PostgreSQL database patterns for query optimization, schema design, indexing, and security. Based on Supabase best practices.

Step through versioning, tagging, and verification

Edit PDFs with natural-language instructions using the nano-pdf CLI.

Reviews animation and motion code against a high craft bar derived from Emil Kowalski's design engineering philosophy. Default to flagging; approval is earned.

Detect Git remote URL for GitHub integration

Initialize a Git repository with an initial commit

Create a feature branch with sequential or timestamp numbering

Reviews animation and motion code against a high craft bar derived from Emil Kowalski's design engineering philosophy. Default to flagging; approval is earned.

Author/validate/export Google's DESIGN.md token spec files.

Spring Boot architecture patterns, REST API design, layered services, data access, caching, async processing, and logging. Use for Java Spring Boot backend work.

CRITICAL: Use for error handling. Triggers: Result, Option, Error, ?, unwrap, expect, panic, anyhow, thiserror, when to panic vs return Result, custom error, error propagation, 错误处理, Result 用法, 什么时候用 panic

CRITICAL: Use for mutability issues. Triggers: E0596, E0499, E0502, cannot borrow as mutable, already borrowed as immutable, mut, &mut, interior mutability, Cell, RefCell, Mutex, RwLock, 可变性, 内部可变性, 借用冲突

Handoff skill and bug-capture entry point: loads plan-context.md and all design artifacts, performs a critical review against the real codebase, and ensures continuous writeback to the artifacts during and after implementation. Also the entry point when a bug is reported outside of an active implementation run -- captures the FIX artefact (BACKLOG row + FIX detail file + branch) without forcing an immediate fix. Use this skill when the user mentions "implement", "code", "realize plan-context", "build feature", "Bug gefunden", "es gibt einen Fehler", "Fix erfassen", or similar, and either a plan-context.md / FEATURE spec exists OR a bug surfaced. This skill does NOT take over the coding workflow -- the Default Claude Code agent remains responsible for the actual implementation. This skill ensures the context is critically reviewed, cleanly handed off, and artifacts stay up to date.

Use when defining TypeORM entities, writing migrations, or building repository/query-builder code in TypeScript. Covers entity and relation decorators, the Data Mapper pattern, migrations, the query builder, transactions, and multi-database configuration.

Extract a complete, source-traceable legacy evidence specification for one Oracle Forms module from Forms XML/FMT/FMB/FMX, PLL/PLD, DDL, message catalogues, menus/object libraries, and screenshots. Use for fresh or incremental reverse engineering when the output must preserve every evidenced screen region, tab, field, operation, rule, message, database dependency, provenance locator, uncertainty, and source-supported detail without inventing target requirements, target architecture, target tests, POC assumptions, or implementation decisions.

Add Telegram channel integration via Chat SDK.

Pull Intercom tickets and Slack support messages from the past 7 days, classify each signal, enrich with CRM data (ARR, plan, renewal), score by customer value and churn risk, and output a tiered priority report saved to Drive. Use when you need a fast, data-driven view of what support signals matter most.

Cheminformatics toolkit for fine-grained molecular control. SMILES/SDF parsing, descriptors (MW, LogP, TPSA), fingerprints, substructure search, 2D/3D generation, similarity, reactions. For standard workflows with simpler interface, use datamol (wrapper around RDKit). Use rdkit for advanced control, custom sanitization, specialized algorithms.

Query openFDA API for drugs, devices, adverse events, recalls, regulatory submissions (510k, PMA), substance identification (UNII), for FDA regulatory data analysis and safety research.

Access RCSB PDB for 3D protein/nucleic acid structures. Search by text/sequence/structure, download coordinates (PDB/mmCIF), retrieve metadata, for structural biology and drug discovery.