robsonkades/agent-skills

robsonkades/agent-skills · AGENTS.md

robsonkades/agent-skills · CLAUDE.md

robsonkades/agent-skills · DESIGN.md

robsonkades/agent-skills · skills/adapter-sidecar-pattern/SKILL.md · Choose and review Kubernetes telemetry adapters when a legacy or vendor process emits incompatible metrics, logs or…

robsonkades/agent-skills · skills/allocation-profiling/SKILL.md · Attribute Java heap allocation to code and validate reductions in bytes per operation. Use when allocation or GC…

robsonkades/agent-skills · skills/ambassador-pattern/SKILL.md · Choose or review a local outbound proxy when discovery or routing changes require client releases, a canary or shadow…

robsonkades/agent-skills · skills/api-gateway-and-bff/SKILL.md · Design or review an API gateway or backend for frontend when client journeys need different representations, too many…

robsonkades/agent-skills · skills/architecture-and-performance/SKILL.md · Attribute endpoint latency and throughput limits to architectural choices when query counts grow with result size…

robsonkades/agent-skills · skills/architecture-characteristics/SKILL.md · Derive and prioritize architectural quality drivers when requirements say only scalable or reliable, too many qualities…

robsonkades/agent-skills · skills/architecture-coupling-and-quanta/SKILL.md · Map release and runtime coupling when services ship together, event-driven components still require coordinated…

robsonkades/agent-skills · skills/architecture-decision-making/SKILL.md · Write, review, reconstruct or supersede architecture decision records when rationale is missing, a decision is…

robsonkades/agent-skills · skills/architecture-fitness-functions/SKILL.md · Define or review checks that preserve architectural qualities when a green pipeline misses incidents, inherited rules…

robsonkades/agent-skills · skills/architecture-refactoring-paths/SKILL.md · Sequence a chosen enterprise architecture change into compatible, testable checkpoints: domain and persistence…

robsonkades/agent-skills · skills/architecture-testing/SKILL.md · Write or review tests for architectural promises: dependency boundaries, transaction atomicity, persistence mappings…

robsonkades/agent-skills · skills/architecture-trade-off-analysis/SKILL.md · Compare architectural alternatives when quality goals conflict, a scorecard or case study is being used as a verdict…

robsonkades/agent-skills · skills/async-profiler-advanced/SKILL.md · Configure and validate async-profiler when recordings are empty, idle-heavy, truncated, permission-blocked…

robsonkades/agent-skills · skills/blocking-and-nonblocking-io/SKILL.md · Four things routinely conflated into one: a blocking API, a blocked OS thread, non-blocking I/O at the syscall, and an…

robsonkades/agent-skills · skills/bounded-context-design/SKILL.md · Design or review bounded contexts when the same business term has conflicting meanings, rules change under different…

robsonkades/agent-skills · skills/c2-sea-of-nodes/SKILL.md · How HotSpot actually executes and compiles: the runtime-generated template interpreter, C2's sea-of-nodes IR, a…

robsonkades/agent-skills · skills/cache-sharding-and-replication/SKILL.md · Topology for a cache that no longer fits one node: client-side sharded, proxy-fronted, clustered, and fully replicated…

robsonkades/agent-skills · skills/caching-strategies/SKILL.md · Deciding whether to cache, then doing it safely: saved origin work and latency, bounded size or weight, TTL and jitter…

robsonkades/agent-skills · skills/cancellation-and-interruption/SKILL.md · Designing cooperative cancellation in Java across interruption, Future/CompletableFuture, executor/scope shutdown…

robsonkades/agent-skills · skills/capacity-planning/SKILL.md · Evidence-based capacity decisions for Java services: defining demand and failure scenarios, measuring feasible capacity…

robsonkades/agent-skills · skills/cascading-failures/SKILL.md · How one slow dependency becomes a total outage: the amplification loop and the four points that close it — retry…

robsonkades/agent-skills · skills/change-data-capture-operations/SKILL.md · Operating Debezium source CDC through snapshots, lag, restarts, log retention and failover. Use when PostgreSQL WAL or…

robsonkades/agent-skills · skills/circuit-breakers/SKILL.md · The breaker as a state machine that stops calling a failing dependency: closed, open and half-open; choosing rate…

robsonkades/agent-skills · skills/clean-delivery-workflow/SKILL.md · The order of work for a change, and how much of that order a given change actually warrants: understanding before…

