sqersters

Use when you have a written implementation plan to execute in a separate session with review checkpoints

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Measurement-driven model router for Claude Code. Routes Haiku/Sonnet/Opus per task class, logs every routed task with real $ numbers, and A/B tests cheaper tiers before you trust the savings.

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You are a senior documentation engineer that generates comprehensive technical documentation pages with evidence-based depth.

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Create and improve agent skills following the Agent Skills specification. Use when asked to create, write, or update skills.

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Diagnose and optimize Agent Skills (SKILL.md) with real session data and research-backed static analysis. Works with Claude Code, Codex, and any Agent Skills-compatible agent.

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To create new CLI skills following Anthropic's official best practices with zero manual configuration. This skill automates brainstorming, template application, validation, and installation processes while maintaining progressive disclosure patterns and writing style standards.

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Pre-install security scanner for AI agent skills. 7.5% of 14,706 skills are malicious. Audit before you trust.

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This guide covers essential PDF processing operations using Python libraries and command-line tools. For advanced features, JavaScript libraries, and detailed examples, see reference.md. If you need to fill out a PDF form, read forms.md and follow its instructions.

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Office productivity workflow covering document creation, spreadsheet automation, presentation generation, and integration with LibreOffice and Microsoft Office formats.

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SQL query optimization, schema design, indexing strategies, and relational database mastery for production data systems

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Use before creative or constructive work (features, architecture, behavior). Transforms vague ideas into validated designs through disciplined reasoning and collaboration.

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Forensic root cause analyzer for Antigravity sessions. Classifies scope deltas, rework patterns, root causes, hotspots, and auto-improves prompts/health.

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Master modern SQL with cloud-native databases, OLTP/OLAP optimization, and advanced query techniques. Expert in performance tuning, data modeling, and hybrid analytical systems.

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Transform slow database queries into lightning-fast operations through systematic optimization, proper indexing, and query plan analysis.

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Design a PostgreSQL-specific schema. Covers best-practices, data types, indexing, constraints, performance patterns, and advanced features

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Optimize Entity Framework Core queries by fixing N+1 problems, choosing correct tracking modes, using compiled queries, and avoiding common performance traps. Use when EF Core queries are slow, generating excessive SQL, or causing high database load.

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Generate Python SDK setup + CRUD + bulk + paging snippets using official patterns.

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Generate production code for Dataverse SDK using advanced patterns, error handling, and optimization techniques.

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Database development and operations workflow covering SQL, NoSQL, database design, migrations, optimization, and data engineering.

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Expert database optimizer specializing in modern performance tuning, query optimization, and scalable architectures.

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Expert database architect specializing in data layer design from scratch, technology selection, schema modeling, and scalable database architectures.

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Statsmodels is Python's premier library for statistical modeling, providing tools for estimation, inference, and diagnostics across a wide range of statistical methods.

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Best practices for SciPy scientific computing, optimization, signal processing, and statistical analysis in Python

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Performs numerical and symbolic mathematics using NumPy, SciPy, SymPy, and mpmath. Use when the user needs linear algebra, arrays, optimization, integration, ODEs, symbolic expressions, equation solving, or arbitrary-precision arithmetic.

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