debugging-instruments SKILL.md skillB
debugging-instruments from jordancoin/ios-skills-collection is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jordancoin/ios-skills-collection/debugging-instruments@git:20260329.893209fPins git:20260329.893209f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jordancoin/ios-skills-collection
- Path
skills/dpearson2699--debugging-instruments/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260329.893209f, committed Mar 29, 2026
- Size
- 15,561 bytes
- Repository stars
- 6
- License
- a license file GitHub does not identify
Debug iOS apps and profile performance using LLDB, Memory Graph Debugger, and Instruments. Use when diagnosing crashes, memory leaks, retain cycles, main thread hangs, slow rendering, build failures, or when profiling CPU, memory, energy, and network usage.
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
# Debugging and Instruments Diagnose crashes, memory leaks, retain cycles, main thread hangs, and performance bottlenecks in iOS apps using LLDB, Memory Graph Debugger, and Instruments. Covers breakpoint workflows, memory graph analysis, hang detection, build failure triage, and Instruments profiling for CPU, memory, energy, and network. ## Contents - [LLDB Debugging](#lldb-debugging) - [Memory Debugging](#memory-debugging) - [Hang Diagnostics](#hang-diagnostics) - [Build Failure Triage](#build-failure-triage) - [Instruments Overview](#instruments-overview) - [Common Mistakes](#common-mistakes) - [Review Checklist](#review-checklist) - [References](#references) ## LLDB Debugging ### Essential Commands ```text (lldb) po myObject # Print object description (calls debugDescription) (lldb) p myInt # Print with type info (uses LLDB formatter) (lldb) v myLocal # Frame variable — fast, no code execution (lldb) bt # Backtrace current thread (lldb) bt all # Backtrace all threads (lldb) frame select 3 # Jump to frame #3 in the backtrace …
Read the whole file at its exact version.
How to install
mdr add jordancoin/ios-skills-collection/debugging-instruments@sha256:8f5c77311154588aThe line at the top of this page pins the label git:20260329.893209f, 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_whocghnyepu6qxce)
6 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Mar 29, 2026.
Audit of the latest version
- fail: No recursive delete of root, home or parent (matched: rm -rf ~/)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (15561 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 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
jordancoin/ios-skills-collection · 6 stars · license a license file GitHub does not identify · pushed 2026-09-10 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_whocghnyepu6qxce GET https://markdownregistry.com/api/v1/resolve?ref=jordancoin/ios-skills-collection/debugging-instruments GET https://markdownregistry.com/api/v1/blob/8f5c77311154588a86416155cd82393a1e2f0a0d9021b0c307b7d2814d40e227
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.