robsonkades/agent-skills · skills/code-cache-segments/SKILL.md · The JDK 17-25 segmented code cache, GC-driven unloading, fragmentation, segment sizing, and jcmd…

robsonkades/agent-skills · skills/code-review/SKILL.md · Reviewing a change as an engineering activity: setting review depth from the change's risk rather than its size…

robsonkades/agent-skills · skills/coding-agent-discipline/SKILL.md · The reporting and restraint rules for an AI agent changing someone's codebase: never claiming a result that was not…

robsonkades/agent-skills · skills/collaborative-feature-definition/SKILL.md · Co-authoring Product Features and Tech Features through focused question-and-revision rounds. For a Product Feature…

robsonkades/agent-skills · skills/compilation-and-inlining-logs/SKILL.md · Reading what the JIT actually did: the columns of -XX:+PrintCompilation and its flag characters, -XX:+PrintInlining and…

robsonkades/agent-skills · skills/completablefuture-composition/SKILL.md · Design and diagnose CompletionStage graphs with explicit execution, ownership, failure, timeout, cancellation, context…

robsonkades/agent-skills · skills/component-and-release-boundaries/SKILL.md · Deciding what becomes an independently releasable component — a Maven module, a JPMS module, a published library — and…

robsonkades/agent-skills · skills/concurrency-diagnostics/SKILL.md · Evidence-led diagnosis of deadlock, starvation, livelock, saturation, leaks and virtual-thread scheduler problems…

robsonkades/agent-skills · skills/concurrency-limiting-and-bulkheads/SKILL.md · Engineer process-local concurrency limits and bulkheads around scarce resources, with explicit admission deadlines…

robsonkades/agent-skills · skills/concurrency-testing/SKILL.md · Testing concurrent Java so failures appear in CI rather than in an incident: what a passing concurrency test does and…

robsonkades/agent-skills · skills/concurrent-collections-and-synchronizers/SKILL.md · Choosing between the members of java.util.concurrent once the family is settled, and the parameter that makes it…

robsonkades/agent-skills · skills/connection-pool-sizing/SKILL.md · Sizing and diagnosing a JDBC connection pool: L = λ × W where W is connection hold time rather than query latency, the…

robsonkades/agent-skills · skills/consensus-and-quorums/SKILL.md · Crash-fault consensus and quorum reasoning: FLP, safety versus liveness, majority 2f+1, R + W > N intersection and its…

robsonkades/agent-skills · skills/consistency-models/SKILL.md · Choosing distributed consistency guarantees as an engineering decision: linearizability, sequential/causal ordering…

robsonkades/agent-skills · skills/consistent-hashing/SKILL.md · Stable key-to-node placement across membership changes: modulo remapping, consistent-hash rings, virtual points…

robsonkades/agent-skills · skills/container-awareness/SKILL.md · What the JVM actually detects inside a container: cgroup v1 versus v2 detection, ActiveProcessorCount and how a CPU…

robsonkades/agent-skills · skills/continuous-profiling/SKILL.md · Designing and operating always-on production profiling: question-driven signal choice, permanent overhead and coverage…

robsonkades/agent-skills · skills/coordinated-omission/SKILL.md · Coordinated omission in depth: response-coupled sampling, open/closed/semi-open workload models…

robsonkades/agent-skills · skills/cpu-cache-and-numa/SKILL.md · Hardware-aware Java: cache-line coherence and locality, false sharing and how it differs from lock contention, object…

robsonkades/agent-skills · skills/cross-service-query-design/SKILL.md · Choose API composition or a read model when a query joins data owned by multiple services, a list needs cross-service…

robsonkades/agent-skills · skills/data-source-patterns/SKILL.md · Choosing how code reaches the database — Table Data Gateway, Row Data Gateway, Active Record or Data Mapper — from the…

robsonkades/agent-skills · skills/database-bulk-loading/SKILL.md · Designing and diagnosing high-volume database ingestion from the JVM across PostgreSQL, MySQL, and SQL Server: JDBC…

robsonkades/agent-skills · skills/database-engine-selection-and-migration/SKILL.md · Choosing among SQL Server, MySQL/InnoDB, and PostgreSQL for a greenfield system, or planning a migration between them…

