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Profile Node.js memory leaks with heap snapshots and retention-chain analysis. Use when debugging memory growth, object retention, listener leaks, timer leaks, stream leaks, or worker-thread memory issues (especially Lodestar network/discv5 threads).
Codex 또는 Claude로 설치 이 Prompt를 복사해 Codex, Claude 또는 다른 어시스턴트에 붙여 넣으면 Skill 페이지를 검토하고 설치를 진행할 수 있습니다.
SOC 직업 분류 기준
Track and summarize discussions from ethereum/eth-rnd-archive across selected Discord channels, with hourly monitoring and daily digest outputs. Use for protocol/R&D intelligence, spotting spec changes, and surfacing Lodestar-relevant action items from Eth R&D chatter.
Debug hosted/remote Ethereum devnets (ethpandaops networks like glamsterdam-devnet-N) with a Lodestar lens. Builds on the panda `query` + `investigate` skills and the 'debug devnet' runbook for the data/procedure; adds the cross-client 'read the failing client's own logs' method and a ChainSafe infra POV (SSH to Lodestar nodes, ChainSafe Grafana Loki). Hosted devnets, not local Kurtosis.
Run multi-persona code reviews on Lodestar PRs. Use when reviewing a PR, diff, or code change in ChainSafe/lodestar. Spawns specialized reviewer agents (bug hunter, security engineer, architect, etc.) with Lodestar-specific context, collects findings, and synthesizes a consolidated report. Covers PR review, code quality assessment, and security analysis for Ethereum consensus client code.
Multi-agent development workflow for complex Lodestar features. Use for any task requiring architecture planning, implementation, and review. Covers spec design with gpt-advisor, implementation via Codex CLI or Claude CLI, review with sub-agents, and PR creation.
Debug Lodestar beacon node issues by running a local mainnet node with checkpoint sync and engineMock. Use for investigating networking bugs, peer discovery issues, identify failures, metrics anomalies, or any behavior that needs real-world peer interactions without a full execution client.
Query ChatGPT GPT-5.4 Pro from this headless server using Camoufox (Firefox stealth browser). Use when Oracle browser mode is needed under Cloudflare Turnstile constraints and Chrome/Chromium headless paths fail.
| name | memory-profiling |
| description | Profile Node.js memory leaks with heap snapshots and retention-chain analysis. Use when debugging memory growth, object retention, listener leaks, timer leaks, stream leaks, or worker-thread memory issues (especially Lodestar network/discv5 threads). |
Profile a suspected memory leak by comparing heap snapshots over time and tracing retention chains.
T0).T1, optionally T2).scripts/analyze-heap.mjs.scripts/find-retainers.mjsscripts/trace-chains.mjsUse Lodestar REST profiling endpoints:
# Network worker heap snapshot
curl -s -X POST "http://127.0.0.1:19597/eth/v1/lodestar/write_heapdump?thread=network&dirpath=/tmp/heap"
# Main thread heap snapshot
curl -s -X POST "http://127.0.0.1:19597/eth/v1/lodestar/write_heapdump?thread=main&dirpath=/tmp/heap"
# Discv5 worker heap snapshot
curl -s -X POST "http://127.0.0.1:19597/eth/v1/lodestar/write_heapdump?thread=discv5&dirpath=/tmp/heap"
# Constructor-level growth between two snapshots
node scripts/analyze-heap.mjs <snap1.heapsnapshot> <snap2.heapsnapshot>
# Who retains a constructor
node scripts/find-retainers.mjs <snap.heapsnapshot> <ConstructorName> [limit]
# Retention chains for sample objects
node scripts/trace-chains.mjs <snap.heapsnapshot> <ConstructorName>
Listener, Timeout, AbortSignal, stream/muxer objects, Map, SetAfter patching cleanup logic, rerun the same scenario and confirm:
T0 and T1