ios-runtime-forensics-workflow

ios-runtime-forensics-workflow is a skill for Claude Code, Codex from gaelic-ghost/socket. It costs 54 tokens per session (758 once invoked), scanned A, original, Apache-2.0.

An evidence-based workflow for investigating iOS Simulator performance problems and memory leaks. It uses performance traces for CPU or latency issues and memory graphs for retained objects and ownership.

In plain words
What is it for?
Use it to measure launch or runtime latency, inspect CPU-heavy work, find retain cycles, and identify objects that remain in memory after an interaction.
Why use it?
It replaces guesses about runtime behavior with repeatable captures tied to a specific reproduction, app build, simulator, and expected result.

Skill for Claude CodeCodex

Written for Claude Code and Codex: shipped in a Claude Code plugin, but also agents/openai.yaml present.

Part of the apple-dev-skills plugin — 65 skills, 2 MCP servers shipped together

Good fit Use it to measure launch or runtime latency, inspect CPU-heavy work, find retain cycles, and identify objects that remain in memory after an interaction.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/gaelic-ghost/socket/ios-runtime-forensics-workflow
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add gaelic-ghost/socket --skill ios-runtime-forensics-workflow
Clone the repo
git clone --depth 1 https://github.com/gaelic-ghost/socket

Made for: Claude Code, Codex.

Or install apple-dev-skills, the plugin that ships this one along with the rest of its 65 skills, 2 MCP servers.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for ios-runtime-forensics-workflow

README.md
[![agentmods](https://agentmods.dev/badge/skills/gaelic-ghost/socket/ios-runtime-forensics-workflow/github.svg)](https://agentmods.dev/skills/gaelic-ghost/socket/ios-runtime-forensics-workflow)
Your own site
<a href="https://agentmods.dev/skills/gaelic-ghost/socket/ios-runtime-forensics-workflow"><img src="https://agentmods.dev/badge/skills/gaelic-ghost/socket/ios-runtime-forensics-workflow/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for ios-runtime-forensics-workflow

Your own site · 80×15
<a href="https://agentmods.dev/skills/gaelic-ghost/socket/ios-runtime-forensics-workflow"><img src="https://agentmods.dev/badge/skills/gaelic-ghost/socket/ios-runtime-forensics-workflow.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 758 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00054 $0.00758
Opus 5.5 $0.00022 $0.00303
Sonnet 5.5 $0.00011 $0.00152
Haiku 4.5 $0.00005 $0.00076

Measured 1mo ago against content hash 6dd52edca6fb, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ios-runtime-forensics-workflow scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/apple-dev-skills/skills/ios-runtime-forensics-workflow/SKILL.md · 59 lines

How it starts

The opening of the file, as written. The whole thing — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.

iOS Runtime Forensics Workflow

Purpose

Provide two explicit evidence modes for a reproducible iOS Simulator issue: performance-trace for focused ETTrace/symbolicated latency or CPU work, and memory-graph for retained-object and leak ownership analysis. This skill owns evidence shape, not normal app build, launch, or UI driving.

When To Use

  • Use performance-trace for launch/runtime latency, CPU-heavy stacks, or comparison traces.
  • Use memory-graph for leaks, retain cycles, memory growth, or objects that should release after a known interaction.
  • Route simulator discovery, build, install, launch, logs, screenshots, and UI driving to xcode-build-run-workflow.

Single-Path Workflow

  1. Apply the Apple docs gate through explore-apple-swift-docs. Confirm the current Xcode/Simulator evidence mechanism before acting.
  2. Define one reproduction, start/stop boundary, target app build, simulator UDID, OS, Xcode version, and expected release or latency behavior.
  3. Select exactly one mode: performance-trace or memory-graph. Do not mix CPU and ownership conclusions in one unsupported capture.
  4. For performance-trace, read references/performance-trace-evidence.md, capture a focused trace with matching symbols, and identify hot stacks only after symbolication.
  5. For memory-graph, read references/memory-graph-evidence.md, drive the release-producing flow, capture a memgraph, inspect app-owned retained types, and follow ownership evidence to the retaining path.
  6. Make the smallest root-cause change, then recapture the same flow on the same simulator where practical.
  7. Report the exact capture boundary, tool/version context, what the artifact proves, what it does not prove, and the before/after delta.

Inputs

  • reproducible simulator flow, target app/scheme, simulator UDID, and build configuration
  • expected release/lifetime or performance boundary
  • mode: performance-trace or memory-graph
  • existing trace, memgraph, logs, screenshots, or symbol files when available

Read the full file on GitHub · 59 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago First seen · 59 lines · 54 tokens per session scan A 6dd52edca6fb

Subscribe to this mod's changes

ios-runtime-forensics-workflow is a skill published in the GitHub repository gaelic-ghost/socket (7 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 54 tokens to every session and 758 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

Related

Other skills, from other repositories

bug-fix

Use when a bug, regression, or unexpected behaviour is reported and the user wants it fixed end to end — "why is X broken", "this stopped working after Y", "fix this crash". Also use when a symptom is known but its cause is not. Not for building new behaviour, and not for a change whose cause is already proven.

kardebadas/claude-plugin · 74 tokens

bug-investigate

Use when someone wants to know WHY something is broken and has not asked for it to be fixed — "why is this happening", "what's causing this error", "find out what's wrong", "diagnose this before we decide". Also use before committing to a fix, when the cause is unknown and the decision depends on it. Not for fixing …

kardebadas/claude-plugin · 83 tokens

operating-cadence

Designs the rhythm an organization runs on — which reviews happen weekly, monthly and quarterly, what each one decides, who owns the numbers presented, and how a signal at the front line reaches the people who can act on it. Use this to set up a management operating system, fix a meeting calendar that produces no…

cbrock84/headcount · 95 tokens

serena

Serena code intelligence — LSP-powered symbol navigation, diagnostics, and targeted code surgery. Activate before complex refactors, cross-file analysis, or when graph tools need symbol-level depth.

datit309/supergraph · 40 tokens

diagnose

Structured 6-phase debugging. Build feedback loop first, reproduce deterministically, hypothesize with ranked falsifiable theories, instrument one variable at a time, fix with regression test, cleanup. Use when a bug exists, tests fail unexpectedly, or behavior is wrong and cause is unknown.

datit309/supergraph · 59 tokens

fix

Plan-aware auto-fix loop after coding. Runs tests, lint, format, and graph checks. Updates plan task status. Use after execute/tdd.

datit309/supergraph · 33 tokens