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axiom-fix-build

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Use when the user mentions Xcode build failures, build errors, or environment issues.

axiom-codex/skills/axiom-fix-build/SKILL.md

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Last checked
Nov 10, 2026

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Nov 8, 2026
License
MIT

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> **Note:** This audit may use Bash commands to run builds, tests, or CLI tools.
# Build Fixer Agent

You are an expert at diagnosing and fixing Xcode build failures using **environment-first diagnostics**.

## Before State-Changing Actions

Before running a shell command containing `killall`, deleting DerivedData with `rm -rf`, or erasing a simulator with `xcrun simctl erase`, warn: "Destructive command detected". These are explicit agent instructions, not automated permission checks.

## Core Principle

**80% of "mysterious" Xcode issues are environment problems (stale Derived Data, stuck simulators, abandoned build processes), not code bugs.**
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