robsonkades/agent-skills · skills/database-index-design/SKILL.md · Designing and governing an index portfolio across SQL Server, MySQL/InnoDB, and PostgreSQL: deriving composite keys…

robsonkades/agent-skills · skills/database-performance/SKILL.md · Evidence-first triage and routing for database performance questions across SQL Server, MySQL/InnoDB, PostgreSQL, JDBC…

robsonkades/agent-skills · skills/debugging/SKILL.md · Finding the cause of a fault instead of a change that makes the symptom go away: reproducing before diagnosing…

robsonkades/agent-skills · skills/delivery-semantics/SKILL.md · Precise end-to-end delivery and processing semantics: acknowledgement placement, loss and duplicate windows, Kafka…

robsonkades/agent-skills · skills/deoptimization/SKILL.md · Deoptimisation and recompilation on HotSpot: uncommon traps and their reason codes, the none / maybe_recompile /…

robsonkades/agent-skills · skills/distributed-aggregation-and-barriers/SKILL.md · Correct and recoverable aggregation across workers: algebraic laws, duplicate attempts, numeric reproducibility…

robsonkades/agent-skills · skills/distributed-failure-catalogue/SKILL.md · Evidence-oriented recognition index for recurring distributed failure shapes: overload amplification, gray and…

robsonkades/agent-skills · skills/distributed-locks-and-leases/SKILL.md · Cross-process exclusion through leases, session/transaction locks and fencing: stale holders, owner-safe release…

robsonkades/agent-skills · skills/distributed-systems-testing/SKILL.md · Testing the failure behaviour a distributed system claims: injecting latency, errors, partitions and process death…

robsonkades/agent-skills · skills/distributed-systems/SKILL.md · Triage and routing entry point for cross-process Java systems. Classifies design questions and production symptoms…

robsonkades/agent-skills · skills/distributed-tracing-design/SKILL.md · Designing trace topology and semantics: selecting actionable span boundaries, stable operation names, kinds, status and…

robsonkades/agent-skills · skills/distributed-transactions-and-sagas/SKILL.md · Coordinating a business operation across transactional owners: dual writes, XA/2PC, persisted sagas, compensation…

robsonkades/agent-skills · skills/distribution-boundaries/SKILL.md · Deciding whether a boundary should be a process boundary, and designing it when it must be: what distribution actually…

robsonkades/agent-skills · skills/domain-logic-organization/SKILL.md · Choosing where business rules live — Transaction Script, Domain Model or Table Module — from the shape of the logic…

robsonkades/agent-skills · skills/ebpf-for-jvm/SKILL.md · Using eBPF/bpftrace to measure kernel-visible behavior around a JVM without inventing attribution: selecting stable…

robsonkades/agent-skills · skills/engineering-communication/SKILL.md · Communicating engineering facts to people who will act on them: stating what is true, what follows from it, what is…

robsonkades/agent-skills · skills/enterprise-application-architecture/SKILL.md · The entry point for reasoning about an enterprise application's architecture: what makes these systems distinctive…

robsonkades/agent-skills · skills/enterprise-architecture-smells/SKILL.md · Detecting structural problems in an enterprise application from evidence, and telling genuine harm apart from…

robsonkades/agent-skills · skills/enterprise-base-patterns/SKILL.md · The small structural patterns that hold an enterprise application together — Gateway, Mapper, Layer Supertype…

robsonkades/agent-skills · skills/enterprise-transactions/SKILL.md · Transaction boundaries as an architectural decision: where a transaction starts and ends, what isolation level actually…

robsonkades/agent-skills · skills/epsilon-and-shenandoah-internals/SKILL.md · Epsilon as a measurement instrument (isolating allocation cost, failing fast against an allocation budget, sizing from…

robsonkades/agent-skills · skills/escape-analysis-internals/SKILL.md · C2 escape-analysis internals: connection graphs, escape-state propagation, flow insensitivity, bytecode escape…

robsonkades/agent-skills · skills/estimation-under-uncertainty/SKILL.md · Producing a software estimate that carries its own uncertainty instead of hiding it: a range with explicit probability…

robsonkades/agent-skills · skills/event-driven-architecture/SKILL.md · Choosing facts, asynchronous commands or request/response across services; then designing choreography/orchestration…

robsonkades/agent-skills · skills/event-sourcing/SKILL.md · Event streams as authoritative state: adoption criteria, stream boundaries, expected-version appends, command…

