TDD
fossasia/eventyay-interpretation
Test-driven development. An agent skill from fossasia/eventyay-interpretation.
Diagnoses an unexplained software failure through reproduction, competing hypotheses, discriminating checks, and a causal explanation.
Install Hai Debug
$ npx skills add hylarucoder/hai-stack --skill hai-debug -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install hylarucoder/hai-stack hai-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/hylarucoder/hai-stack.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/hai-debug .claude/skills/hai-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 "hai-debug" agent skill from https://github.com/hylarucoder/hai-stack/tree/main/skills/hai-debug into .claude/skills/hai-debug/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hai-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/hylarucoder/hai-stack/tree/main/skills/hai-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 hylarucoder/hai-stack --skill hai-debug -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install hylarucoder/hai-stack hai-debug --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hylarucoder/hai-stack.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/hai-debug .agents/skills/hai-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 "hai-debug" agent skill from https://github.com/hylarucoder/hai-stack/tree/main/skills/hai-debug into .agents/skills/hai-debug/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hai-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 hylarucoder/hai-stack --skill hai-debug -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install hylarucoder/hai-stack hai-debug --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hylarucoder/hai-stack.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/hai-debug .cursor/skills/hai-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 "hai-debug" agent skill from https://github.com/hylarucoder/hai-stack/tree/main/skills/hai-debug into .cursor/skills/hai-debug/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hai-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/hylarucoder/hai-stack.git --path skills/hai-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 hylarucoder/hai-stack --skill hai-debug -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install hylarucoder/hai-stack hai-debug --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hylarucoder/hai-stack.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/hai-debug .gemini/skills/hai-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 "hai-debug" agent skill from https://github.com/hylarucoder/hai-stack/tree/main/skills/hai-debug into .gemini/skills/hai-debug/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hai-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 hylarucoder/hai-stack hai-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 hylarucoder/hai-stack --skill hai-debug -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/hylarucoder/hai-stack.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/hai-debug .github/skills/hai-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 "hai-debug" agent skill from https://github.com/hylarucoder/hai-stack/tree/main/skills/hai-debug into .github/skills/hai-debug/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hai-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 hylarucoder/hai-stack --skill hai-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 hylarucoder/hai-stack hai-debug --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/hylarucoder/hai-stack.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/hai-debug .opencode/skills/hai-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 "hai-debug" agent skill from https://github.com/hylarucoder/hai-stack/tree/main/skills/hai-debug into .opencode/skills/hai-debug/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hai-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
hai-debug- GitHub stars
- 380
- Token cost
- ~1k tokens
- SKILL.md length
- 453 words
- Files
- 4 (incl. references)
- Skills in repo
- 18
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Diagnoses an unexplained software failure through reproduction, competing hypotheses, discriminating checks, and a causal explanation.
- Works in 8 steps: Establish expected versus actual… → Reproduce on an isolated local fixture… → Trace the symptom backward through… → …
- 排障、根因分析、偶发失败、环境差异、重复执行
- SKILL.md covers Principle, Workflow, Constraints and stop rules and Handoffs
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Hai Debug is an agent skill from hylarucoder/hai-stack. Diagnoses an unexplained software failure through reproduction, competing hypotheses, discriminating checks, and a causal explanation. Use for 排障、根因分析、偶发失败、环境差异、重复执行, or a bug whose cause is unclear. Return observed evidence, ruled-out hypotheses, cause/confidence, and a regression target; fix and verify only when the request includes fixing. Use hai-tdd when the cause and desired behavior are already known, and hai-architecture for change complexity without a malfunction.
Its SKILL.md is about 1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including reference files (for example `SKILL.zh_CN.md`, `agents/openai.yaml` and `references/output-template.md`).
It sits in Testing & QA, covering Test-driven development.
When your agent uses it
- 排障、根因分析、偶发失败、环境差异、重复执行
- A bug whose cause is unclear
Example prompts
- “Use the hai-debug skill to diagnose an unexplained software failure through reproduction, competing hypotheses, discriminating checks, and a causal…”
- “/hai-debug”
Workflow steps
8 steps, taken from the first numbered list in SKILL.md.
- Establish expected versus actual behavior, scope, timing, environment/version, and requested
- Reproduce on an isolated local fixture when possible. Record inputs, preconditions, command,
- Trace the symptom backward through callers, state/config, persistence, and external boundaries.
