Root Cause Investigation
garrytan/gstack
Debugs in four phases (investigate, analyze, hypothesize, implement) under one rule: no fix is made until the root cause is found.
Investigate a bug or failing behavior and isolate the likely cause.
No licenceAuto-check passed
Install Debug
$ npx skills add terrense/LilBot-agent --skill debug -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install terrense/LilBot-agent debug --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/terrense/LilBot-agent.git skills-src && mkdir -p .claude/skills && cp -r skills-src/lilbot/skills/bundled/debug .claude/skills/debug && 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 "debug" agent skill from https://github.com/terrense/LilBot-agent/tree/main/lilbot/skills/bundled/debug into .claude/skills/debug/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "debug", 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/terrense/LilBot-agent/tree/main/lilbot/skills/bundled/debugType 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 terrense/LilBot-agent --skill debug -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install terrense/LilBot-agent debug --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/terrense/LilBot-agent.git skills-src && mkdir -p .agents/skills && cp -r skills-src/lilbot/skills/bundled/debug .agents/skills/debug && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "debug" agent skill from https://github.com/terrense/LilBot-agent/tree/main/lilbot/skills/bundled/debug into .agents/skills/debug/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "debug", 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 terrense/LilBot-agent --skill debug -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install terrense/LilBot-agent debug --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/terrense/LilBot-agent.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/lilbot/skills/bundled/debug .cursor/skills/debug && 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 "debug" agent skill from https://github.com/terrense/LilBot-agent/tree/main/lilbot/skills/bundled/debug into .cursor/skills/debug/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "debug", 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/terrense/LilBot-agent.git --path lilbot/skills/bundled/debug--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 terrense/LilBot-agent --skill debug -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install terrense/LilBot-agent debug --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/terrense/LilBot-agent.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/lilbot/skills/bundled/debug .gemini/skills/debug && 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 "debug" agent skill from https://github.com/terrense/LilBot-agent/tree/main/lilbot/skills/bundled/debug into .gemini/skills/debug/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "debug", 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 terrense/LilBot-agent debugInstalls 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 terrense/LilBot-agent --skill debug -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/terrense/LilBot-agent.git skills-src && mkdir -p .github/skills && cp -r skills-src/lilbot/skills/bundled/debug .github/skills/debug && 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 "debug" agent skill from https://github.com/terrense/LilBot-agent/tree/main/lilbot/skills/bundled/debug into .github/skills/debug/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "debug", 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 terrense/LilBot-agent --skill debug -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install terrense/LilBot-agent debug --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/terrense/LilBot-agent.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/lilbot/skills/bundled/debug .opencode/skills/debug && 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 "debug" agent skill from https://github.com/terrense/LilBot-agent/tree/main/lilbot/skills/bundled/debug into .opencode/skills/debug/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "debug", 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
debug- GitHub stars
- 121
- Token cost
- ~185 tokens
- SKILL.md length
- 60 words
- Files
- 1
- Skills in repo
- 7
- Repo updated
- First seen
- Licence
- None found
At a glance
Investigate a bug or failing behavior and isolate the likely cause.
- Works in 5 steps: Reconstruct the symptom and expected… → Find the narrowest relevant code path. → Gather evidence from tests, logs, diffs,… → …
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Debug is an agent skill from terrense/LilBot-agent. Investigate a bug or failing behavior and isolate the likely cause.
Its SKILL.md is about 190 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
The repository describes itself as: Try to make a personal assistant based on agent tech and harness engineering stuff.
Example prompts
- “/debug”
Requirements
- Pre-approved tools (allowed-tools): read_file, list_dir, grep_files, file_search, git_status, git_diff, run_tests, agent_open, agent_eval
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Reconstruct the symptom and expected behavior.
- Find the narrowest relevant code path.
- Gather evidence from tests, logs, diffs, and nearby code.
- State the most likely root cause and confidence.
- Recommend the smallest fix and validation.
What it can do on your machine
Read from SKILL.md and the folder at commit 32be16c. 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:
read_filelist_dirgrep_filesfile_searchgit_statusgit_diffrun_testsagent_openagent_eval
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
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
Debug loads about 185 tokens when it runs. Until then it costs about 18 tokens; SKILL.md has 60 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 passed
The automated check found no risky patterns in SKILL.md.
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
Without a licence we can't republish the file, so here is its outline and opening line. It has 60 words (~185 tokens).
- name
- debug
- allowed-tools
- read_file, list_dir, grep_files, file_search, git_status, git_diff, run_tests, agent_open, agent_eval
- when_to_use
- Use when behavior is broken, tests fail, errors are unclear, or the user asks for debugging help.
