Codexqa Code Wiki
openqa-cn/codexqa
Builds a local architecture wiki for a repository from the CodexQA symbol graph (no model needed): modules, who calls whom and how often, reading paths, and one self-contained HTML page.
A skill your agent uses whenever the user wants visual learning for data structures, algorithms, trees, graphs, sorting, searching, hashing, recursion, complexity analysis, 408 data structure…
Install Data Structure Visualization
$ npx skills add mingchen666/Reviva --skill data-structure-visualization -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install mingchen666/Reviva data-structure-visualization --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/mingchen666/Reviva.git skills-src && mkdir -p .claude/skills && cp -r skills-src/electron/builtin-assets/skills/data-structure-visualization .claude/skills/data-structure-visualization && 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 "data-structure-visualization" agent skill from https://github.com/mingchen666/Reviva/tree/main/electron/builtin-assets/skills/data-structure-visualization into .claude/skills/data-structure-visualization/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "data-structure-visualization", 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/mingchen666/Reviva/tree/main/electron/builtin-assets/skills/data-structure-visualizationType 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 mingchen666/Reviva --skill data-structure-visualization -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install mingchen666/Reviva data-structure-visualization --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mingchen666/Reviva.git skills-src && mkdir -p .agents/skills && cp -r skills-src/electron/builtin-assets/skills/data-structure-visualization .agents/skills/data-structure-visualization && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "data-structure-visualization" agent skill from https://github.com/mingchen666/Reviva/tree/main/electron/builtin-assets/skills/data-structure-visualization into .agents/skills/data-structure-visualization/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "data-structure-visualization", 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 mingchen666/Reviva --skill data-structure-visualization -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install mingchen666/Reviva data-structure-visualization --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mingchen666/Reviva.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/electron/builtin-assets/skills/data-structure-visualization .cursor/skills/data-structure-visualization && 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 "data-structure-visualization" agent skill from https://github.com/mingchen666/Reviva/tree/main/electron/builtin-assets/skills/data-structure-visualization into .cursor/skills/data-structure-visualization/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "data-structure-visualization", 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/mingchen666/Reviva.git --path electron/builtin-assets/skills/data-structure-visualization--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 mingchen666/Reviva --skill data-structure-visualization -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install mingchen666/Reviva data-structure-visualization --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mingchen666/Reviva.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/electron/builtin-assets/skills/data-structure-visualization .gemini/skills/data-structure-visualization && 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 "data-structure-visualization" agent skill from https://github.com/mingchen666/Reviva/tree/main/electron/builtin-assets/skills/data-structure-visualization into .gemini/skills/data-structure-visualization/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "data-structure-visualization", 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 mingchen666/Reviva data-structure-visualizationInstalls 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 mingchen666/Reviva --skill data-structure-visualization -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/mingchen666/Reviva.git skills-src && mkdir -p .github/skills && cp -r skills-src/electron/builtin-assets/skills/data-structure-visualization .github/skills/data-structure-visualization && 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 "data-structure-visualization" agent skill from https://github.com/mingchen666/Reviva/tree/main/electron/builtin-assets/skills/data-structure-visualization into .github/skills/data-structure-visualization/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "data-structure-visualization", 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 mingchen666/Reviva --skill data-structure-visualization -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install mingchen666/Reviva data-structure-visualization --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mingchen666/Reviva.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/electron/builtin-assets/skills/data-structure-visualization .opencode/skills/data-structure-visualization && 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 "data-structure-visualization" agent skill from https://github.com/mingchen666/Reviva/tree/main/electron/builtin-assets/skills/data-structure-visualization into .opencode/skills/data-structure-visualization/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "data-structure-visualization", 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
data-structure-visualization- GitHub stars
- 236
- Token cost
- ~1.1k tokens
- SKILL.md length
- 506 words
- Files
- 4 (incl. assets)
- Skills in repo
- 54
- Repo updated
- First seen
- Licence
- None found
At a glance
A skill your agent uses whenever the user wants visual learning for data structures, algorithms, trees, graphs, sorting, searching, hashing, recursion, complexity analysis, 408 data structure…
- The user wants visual learning for data structures
- SKILL.md covers Use For, Output Modes, Bundled Template and Research-Informed Design…, plus 4 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Complexity analysis
What it does
Data Structure Visualization is an agent skill from mingchen666/Reviva. Use this skill whenever the user wants visual learning for data structures, algorithms, trees, graphs, sorting, searching, hashing, recursion, complexity analysis, 408 data structure review, algorithm hand simulation, or an interactive HTML explanation for a data-structure problem.
Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files, including assets (for example `config.json`).
It sits in Knowledge Management, covering HTML artifacts. The repository describes itself as: Local-first AI learning workspace — ask, note, review and create around your own materials. Wiki KB, Agents, Skills, creation tools.Private NotebookLM Alternative.AI….