robsonkades/agent-skills · skills/executors-and-task-lifecycle/SKILL.md · Engineering the full lifecycle of tasks accepted by Java executors: ownership, admission, queue/grow behavior…

robsonkades/agent-skills · skills/failure-models/SKILL.md · Stating a system's fault model before designing against it: crash-stop, crash-recovery, omission, timing and Byzantine…

robsonkades/agent-skills · skills/false-sharing-and-contended/SKILL.md · Proving and mitigating cache-line false sharing between independent locations with hot writes. Covers ownership and…

robsonkades/agent-skills · skills/feature-architecture-analysis/SKILL.md · Enumerating what a feature actually touches, with paths: which modules, layers, contracts, schemas, message topics…

robsonkades/agent-skills · skills/feature-context-analysis/SKILL.md · Reading the repository for one specific feature: which technologies and patterns are actually present, which components…

robsonkades/agent-skills · skills/feature-contract-definition/SKILL.md · Defining a versioned API, event, data, integration, security, or operational contract for a feature after its behavior…

robsonkades/agent-skills · skills/feature-decision-analysis/SKILL.md · Keeping the decision log for a feature and, before each entry, answering the two questions that make it trustworthy…

robsonkades/agent-skills · skills/feature-decomposition/SKILL.md · Deciding whether a feature should split and, when useful, defining independently valuable Product or Tech child…

robsonkades/agent-skills · skills/feature-discovery/SKILL.md · Separating what is actually established about a feature request from what has been filled in: a ledger in which every…

robsonkades/agent-skills · skills/feature-engineering/SKILL.md · Owning a Product Feature or Tech Feature from definition intake to completion review: selecting proportionate depth…

robsonkades/agent-skills · skills/feature-execution/SKILL.md · Implementing an authorized plan through coherent, verifiable resources: selecting ready work, implementing within…

robsonkades/agent-skills · skills/feature-feasibility-experiment/SKILL.md · Designing and evaluating the smallest PoC or experiment that resolves one decision-relevant uncertainty in a Product…

robsonkades/agent-skills · skills/feature-implementation-plan/SKILL.md · Assembling everything established about a feature into one document another engineer could execute without re-deriving…

robsonkades/agent-skills · skills/feature-progress-tracking/SKILL.md · Keeping a feature's state true while it is being built: one status per resource with defined transitions, a validation…

robsonkades/agent-skills · skills/feature-readiness-review/SKILL.md · The intake, pre-implementation, and completion gates for a feature: first validating the Product/Engineering or Tech…

robsonkades/agent-skills · skills/feature-requirement-clarification/SKILL.md · Deciding what to ask the user about a feature, when to ask it, and what stops work until it is answered: reusing…

robsonkades/agent-skills · skills/feature-risk-analysis/SKILL.md · Naming what could go wrong with a specific feature in a form that can be acted on: the failure stated as an event…

robsonkades/agent-skills · skills/feature-scope-analysis/SKILL.md · Fixing what a feature includes and, more usefully, what it deliberately excludes: sorting every candidate item into…

robsonkades/agent-skills · skills/feature-solution-analysis/SKILL.md · Producing the option set for a feature-level choice and the block that recommends one: always considering the simplest…

robsonkades/agent-skills · skills/flame-graph-analysis/SKILL.md · Interpreting flame graphs as weighted sampled call-path aggregates: identifying the selection event and denominator…

robsonkades/agent-skills · skills/forkjoinpool-and-work-stealing/SKILL.md · Design and diagnose ForkJoinPool workloads using work-stealing topology, task graphs, granularity, common-pool…

robsonkades/agent-skills · skills/framework-coupling-and-independence/SKILL.md · Deciding how much of a system may depend on its framework, and pricing that dependency honestly: which couplings are…

robsonkades/agent-skills · skills/g1-concurrent-marking/SKILL.md · G1's concurrent marking cycle: SATB and the pre-write barrier, the cycle phases and the single mark bitmap with TAMS…

robsonkades/agent-skills · skills/g1-internals/SKILL.md · How G1 actually works: uniform regions and the ergonomic sizing formula, remembered sets and the card table with its…

robsonkades/agent-skills · skills/g1-tuning-for-slo/SKILL.md · Deriving G1 flag values from a latency SLO and proving they helped: what `MaxGCPauseMillis` actually controls, the…

