Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/echovic/blade-code/base64-parsernpx skills add echoVic/blade-code --skill base64-parsergit clone --depth 1 https://github.com/echoVic/blade-codeWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00033 | $0.00847 |
| Opus 5 | $0.00016 | $0.00424 |
| Sonnet 5 | $0.00007 | $0.00169 |
| Haiku 4.5 | $0.00003 | $0.00085 |
Grade A, and why
base64-parser scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 106 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Base64 编解码技能
功能
| 操作 | 说明 |
|---|---|
| decode | 解码 Base64 字符串为文本/JSON/二进制 |
| encode | 将文本/文件编码为 Base64 |
| detect | 自动检测 Base64 内容类型（JSON/文本/图片/PDF等） |
| batch | 批量解码多个 Base64 字符串 |
使用方法
重要：始终使用 -p 参数获得人类友好的输出格式！
1. 解码 Base64
# 解码并显示完整内容（推荐）
python3 .blade/skills/base64-parser/scripts/base64_tool.py -p decode "SGVsbG8gV29ybGQ="
# 解码并保存到文件
python3 .blade/skills/base64-parser/scripts/base64_tool.py -p decode "..." --output result.txt
# 解码二进制（如图片）并保存
python3 .blade/skills/base64-parser/scripts/base64_tool.py -p decode "iVBORw0KGgo..." --output image.png --binary
2. 编码为 Base64
# 编码文本
python3 .blade/skills/base64-parser/scripts/base64_tool.py -p encode "Hello World"
# 编码文件
python3 .blade/skills/base64-parser/scripts/base64_tool.py -p encode --file image.png
# URL 安全编码
python3 .blade/skills/base64-parser/scripts/base64_tool.py -p encode "Hello World" --url-safe
3. 检测类型
# 自动检测 Base64 内容类型并显示内容
python3 .blade/skills/base64-parser/scripts/base64_tool.py -p detect "eyJ0ZXN0IjogMX0="
4. 批量处理
# 从文件批量解码（每行一个 Base64）
python3 .blade/skills/base64-parser/scripts/base64_tool.py -p batch --file input.txt --output-dir ./decoded/
输出格式说明
-p(pretty): 人类友好格式，带 emoji 图标，显示完整解码内容- 不加
-p: JSON 格式，适合程序处理
示例输出（使用 -p）：
✅ Successfully decoded as JSON
📊 类型: json (application/json)
📏 大小: 35 bytes
📄 解码内容:
--------------------------------------------------
{
"name": "Blade",
"version": "2.0"
}
--------------------------------------------------
支持格式
| 格式 | 自动检测 | 说明 |
|---|---|---|
| JSON | ✅ | 自动解析并格式化输出 |
| 纯文本 | ✅ | UTF-8 文本 |
| PNG/JPEG/GIF | ✅ | 通过 magic bytes 检测 |
| ✅ | 通过 %PDF 头检测 | |
| 其他二进制 | ✅ | 显示十六进制预览 |
常见场景
- 解析 JWT Token：JWT 的 payload 是 Base64 编码的 JSON
- 查看 API 响应：某些 API 返回 Base64 编码的数据
- 处理配置文件：Kubernetes Secrets 等使用 Base64
- 图片 Data URI：
data:image/png;base64,...格式 - 调试加密数据：查看加密前的原始内容
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 106 lines · 33 tokens per session scan A 65ba29a5931f
base64-parser is a skill published in the GitHub repository echoVic/blade-code (177 stars, last pushed 2d ago), licensed MIT. It adds 33 tokens to every session and 847 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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