Add official seed tools

- official/summarize: Text summarization with style options
- official/translate: Language translation tool
- official/code-review: Code review and analysis
- official/explain: Explain code or concepts

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

tools/official/code-review/README.md

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+# code-review
+
+Review code for issues, risks, and improvements.
+
+## Usage
+
+```bash
+code-review --language python --focus bugs,security --severity medium < app.py
+```
+
+## Arguments
+
+- `--language`: Programming language or `auto`.
+- `--focus`: Comma-separated focus areas (e.g., `bugs,security,performance`).
+- `--severity`: Minimum severity level (`low`, `medium`, `high`).
+
+## Examples
+
+```bash
+cat main.go | code-review --language go --focus performance --severity high
+```

tools/official/code-review/config.yaml

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+name: code-review
+version: "1.0.0"
+description: "Review code for issues and improvements"
+category: code-analysis
+tags:
+  - code
+  - review
+  - quality
+arguments:
+  - variable: language
+    flag: "--language"
+    default: "auto"
+    description: "Programming language (e.g., python, javascript, go)"
+  - variable: focus
+    flag: "--focus"
+    default: "bugs,security,performance"
+    description: "Comma-separated focus areas"
+  - variable: severity
+    flag: "--severity"
+    default: "medium"
+    description: "Minimum severity: low, medium, high"
+steps:
+  - type: prompt
+    provider: "claude"
+    prompt: |
+      You are a senior code reviewer.
+      Language: {language}
+      Focus areas: {focus}
+      Minimum severity: {severity}
+
+      Review the following code. Identify issues, risks, and improvements.
+      Provide a concise, prioritized list with suggestions.
+
+      Code:
+      {input}
+    output_var: review
+output: "{review}"

tools/official/explain/README.md

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+# explain
+
+Explain code or concepts clearly with adjustable audience and format.
+
+## Usage
+
+```bash
+explain --audience beginner --format step-by-step < snippet.txt
+```
+
+## Arguments
+
+- `--audience`: Audience level (`beginner`, `general`, `expert`).
+- `--format`: Output format (`paragraph`, `bullet`, `step-by-step`).
+
+## Examples
+
+```bash
+echo "Explain recursion" | explain --audience general --format bullet
+```

tools/official/explain/config.yaml

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+name: explain
+version: "1.0.0"
+description: "Explain code or concepts clearly"
+category: education
+tags:
+  - explanation
+  - learning
+  - code
+arguments:
+  - variable: audience
+    flag: "--audience"
+    default: "general"
+    description: "Audience level: beginner, general, expert"
+  - variable: format
+    flag: "--format"
+    default: "paragraph"
+    description: "Output format: paragraph, bullet, or step-by-step"
+steps:
+  - type: prompt
+    provider: "claude"
+    prompt: |
+      You are a clear and concise explainer.
+      Audience: {audience}
+      Format: {format}
+
+      Explain the following content:
+      {input}
+    output_var: explanation
+output: "{explanation}"

tools/official/summarize/README.md

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+# summarize
+
+Summarize text using AI. Designed for quick overviews, briefs, or executive summaries.
+
+## Usage
+
+```bash
+summarize --max-length 200 --style neutral < input.txt
+```
+
+## Arguments
+
+- `--max-length`: Maximum length of the summary in words. Default: `200`.
+- `--style`: Summary style. Options: `neutral`, `bullet`, `executive`.
+
+## Examples
+
+```bash
+cat report.txt | summarize --max-length 120 --style executive
+```

tools/official/summarize/config.yaml

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+name: summarize
+version: "1.0.0"
+description: "Summarize text using AI"
+category: text-processing
+tags:
+  - summarization
+  - text
+  - ai
+arguments:
+  - variable: max_length
+    flag: "--max-length"
+    default: "200"
+    description: "Maximum length of the summary in words"
+  - variable: style
+    flag: "--style"
+    default: "neutral"
+    description: "Summary style: neutral, bullet, or executive"
+steps:
+  - type: prompt
+    provider: "claude"
+    prompt: |
+      You are a helpful assistant that summarizes text.
+      Style: {style}
+      Max length: {max_length} words.
+
+      Summarize the following text:
+      {input}
+    output_var: summary
+output: "{summary}"

tools/official/translate/README.md

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+# translate
+
+Translate text between languages using AI.
+
+## Usage
+
+```bash
+translate --from auto --to en --tone neutral < input.txt
+```
+
+## Arguments
+
+- `--from`: Source language (e.g., `en`, `es`, `fr`) or `auto`.
+- `--to`: Target language (e.g., `en`, `es`, `fr`).
+- `--tone`: Translation tone: `neutral`, `formal`, `casual`.
+
+## Examples
+
+```bash
+echo "Hola mundo" | translate --from es --to en --tone formal
+```

tools/official/translate/config.yaml

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+name: translate
+version: "1.0.0"
+description: "Translate text between languages using AI"
+category: text-processing
+tags:
+  - translation
+  - localization
+  - text
+arguments:
+  - variable: from_language
+    flag: "--from"
+    default: "auto"
+    description: "Source language (e.g., en, es, fr) or auto"
+  - variable: to_language
+    flag: "--to"
+    default: "en"
+    description: "Target language (e.g., en, es, fr)"
+  - variable: tone
+    flag: "--tone"
+    default: "neutral"
+    description: "Tone: neutral, formal, or casual"
+steps:
+  - type: prompt
+    provider: "claude"
+    prompt: |
+      You are a translation assistant.
+      Translate from: {from_language}
+      Translate to: {to_language}
+      Tone: {tone}
+
+      Translate the following text:
+      {input}
+    output_var: translation
+output: "{translation}"