fo1

     repo=local/PRJ-acfbc7e7 __tables="s:symbols:id|name|kind|signature|line|end_line|p

[Read the thread](https://github.com/jgravelle/jcodemunch-mcp/issues/319) · 2026-05-29 · closed · outside contributor · 6 comments

### PyPI install unavailable — install via git+https or the GitHub-release wheel

This was working until today. Both pip and uvx can't find the library now
```bash
❯ uvx jcodemunch-mcp config --check
  × No solution found when resolving tool dependencies:
  ╰─▶ Because there are no versions of jcodemunch-mcp and you require jcodemunch-mcp, we can conclude that your requirements are unsatisfiable.

❯ python -m pip install jcodemunch-mcp==1.108.20
ERROR: Could not find a version that satisfies the requirement jcodemunch-mcp==1.108.20 (from versions: none)

❯ python -m pip insta

[Read the thread](https://github.com/jgravelle/jcodemunch-mcp/issues/308) · 2026-05-19 · closed · external user · 24 comments

### Config file ".jcodemunch.jsonc" is ignored in project

## Steps to reproduce:

( system: Ubuntu )

1. Create file ".jcodemunch.jsonc" in project root with content like this:

{ "extra_ignore_patterns": ["docs/legacy/"] }


2. Run command:

jcodemunch-mcp config --check

...

Checks ✓ config.jsonc valid: /home/myuser/.code-index/config.jsonc ✓ index storage writable: /home/myuser/.code-index ...

^ as you see the file ".jcodemunch.jsonc" is not mentioned - so that is already a red flag

3. Try to index with DEBUG log level:

Read the thread · 2026-05-14 · closed · external user · 8 comments

Most recent

Dead-code axes degenerate on Node/TS repos: v2 returns [] without entry points; find_dead_code counts docs/lockfile artifacts

jcodemunch-mcp 1.108.305, SQLite backend, TypeScript/React repo

Two related problems make the dead-code axes unusable on this repo:

  1. get_dead_code_v2 returns dead_symbols: [] with signal_warning: "2 of 3 signals do not discriminate on this repository and were not counted" and framework_warning: "No standard entry points detected (e.g. main.py, app.py, __main__.py)". Entry-point detection appears Python-only (main.py/app.py/main.py); for a Node/Next.js repo no entry points are

Read the thread · 2026-08-28 · closed · outside contributor · 3 comments

find_references: are type-only imports indexed? suspected cross-file reference misses for TS types

jcodemunch-mcp 1.108.305, SQLite backend, TypeScript 5.x repo

During refactor planning we use find_references/check_references to enumerate cross-file usages of exported types before moving them. Two of three spot-checked identifiers resolved correctly (CreoJobBuild: 2 refs found; LayoutGestureBinding: 2 refs found, third hit is the defining file). But a prior audit observed missed cross-file type-only references for CreoJobBuild, DraftHistoryEntry (defined in `src/hooks/Fra

Read the thread · 2026-08-28 · closed · outside contributor · 3 comments

Coupling instability counts framework entry points (Next.js route.ts) as unstable=1.0 modules

jcodemunch-mcp 1.108.305, SQLite backend, Next.js App Router repo

Coupling/instability treats framework entry points as ordinary modules. In this repo, 203 of 366 unstable files are src/app/api/**/route.ts files, and 126 of those have zero importers — instability 1.0 by construction (Ce/(Ca+Ce) with Ca=0), purely because Next.js registers them as HTTP endpoints. No code ever imports a route handler, so the import-graph formula cannot classify them as stable.

find_dead_code alre

Read the thread · 2026-08-28 · closed · outside contributor · 3 comments

search_ast returns zero matches for ALL languages — encoder schema declares 'results' but tool returns 'matches' (schema/producer key mismatch)

Summary

search_ast returns zero matches for every language and every preset/category, not just C#. The compact encoder schema (encoding/schemas/search_ast.py) declares table key results and scalar result_count, but the tool (tools/search_ast.py) returns matches and total_matches. The encoder's response.get("results", []) finds nothing and silently produces an empty table.

This is the same class of bug as the search_text #246 fix (flat columns declared, nested/different

Read the thread · 2026-08-26 · closed · external user · 2 comments

Counter order gate rejections return an error body with isError=False, and have since v1.108.74 shipped the contract

The one thing that is wrong

order refuses a call two ways: the action is not in the catalog, or the action changes state and allow_state_change was not passed. Both return a JSON body whose only key is error. Neither sets isError.

{"error": "Unknown action 'no_such_action_xyz'. Call 'menu' (optionally with a query) to browse."}

An MCP client that branches on isError, which is exactly what v1.108.74 added the flag for, reads that as a successful call whose r

Read the thread · 2026-08-26 · closed · outside contributor · 4 comments

_call_ok starts true and three of four error exits never clear it, so failed calls record ok=1

The one thing that is wrong

_call_tool_impl tracks the outcome of a call in a local flag, _call_ok, initialised to True at server.py:5456. The finally at the bottom persists that flag as the ok column ([server.py:7198-7209](https://github.com/jgravelle/jcodemunch-mcp/blob/610eb2cfdad865688a197ee7d899d3bded8f5273/src/jcodemunch_mcp/server.py

Read the thread · 2026-08-26 · closed · outside contributor · 3 comments

from . import <sibling> resolves to __init__.py, so 20 live files in this repo are reported dead

The one thing that is wrong

from . import receipts in evidence/producers.py is a dependency on evidence/receipts.py. JCodeMunch records it as a dependency on evidence/__init__.py instead, and the edge to receipts.py is never built.

The shipped source uses that form 49 times. Re-indexing this repository with only the import specifier changed, nothing else, drops find_dead_code(granularity="file") from 42 dead files to 22. The other 20, runtime_identity.py and nine `par

Read the thread · 2026-08-25 · closed · outside contributor · 3 comments

See all 23 reports Pod holds for jCodemunch MCP — of 221 qualified upstream.

Firsthand observations

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  • 221 problems reported from outside the maintainer team
  • No tool list published — Pod has not verified what it exposes
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