performance SKILL.md skillA

performance from event4u-app/agent-config is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add event4u-app/agent-config/performance@git:20260802.42c4960

Pins git:20260802.42c4960 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
event4u-app/agent-config
Path
src/skills/performance/SKILL.md
Versions recorded
3
Latest version
git:20260802.42c4960, committed Aug 2, 2026
First version recorded
Jun 3, 2026
Size
3,067 bytes
Repository stars
18
License
MIT

Use when optimizing application performance — caching strategies, eager loading, query optimization, Redis patterns, or background job design.

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

# performance

## When to use

Use when optimizing slow endpoints, designing caching, or improving query performance.

Do NOT use when:
- Database schema design (use `database` skill)
- Queue job creation (use `jobs-events` skill)

## Procedure: Optimize performance

### Step 0: Identify the bottleneck

1. Don't optimize prematurely — measure first.
2. Use `DB::enableQueryLog()` or Telescope to find slow queries.
3. Check for N+1 queries on list endpoints.
4. Search for existing cache services in the project.

**Performance complexity is a claim, and a claim needs evidence.** No cache
layer, no denormalised column, no materialised view, no read replica ships on
"this will be slow" — it ships on a profile, a query log, or a timing that names
the bottleneck. The added complexity is permanent (invalidation bugs, stale
reads, a second source of truth); the speedup is hypothetical until measured.
State the measurement in the change, or do not add the mechanism.

**Carve-out — this does not override the `scale-discipline` floor.** Where that
pack is installed, R-A2 *mandates* an index on every FK and every WHERE / ORDER
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add event4u-app/agent-config/performance@sha256:736d2424f394f216

The line at the top of this page pins the label git:20260802.42c4960, 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_x5x7vlfcpgyn6xre.svg)](https://markdownregistry.com/a/art_x5x7vlfcpgyn6xre)

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

Versions

The registry has recorded 3 versions of this file, between Jun 3, 2026 and Aug 2, 2026, about one every 30 days.

versioncommittedcommitsizeaudit
git:20260802.42c4960 latest2026-08-02 42c4960 3,067 BA view · diff
git:20260711.0f047762026-07-11 0f04776 2,143 BA view · diff
git:20260603.668ed882026-06-03 668ed88 2,110 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 (3067 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

event4u-app/agent-config · 18 stars · license MIT · pushed 2026-10-31 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_x5x7vlfcpgyn6xre
GET https://markdownregistry.com/api/v1/resolve?ref=event4u-app/agent-config/performance
GET https://markdownregistry.com/api/v1/blob/736d2424f394f2168e6dc9cccf3b5b45e4380be9dab6625faede99be425996f6

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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Every file in event4u-app/agent-config

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