performance:profile SKILL.md skillA

performance:profile from bendrucker/claude is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add bendrucker/claude/performance:profile@git:20261027.f5dc745

Pins git:20261027.f5dc745 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
bendrucker/claude
Path
plugins/performance/skills/profile/SKILL.md
Versions recorded
2
Latest version
git:20261027.f5dc745, committed Oct 27, 2026
First version recorded
Sep 28, 2026
Size
5,006 bytes
Repository stars
18
License
MIT

Use when asked why a program, script, or web page is slow or memory-heavy, or what dominates its runtime, before deciding what to change.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Profile

Goal: a ranked, readable list of where the program's time or peak memory goes on the scenario the user cares about, with each entry's share of the total. Every optimization decision rests on that list, so it must come from a measurement of the real scenario.

## Tools

- `samply`: !`samply --version 2>/dev/null || echo "not found. Required for native and whole-process profiles."`
- `hyperfine`: !`hyperfine --version 2>/dev/null || echo "not found. Needed for the wall/CPU split."`
- `bun`: !`bun --version 2>/dev/null || echo "not found."`
- `node`: !`node --version 2>/dev/null || echo "not found."`
- `agent-browser`: !`agent-browser --version 2>/dev/null || echo "not found. Required for web apps."`
- `py-spy`: !`py-spy --version 2>/dev/null || echo "not found. Needed only for Python."`
- `malloc_history`: !`command -v malloc_history >/dev/null && echo found || echo "not found. Needed for native memory on macOS."`
- `heaptrack`: !`heaptrack --version 2>/dev/null || echo "not found. Needed for native memory on Linux."`

When a required tool is missing and the project's own tooling does not cover its job, tell the user which one, then stop.

## Existing Tooling
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add bendrucker/claude/performance:profile@sha256:dc473bcfb948f8d0

The line at the top of this page pins the label git:20261027.f5dc745, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_mlgtr4suzhtzwjnh.svg)](https://markdownregistry.com/a/art_mlgtr4suzhtzwjnh)

7 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between Sep 28, 2026 and Oct 27, 2026, about one every 28 days.

versioncommittedcommitsizeaudit
git:20261027.f5dc745 latest2026-10-27 f5dc745 5,006 BA view · diff
git:20260928.edc05322026-09-28 edc0532 4,392 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (5006 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

bendrucker/claude · 18 stars · license MIT · pushed 2026-11-07 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_mlgtr4suzhtzwjnh
GET https://markdownregistry.com/api/v1/resolve?ref=bendrucker/claude/performance:profile
GET https://markdownregistry.com/api/v1/blob/dc473bcfb948f8d0c6073a7f1059496046d941b2d0f1ae326e281a592562e768

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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