WolvenKit MCP (Y4rd13/wolvenkit-mcp) is an MCP server listed on the M8ven Trust Index. It scores 60 out of 100, grade C. It declares 45 tools. No publisher has claimed this listing.
MCP server that gives Claude Code access to WolvenKit for Cyberpunk 2077 modding. Extract archives, convert game files to JSON, inspect meshes and textures, manage mods, and build mod projects — all from your terminal.
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
How we verified
Verified is a snapshot. Live keeps it current, and builds your track record.
⚡ Connect GitHub → continuous verification on every pushwhy connect →Who stands behind it
Y4rd13
Source: Glama
Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →
Install from
The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.
unbundle_archiveExtract files from a Cyberpunk 2077 .archive file. Use the wildcard filter to extract only specific files (e.g., '*.mesh' for meshes). Without a filter, extracts everything (can be very large).
pack_archivePack a folder of REDengine files into a .archive file. The folder should contain the game file structure (e.g., base/characters/...).
archive_infoDisplay information about an .archive file — lists all files contained in it with sizes. Use this to explore what's inside an archive before extracting.
list_archivesList all .archive files in the game's content directory. Useful for finding which archive contains specific game files.
search_archivesSearch for files across ALL game archives by pattern. Finds which archive(s) contain files matching your query (e.g., 'katana', 'player', 'johnny'). Much faster than checking archives one by one.
list_installed_modsList all installed .archive mods in the game's mod directory, with file sizes.
mod_conflictsDetect conflicts between installed mods — shows which mods modify the same game files. Run this before installing new mods to avoid issues.
export_fileExport a REDengine file to a raw format (meshes to GLB, textures to PNG/TGA/DDS, etc.). Supports .mesh, .xbm, .mlmask, .wem, and other formats.
import_fileImport a raw file back into REDengine format (PNG/TGA → XBM, GLB → mesh, etc.). The file must follow WolvenKit naming conventions.
uncook_archiveExtract and export all assets from an archive in one step — unbundles and converts to raw formats (textures to PNG, meshes to GLB, etc.). Use wildcard filter to limit scope.
convert_to_jsonConvert a REDengine file (.mesh, .ent, .app, .mi, .mt, .inkatlas, etc.) to human-readable JSON. The JSON output is written next to the source file with a .json extension.
convert_from_jsonConvert a JSON file back to REDengine binary format. The JSON must have been generated by convert_to_json. Recreates the corresponding game file.
inspect_fileQuick inspection of a REDengine file — converts to JSON and returns a summary of its structure (type, chunks, dependencies) without the full content. Faster than convert_to_json for exploring.
get_game_fileOne-step shortcut: find a game file by path, extract it from the correct archive, and convert to JSON. No need to know which archive contains it. Example: 'base\gameplay\items\weapons\melee\katana\preset_katana_saburo.ent'.
batch_convertConvert multiple REDengine files to JSON in a single operation. Provide a directory and file extension filter.
patch_jsonModify specific fields in a REDengine JSON file without editing the entire file. Provide a JSON path and new value. After patching, use convert_from_json to rebuild the game file.
wolvenkit_statusCheck WolvenKit CLI availability, version, and configured paths. Works without the game running — useful for verifying the setup.
hash_valueCompute a FNV1a64 hash for a game path string. Useful for working with hashed file references in REDengine.
find_by_hashSearch for a game file by its FNV1a64 hash value. Useful when you have a hash from crash logs or game data and need to find the corresponding file.
analyze_performanceEstimate performance impact of a mod project by analyzing mesh vertex counts, texture memory, and file counts. Helps identify heavy assets.
decompile_scriptSearch for .reds (REDscript) or .script files in game archives. These contain game logic scripts.
generate_xlmapGenerate an ArchiveXL resource mapping YAML template. ArchiveXL is used for adding new resources (items, appearances) to the game.
diff_filesCompare two REDengine files by converting both to JSON and showing the differences. Useful for understanding what a mod changes vs the original game file.
get_file_dependenciesList all files referenced by a REDengine file (materials, meshes, textures, etc). Converts to JSON and extracts all file path references. Essential for knowing what to extract when modifying a file.
extract_mesh_infoGet mesh information without full export: submesh count, material references, bone count, vertex/index counts. Quick way to evaluate a mesh.
get_texture_infoGet texture (.xbm) information without exporting: resolution, format, mipmap count, compression type.
list_entity_componentsList all components of a .ent (entity) file: meshes, effects, animations, appearances, and their types.
find_appearancesSearch for .app (appearance) files related to an entity or keyword. Searches across all game archives.
find_materialsGiven a mesh file, list all materials it uses (.mi material instances and .mt material templates). Extracts from the mesh JSON.
list_inkatlas_slotsList all texture slots in a .inkatlas file (UI texture atlases). Shows slot names and texture references.
get_animation_listList available animations in a .anims or .rig file. Shows animation names, durations, and bone counts.
search_game_filesSearch for game files by extension and name pattern within a specific archive. More targeted than search_archives — filters by file type.
backup_archiveCreate a backup of a game archive or mod archive before modifying it. Copies to a .bak file alongside the original.
restore_archiveRestore a game archive from its .bak backup file.
compare_archivesCompare a mod archive against the original game archive. Shows which files are added, removed, or modified.
merge_archivesMerge multiple archive source directories into a single .archive file.
install_mod_from_urlDownload and install a mod archive from a direct URL. Downloads to the game's mod directory. Only supports direct download links (not Nexus pages).
create_mod_projectCreate a WolvenKit mod project directory structure. Sets up the standard folder layout for a Cyberpunk 2077 mod.
build_modBuild a mod by packing the source/archive directory into a .archive file and optionally installing it to the game's mod directory.
list_project_filesList files in a WolvenKit mod project, organized by directory.
copy_to_projectExtract a game file directly into a mod project's source/archive directory. One-step shortcut for unbundle + copy. Maintains the game path structure.
validate_modValidate a mod project: check directory structure, verify files exist, report potential issues.
strip_unusedAnalyze a mod project and identify files that are not referenced by any other file. Helps reduce mod size by finding orphaned assets.
get_cooked_sizeEstimate the final packed size of a mod project by measuring the source/archive directory.
generate_tweakxmlGenerate a TweakXL YAML template for creating or modifying a TweakDB record. Provides a starting template you can customize.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
CP77_GAME_DIRe "=/path/to/Cyberpunk 2077" \CP77_MOD_DIRe "=/path/to/Cyberpunk 2077/archive/pc/mod" \WOLVENKIT_CLIe "=cp77tools" \Tool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
45/45 tools missing one or more hints — unbundle_archive (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); pack_archive (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); archive_info (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +42 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Tool inputs are validated
33/45 tool handlers declare input schemas (73%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tests exist
No test files found
Add tests that exercise each declared tool.
Production dependencies are patched
0 critical, 3 high severity in production deps — @modelcontextprotocol/sdk@1.12.1 (high), @modelcontextprotocol/sdk@1.12.1 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.
[](https://m8ven.ai/mcp/y4rd13/wolvenkit-mcp)?variant=verified from the URL.Vetting this one by hand? Tool Check is an MCP that scores other MCPs. Add it once and ask Claude, ChatGPT, or any MCP client to grade a server, surface CVEs, check the publisher, and suggest safer alternatives — before you install.
https://m8ven.ai/api/mcp/tool-check