When your agent uses it
- The user wants visual learning for data structures
- Complexity analysis
- 408 data structure review
- Algorithm hand simulation
Example prompts
- “/data-structure-visualization”
Requirements
- Pre-approved tools (allowed-tools): file_read, file_write
What it can do on your machine
Read from SKILL.md and the folder at commit 24bde40. 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:
file_readfile_write
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
Data Structure Visualization loads about 1.1k tokens when it runs. Until then it costs about 78 tokens; SKILL.md has 506 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 506 words (~1,126 tokens).
“Create visual study artifacts for data structures and algorithms. The goal is to show the evolving state of the structure and the hand-simulation path a student would use in an exam.”
- name
- data-structure-visualization
- allowed-tools
- file_read, file_write
Files
SKILL.md and 3 other files (assets) in electron/builtin-assets/skills/data-structure-visualization of mingchen666/Reviva.
- SKILL.md
- assets/templates/algorithm-stepper.html
- assets/templates/tree-graph-stepper.html
- config.json
Open the folder on GitHubat commit 24bde40
Compare with similar skills
Data Structure Visualization 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 |
|---|---|---|---|---|---|---|
| Data Structure Visualization this skillmingchen666/Reviva | 236 | — | ~1.1k | Automated safety check: Pass | None | |
| Codexqa Code Wikiopenqa-cn/codexqa | 152 | — | ~1.3k | Automated safety check: Pass | Apache-2.0 | |
| Analyzing Backend BundleTriliumNext/Trilium | 38k | — | ~2.6k | Automated safety check: Pass | AGPL-3.0 | |
| Remembercommercetools/ui-kit | 154 | — | ~2k | Automated safety check: Notes | MIT | |
| Gitnexus ExplorerTommy-yw/RunbookHermes | 546 | 3 repos | ~1.8k | Automated safety check: Pass | MIT | |
| Axhub Annotation Standalonelintendo/Axhub-Skills | 127 | — | ~831 | Automated safety check: Pass | MIT |
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Questions about Data Structure Visualization
What does Data Structure Visualization do?
A skill your agent uses whenever the user wants visual learning for data structures, algorithms, trees, graphs, sorting, searching, hashing, recursion, complexity analysis, 408 data structure…. Data Structure Visualization is an agent skill from mingchen666/Reviva. Use this skill whenever the user wants visual learning for data structures, algorithms, trees, graphs, sorting, searching, hashing, recursion, complexity analysis, 408 data structure review, algorithm hand simulation, or an interactive HTML explanation for a data-structure problem.
When should I use Data Structure Visualization?
Data Structure Visualization fits situations like: the user wants visual learning for data structures; complexity analysis; 408 data structure review; algorithm hand simulation.
How do I install Data Structure Visualization in Claude Code?
Run `npx skills add mingchen666/Reviva --skill data-structure-visualization -a claude-code`. Or copy the skill folder (electron/builtin-assets/skills/data-structure-visualization in mingchen666/Reviva) into .claude/skills/data-structure-visualization in your project. Claude Code loads it when a task matches its description.
How do I install Data Structure Visualization in Codex?
Run `npx skills add mingchen666/Reviva --skill data-structure-visualization -a codex`. Or copy the skill folder (electron/builtin-assets/skills/data-structure-visualization in mingchen666/Reviva) into .agents/skills/data-structure-visualization in your project. Codex loads it when a task matches its description.
Can I use Data Structure Visualization 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 mingchen666/Reviva --skill data-structure-visualization -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/data-structure-visualization, .gemini/skills/data-structure-visualization, .github/skills/data-structure-visualization and .opencode/skills/data-structure-visualization in your project.
What does Data Structure Visualization need to run?
SKILL.md names no scripts, command-line tools or credentials: Data Structure Visualization is instructions for the agent only. Its frontmatter pre-approves these tools: file_read, file_write.
Does Data Structure Visualization 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 Data Structure Visualization 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 Data Structure Visualization use?
No licence was found for Data Structure Visualization or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Data Structure Visualization use?
About 1.1k tokens (SKILL.md is roughly 4.5k 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 Data Structure Visualization?
Skills that share tags, products or a category with Data Structure Visualization: Codexqa Code Wiki (openqa-cn/codexqa, 152 stars), Analyzing Backend Bundle (TriliumNext/Trilium, 38k stars), Remember (commercetools/ui-kit, 154 stars) and Gitnexus Explorer (Tommy-yw/RunbookHermes, 546 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Data Structure Visualization?
mingchen666 (a GitHub user) maintains it in mingchen666/Reviva, which has 236 GitHub stars. The repository holds 54 skills in this directory. The repository was last updated on September 21, 2026.
Source: mingchen666/Reviva on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.