capacitor-performance SKILL.md skillA
capacitor-performance from cap-go/capgo-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add cap-go/capgo-skills/capacitor-performance@git:20261011.86834d4Pins git:20261011.86834d4 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- cap-go/capgo-skills
- Path
plugins/capacitor-quality/skills/capacitor-performance/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261011.86834d4, committed Oct 11, 2026
- First version recorded
- May 1, 2026
- Size
- 8,399 bytes
- Repository stars
- 74
- License
- MIT
Diagnoses and fixes performance problems specific to Capacitor apps - slow cold start or long splash, white screen after camera/backgrounding (WKWebView "WebView process terminated" reload, Android onRenderProcessGone), large base64 payloads over the native bridge (Camera, Filesystem.readFile, CapacitorHttp), jank in the WebView, memory growth from unremoved plugin listeners, oversized Preferences storage, slow Android WebView versions, and debug logging left on in release. Covers profiling…
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
# Capacitor Performance Find the bottleneck first (WebView JS, bridge, native, or network), then fix the specific cause. Generic web advice (code splitting, image compression, virtual lists) still applies; this skill focuses on what is different inside Capacitor. ## When to Use TRIGGER when: - Cold start is slow, splash stays long, or the first screen is blank for seconds. - App "restarts" or shows a white screen after taking a photo, opening a big file, or returning from background. - Native calls feel slow, especially with images, files, or large HTTP responses. - Scrolling/animations jank only on device (often older Android WebView). - Memory grows over time; listeners pile up. Do not use: - Crashes, native stack traces -> `debugging-capacitor`, `capacitor-native-observability`. - Getting logs off a device -> `ios-android-logs`. - Offline storage design / SQLite migration -> `capacitor-offline-first`, `sqlite-to-fast-sql`. - Splash screen setup -> `capacitor-splash-screen`; keyboard resize jank -> `capacitor-keyboard`. - OTA bundle size and delta updates -> `capgo-live-updates`. ## Procedure …
Read the whole file at its exact version.
How to install
mdr add cap-go/capgo-skills/capacitor-performance@sha256:6e6063af2f5d51b5The line at the top of this page pins the label git:20261011.86834d4, 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.
[](https://markdownregistry.com/a/art_ixofw3zjgtrhleky)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between May 1, 2026 and Oct 11, 2026, about one every 163 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261011.86834d4 latest | 2026-10-11 | 86834d4 | 8,399 B | A | view · diff |
| git:20260501.ed3e92e | 2026-05-01 | ed3e92e | 3,336 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (8399 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
cap-go/capgo-skills · 74 stars · license MIT · pushed 2026-10-17 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ixofw3zjgtrhleky GET https://markdownregistry.com/api/v1/resolve?ref=cap-go/capgo-skills/capacitor-performance GET https://markdownregistry.com/api/v1/blob/6e6063af2f5d51b513e9ac6ee4c5969a45e1a48816bf251976a36a07d1345c41
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.
More from cap-go/capgo-skills
Every file in cap-go/capgo-skills