- context
- fork
- agent
- explore
Files
Just SKILL.md in lilbot/skills/bundled/debug of terrense/LilBot-agent.
Open the folder on GitHubat commit 32be16c
Compare with similar skills
Debug 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 |
|---|---|---|---|---|---|---|
| Debug this skillterrense/LilBot-agent | 121 | — | ~185 | Automated safety check: Pass | None | |
| Root Cause Investigationgarrytan/gstack | 136k | — | ~12k | Automated safety check: Notes | MIT | |
| Root Cause Debugginggarrytan/gstack | 136k | — | ~1.4k | Automated safety check: Pass | MIT | |
| Debugging and Error Recoveryaddyosmani/agent-skills | 102k | 1 repos | ~2.6k | Automated safety check: Pass | MIT | |
| Hypothesis-Driven Debuggingcode-yeongyu/oh-my-openagent | 70k | — | ~3.2k | Automated safety check: Pass | Custom licence | |
| Debugasgeirtj/system_prompts_leaks | 69k | — | ~439 | Automated safety check: Pass | CC0-1.0 |
Similar skills
Root Cause Debugging
garrytan/gstack
Investigates bugs, errors and stack traces in phases and requires a root-cause hypothesis to be confirmed before any fix is written.
Debugging and Error Recovery
addyosmani/agent-skills
Applies a stop-the-line rule and a step-by-step triage when tests fail, builds break or something stops working, aiming at the root cause instead of guesses.
Hypothesis-Driven Debugging
code-yeongyu/oh-my-openagent
Runs a hypothesis-driven debugging loop for crashes, hangs and silent failures in any language, grounding every claim in runtime evidence and locking the fix with a test.
Debug
asgeirtj/system_prompts_leaks
Enable debug logging for this session and help diagnose issues
Parallel Debugging
wshobson/agents
Debug complex issues using competing hypotheses with parallel investigation, evidence collection, and root cause arbitration.
More from terrense/LilBot-agent
Skillify
terrense/LilBot-agent
Turn a repeated workflow into a reusable LilBot SKILL.md. An agent skill from terrense/LilBot-agent.
Batch
terrense/LilBot-agent
Break a large request into a tracked batch of smaller tasks.
Claude API
terrense/LilBot-agent
Help with Claude/LLM API usage, models, and integration patterns.
Delegate
terrense/LilBot-agent
Use subagents to split exploration, implementation, review, and verification work.
Documents
terrense/LilBot-agent
Create, inspect, edit, or convert document-style deliverables.
Feishu
terrense/LilBot-agent
Work with Feishu or Lark bots, docs, sheets, bitables, approval flows, and API setup.
Questions about Debug
What does Debug do?
Investigate a bug or failing behavior and isolate the likely cause. Debug is an agent skill from terrense/LilBot-agent. Investigate a bug or failing behavior and isolate the likely cause.
How do I install Debug in Claude Code?
Run `npx skills add terrense/LilBot-agent --skill debug -a claude-code`. Or copy the skill folder (lilbot/skills/bundled/debug in terrense/LilBot-agent) into .claude/skills/debug in your project. Claude Code loads it when a task matches its description.
How do I install Debug in Codex?
Run `npx skills add terrense/LilBot-agent --skill debug -a codex`. Or copy the skill folder (lilbot/skills/bundled/debug in terrense/LilBot-agent) into .agents/skills/debug in your project. Codex loads it when a task matches its description.
Can I use Debug 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 terrense/LilBot-agent --skill debug -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/debug, .gemini/skills/debug, .github/skills/debug and .opencode/skills/debug in your project.
What does Debug need to run?
SKILL.md names no scripts, command-line tools or credentials: Debug is instructions for the agent only. Its frontmatter pre-approves these tools: read_file, list_dir, grep_files, file_search, git_status, git_diff, run_tests, agent_open, agent_eval.
Does Debug 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 Debug safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Debug use?
No licence was found for Debug or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Debug use?
About 185 tokens (SKILL.md is roughly 740 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 Debug?
Skills that share tags, products or a category with Debug: Root Cause Investigation (garrytan/gstack, 136k stars), Root Cause Debugging (garrytan/gstack, 136k stars), Debugging and Error Recovery (addyosmani/agent-skills, 102k stars) and Hypothesis-Driven Debugging (code-yeongyu/oh-my-openagent, 70k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Debug?
terrense (a GitHub user) maintains it in terrense/LilBot-agent, which has 121 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on July 8, 2026.
Source: terrense/LilBot-agent on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.