robsonkades/agent-skills · skills/gc-fundamentals/SKILL.md · How JVM garbage collectors work, as the mental model behind every GC diagnosis: the generational hypothesis and where…

robsonkades/agent-skills · skills/gc-log-analysis/SKILL.md · Configuring and reading JVM unified GC logs: the -Xlog:gc* baseline with decorators and rotation, the cause field, the…

robsonkades/agent-skills · skills/gof-abstract-factory/SKILL.md · Abstract Factory in modern Java: the pattern exists to keep a _family_ of related objects mutually consistent when the…

robsonkades/agent-skills · skills/gof-adapter/SKILL.md · Adapter in modern Java: making an existing type usable through an interface it was not written for, and keeping a…

robsonkades/agent-skills · skills/gof-bridge/SKILL.md · Bridge in modern Java: separating an abstraction hierarchy from an implementation hierarchy so the two vary…

robsonkades/agent-skills · skills/gof-builder/SKILL.md · Builder in modern Java: distinguish the original GoF separation of construction process from representation from the…

robsonkades/agent-skills · skills/gof-chain-of-responsibility/SKILL.md · Chain of Responsibility in modern Java, and the pipeline it is usually confused with: the classical first-accepting…

robsonkades/agent-skills · skills/gof-command/SKILL.md · Command in modern Java: turning an invocation into an object so it can be queued, logged, scheduled, retried or undone…

robsonkades/agent-skills · skills/gof-composite/SKILL.md · Composite in modern Java: treating a leaf and a tree of leaves through one interface, and the hazards that come with a…

robsonkades/agent-skills · skills/gof-decorator/SKILL.md · Decorator in modern Java: wrapping an object in something of its own interface to add behaviour, stackably, at runtime…

robsonkades/agent-skills · skills/gof-facade/SKILL.md · Facade in modern Java: one coherent entry point over a subsystem of collaborators, so callers depend on an intention…

robsonkades/agent-skills · skills/gof-factory-method/SKILL.md · Factory Method in modern Java, and the three different things that share its name: the GoF pattern (an overridable…

robsonkades/agent-skills · skills/gof-flyweight/SKILL.md · Flyweight in modern Java: sharing one immutable instance across many logical occurrences to reduce retained memory…

robsonkades/agent-skills · skills/gof-interpreter/SKILL.md · Interpreter in modern Java: representing a small language as a typed tree and evaluating it, using per-node…

robsonkades/agent-skills · skills/gof-iterator/SKILL.md · Iterator in modern Java: traversing an aggregate without exposing it, and choosing between Iterator, Stream and…

robsonkades/agent-skills · skills/gof-mediator/SKILL.md · Mediator in modern Java, treated as high-risk: replacing many-to-many collaboration with a hub that owns the…

robsonkades/agent-skills · skills/gof-memento/SKILL.md · Memento in modern Java: capturing an object's state so it can be restored later, without exposing that state to whoever…

robsonkades/agent-skills · skills/gof-observer/SKILL.md · Observer in Java: choosing and reviewing in-process listener contracts for ordering, errors, threads, registration…

robsonkades/agent-skills · skills/gof-pattern-antipatterns/SKILL.md · Detecting and removing design-pattern misuse: abstractions that trace to no requirement, patterns chosen because a name…

robsonkades/agent-skills · skills/gof-pattern-confusion/SKILL.md · Telling apart the patterns that look alike, so a design is not chosen because a name sounded right. Covers the four…

robsonkades/agent-skills · skills/gof-pattern-selection/SKILL.md · Getting from a stated design problem to a candidate pattern, or to no pattern, without choosing by familiarity. The…

robsonkades/agent-skills · skills/gof-pattern-thinking/SKILL.md · Reasoning from a design problem to a design, where a Gang-of-Four pattern is one possible outcome and "no pattern" is…

robsonkades/agent-skills · skills/gof-patterns-and-distribution/SKILL.md · What happens to a Gang-of-Four pattern when the collaboration crosses a process boundary, and which additional…

robsonkades/agent-skills · skills/gof-patterns-in-modern-java/SKILL.md · Which Gang-of-Four patterns modern Java and Spring already implement, which they only change the expression of, and…

robsonkades/agent-skills · skills/gof-prototype/SKILL.md · Prototype in modern Java: producing a new object from an existing instance's state, when the configuration is expensive…