MCP Debugger
debugmcp/mcp-debugger
A skill your agent uses when investigating a bug, failing test, or unexpected runtime behavior and the mcp-debugger MCP server is available — drives real step-through debuggers (breakpoints, stack…
A skill your agent uses when debugging UE C++ crashes, runtime bugs, or unexpected behavior with Rider MCP available.
Install Ue Live Debugging
$ npx skills add JasonMa0012/MooaToon --skill ue-live-debugging -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install JasonMa0012/MooaToon ue-live-debugging --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/JasonMa0012/MooaToon.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.codex/skills/ue-live-debugging .claude/skills/ue-live-debugging && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "ue-live-debugging" agent skill from https://github.com/JasonMa0012/MooaToon/tree/main/.codex/skills/ue-live-debugging into .claude/skills/ue-live-debugging/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ue-live-debugging", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/JasonMa0012/MooaToon/tree/main/.codex/skills/ue-live-debuggingType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add JasonMa0012/MooaToon --skill ue-live-debugging -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install JasonMa0012/MooaToon ue-live-debugging --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/JasonMa0012/MooaToon.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.codex/skills/ue-live-debugging .agents/skills/ue-live-debugging && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "ue-live-debugging" agent skill from https://github.com/JasonMa0012/MooaToon/tree/main/.codex/skills/ue-live-debugging into .agents/skills/ue-live-debugging/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ue-live-debugging", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add JasonMa0012/MooaToon --skill ue-live-debugging -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install JasonMa0012/MooaToon ue-live-debugging --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/JasonMa0012/MooaToon.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.codex/skills/ue-live-debugging .cursor/skills/ue-live-debugging && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "ue-live-debugging" agent skill from https://github.com/JasonMa0012/MooaToon/tree/main/.codex/skills/ue-live-debugging into .cursor/skills/ue-live-debugging/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ue-live-debugging", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/JasonMa0012/MooaToon.git --path .codex/skills/ue-live-debugging--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add JasonMa0012/MooaToon --skill ue-live-debugging -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install JasonMa0012/MooaToon ue-live-debugging --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/JasonMa0012/MooaToon.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.codex/skills/ue-live-debugging .gemini/skills/ue-live-debugging && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "ue-live-debugging" agent skill from https://github.com/JasonMa0012/MooaToon/tree/main/.codex/skills/ue-live-debugging into .gemini/skills/ue-live-debugging/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ue-live-debugging", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install JasonMa0012/MooaToon ue-live-debuggingInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add JasonMa0012/MooaToon --skill ue-live-debugging -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/JasonMa0012/MooaToon.git skills-src && mkdir -p .github/skills && cp -r skills-src/.codex/skills/ue-live-debugging .github/skills/ue-live-debugging && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "ue-live-debugging" agent skill from https://github.com/JasonMa0012/MooaToon/tree/main/.codex/skills/ue-live-debugging into .github/skills/ue-live-debugging/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ue-live-debugging", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add JasonMa0012/MooaToon --skill ue-live-debugging -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install JasonMa0012/MooaToon ue-live-debugging --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/JasonMa0012/MooaToon.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.codex/skills/ue-live-debugging .opencode/skills/ue-live-debugging && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "ue-live-debugging" agent skill from https://github.com/JasonMa0012/MooaToon/tree/main/.codex/skills/ue-live-debugging into .opencode/skills/ue-live-debugging/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "ue-live-debugging", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
ue-live-debugging- GitHub stars
- 749
- Token cost
- ~2.9k tokens
- SKILL.md length
- 1,344 words
- Files
- 7
- Skills in repo
- 4
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
A skill your agent uses when debugging UE C++ crashes, runtime bugs, or unexpected behavior with Rider MCP available.
- Works in 12 steps: UE Project Check → Task Is Debugging-Related Check → Build Configuration Check — Required… → …
- Debugging UE C++ crashes
- SKILL.md covers GATE — mandatory checks before…, Path Selection, Checklist and Workflow
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Ue Live Debugging is an agent skill from JasonMa0012/MooaToon. Use when debugging UE C++ crashes, runtime bugs, or unexpected behavior with Rider MCP available. Value over bash/grep: analyzecalls traces C++ call hierarchies (ReSharper backend); getfileproblems surfaces IDE-detected issues; getsymbolinfo confirms API contracts; xdebugsetbreakpoint sets live breakpoints; ueexecutepython queries live PIE state. DO NOT TRIGGER for: pure build errors with no runtime component, net-new feature work, Blueprint-only work. When Rider MCP is unavailable, runs in reduced mode —…
Its SKILL.md is about 2.9k tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files (for example `reference/crash-patterns.md`, `reference/rider-debug-tools.md` and `reference/rider-mcp-tools.md`).
It sits in Development, covering Responsive design, Debugging and API design. It works with Model Context Protocol, C++, Bash and Python. The repository describes itself as: The Ultimate Solution for Cinematic Toon Rendering in UE5.
When your agent uses it
- Debugging UE C++ crashes
- Unexpected behavior with Rider MCP available
- : pure build errors with no runtime component
- Net-new feature work
Example prompts
- “/ue-live-debugging”
Requirements
- Python 3
- Pre-approved tools (allowed-tools): Read, Glob, Grep, Bash, Write, Edit, ToolSearch
Workflow steps
12 steps, taken from the step headings in SKILL.md.
