jafar-perf
claudecodexJVM performance engineering with the Jafar MCP server: triage, CPU, latency, GC, memory-leak and regression playbooks, plus specialist subagents.
9 skills · 7 agents · 1 MCP server
Goal-first incident diagnosis with safe, focused BTrace probes.
Plugin btrace-observability from marketplace btraceio-agent-plugins in btraceio/agent-plugins. Commands read from the repo's manifest — 8 days ago.
This plugin runs code on your machine — it starts local MCP servers. The exact commands are listed below; read them before installing.
btrace-data-safetyUse when a BTrace diagnostic may affect production performance, access sensitive data, require unsafe/trusted mode, or need a wider instrumentation scope.
btrace-endpoint-diagnosticsUse when a user asks what happens when an HTTP endpoint, RPC operation, message handler, or request path is invoked in a live Java application.
btrace-failure-analysisUse when a Java endpoint, service, consumer, or background job fails, returns errors, throws exceptions, or needs an exception source investigation.
btrace-latency-analysisUse when a user wants to find why a Java method, endpoint, consumer, or dependency call is slow, has poor throughput, or shows latency spikes.
btrace-legacy-libs-migrationUse when custom classes stopped resolving after upgrading BTrace, when a target passes libs=<profile> or ships a btrace-libs directory, or when an integration relies on btrace.system.appendJar and must become a proper extension.
btrace-mcp-operationsUse when an AI client should operate BTrace through the BTrace MCP server to list local JVMs, deploy probes, trigger probe events, or clean up diagnostic sessions.
btrace-observabilityUse when a user wants to understand live Java application behavior with BTrace. Coordinate the bundled endpoint, latency, failure, runtime-access, lifecycle, and data-safety skills to answer the incident question.
btrace-oneliner-triageUse when a user needs a fast, disposable BTrace observation for a live JVM and a full Java probe would be unnecessary or premature.
btrace-probe-lifecycleUse when deploying, verifying, reconnecting to, collecting output from, or removing a BTrace probe.
btrace-runtime-accessUse when BTrace must reach a Java process through SSH, Docker, Kubernetes, a sidecar, a bastion, or another cloud-runtime boundary.
btrace-startup-and-packagingUse when dynamic attach is unavailable or unsuitable, or when BTrace must be deployed at JVM startup in immutable images, distroless containers, Kubernetes, Spark, or Hadoop.
btraceruns: jbang ${CLAUDE_PLUGIN_ROOT}/mcp/src/main/java/io/btrace/mcp/BTraceMcpServer.java
JVM performance engineering with the Jafar MCP server: triage, CPU, latency, GC, memory-leak and regression playbooks, plus specialist subagents.
9 skills · 7 agents · 1 MCP server
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