{"slug":"microsoft-code-explainer","name":"code-explainer","description":"Explains code snippets in plain English, breaking down what the code does step by step. Perfect for learning, code reviews, or documentation.","long_description":"---\nname: code-explainer\ndescription: |\n  **UTILITY SKILL** - Explain code snippets, functions, and algorithms in plain language.\n  USE FOR: explain code, what does this code do, break down this function,\n  help me understand this, walk through this algorithm, clarify this logic,\n  explain this snippet, describe what happens here.\n  DO NOT USE FOR: writing new code (use code generation), fixing bugs (use debugging),\n  refactoring (use refactoring skills), code review with action items.\n  INVOKES: file reading tools to access code, language detection for tailored explanations.\n  FOR SINGLE OPERATIONS: If the user just needs to see file contents, use file reading tools directly.\n---\n\n# Code Explainer\n\nA skill that explains code snippets in clear, educational language. Helps developers understand unfamiliar code, algorithms, and programming patterns.\n\n## Skill Activation Triggers\n\n**Use this skill immediately when the user asks to:**\n- \"Explain this code\"\n- \"What does this function do?\"\n- \"Break down this algorithm\"\n- \"Help me understand this snippet\"\n- \"Walk me through this code\"\n- \"What's happening in this file?\"\n\n**Key Indicators:**\n- User shares a code snippet and asks for explanation\n- User is confused about existing code\n- User wants to learn how something works\n- User asks \"what does X do?\" about code\n\n**Do NOT use when:**\n- User wants to write new code\n- User wants to fix a bug\n- User wants code review with suggestions\n- User wants refactoring recommendations\n\n## Quick Reference\n\n| Property | Value |\n|----------|-------|\n| Input | Code snippet + optional language hint |\n| Output | Plain language explanation |\n| Best for | Learning, onboarding, code comprehension |\n\n## Explanation Guidelines\n\n### Structure\n\nA good code explanation should include:\n\n1. **Overview** - One sentence summary of what the code does\n2. **Step-by-step breakdown** - Walk through the logic\n3. **Key concepts** - Explain any patterns or techniques used\n4. **Example** - Show sample input/output if applicable\n\n### Tone\n\n- Educational and approachable\n- Avoid jargon unless explaining it\n- Use analogies when helpful\n- Assume the reader is smart but unfamiliar with this specific code\n\n### Language-Specific Tips\n\n| Language | Focus On |\n|----------|----------|\n| Python | List comprehensions, decorators, generators |\n| JavaScript | Async/await, closures, callbacks |\n| SQL | JOINs, subqueries, aggregations |\n| Java | OOP patterns, generics, streams |\n\n## Examples\n\n### Example 1: Python Recursion\n\n**User prompt:**\n```\nExplain this code:\n```python\ndef factorial(n):\n    if n <= 1:\n        return 1\n    return n * factorial(n - 1)\n```\n\n**Good response:**\n> This is a **recursive function** that calculates the factorial of a number.\n>\n> **Overview:** It multiplies a number by all positive integers less than it (e.g., 5! = 5 × 4 × 3 × 2 × 1 = 120).\n>\n> **Step by step:**\n> 1. **Base case** (`if n <= 1`): If n is 0 or 1, return 1 (since 0! and 1! both equal 1)\n> 2. **Recursive case**: Otherwise, multiply n by factorial(n-1)\n>\n> **Example:** `factorial(4)` → 4 × factorial(3) → 4 × 3 × factorial(2) → 4 × 3 × 2 × factorial(1) → 4 × 3 × 2 × 1 = 24\n\n### Example 2: JavaScript Async/Await\n\n**User prompt:**\n```\nWhat does this code do?\n```javascript\nasync function fetchUserData(userId) {\n  try {\n    const response = await fetch(`/api/users/${userId}`);\n    if (!response.ok) throw new Error('User not found');\n    return await response.json();\n  } catch (error) {\n    console.error('Failed:', error);\n    return null;\n  }\n}\n```\n\n**Good response:**\n> This is an **async function** that fetches user data from an API.\n>\n> **Overview:** It makes an HTTP request to get a user's data, handles errors gracefully, and returns the result as JSON.\n>\n> **Step by step:**\n> 1. `async function` - Declares this function will use await for promises\n> 2. `await fetch(...)` - Makes HTTP GET request, waits for response\n> 3. `if (!response.ok)` - Checks if request succeeded (status 200-299)\n> 4. `await response.json()` - Parses response body as JSON\n> 5. `catch` block - If anything fails, logs error and returns null\n>\n> **Key pattern:** This is the standard async/await pattern for API calls with error handling.