- UE Project Check
- Task Is Debugging-Related Check
- Build Configuration Check — Required Before Setting C++ Breakpoints
- Rider MCP Availability Check
- Triage: Classify the Entry Point
- Locate the Suspect Code
- Trace the Call Hierarchy
- Get Symbol Info for Context
- Run IDE Diagnostics on Suspect Files
- Set Breakpoints and Launch the Debugger
- Add Targeted Instrumentation (if needed)
- Fix
What it can do on your machine
Read from SKILL.md and the folder at commit 23a255b. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
ReadGlobGrepBashWriteEditToolSearch
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Ue Live Debugging loads about 2.9k tokens when it runs. Until then it costs about 145 tokens; SKILL.md has 1,344 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
allowed-tools: Read, Glob, Grep, Bash, Write, Edit, ToolSearch
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,344 words (~2,915 tokens).
“Rider MCP debugging workflow: find the suspect symbol, trace who calls it, see what the IDE already knows is wrong.”
- name
- ue-live-debugging
- allowed-tools
- Read, Glob, Grep, Bash, Write, Edit, ToolSearch
- metadata.argument-hint
- [bug description, suspect function/class, or crash context]
Files
SKILL.md and 6 other files in .codex/skills/ue-live-debugging of JasonMa0012/MooaToon.
- SKILL.md
- .intellij-skill-source
- reference/crash-patterns.md
- reference/rider-debug-tools.md
- reference/rider-mcp-tools.md
- reference/ue-debug-patterns.md
- reference/ue-python-inspection.md
Open the folder on GitHubat commit 23a255b
Compare with similar skills
Ue Live Debugging next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Ue Live Debugging this skillJasonMa0012/MooaToon | 749 | — | ~2.9k | Automated safety check: Notes | Custom licence | |
| MCP Debuggerdebugmcp/mcp-debugger | 171 | — | ~3.8k | Automated safety check: Pass | MIT | |
| SlintMoosync/Moosync | 259 | — | ~2.4k | Automated safety check: Pass | GPL-3.0 | |
| Gearcoleco Debuggingdrhelius/Gearcoleco | 141 | — | ~3.5k | Automated safety check: Pass | GPL-3.0 | |
| Dbgtheodo-group/debug-that | 158 | — | ~2.2k | Automated safety check: Pass | MIT | |
| Java DebugAmplicode/spring-skills | 126 | — | ~2.7k | Automated safety check: Pass | None |
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Ue Code Authoring
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A skill your agent uses when writing or modifying UE C++ (classes, actors, components, subsystems, interfaces, function libraries) with Rider MCP available.
Ue Test Authoring
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A skill your agent uses when writing or modifying UE automated tests (Automation, CQTest, Functional, Gauntlet, LowLevel) with Rider MCP available.
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Used when users need to upgrade UE branch versions, for example from UE 5.7 to UE 5.8.
Related
Categories
Questions about Ue Live Debugging
What does Ue Live Debugging do?
A skill your agent uses when debugging UE C++ crashes, runtime bugs, or unexpected behavior with Rider MCP available. Ue Live Debugging is an agent skill from JasonMa0012/MooaToon. Use when debugging UE C++ crashes, runtime bugs, or unexpected behavior with Rider MCP available.
When should I use Ue Live Debugging?
Ue Live Debugging fits situations like: debugging UE C++ crashes; unexpected behavior with Rider MCP available; : pure build errors with no runtime component; net-new feature work.
How do I install Ue Live Debugging in Claude Code?
Run `npx skills add JasonMa0012/MooaToon --skill ue-live-debugging -a claude-code`. Or copy the skill folder (.codex/skills/ue-live-debugging in JasonMa0012/MooaToon) into .claude/skills/ue-live-debugging in your project. Claude Code loads it when a task matches its description.
How do I install Ue Live Debugging in Codex?
Run `npx skills add JasonMa0012/MooaToon --skill ue-live-debugging -a codex`. Or copy the skill folder (.codex/skills/ue-live-debugging in JasonMa0012/MooaToon) into .agents/skills/ue-live-debugging in your project. Codex loads it when a task matches its description.
Can I use Ue Live Debugging in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add JasonMa0012/MooaToon --skill ue-live-debugging -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/ue-live-debugging, .gemini/skills/ue-live-debugging, .github/skills/ue-live-debugging and .opencode/skills/ue-live-debugging in your project.
What does Ue Live Debugging need to run?
SKILL.md names no scripts, command-line tools or credentials: Ue Live Debugging is instructions for the agent only. Our summary lists: Python 3. Its frontmatter pre-approves these tools: Read, Glob, Grep, Bash, Write, Edit, ToolSearch.
Does Ue Live Debugging access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Ue Live Debugging safe to install?
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does Ue Live Debugging use?
Ue Live Debugging has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Ue Live Debugging use?
About 2.9k tokens (SKILL.md is roughly 12k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Ue Live Debugging?
Skills that share tags, products or a category with Ue Live Debugging: MCP Debugger (debugmcp/mcp-debugger, 171 stars), Slint (Moosync/Moosync, 259 stars), Gearcoleco Debugging (drhelius/Gearcoleco, 141 stars) and Dbg (theodo-group/debug-that, 158 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Ue Live Debugging?
JasonMa0012 (a GitHub user) maintains it in JasonMa0012/MooaToon, which has 749 GitHub stars. The repository holds 4 skills in this directory. The repository was last updated on September 18, 2026.
Source: JasonMa0012/MooaToon on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.