- Form a small set of plausible competing hypotheses. For each, record supporting/conflicting
- Run the highest-information safe check, update confidence, and eliminate contradicted
- Explain the causal chain: precondition → faulty decision/state → observable symptom.
- If only diagnosis was requested, stop with the cause and a proposed repair/regression target.
- Deliver using references/output-template.md. Separate symptom mitigation from root-cause
What it can do on your machine
Read from SKILL.md and the folder at commit a6c7ed2. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
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
Hai Debug loads about 1k tokens when it runs, and up to ~1.2k if it reads all its reference files. Until then it costs about 122 tokens; SKILL.md has 453 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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 453 words (~1,002 tokens).
“For Chinese readers, see SKILL.zh_CN.md. English is the execution source of truth. Status: trial. The method has not yet demonstrated improvement across representative real tasks.”
- name
- hai-debug
Files
SKILL.md and 3 other files (references) in skills/hai-debug of hylarucoder/hai-stack.
- SKILL.md
- SKILL.zh_CN.md
- agents/openai.yaml
- references/output-template.md
Open the folder on GitHubat commit a6c7ed2
Compare with similar skills
Hai 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 |
|---|---|---|---|---|---|---|
| Hai Debug this skillhylarucoder/hai-stack | 380 | — | ~1k | Automated safety check: Pass | Custom licence | |
| TDDfossasia/eventyay-interpretation | 1.6k | 28 repos | ~1.1k | Automated safety check: Pass | Apache-2.0 | |
| TDD WorkflowhellangleZ/burn-in-cceverywhere-ralph | 112 | 11 repos | ~2.4k | Automated safety check: Pass | None | |
| TDDsanity-io/sanity | 6.4k | 20 repos | ~1k | Automated safety check: Pass | MIT | |
| Test Driven Developmentfarm-fe/farm | 5.6k | 49 repos | ~2.5k | Automated safety check: Pass | MIT | |
| Tapd Story PipelineTencentBlueKing/bk-bcs | 840 | — | ~2.6k | Automated safety check: Pass | Custom licence |
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Categories
Questions about Hai Debug
What does Hai Debug do?
Diagnoses an unexplained software failure through reproduction, competing hypotheses, discriminating checks, and a causal explanation. Hai Debug is an agent skill from hylarucoder/hai-stack. Diagnoses an unexplained software failure through reproduction, competing hypotheses, discriminating checks, and a causal explanation.
When should I use Hai Debug?
Hai Debug fits situations like: 排障、根因分析、偶发失败、环境差异、重复执行; A bug whose cause is unclear.
How do I install Hai Debug in Claude Code?
Run `npx skills add hylarucoder/hai-stack --skill hai-debug -a claude-code`. Or copy the skill folder (skills/hai-debug in hylarucoder/hai-stack) into .claude/skills/hai-debug in your project. Claude Code loads it when a task matches its description.
How do I install Hai Debug in Codex?
Run `npx skills add hylarucoder/hai-stack --skill hai-debug -a codex`. Or copy the skill folder (skills/hai-debug in hylarucoder/hai-stack) into .agents/skills/hai-debug in your project. Codex loads it when a task matches its description.
Can I use Hai 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 hylarucoder/hai-stack --skill hai-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/hai-debug, .gemini/skills/hai-debug, .github/skills/hai-debug and .opencode/skills/hai-debug in your project.
What does Hai Debug need to run?
SKILL.md names no scripts, command-line tools or credentials: Hai Debug is instructions for the agent only.
Does Hai 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 Hai 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 Hai Debug use?
Hai Debug 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 Hai Debug use?
About 1k tokens (SKILL.md is roughly 4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 184 tokens, read only when the agent opens those files.
What are the alternatives to Hai Debug?
Skills that share tags, products or a category with Hai Debug: TDD (fossasia/eventyay-interpretation, 1.6k stars), TDD Workflow (hellangleZ/burn-in-cceverywhere-ralph, 112 stars), TDD (sanity-io/sanity, 6.4k stars) and Test Driven Development (farm-fe/farm, 5.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Hai Debug?
hylarucoder (a GitHub user) maintains it in hylarucoder/hai-stack, which has 380 GitHub stars. The repository holds 18 skills in this directory. The repository was last updated on October 5, 2026.
Source: hylarucoder/hai-stack on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.