phargus-memory

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Investigate Node.js memory growth with Phargus raw samples, allocation sites, and heap snapshot summaries or diffs. Use for suspected leaks, rising RSS, or determining what memory grew.

6installs

Sourcepharn-dev/skills

Added on2026-10-25

NPX Install

npx skill4agent add pharn-dev/skills phargus-memory

SKILL.md Content

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Phargus Memory

Identify the observed memory growth and test whether it persists under comparable work. Read memory and data semantics. Use tools for summary and heap analysis.

Resolve this skill's absolute directory. Summarize the recording and establish workload, warmup, GC context and data quality. Request raw NDJSON when external/arrayBuffers are missing.
Separate heap, RSS and external/buffer growth. Inspect comparable workload cycles and observed post-GC baselines before claiming a leak.
Analyze supplied snapshots with the heap command and --project pointing to the app. Compare object-name counts and self sizes; these are not retaining paths or dominators.
If needed, prepare an application-side capture for the user's requested operation. Snapshot/allocation APIs run in the monitored process, and snapshot capture pauses it. Read compatibility before choosing those APIs.
Investigate supported sites/object groups and test the suspected correction over repeated equivalent workload cycles.

Return measured trajectories, capture/analysis limits, hypotheses and the next controlled experiment. Existing evidence may identify external pressure without proving a JS leak.

Example request: "RSS doubles after each batch; use these samples and snapshots to investigate."

phargus-memory

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SKILL.md Content

Phargus Memory