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在 OpenClaw 中安装
/install nccuoj
功能描述
Solve competitive programming problems on NCCUOJ (https://nccuoj.ebg.tw). Use when: solving OJ problems, reading problem statements, writing solutions in C/C...
安全使用建议
This skill appears to be what it claims — it fetches problems and can submit/check solutions for NCCUOJ. Before installing or running it, consider:
- Password exposure: the examples use CLI arguments for username/password, which can be visible to other users/processes on the same machine; prefer typing credentials interactively or using a guarded mechanism if available.
- Cookie storage: session cookies are saved to .nccuoj/cookies.txt in the workspace; remove this file when you no longer want the session kept.
- Base URL override: an environment variable (NCCUOJ_BASE_URL) can redirect API calls — ensure it is not set to an untrusted host in your environment.
- Run in a trusted environment: because the scripts perform network operations and write files, run them in your expected workspace and review the scripts if you have concerns.
If you need stronger protections, consider creating a throwaway account for submissions and manually reviewing or sandboxing the scripts before use.
功能分析
Type: OpenClaw Skill
Name: nccuoj
Version: 1.0.2
The skill bundle is a legitimate tool for interacting with the NCCUOJ competitive programming platform. It provides scripts (get_problem.py, submit.py, check_result.py) to fetch problems, submit solutions, and track results using the platform's API. While the scripts require user credentials for authenticated actions, they are passed via command-line arguments and used solely for the intended NCCUOJ endpoints, with no evidence of data exfiltration, malicious execution, or obfuscation.
能力评估
Purpose & Capability
Name/description match the included Python scripts (get_problem, submit, check_result, session). All network calls target the NCCUOJ API and the stored files (.nccuoj/* and solution files) align with the described functionality.
Instruction Scope
SKILL.md instructs the agent to request usernames/passwords when needed and to run the included scripts. The scripts read/write only the .nccuoj workspace directory and call the NCCUOJ API. Note: the workflow instructs passing passwords as CLI arguments (exposed to the process list) and the scripts persist cookies to .nccuoj/cookies.txt; these are privacy/security considerations but are expected for a CLI-based OJ helper.
Install Mechanism
There is no install step or remote download. This is an instruction+script bundle using only Python stdlib. No external package installs or unknown URLs are used.
Credentials
The skill declares no required env vars. The code supports an override NCCUOJ_BASE_URL environment variable (useful for testing); this is reasonable but means a user or environment could redirect requests to a different server if set. Credentials are supplied at runtime (CLI args) rather than via a declared primary credential — this matches the described behavior but has the usual CLI-password exposure risk. The scripts persist session cookies locally (.nccuoj/cookies.txt), which is expected but worth noting.
Persistence & Privilege
always:false and the skill does not request system-wide changes or modify other skills. It creates/uses only its own .nccuoj directory for cookies and solution files (normal and scoped).
如何使用
- 确保已安装 OpenClaw（本地或 Docker 部署）
- 在对话框中输入安装命令：
/install nccuoj - 安装完成后，直接呼叫该 Skill 的名称或使用
/nccuoj触发 - 根据 Skill 的参数说明提供必要输入，即可获得结构化输出
版本历史
v1.0.2
- Adds explicit workspace directory structure under `.nccuoj/`, organizing solutions and problem files for both public and contest problems.
- Updates all example commands to use an absolute `$SCRIPTS` path and clarifies that scripts should resolve their directory relative to the SKILL.md file.
- Instructs to always place solution code in the appropriate `.nccuoj/solution/public/` or `.nccuoj/solution/contest/` directory and references helper utilities for this.
- No changes to command syntax, API details, or solution templates.
v1.0.1
- Updated example script paths from `.github/skills/nccuoj/scripts/` to `scripts/` throughout all usage instructions
- No behavior or functional changes; only documentation and command path fixes for clarity and consistency
v1.0.0
- Initial release of the nccuoj skill for solving competitive programming problems on NCCUOJ.
- Supports fetching and reading problem statements (public and contest), writing and submitting solutions in C/C++/Python/Java/Go/JavaScript.
- Includes scripts for problem retrieval, code submission, and checking submission results; all scripts manage CSRF tokens and sessions automatically.
- Guides users through solving, testing, and debugging problems, and clarifies required credentials for private or contest problems.
- Provides language templates and details on usage for both public and contest problem-solving modes.
元数据
常见问题
NCCU OJ 是什么？
Solve competitive programming problems on NCCUOJ (https://nccuoj.ebg.tw). Use when: solving OJ problems, reading problem statements, writing solutions in C/C... 它是一个面向 Claude Code / OpenClaw 的 AI Agent Skill 插件，目前累计下载 269 次。
如何安装 NCCU OJ？
在 OpenClaw 或 Claude Code 对话框中运行命令「/install nccuoj」即可一键安装，无需额外配置。
NCCU OJ 是免费的吗？
是的，NCCU OJ 完全免费，采用 MIT-0 许可证，可自由下载、安装和使用。
NCCU OJ 支持哪些平台？
NCCU OJ 跨平台运行，可在任意部署了 OpenClaw / Claude Code 的环境中使用（cross-platform）。
谁开发了 NCCU OJ？
由 andyjjrt（@andyjjrt）开发并维护，当前版本 v1.0.2。
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