\n\n## Error Cases\n\nIf the user provides:\n- **No code**: Ask them to share the code they want explained\n- **Incomplete code**: Explain what you can see and note what's missing\n- **Non-code text**: Clarify you need actual code to explain\n\n## Integration Notes\n\nThis skill works well with:\n- File reading tools (to access code from files)\n- Language detection (to tailor explanations)\n- Search tools (to find related documentation)\n","tagline":"Explains code snippets in plain English, breaking down what the code does step by step. Perfect for learning, code reviews, or documentation.","category":"coding-agents","tags":["agent-skill"],"author":"microsoft","verified":false,"attribution":{"status":"registry_indexed","statusLabel":"Registry indexed","shortLabel":"REGISTRY INDEXED","sourceLabel":"github fast track","sourceDetail":"microsoft/waza","creatorName":"microsoft","creatorUrl":"https://github.com/microsoft","sourceUrl":"https://github.com/microsoft/waza/tree/main/examples/code-explainer","indexedBy":"OpenAgentSkill community index","claimUrl":"https://www.openagentskill.com/skills/microsoft-code-explainer#claim-this-skill","claimCta":"Claim this skill","trustNote":"This listing was indexed from public sources and is not marked official until a maintainer claim is approved.","publicNote":"Attribution links to the public repository or creator profile. 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Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: Explains code snippets in plain English, breaking down what the code does step by step. Perfect for learning, code reviews, or documentation. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"microsoft-code-explainer\",\"task\":\"Install code-explainer\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"code-explainer\" as a Claude Code skill from https://github.com/microsoft/waza/tree/main/examples/code-explainer. 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Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: Explains code snippets in plain English, breaking down what the code does step by step. Perfect for learning, code reviews, or documentation. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"microsoft-code-explainer\",\"task\":\"Install code-explainer\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. 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Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Explains code snippets in plain English, breaking down what the code does step by step. Perfect for learning, code reviews, or documentation. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"microsoft-code-explainer\",\"task\":\"Install code-explainer\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"code-explainer\" from https://github.com/microsoft/waza/tree/main/examples/code-explainer into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: Explains code snippets in plain English, breaking down what the code does step by step. Perfect for learning, code reviews, or documentation. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"microsoft-code-explainer\",\"task\":\"Install code-explainer\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."}],"handoff_url":"https://www.openagentskill.com/api/skills/microsoft-code-explainer/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/microsoft-code-explainer"},"trust":{"score":82,"label":"Strong shortlist","version":"trust-score-v4","install_policy":"human_review_before_install","evidence":{"stars":"1.3K GitHub stars","repoActivity":"1.3K stars, 81 forks","lastPushed":"3d since push","license":"MIT","repository":"https://github.com/microsoft/waza/tree/main/examples/code-explainer","install":"npx skills add microsoft/waza --skill code-explainer","installSafety":"standard package or runtime install path","permissionSurface":"filesystem or document access, network or browser access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet"},"outcome_evidence":{"total":0,"successes":0,"failures":0,"not_relevant":0,"success_rate":null,"recent_success_rate":null,"recent_failure_rate":null,"install_attempts":0,"install_success_rate":null,"risk_blocked":0,"setup_required":0,"avg_output_quality":null,"production_outcomes":0,"last_outcome_at":null,"label":"No agent outcome data yet"},"auto_install":{"allowed":false,"sandbox_required":true,"reason":"Human review or sandbox validation is required before automatic installation."