rugged-gemini

Session bootstrap + workflows for Pathfinder semantic navigation tools. Covers: discovery protocol, tool chaining patterns (explore, impact, audit, debug), search optimization, LSP degraded mode, and error recovery.

Playwright browser automation via MCP. Covers E2E testing, UI review, web scraping, screenshot capture, and general browser interaction. MCP-first — CLI is fallback only.

Safe command execution: input sanitization, timeout handling, output capture, error propagation. For spawning processes, shell commands, system calls.

Git conventions: conventional commits, branch naming, PR hygiene, release tagging.

Structured incident workflow: severity classification, triage, diagnosis, mitigation, postmortem, and prevention. Template-driven with blameless review.

Constructs, validates, and traverses a Directed Acyclic Graph (DAG) from scope cards for safe level-based parallel dispatch. Determines execution order via topological sort. Detects cycles and invalid dependencies.

Decomposes broad tasks into MECE, parallelizable sub-tasks with explicit scope cards. Core skill for intra-domain parallel dispatch. Produces scope cards consumed by parallel-dispatch-dag, parallel-dispatch-ownership, and parallel-dispatch-merge skills.

Safe, sequential merge protocol for integrating N parallel worktree branches back into main. Defines merge ordering, quality gates between merges, conflict classification, and the updated worktree naming convention for multi-instance dispatches.

Enforces MECE file boundaries for parallel write-agents. Validates that no two writers share file access. Manages the contracts layer (shared reads) and integration sub-task patterns. The safety invariant that prevents merge chaos.

OpenAPI 3.1 specification writing, request/response examples, error documentation, versioning, and interactive API portal patterns.

Controlled failure injection: hypothesis design, blast radius control, safety mechanisms, game day planning, and resilience verification.

CLI tool design, argument parsing, interactive prompts, shell completions, cross-platform considerations, and distribution strategies.

Structured code review protocol: inspect against full rule set. Use for audit workflows, code reviews, or when user requests review. Produces findings document with severity tags.

Data pipeline architecture, ETL/ELT patterns, data quality, batch vs stream processing, orchestration, and data governance principles.

Database design: schemas, migrations, queries, indexes, transactions. Normalization, query optimization, migration safety.

Structured debugging: hypothesis generation, validation, root cause analysis. For complex bugs, flaky tests, intermittent failures.

Dependency management: version pinning, vulnerability scanning, dependency hygiene. go.mod, package.json, Cargo.toml, pubspec.yaml.

Resource-constrained development, real-time patterns, interrupt handling, memory management, RTOS patterns, and hardware abstraction layers.

Generates distinctive, production-grade frontend interfaces (React, Vue, HTML/CSS). Bold aesthetics, unique typography, motion. Use for websites, dashboards, posters, or styling tasks.

ML pipeline design, feature engineering, model training/serving, experiment tracking, model validation, and MLOps principles.

PCI DSS compliance, payment gateway integration, tokenization, webhook reliability, idempotency, fraud prevention, and subscription billing.

Profile-driven performance optimization: methodology, pattern catalog, safety invariants, when-to-stop heuristics. Language-specific in languages/*.md.

Safe refactoring pattern catalog: code smell taxonomy, transformation techniques, behavior preservation strategies, and metrics tracking.

SBOM generation, CVE scanning, supply chain attack detection, license compliance, dependency pinning, and artifact verification.

WCAG accessibility: semantic HTML, ARIA, keyboard nav, contrast, screen readers. For all user-facing interfaces.

Document architectural decisions using ADR format. Use during research when choosing approaches, introducing deps/patterns, or changing arch.

REST/HTTP API design: resource naming, status codes, error formats, versioning, pagination.

Kubernetes deployment and GitOps patterns: rolling/blue-green/canary strategies, ArgoCD/Flux manifests, K8s secrets management. Supplement to ci-cd-principles.

CI/CD pipeline patterns: stages, Dockerfile, GitHub Actions, artifact management, environment promotion, rollback. Layered by deployment complexity.

Concurrency/parallelism patterns: race prevention, deadlock avoidance, message passing, async/channels/mutexes/worker pools.

Config management patterns: env vars, config files, settings structs, secrets injection. Validation, layering, fail-fast, twelve-factor.

Serialization best practices: schema validation, encoding, versioning, backward compat, safe deserialization. JSON, YAML, Protobuf, MessagePack.

Feature flag patterns ONLY when PRD/arch requires. Flag evaluation, lifecycle, testing, infrastructure. Do NOT load speculatively.

Pre-flight checklists before coding, post-implementation self-review after. Catches arch violations, missing observability, security oversights.

Structured logging and observability patterns: log levels, structured fields, correlation IDs, language-specific logger setup.

Distinctive, production-grade mobile interfaces for Flutter/RN. Platform-native patterns, adaptive layouts, fluid motion. iOS/Android conventions.

Health checks, metrics instrumentation (RED/USE), error tracking, graceful degradation. Prometheus, probes, alert thresholds.

Performance principles: measure-first methodology, data structures, caching, batching, when to stop. For hands-on profiling, use perf-optimization skill.

Resource lifecycle patterns: files, DB connections, sockets, locks. RAII, defer/finally, pooling, graceful shutdown, leak prevention.

Maximum token-efficiency communication. Telegraphic English + minimal structured notation. 100% technical accuracy. Zero fluff. Zero waste.