},"best_for":["coding-agents","agent-skill"],"known_risks":["Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.","metrics":{"totalOutcomes":0,"successfulOutcomes":0,"failedOutcomes":0,"installAttempts":0,"installSuccessRate":null,"successRate":null,"recentSuccessRate":null,"recentFailureRate":null,"riskBlocked":0,"setupRequired":0,"notRelevant":0,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"uniqueAgents":0,"lastOutcomeAt":null},"signals":[],"penalties":["No real agent outcome evidence yet"]},"audit":{"score":85,"risk_level":"needs_review","risk_label":"Needs review","warnings":["Permission surface may require sandboxing","Quality score needs review","Permission surface needs review: filesystem or document access, network or browser access","Permission surface: filesystem or document access, network or browser access"]},"safety_gate":{"tier":"reviewed","label":"Reviewed with permission 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agents","url":"https://www.openagentskill.com/use-cases/coding-agents"},{"slug":"content-automation","title":"Content automation","url":"https://www.openagentskill.com/use-cases/content-automation"},{"slug":"local-desktop","title":"Local desktop","url":"https://www.openagentskill.com/use-cases/local-desktop"},{"slug":"rag-knowledge","title":"RAG and knowledge","url":"https://www.openagentskill.com/use-cases/rag-knowledge"}],"stacks":[{"slug":"coding-review-agent","title":"Coding review agent","url":"https://www.openagentskill.com/collections/coding-review-agent"},{"slug":"content-growth-agent","title":"Content growth agent","url":"https://www.openagentskill.com/collections/content-growth-agent"},{"slug":"rag-knowledge-base","title":"RAG knowledge base","url":"https://www.openagentskill.com/collections/rag-knowledge-base"}],"install":"npx skills add microsoft/waza --skill code-explainer","install_targets":[{"id":"openagentskill-cli","label":"CLI","title":"OpenAgentSkill CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.3.0/openagentskill-0.3.0.tgz add microsoft-code-explainer","description":"Resolve policy, run the source installer safely, and report a verified install receipt.","copyLabel":"Copy command"},{"id":"codex","label":"Codex","title":"Codex install prompt","kind":"agent-prompt","value":"Install the \"code-explainer\" agent skill from https://github.com/microsoft/waza/tree/main/examples/code-explainer. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: Explains code snippets in plain English, breaking down what the code does step by step. Perfect for learning, code reviews, or documentation. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"microsoft-code-explainer\",\"task\":\"Install code-explainer\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Give Codex a repo-aware install prompt when the skill is not available through a local CLI.","copyLabel":"Copy prompt"},{"id":"claude-code","label":"Claude Code","title":"Claude Code skill prompt","kind":"agent-prompt","value":"Add \"code-explainer\" as a Claude Code skill from https://github.com/microsoft/waza/tree/main/examples/code-explainer. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Explains code snippets in plain English, breaking down what the code does step by step. Perfect for learning, code reviews, or documentation. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"microsoft-code-explainer\",\"task\":\"Install code-explainer\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Use this prompt to ask Claude Code to add the skill and explain the local activation steps.","copyLabel":"Copy prompt"},{"id":"cursor","label":"Cursor","title":"Cursor rule prompt","kind":"agent-prompt","value":"Turn \"code-explainer\" from https://github.com/microsoft/waza/tree/main/examples/code-explainer into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: Explains code snippets in plain English, breaking down what the code does step by step. Perfect for learning, code reviews, or documentation. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"microsoft-code-explainer\",\"task\":\"Install code-explainer\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Use this when installing as Cursor project rules or reusable agent instructions.","copyLabel":"Copy prompt"}],"repository":"https://github.com/microsoft/waza/tree/main/examples/code-explainer","github_repo":"microsoft/waza","version":"1.0.0","license":"MIT","urls":{"web":"https://www.openagentskill.com/skills/microsoft-code-explainer","repository":"https://github.com/microsoft/waza/tree/main/examples/code-explainer","api":"/api/agent/skills/microsoft-code-explainer","install_api":"/api/skills/microsoft-code-explainer/install"},"meta":{"created_at":"2026-09-02T19:25:33.60945+00:00","updated_at":"2026-09-03T19:12:01.611941+00:00","agent_friendly":true}}